window.c File Reference

#include <win32k.h>
#include <immdev.h>
#include <unaligned.h>

Include dependency graph for window.c:

Go to the source code of this file.

Classes
struct	HEADCOMBO
struct	_WND2CBOX
struct	LB_DESCR
struct	_WND2LB

Macros
#define	GROW_COUNT   8
#define	INITIAL_COUNT   32
#define	IS_DEFAULT(x)   ((x) == CW_USEDEFAULT || (x) == (SHORT)0x8000)
#define	CBF_BUTTONDOWN   0x0002
#define	GWLP_CONSOLE_LEADER_PID   0
#define	GWLP_CONSOLE_LEADER_TID   4

Typedefs
typedef struct HEADCOMBO *	LPHEADCOMBO
typedef struct _WND2CBOX	WND2CBOX
typedef struct _WND2CBOX *	PWND2CBOX
typedef struct _WND2LB	WND2LB
typedef struct _WND2LB *	PWND2LB

Functions
	DBG_DEFAULT_CHANNEL (UserWnd)
PVOID FASTCALL	IntReAllocatePoolWithTag (POOL_TYPE PoolType, PVOID pOld, SIZE_T cbOld, SIZE_T cbNew, ULONG Tag)
BOOL FASTCALL	UserUpdateUiState (PWND Wnd, WPARAM wParam)
PWND FASTCALL	IntGetWindowObject (HWND hWnd)
PWND FASTCALL	VerifyWnd (PWND pWnd)
PWND FASTCALL	ValidateHwndNoErr (HWND hWnd)
PWND FASTCALL	UserGetWindowObject (HWND hWnd)
ULONG FASTCALL	IntSetStyle (PWND pwnd, ULONG set_bits, ULONG clear_bits)
BOOL FASTCALL	IntIsWindow (HWND hWnd)
BOOL FASTCALL	IntIsWindowVisible (PWND Wnd)
PWND FASTCALL	IntGetParent (PWND Wnd)
BOOL FASTCALL	IntEnableWindow (HWND hWnd, BOOL bEnable)
HWND *FASTCALL	IntWinListChildren (PWND Window)
static BOOL	IntWndIsDefaultIme (_In_ PWND Window)
HWND *FASTCALL	IntWinListOwnedPopups (PWND Window)
PWND FASTCALL	IntGetNonChildAncestor (PWND pWnd)
BOOL FASTCALL	IntIsTopLevelWindow (PWND pWnd)
BOOL FASTCALL	IntValidateOwnerDepth (PWND Wnd, PWND Owner)
HWND FASTCALL	IntGetWindow (HWND hWnd, UINT uCmd)
DWORD FASTCALL	IntGetWindowContextHelpId (PWND pWnd)
VOID FASTCALL	IntRemoveTrackMouseEvent (PDESKTOP pDesk)
static void	IntSendDestroyMsg (HWND hWnd)
static VOID	UserFreeWindowInfo (PTHREADINFO ti, PWND Wnd)
LRESULT	co_UserFreeWindow (PWND Window, PPROCESSINFO ProcessData, PTHREADINFO ThreadData, BOOLEAN SendMessages)
WNDPROC FASTCALL	IntGetWindowProc (PWND pWnd, BOOL Ansi)
static WNDPROC	IntSetWindowProc (PWND pWnd, WNDPROC NewWndProc, BOOL Ansi)
BOOL FASTCALL	IntIsChildWindow (PWND Parent, PWND BaseWindow)
VOID FASTCALL	IntLinkWindow (PWND Wnd, PWND WndInsertAfter)
VOID FASTCALL	IntLinkHwnd (PWND Wnd, HWND hWndPrev)
VOID FASTCALL	IntProcessOwnerSwap (PWND Wnd, PWND WndNewOwner, PWND WndOldOwner)
static HWND FASTCALL	IntSetOwner (HWND hWnd, HWND hWndNewOwner)
PWND FASTCALL	co_IntSetParent (PWND Wnd, PWND WndNewParent)
HWND FASTCALL	co_UserSetParent (HWND hWndChild, HWND hWndNewParent)
VOID FASTCALL	IntUnlinkWindow (PWND Wnd)
BOOL FASTCALL	IntGrowHwndList (PWINDOWLIST *ppwl)
PWINDOWLIST FASTCALL	IntPopulateHwndList (PWINDOWLIST pwl, PWND pwnd, DWORD dwFlags)
PWINDOWLIST FASTCALL	IntBuildHwndList (PWND pwnd, DWORD dwFlags, PTHREADINFO pti)
VOID FASTCALL	IntFreeHwndList (PWINDOWLIST pwlTarget)
NTSTATUS NTAPI	NtUserBuildHwndList (HDESK hDesktop, HWND hwndParent, BOOLEAN bChildren, ULONG dwThreadId, ULONG cHwnd, HWND *phwndList, ULONG *pcHwndNeeded)
static void	IntSendParentNotify (PWND pWindow, UINT msg)
void FASTCALL	IntFixWindowCoordinates (CREATESTRUCTW *Cs, PWND ParentWindow, DWORD *dwShowMode)
PWND FASTCALL	IntCreateWindow (CREATESTRUCTW *Cs, PLARGE_STRING WindowName, PCLS Class, PWND ParentWindow, PWND OwnerWindow, PVOID acbiBuffer, PDESKTOP pdeskCreated, DWORD dwVer)
PWND FASTCALL	co_UserCreateWindowEx (CREATESTRUCTW *Cs, PUNICODE_STRING ClassName, PLARGE_STRING WindowName, PVOID acbiBuffer, DWORD dwVer)
NTSTATUS NTAPI	ProbeAndCaptureLargeString (OUT PLARGE_STRING plstrSafe, IN PLARGE_STRING plstrUnsafe)
HWND NTAPI	NtUserCreateWindowEx (DWORD dwExStyle, PLARGE_STRING plstrClassName, PLARGE_STRING plstrClsVersion, PLARGE_STRING plstrWindowName, DWORD dwStyle, int x, int y, int nWidth, int nHeight, HWND hWndParent, HMENU hMenu, HINSTANCE hInstance, LPVOID lpParam, DWORD dwFlags, PVOID acbiBuffer)
VOID FASTCALL	IntDestroyOwnedWindows (PWND Window)
BOOLEAN	co_UserDestroyWindow (PVOID Object)
BOOLEAN APIENTRY	NtUserDestroyWindow (HWND Wnd)
HWND FASTCALL	IntFindWindow (PWND Parent, PWND ChildAfter, RTL_ATOM ClassAtom, PUNICODE_STRING WindowName)
HWND APIENTRY	NtUserFindWindowEx (HWND hwndParent, HWND hwndChildAfter, PUNICODE_STRING ucClassName, PUNICODE_STRING ucWindowName, DWORD dwUnknown)
PWND FASTCALL	UserGetAncestor (PWND Wnd, UINT Type)
HWND APIENTRY	NtUserGetAncestor (HWND hWnd, UINT Type)
BOOL APIENTRY	NtUserGetComboBoxInfo (HWND hWnd, PCOMBOBOXINFO pcbi)
DWORD APIENTRY	NtUserGetListBoxInfo (HWND hWnd)
HWND APIENTRY	NtUserSetParent (HWND hWndChild, HWND hWndNewParent)
HWND FASTCALL	UserGetShellWindow (VOID)
BOOL APIENTRY	NtUserSetShellWindowEx (HWND hwndShell, HWND hwndListView)
static BOOL FASTCALL	IntCheckFrameEdge (ULONG Style, ULONG ExStyle)
static LONG_PTR	co_IntSetWindowLongPtr (HWND hWnd, DWORD Index, LONG_PTR NewValue, BOOL Ansi, ULONG Size, BOOL bAlter)
LONG FASTCALL	co_UserSetWindowLong (HWND hWnd, DWORD Index, LONG NewValue, BOOL Ansi)
LONG_PTR FASTCALL	co_UserSetWindowLongPtr (HWND hWnd, DWORD Index, LONG_PTR NewValue, BOOL Ansi)
LONG APIENTRY	NtUserSetWindowLong (HWND hWnd, DWORD Index, LONG NewValue, BOOL Ansi)
DWORD APIENTRY	NtUserAlterWindowStyle (HWND hWnd, DWORD Index, LONG NewValue)
WORD APIENTRY	NtUserSetWindowWord (HWND hWnd, INT Index, WORD NewValue)
DWORD_PTR APIENTRY	NtUserQueryWindow (HWND hWnd, DWORD Index)
UINT APIENTRY	NtUserRegisterWindowMessage (PUNICODE_STRING MessageNameUnsafe)
BOOL APIENTRY	NtUserSetWindowFNID (HWND hWnd, WORD fnID)
BOOL APIENTRY	DefSetText (PWND Wnd, PCWSTR WindowText)
BOOL APIENTRY	NtUserDefSetText (HWND hWnd, PLARGE_STRING WindowText)
INT APIENTRY	NtUserInternalGetWindowText (HWND hWnd, LPWSTR lpString, INT nMaxCount)
BOOL FASTCALL	IntShowOwnedPopups (PWND OwnerWnd, BOOL fShow)

Variables
INT	gNestedWindowLimit = 50
PWINDOWLIST	gpwlList = NULL
PWINDOWLIST	gpwlCache = NULL

Macro Definition Documentation

CBF_BUTTONDOWN

#define CBF_BUTTONDOWN   0x0002

Definition at line 3465 of file window.c.

GROW_COUNT

#define GROW_COUNT   8

GWLP_CONSOLE_LEADER_PID

#define GWLP_CONSOLE_LEADER_PID   0

GWLP_CONSOLE_LEADER_TID

#define GWLP_CONSOLE_LEADER_TID   4

INITIAL_COUNT

#define INITIAL_COUNT   32

IS_DEFAULT

#define IS_DEFAULT

(

x

)

((x) == CW_USEDEFAULT || (x) == (SHORT)0x8000)

Typedef Documentation

LPHEADCOMBO

typedef struct HEADCOMBO* LPHEADCOMBO

PWND2CBOX

typedef struct _WND2CBOX * PWND2CBOX

PWND2LB

typedef struct _WND2LB * PWND2LB

WND2CBOX

typedef struct _WND2CBOX WND2CBOX

WND2LB

typedef struct _WND2LB WND2LB

Function Documentation

co_IntSetParent()

PWND FASTCALL co_IntSetParent	(	PWND	Wnd,
		PWND	WndNewParent
	)

Definition at line 1159 of file window.c.

{
   PWND WndOldParent, pWndExam;
   BOOL WasVisible;
   POINT pt;
   int swFlags = SWP_NOSIZE|SWP_NOZORDER;
 
   ASSERT(Wnd);
   ASSERT(WndNewParent);
   ASSERT_REFS_CO(Wnd);
   ASSERT_REFS_CO(WndNewParent);
 
   if (Wnd == Wnd->head.rpdesk->spwndMessage)
   {
      EngSetLastError(ERROR_ACCESS_DENIED);
      return NULL;
   }
 
   /* Some applications try to set a child as a parent */
   if (IntIsChildWindow(Wnd, WndNewParent))
   {
      TRACE("IntSetParent try to set a child as a parent.\n");
      EngSetLastError( ERROR_INVALID_PARAMETER );
      return NULL;
   }
 
   pWndExam = WndNewParent; // Load parent Window to examine.
   // Now test for set parent to parent hit.
   while (pWndExam)
   {
      if (Wnd == pWndExam)
      {
         TRACE("IntSetParent Failed Test for set parent to parent!\n");
         EngSetLastError(ERROR_INVALID_PARAMETER);
         return NULL;
      }
      pWndExam = pWndExam->spwndParent;
   }
 
   /*
    * Windows hides the window first, then shows it again
    * including the WM_SHOWWINDOW messages and all
    */
   WasVisible = co_WinPosShowWindow(Wnd, SW_HIDE);
 
   /* Window must belong to current process */
   if (Wnd->head.pti->ppi != PsGetCurrentProcessWin32Process())
   {
      ERR("IntSetParent Window must belong to current process!\n");
      return NULL;
   }
 
   WndOldParent = Wnd->spwndParent;
 
   if ( WndOldParent &&
        WndOldParent->ExStyle & WS_EX_LAYOUTRTL)
      pt.x = Wnd->rcWindow.right;
   else
      pt.x = Wnd->rcWindow.left;
   pt.y = Wnd->rcWindow.top;
 
   IntScreenToClient(WndOldParent, &pt);
 
   if (WndOldParent) UserReferenceObject(WndOldParent); /* Caller must deref */
 
   /* Even if WndNewParent == WndOldParent continue because the
    * child window (Wnd) should be moved to the top of the z-order */
 
   /* Unlink the window from the siblings list */
   IntUnlinkWindow(Wnd);
   Wnd->ExStyle2 &= ~WS_EX2_LINKED;
 
   /* Set the new parent */
   WndSetParent(Wnd, WndNewParent);
 
   if (Wnd->style & WS_CHILD &&
       Wnd->spwndOwner &&
       Wnd->spwndOwner->ExStyle & WS_EX_TOPMOST)
   {
      ERR("SetParent Top Most from Pop up\n");
      Wnd->ExStyle |= WS_EX_TOPMOST;
   }
 
   /* Link the window with its new siblings */
   IntLinkHwnd(Wnd,
               ((0 == (Wnd->ExStyle & WS_EX_TOPMOST) &&
               UserIsDesktopWindow(WndNewParent)) ? HWND_TOP : HWND_TOPMOST));
 
   if ( WndNewParent == co_GetDesktopWindow(Wnd) &&
       !(Wnd->style & WS_CLIPSIBLINGS) )
   {
      Wnd->style |= WS_CLIPSIBLINGS;
      DceResetActiveDCEs(Wnd);
   }
 
   /* if parent belongs to a different thread and the window isn't */
   /* top-level, attach the two threads */
   if ((Wnd->style & (WS_CHILD|WS_POPUP)) == WS_CHILD)
   {
      if ( Wnd->spwndParent != co_GetDesktopWindow(Wnd))
      {
         if (WndOldParent && (Wnd->head.pti != WndOldParent->head.pti))
         {
            //ERR("SetParent Old out.\n");
            UserAttachThreadInput(Wnd->head.pti, WndOldParent->head.pti, FALSE);
         }
      }
      if ( WndNewParent != co_GetDesktopWindow(Wnd))
      {
         if (Wnd->head.pti != WndNewParent->head.pti)
         {
            //ERR("SetParent New in.\n");
            UserAttachThreadInput(Wnd->head.pti, WndNewParent->head.pti, TRUE);
         }
      }
   }
 
   if (UserIsMessageWindow(WndOldParent) || UserIsMessageWindow(WndNewParent))
      swFlags |= SWP_NOACTIVATE;
 
   IntNotifyWinEvent(EVENT_OBJECT_PARENTCHANGE, Wnd ,OBJID_WINDOW, CHILDID_SELF, WEF_SETBYWNDPTI);
   /*
    * SetParent additionally needs to make hwnd the top window
    * in the z-order and send the expected WM_WINDOWPOSCHANGING and
    * WM_WINDOWPOSCHANGED notification messages.
    */
   //ERR("IntSetParent SetWindowPos 1\n");
   co_WinPosSetWindowPos( Wnd,
                         (0 == (Wnd->ExStyle & WS_EX_TOPMOST) ? HWND_TOP : HWND_TOPMOST),
                          pt.x, pt.y, 0, 0, swFlags);
   //ERR("IntSetParent SetWindowPos 2 X %d Y %d\n",pt.x, pt.y);
   if (WasVisible) co_WinPosShowWindow(Wnd, SW_SHOWNORMAL);
 
   return WndOldParent;
}

Referenced by co_UserSetParent().

co_IntSetWindowLongPtr()

static LONG_PTR co_IntSetWindowLongPtr ( HWND  hWnd, DWORD  Index, LONG_PTR  NewValue, BOOL  Ansi, ULONG  Size, BOOL  bAlter  )

static

Definition at line 3828 of file window.c.

{
   PWND Window, Parent;
   PWINSTATION_OBJECT WindowStation;
   LONG_PTR OldValue;
   STYLESTRUCT Style;
 
   if (!(Window = UserGetWindowObject(hWnd)))
   {
      return 0;
   }
 
   if ((INT)Index >= 0)
   {
      if ((Index + Size) > Window->cbwndExtra)
      {
         EngSetLastError(ERROR_INVALID_INDEX);
         return 0;
      }
 
      PVOID Address = (PUCHAR)(&Window[1]) + Index;
 
#ifdef _WIN64
      if (Size == sizeof(LONG))
      {
         OldValue = ReadUnalignedU32(Address);
         WriteUnalignedU32(Address, NewValue);
      }
      else
#endif
      {
         OldValue = ReadUnalignedUlongPtr(Address);
         /*
         if ( Index == DWLP_DLGPROC && Wnd->state & WNDS_DIALOGWINDOW)
         {
            OldValue = (LONG_PTR)IntSetWindowProc( Wnd, (WNDPROC)NewValue, Ansi);
            if (!OldValue) return 0;
         }
         */
         WriteUnalignedUlongPtr(Address, NewValue);
      }
 
   }
   else
   {
#ifdef _WIN64
      if (Size == sizeof(LONG))
      {
         if ((Index != GWL_STYLE) &&
             (Index != GWL_EXSTYLE) &&
             (Index != GWL_ID) &&
             (Index != GWL_USERDATA))
         {
            ERR("NtUserSetWindowLong(): Index requires pointer size: %lu\n", Index);
            EngSetLastError(ERROR_INVALID_INDEX);
            return 0;
         }
      }
#endif
 
      switch (Index)
      {
         case GWL_EXSTYLE: // LONG
            OldValue = (LONG) Window->ExStyle;
            Style.styleOld = OldValue;
            Style.styleNew = NewValue;
 
            co_IntSendMessage(hWnd, WM_STYLECHANGING, GWL_EXSTYLE, (LPARAM) &Style);
 
            /*
             * Remove extended window style bit WS_EX_TOPMOST for shell windows.
             */
            WindowStation = Window->head.pti->rpdesk->rpwinstaParent;
            if(WindowStation)
            {
               if (hWnd == WindowStation->ShellWindow || hWnd == WindowStation->ShellListView)
                  Style.styleNew &= ~WS_EX_TOPMOST;
            }
            /* WS_EX_WINDOWEDGE depends on some other styles */
            if (IntCheckFrameEdge(Window->style, NewValue))
               Style.styleNew |= WS_EX_WINDOWEDGE;
            else
               Style.styleNew &= ~WS_EX_WINDOWEDGE;
 
            if (!(Window->ExStyle & WS_EX_LAYERED))
            {
               SetLayeredStatus(Window, 0);
            }
 
            Window->ExStyle = (DWORD)Style.styleNew;
 
            co_IntSendMessage(hWnd, WM_STYLECHANGED, GWL_EXSTYLE, (LPARAM) &Style);
            break;
 
         case GWL_STYLE: // LONG
            OldValue = (LONG) Window->style;
            Style.styleOld = OldValue;
            Style.styleNew = NewValue;
 
            if (!bAlter)
                co_IntSendMessage(hWnd, WM_STYLECHANGING, GWL_STYLE, (LPARAM) &Style);
 
            /* WS_CLIPSIBLINGS can't be reset on top-level windows */
            if (UserIsDesktopWindow(Window->spwndParent)) Style.styleNew |= WS_CLIPSIBLINGS;
            /* WS_MINIMIZE can't be reset */
            if (OldValue & WS_MINIMIZE) Style.styleNew |= WS_MINIMIZE;
            /* Fixes wine FIXME: changing WS_DLGFRAME | WS_THICKFRAME is supposed to change WS_EX_WINDOWEDGE too */
            if (IntCheckFrameEdge(NewValue, Window->ExStyle))
               Window->ExStyle |= WS_EX_WINDOWEDGE;
            else
               Window->ExStyle &= ~WS_EX_WINDOWEDGE;
 
            if ((OldValue & (WS_CHILD | WS_POPUP)) == WS_CHILD)
            {
               if ((NewValue & (WS_CHILD | WS_POPUP)) != WS_CHILD)
               {
                  ERR("IDMenu going null! %d\n",Window->IDMenu);
                  Window->IDMenu = 0; // Window->spmenu = 0;
               }
            }
            else
            {
               if ((NewValue & (WS_CHILD | WS_POPUP)) == WS_CHILD)
               {
                  PMENU pMenu = UserGetMenuObject(UlongToHandle(Window->IDMenu));
                  Window->state &= ~WNDS_HASMENU;
                  if (pMenu)
                  {
                     ERR("IDMenu released 0x%p\n",pMenu);
                     // ROS may not hold a lock after setting menu to window. But it should!
                     //IntReleaseMenuObject(pMenu);
                  }
               }
            }
 
            if ((Style.styleOld ^ Style.styleNew) & WS_VISIBLE)
            {
               if (Style.styleOld & WS_VISIBLE) Window->head.pti->cVisWindows--;
               if (Style.styleNew & WS_VISIBLE) Window->head.pti->cVisWindows++;
               DceResetActiveDCEs( Window );
            }
            Window->style = (DWORD)Style.styleNew;
 
            if (!bAlter)
                co_IntSendMessage(hWnd, WM_STYLECHANGED, GWL_STYLE, (LPARAM) &Style);
            break;
 
         case GWLP_WNDPROC: // LONG_PTR
         {
            if ( Window->head.pti->ppi != PsGetCurrentProcessWin32Process() ||
                 Window->fnid & FNID_FREED)
            {
               EngSetLastError(ERROR_ACCESS_DENIED);
               return 0;
            }
            OldValue = (LONG_PTR)IntSetWindowProc(Window,
                                                  (WNDPROC)NewValue,
                                                  Ansi);
            break;
         }
 
         case GWLP_HINSTANCE: // LONG_PTR
            OldValue = (LONG_PTR) Window->hModule;
            Window->hModule = (HINSTANCE) NewValue;
            break;
 
         case GWLP_HWNDPARENT: // LONG_PTR
            Parent = Window->spwndParent;
            if (Parent && (UserHMGetHandle(Parent) == IntGetDesktopWindow()))
               OldValue = (LONG_PTR)IntSetOwner(UserHMGetHandle(Window), (HWND)NewValue);
            else
               OldValue = (LONG_PTR)co_UserSetParent(UserHMGetHandle(Window), (HWND)NewValue);
            break;
 
         case GWLP_ID: // LONG
            OldValue = (LONG) Window->IDMenu;
            Window->IDMenu = (UINT) NewValue;
            break;
 
         case GWLP_USERDATA: // LONG or LONG_PTR
            OldValue = Window->dwUserData;
            Window->dwUserData = NewValue;
            break;
 
         default:
            ERR("NtUserSetWindowLong(): Unsupported index %lu\n", Index);
            EngSetLastError(ERROR_INVALID_INDEX);
            OldValue = 0;
            break;
      }
   }
 
   return OldValue;
}

Referenced by co_UserSetWindowLong(), co_UserSetWindowLongPtr(), NtUserAlterWindowStyle(), and NtUserSetWindowLong().

co_UserCreateWindowEx()

PWND FASTCALL co_UserCreateWindowEx	(	CREATESTRUCTW *	Cs,
		PUNICODE_STRING	ClassName,
		PLARGE_STRING	WindowName,
		PVOID	acbiBuffer,
		DWORD	dwVer
	)

Definition at line 2176 of file window.c.

{
   ULONG style;
   PWND Window = NULL, ParentWindow = NULL, OwnerWindow;
   HWND hWnd, hWndParent, hWndOwner, hwndInsertAfter;
   PWINSTATION_OBJECT WinSta;
   PCLS Class = NULL;
   SIZE Size;
   POINT MaxSize, MaxPos, MinTrack, MaxTrack;
   CBT_CREATEWNDW * pCbtCreate;
   LRESULT Result;
   USER_REFERENCE_ENTRY ParentRef, Ref;
   PTHREADINFO pti;
   DWORD dwShowMode = SW_SHOW;
   CREATESTRUCTW *pCsw = NULL;
   PVOID pszClass = NULL, pszName = NULL;
   PWND ret = NULL;
 
   /* Get the current window station and reference it */
   pti = GetW32ThreadInfo();
   if (pti == NULL || pti->rpdesk == NULL)
   {
      ERR("Thread is not attached to a desktop! Cannot create window (%wZ)\n", ClassName);
      return NULL; // There is nothing to cleanup.
   }
   WinSta = pti->rpdesk->rpwinstaParent;
   ObReferenceObjectByPointer(WinSta, KernelMode, ExWindowStationObjectType, 0);
 
   pCsw = NULL;
   pCbtCreate = NULL;
 
   /* Get the class and reference it */
   Class = IntGetAndReferenceClass(ClassName, Cs->hInstance, FALSE);
   if(!Class)
   {
       EngSetLastError(ERROR_CANNOT_FIND_WND_CLASS);
       ERR("Failed to find class %wZ\n", ClassName);
       goto cleanup;
   }
 
   /* Now find the parent and the owner window */
   hWndParent = UserHMGetHandle(pti->rpdesk->pDeskInfo->spwnd);
   hWndOwner = NULL;
 
    if (Cs->hwndParent == HWND_MESSAGE)
    {
        Cs->hwndParent = hWndParent = UserHMGetHandle(pti->rpdesk->spwndMessage);
    }
    else if (Cs->hwndParent)
    {
        if ((Cs->style & (WS_CHILD|WS_POPUP)) != WS_CHILD)
            hWndOwner = Cs->hwndParent;
        else
            hWndParent = Cs->hwndParent;
    }
    else if ((Cs->style & (WS_CHILD|WS_POPUP)) == WS_CHILD)
    {
         ERR("Cannot create a child window (%wZ) without a parent\n", ClassName);
         EngSetLastError(ERROR_TLW_WITH_WSCHILD);
         goto cleanup;  /* WS_CHILD needs a parent, but WS_POPUP doesn't */
    }
    else if (Cs->lpszClass != (LPCWSTR)MAKEINTATOM(gpsi->atomSysClass[ICLS_DESKTOP]) &&
             (IS_INTRESOURCE(Cs->lpszClass) ||
              Cs->lpszClass != (LPCWSTR)MAKEINTATOM(gpsi->atomSysClass[ICLS_HWNDMESSAGE]) ||
              _wcsicmp(Cs->lpszClass, L"Message") != 0))
    {
        if (pti->ppi->dwLayout & LAYOUT_RTL)
        {
            Cs->dwExStyle |= WS_EX_LAYOUTRTL;
        }
    }
 
    ParentWindow = hWndParent ? UserGetWindowObject(hWndParent): NULL;
    OwnerWindow = hWndOwner ? UserGetWindowObject(hWndOwner): NULL;
 
    if (hWndParent && !ParentWindow)
    {
        ERR("Got invalid parent window handle for %wZ\n", ClassName);
        goto cleanup;
    }
    else if (hWndOwner && !OwnerWindow)
    {
        ERR("Got invalid owner window handle for %wZ\n", ClassName);
        ParentWindow = NULL;
        goto cleanup;
    }
 
    if(OwnerWindow)
    {
       if (IntIsDesktopWindow(OwnerWindow)) OwnerWindow = NULL;
       else if (ParentWindow && !IntIsDesktopWindow(ParentWindow))
       {
          ERR("an owned window must be created as top-level\n");
          EngSetLastError( STATUS_ACCESS_DENIED );
          goto cleanup;
       }
       else /* owner must be a top-level window */
       {
          while ((OwnerWindow->style & (WS_POPUP|WS_CHILD)) == WS_CHILD && !IntIsDesktopWindow(OwnerWindow->spwndParent))
                 OwnerWindow = OwnerWindow->spwndParent;
       }
    }
 
   /* Fix the position and the size of the window */
   if (ParentWindow)
   {
       UserRefObjectCo(ParentWindow, &ParentRef);
       IntFixWindowCoordinates(Cs, ParentWindow, &dwShowMode);
   }
 
   /* Allocate and initialize the new window */
   Window = IntCreateWindow(Cs,
                            WindowName,
                            Class,
                            ParentWindow,
                            OwnerWindow,
                            acbiBuffer,
                            NULL,
                            dwVer );
   if(!Window)
   {
       ERR("IntCreateWindow(%wZ) failed\n", ClassName);
       goto cleanup;
   }
 
   hWnd = UserHMGetHandle(Window);
   hwndInsertAfter = HWND_TOP;
 
   UserRefObjectCo(Window, &Ref);
   UserDereferenceObject(Window);
   ObDereferenceObject(WinSta);
 
   /* NCCREATE, WM_NCCALCSIZE and Hooks need the original values */
   Cs->lpszName = (LPCWSTR) WindowName;
   Cs->lpszClass = (LPCWSTR) ClassName;
 
   if ( ISITHOOKED(WH_CBT) ||  (pti->rpdesk->pDeskInfo->fsHooks & HOOKID_TO_FLAG(WH_CBT)) )
   {
      // Allocate the calling structures Justin Case this goes Global.
      pCsw = ExAllocatePoolWithTag(NonPagedPool, sizeof(CREATESTRUCTW), TAG_HOOK);
      pCbtCreate = ExAllocatePoolWithTag(NonPagedPool, sizeof(CBT_CREATEWNDW), TAG_HOOK);
      if (!pCsw || !pCbtCreate)
      {
         ERR("UserHeapAlloc() failed!\n");
         goto cleanup;
      }
 
      if (!IntMsgCreateStructW( Window, pCsw, Cs, &pszClass, &pszName ) )
      {
          ERR("IntMsgCreateStructW() failed!\n");
          goto cleanup;
      }
 
      pCbtCreate->lpcs = pCsw;
      pCbtCreate->hwndInsertAfter = hwndInsertAfter;
 
      Result = co_HOOK_CallHooks(WH_CBT, HCBT_CREATEWND, (WPARAM) hWnd, (LPARAM) pCbtCreate);
      if (Result != 0)
      {
         ERR("WH_CBT HCBT_CREATEWND hook failed! 0x%x\n", Result);
         goto cleanup;
      }
      // Write back changes.
      Cs->cx = pCsw->cx;
      Cs->cy = pCsw->cy;
      Cs->x = pCsw->x;
      Cs->y = pCsw->y;
      hwndInsertAfter = pCbtCreate->hwndInsertAfter;
   }
 
   if ((Cs->style & (WS_CHILD|WS_POPUP)) == WS_CHILD)
   {
      if (ParentWindow != co_GetDesktopWindow(Window))
      {
         Cs->x += ParentWindow->rcClient.left;
         Cs->y += ParentWindow->rcClient.top;
      }
   }
 
   /* Send the WM_GETMINMAXINFO message */
   Size.cx = Cs->cx;
   Size.cy = Cs->cy;
 
   if ((Cs->style & WS_THICKFRAME) || !(Cs->style & (WS_POPUP | WS_CHILD)))
   {
      co_WinPosGetMinMaxInfo(Window, &MaxSize, &MaxPos, &MinTrack, &MaxTrack);
      if (Size.cx > MaxTrack.x) Size.cx = MaxTrack.x;
      if (Size.cy > MaxTrack.y) Size.cy = MaxTrack.y;
      if (Size.cx < MinTrack.x) Size.cx = MinTrack.x;
      if (Size.cy < MinTrack.y) Size.cy = MinTrack.y;
   }
 
   Window->rcWindow.left = Cs->x;
   Window->rcWindow.top = Cs->y;
   Window->rcWindow.right = Cs->x + Size.cx;
   Window->rcWindow.bottom = Cs->y + Size.cy;
 /*
   if (0 != (Window->style & WS_CHILD) && ParentWindow)
   {
      ERR("co_UserCreateWindowEx(): Offset rcWindow\n");
      RECTL_vOffsetRect(&Window->rcWindow,
                        ParentWindow->rcClient.left,
                        ParentWindow->rcClient.top);
   }
 */
   /* correct child window coordinates if mirroring on parent is enabled */
   if (ParentWindow != NULL)
   {
      if ( ((Cs->style & WS_CHILD) == WS_CHILD) &&
          ((ParentWindow->ExStyle & WS_EX_LAYOUTRTL) ==  WS_EX_LAYOUTRTL))
      {
          Window->rcWindow.right = ParentWindow->rcClient.right - (Window->rcWindow.left - ParentWindow->rcClient.left);
          Window->rcWindow.left = Window->rcWindow.right - Size.cx;
      }
   }
 
   Window->rcClient = Window->rcWindow;
 
   if (Window->spwndNext || Window->spwndPrev)
   {
      ERR("Window 0x%p has been linked too early!\n", Window);
   }
 
   if (!(Window->state2 & WNDS2_WIN31COMPAT))
   {
      if (Class->style & CS_PARENTDC && !(ParentWindow->style & WS_CLIPCHILDREN))
         Window->style &= ~(WS_CLIPSIBLINGS | WS_CLIPCHILDREN);
   }
 
   if ((Window->style & (WS_CHILD | WS_POPUP)) == WS_CHILD)
   {
      if ( !IntIsTopLevelWindow(Window) )
      {
         if (pti != ParentWindow->head.pti)
         {
            //ERR("CreateWindow Parent in.\n");
            UserAttachThreadInput(pti, ParentWindow->head.pti, TRUE);
         }
      }
   }
 
   /* Send the NCCREATE message */
   Result = co_IntSendMessage(UserHMGetHandle(Window), WM_NCCREATE, 0, (LPARAM) Cs);
   if (!Result)
   {
      ERR("co_UserCreateWindowEx(%wZ): NCCREATE message failed\n", ClassName);
      goto cleanup;
   }
 
   /* Link the window */
   if (ParentWindow != NULL)
   {
      /* Link the window into the siblings list */
      if ((Cs->style & (WS_CHILD | WS_MAXIMIZE)) == WS_CHILD)
          IntLinkHwnd(Window, HWND_BOTTOM);
      else
          IntLinkHwnd(Window, hwndInsertAfter);
   }
 
   /* Create the IME window for pWnd */
   if (IS_IMM_MODE() && !pti->spwndDefaultIme && IntWantImeWindow(Window))
   {
      PWND pwndDefaultIme = co_IntCreateDefaultImeWindow(Window, Window->hModule);
      UserAssignmentLock((PVOID*)&pti->spwndDefaultIme, pwndDefaultIme);
 
      if (pwndDefaultIme)
      {
         HWND hImeWnd;
         USER_REFERENCE_ENTRY Ref;
         UserRefObjectCo(pwndDefaultIme, &Ref);
 
         hImeWnd = UserHMGetHandle(pwndDefaultIme);
 
         co_IntSendMessage(hImeWnd, WM_IME_SYSTEM, IMS_LOADTHREADLAYOUT, 0);
 
         if (pti->pClientInfo->CI_flags & CI_IMMACTIVATE)
         {
            HKL hKL = pti->KeyboardLayout->hkl;
            co_IntSendMessage(hImeWnd, WM_IME_SYSTEM, IMS_ACTIVATELAYOUT, (LPARAM)hKL);
            pti->pClientInfo->CI_flags &= ~CI_IMMACTIVATE;
         }
 
         UserDerefObjectCo(pwndDefaultIme);
      }
   }
 
   /* Send the WM_NCCALCSIZE message */
   {
  // RECT rc;
   MaxPos.x = Window->rcWindow.left;
   MaxPos.y = Window->rcWindow.top;
 
   Result = co_WinPosGetNonClientSize(Window, &Window->rcWindow, &Window->rcClient);
   //rc = Window->rcWindow;
   //Result = co_IntSendMessageNoWait(UserHMGetHandle(Window), WM_NCCALCSIZE, FALSE, (LPARAM)&rc);
   //Window->rcClient = rc;
 
   RECTL_vOffsetRect(&Window->rcWindow, MaxPos.x - Window->rcWindow.left,
                                     MaxPos.y - Window->rcWindow.top);
   }
 
   /* Send the WM_CREATE message. */
   Result = co_IntSendMessage(UserHMGetHandle(Window), WM_CREATE, 0, (LPARAM) Cs);
   if (Result == (LRESULT)-1)
   {
      ERR("co_UserCreateWindowEx(%wZ): WM_CREATE message failed\n", ClassName);
      goto cleanup;
   }
 
   /* Send the EVENT_OBJECT_CREATE event */
   IntNotifyWinEvent(EVENT_OBJECT_CREATE, Window, OBJID_WINDOW, CHILDID_SELF, 0);
 
   /* By setting the flag below it can be examined to determine if the window
      was created successfully and a valid pwnd was passed back to caller since
      from here the function has to succeed. */
   Window->state2 |= WNDS2_WMCREATEMSGPROCESSED;
 
   /* Send the WM_SIZE and WM_MOVE messages. */
   if (!(Window->state & WNDS_SENDSIZEMOVEMSGS))
   {
        co_WinPosSendSizeMove(Window);
   }
 
   /* Show or maybe minimize or maximize the window. */
 
   style = IntSetStyle( Window, 0, WS_MAXIMIZE | WS_MINIMIZE );
   if (style & (WS_MINIMIZE | WS_MAXIMIZE))
   {
      RECTL NewPos;
      UINT SwFlag = (style & WS_MINIMIZE) ? SW_MINIMIZE : SW_MAXIMIZE;
 
      SwFlag = co_WinPosMinMaximize(Window, SwFlag, &NewPos);
      SwFlag |= SWP_NOZORDER|SWP_FRAMECHANGED; /* Frame always gets changed */
      if (!(style & WS_VISIBLE) || (style & WS_CHILD) || UserGetActiveWindow() ||
          (Window->ExStyle & WS_EX_NOACTIVATE))
      {
         SwFlag |= SWP_NOACTIVATE;
      }
      co_WinPosSetWindowPos(Window, 0, NewPos.left, NewPos.top,
                            NewPos.right, NewPos.bottom, SwFlag);
   }
 
   /* Send the WM_PARENTNOTIFY message */
   IntSendParentNotify(Window, WM_CREATE);
 
   /* Notify the shell that a new window was created */
   if (Window->spwndOwner == NULL ||
       !(Window->spwndOwner->style & WS_VISIBLE) ||
       (Window->spwndOwner->ExStyle & WS_EX_TOOLWINDOW))
   {
      if (UserIsDesktopWindow(Window->spwndParent) &&
          (Window->style & WS_VISIBLE) &&
          (!(Window->ExStyle & WS_EX_TOOLWINDOW) ||
           (Window->ExStyle & WS_EX_APPWINDOW)))
      {
         co_IntShellHookNotify(HSHELL_WINDOWCREATED, (WPARAM)hWnd, 0);
      }
   }
 
   /* Initialize and show the window's scrollbars */
   if (Window->style & WS_VSCROLL)
   {
      co_UserShowScrollBar(Window, SB_VERT, FALSE, TRUE);
   }
   if (Window->style & WS_HSCROLL)
   {
      co_UserShowScrollBar(Window, SB_HORZ, TRUE, FALSE);
   }
 
   /* Show the new window */
   if (Cs->style & WS_VISIBLE)
   {
      if (Window->style & WS_MAXIMIZE)
         dwShowMode = SW_SHOW;
      else if (Window->style & WS_MINIMIZE)
         dwShowMode = SW_SHOWMINIMIZED;
 
      co_WinPosShowWindow(Window, dwShowMode);
 
      if (Window->ExStyle & WS_EX_MDICHILD)
      {
          ASSERT(ParentWindow);
          if(!ParentWindow)
              goto cleanup;
        co_IntSendMessage(UserHMGetHandle(ParentWindow), WM_MDIREFRESHMENU, 0, 0);
        /* ShowWindow won't activate child windows */
        co_WinPosSetWindowPos(Window, HWND_TOP, 0, 0, 0, 0, SWP_SHOWWINDOW | SWP_NOMOVE | SWP_NOSIZE);
      }
   }
 
   if (Class->atomClassName == gaGuiConsoleWndClass)
   {
       /* Count only console windows manually */
       co_IntUserManualGuiCheck(TRUE);
   }
 
   TRACE("co_UserCreateWindowEx(%wZ): Created window %p\n", ClassName, hWnd);
   ret = Window;
 
cleanup:
   if (!ret)
   {
       TRACE("co_UserCreateWindowEx(): Error Created window!\n");
       /* If the window was created, the class will be dereferenced by co_UserDestroyWindow */
       if (Window)
            co_UserDestroyWindow(Window);
       else if (Class)
           IntDereferenceClass(Class, pti->pDeskInfo, pti->ppi);
   }
 
   if (pCsw) ExFreePoolWithTag(pCsw, TAG_HOOK);
   if (pCbtCreate) ExFreePoolWithTag(pCbtCreate, TAG_HOOK);
   if (pszName) UserHeapFree(pszName);
   if (pszClass) UserHeapFree(pszClass);
 
   if (Window)
   {
      UserDerefObjectCo(Window);
   }
   if (ParentWindow) UserDerefObjectCo(ParentWindow);
 
   // See CORE-13717, not setting error on success.
   if (ret)
      EngSetLastError(ERROR_SUCCESS);
 
   return ret;
}

Referenced by co_IntCreateDefaultImeWindow(), MENU_InitPopup(), and NtUserCreateWindowEx().

co_UserDestroyWindow()

BOOLEAN co_UserDestroyWindow

(

PVOID

Object

)

Definition at line 2856 of file window.c.

{
   HWND hWnd;
   PWND pwndTemp;
   PTHREADINFO ti;
   MSG msg;
   PWND Window = Object;
 
   ASSERT_REFS_CO(Window); // FIXME: Temp HACK?
 
   /* NtUserDestroyWindow does check if the window has already been destroyed
      but co_UserDestroyWindow can be called from more paths which means
      that it can also be called for a window that has already been destroyed. */
   if (!IntIsWindow(UserHMGetHandle(Window)))
   {
      TRACE("Tried to destroy a window twice\n");
      return TRUE;
   }
 
   hWnd = UserHMGetHandle(Window);
   ti = PsGetCurrentThreadWin32Thread();
 
   TRACE("co_UserDestroyWindow(Window = 0x%p, hWnd = 0x%p)\n", Window, hWnd);
 
   /* Check for owner thread */
   if (Window->head.pti != ti)
   {
       /* Check if we are destroying the desktop window */
       if (! ((Window->head.rpdesk->dwDTFlags & DF_DESTROYED) && Window == Window->head.rpdesk->pDeskInfo->spwnd))
       {
           EngSetLastError(ERROR_ACCESS_DENIED);
           return FALSE;
       }
   }
 
   /* If window was created successfully and it is hooked */
   if ((Window->state2 & WNDS2_WMCREATEMSGPROCESSED))
   {
      if (co_HOOK_CallHooks(WH_CBT, HCBT_DESTROYWND, (WPARAM) hWnd, 0))
      {
         ERR("Destroy Window WH_CBT Call Hook return!\n");
         return FALSE;
      }
   }
 
   if (Window->pcls->atomClassName != gpsi->atomSysClass[ICLS_IME])
   {
      if ((Window->style & (WS_POPUP|WS_CHILD)) != WS_CHILD)
      {
         if (Window->spwndOwner)
         {
            //ERR("DestroyWindow Owner out.\n");
            UserAttachThreadInput(Window->head.pti, Window->spwndOwner->head.pti, FALSE);
         }
      }
   }
 
   /* Inform the parent */
   if (Window->style & WS_CHILD)
   {
      IntSendParentNotify(Window, WM_DESTROY);
   }
 
   if (!Window->spwndOwner && !IntGetParent(Window))
   {
      co_IntShellHookNotify(HSHELL_WINDOWDESTROYED, (WPARAM) hWnd, 0);
   }
 
   /* Hide the window */
   if (Window->style & WS_VISIBLE)
   {
      if (Window->style & WS_CHILD)
      {
         /* Only child windows receive WM_SHOWWINDOW in DestroyWindow() */
         co_WinPosShowWindow(Window, SW_HIDE);
      }
      else
      {
         co_WinPosSetWindowPos(Window, 0, 0, 0, 0, 0, SWP_NOMOVE|SWP_NOSIZE|SWP_NOZORDER|SWP_NOACTIVATE|SWP_HIDEWINDOW );
      }
   }
 
   /* Adjust last active */
   if ((pwndTemp = Window->spwndOwner))
   {
      while (pwndTemp->spwndOwner)
         pwndTemp = pwndTemp->spwndOwner;
 
      if (pwndTemp->spwndLastActive == Window)
         WndSetLastActive(pwndTemp, Window->spwndOwner);
   }
 
   if (Window->spwndParent && IntIsWindow(UserHMGetHandle(Window)))
   {
      if ((Window->style & (WS_POPUP | WS_CHILD)) == WS_CHILD)
      {
         if (!IntIsTopLevelWindow(Window))
         {
            //ERR("DestroyWindow Parent out.\n");
            UserAttachThreadInput(Window->head.pti, Window->spwndParent->head.pti, FALSE);
         }
      }
   }
 
   if (Window->head.pti->MessageQueue->spwndActive == Window)
      Window->head.pti->MessageQueue->spwndActive = NULL;
   if (Window->head.pti->MessageQueue->spwndFocus == Window)
      Window->head.pti->MessageQueue->spwndFocus = NULL;
   if (Window->head.pti->MessageQueue->spwndActivePrev == Window)
      Window->head.pti->MessageQueue->spwndActivePrev = NULL;
   if (Window->head.pti->MessageQueue->spwndCapture == Window)
      Window->head.pti->MessageQueue->spwndCapture = NULL;
 
   /*
    * Check if this window is the Shell's Desktop Window. If so set hShellWindow to NULL
    */
 
   if (ti->pDeskInfo != NULL)
   {
      if (ti->pDeskInfo->hShellWindow == hWnd)
      {
         ERR("Destroying the ShellWindow!\n");
         ti->pDeskInfo->hShellWindow = NULL;
      }
   }
 
   IntEngWindowChanged(Window, WOC_DELETE);
 
   if (!IntIsWindow(UserHMGetHandle(Window)))
   {
      return TRUE;
   }
 
    /* Recursively destroy owned windows */
    if (!(Window->style & WS_CHILD))
    {
        IntDestroyOwnedWindows(Window);
    }
 
    /* Generate mouse move message for the next window */
    msg.message = WM_MOUSEMOVE;
    msg.wParam = UserGetMouseButtonsState();
    msg.lParam = MAKELPARAM(gpsi->ptCursor.x, gpsi->ptCursor.y);
    msg.pt = gpsi->ptCursor;
    co_MsqInsertMouseMessage(&msg, 0, 0, TRUE);
 
   IntNotifyWinEvent(EVENT_OBJECT_DESTROY, Window, OBJID_WINDOW, CHILDID_SELF, 0);
 
   /* Send destroy messages */
   IntSendDestroyMsg(UserHMGetHandle(Window));
 
   /* Destroy the default IME window if necessary */
   if (IS_IMM_MODE() && !(ti->TIF_flags & TIF_INCLEANUP) &&
       ti->spwndDefaultIme && (ti->spwndDefaultIme != Window) &&
       !(Window->state & WNDS_DESTROYED) && !IS_WND_IMELIKE(Window))
   {
       if (IS_WND_CHILD(Window))
       {
           if (IntImeCanDestroyDefIMEforChild(ti->spwndDefaultIme, Window))
               co_UserDestroyWindow(ti->spwndDefaultIme);
       }
       else
       {
           if (IntImeCanDestroyDefIME(ti->spwndDefaultIme, Window))
               co_UserDestroyWindow(ti->spwndDefaultIme);
       }
   }
 
   if (!IntIsWindow(UserHMGetHandle(Window)))
   {
      return TRUE;
   }
 
   /* Destroy the window storage */
   co_UserFreeWindow(Window, PsGetCurrentProcessWin32Process(), PsGetCurrentThreadWin32Thread(), TRUE);
 
   return TRUE;
}

Referenced by co_UserCreateWindowEx(), co_UserDestroyWindow(), handle_internal_message(), IntDefWindowProc(), IntDesktopObjectDelete(), IntDestroyOwnedWindows(), IntTrackPopupMenuEx(), MENU_HideSubPopups(), MENU_TrackMenu(), NtUserDestroyWindow(), and NtUserDisableThreadIme().

co_UserFreeWindow()

LRESULT co_UserFreeWindow	(	PWND	Window,
		PPROCESSINFO	ProcessData,
		PTHREADINFO	ThreadData,
		BOOLEAN	SendMessages
	)

Definition at line 576 of file window.c.

{
   HWND *Children;
   HWND *ChildHandle;
   PWND Child;
   PMENU Menu;
   BOOLEAN BelongsToThreadData;
   USER_REFERENCE_ENTRY Ref;
 
   ASSERT(Window);
 
   if(Window->state2 & WNDS2_INDESTROY)
   {
      TRACE("Tried to call co_UserFreeWindow() twice\n");
      return 0;
   }
   Window->state2 |= WNDS2_INDESTROY;
   Window->style &= ~WS_VISIBLE;
   Window->head.pti->cVisWindows--;
 
   /* remove the window already at this point from the thread window list so we
      don't get into trouble when destroying the thread windows while we're still
      in co_UserFreeWindow() */
   if (!IsListEmpty(&Window->ThreadListEntry))
       RemoveEntryList(&Window->ThreadListEntry);
 
   BelongsToThreadData = IntWndBelongsToThread(Window, ThreadData);
 
   IntDeRegisterShellHookWindow(UserHMGetHandle(Window));
 
   /* free child windows */
   Children = IntWinListChildren(Window);
   if (Children)
   {
      for (ChildHandle = Children; *ChildHandle; ++ChildHandle)
      {
         if ((Child = IntGetWindowObject(*ChildHandle)))
         {
            if (!IntWndBelongsToThread(Child, ThreadData))
            {
               /* send WM_DESTROY messages to windows not belonging to the same thread */
               co_IntSendMessage( UserHMGetHandle(Child), WM_ASYNC_DESTROYWINDOW, 0, 0 );
            }
            else
               co_UserFreeWindow(Child, ProcessData, ThreadData, SendMessages);
 
            UserDereferenceObject(Child);
         }
      }
      ExFreePoolWithTag(Children, USERTAG_WINDOWLIST);
   }
 
   if (SendMessages)
   {
      /*
       * Clear the update region to make sure no WM_PAINT messages will be
       * generated for this window while processing the WM_NCDESTROY.
       */
      co_UserRedrawWindow(Window, NULL, 0,
                          RDW_VALIDATE | RDW_NOFRAME | RDW_NOERASE |
                          RDW_NOINTERNALPAINT | RDW_NOCHILDREN);
      if (BelongsToThreadData)
         co_IntSendMessage(UserHMGetHandle(Window), WM_NCDESTROY, 0, 0);
   }
 
   UserClipboardFreeWindow(Window);
 
   DestroyTimersForWindow(ThreadData, Window);
 
   /* Unregister hot keys */
   UnregisterWindowHotKeys(Window);
 
   /* flush the message queue */
   MsqRemoveWindowMessagesFromQueue(Window);
 
   /* from now on no messages can be sent to this window anymore */
   Window->state |= WNDS_DESTROYED;
   Window->fnid |= FNID_FREED;
 
   /* don't remove the WINDOWSTATUS_DESTROYING bit */
 
   /* reset shell window handles */
   if (ThreadData->rpdesk)
   {
      if (UserHMGetHandle(Window) == ThreadData->rpdesk->rpwinstaParent->ShellWindow)
         ThreadData->rpdesk->rpwinstaParent->ShellWindow = NULL;
 
      if (UserHMGetHandle(Window) == ThreadData->rpdesk->rpwinstaParent->ShellListView)
         ThreadData->rpdesk->rpwinstaParent->ShellListView = NULL;
   }
 
   if (ThreadData->spwndDefaultIme &&
       ThreadData->spwndDefaultIme->spwndOwner == Window)
   {
      WndSetOwner(ThreadData->spwndDefaultIme, NULL);
   }
 
   if (IS_IMM_MODE() && Window == ThreadData->spwndDefaultIme)
   {
      UserAssignmentUnlock((PVOID*)&(ThreadData->spwndDefaultIme));
   }
 
   /* Fixes dialog test_focus breakage due to r66237. */
   if (ThreadData->MessageQueue->spwndFocus == Window)
      ThreadData->MessageQueue->spwndFocus = NULL;
 
   if (ThreadData->MessageQueue->spwndActive == Window)
      ThreadData->MessageQueue->spwndActive = NULL;
 
   if (ThreadData->MessageQueue->spwndCapture == Window)
   {
      IntReleaseCapture();
   }
 
   if ( Window->hrgnUpdate != NULL || Window->state & WNDS_INTERNALPAINT )
   {
      MsqDecPaintCountQueue(Window->head.pti);
      if (Window->hrgnUpdate > HRGN_WINDOW && GreIsHandleValid(Window->hrgnUpdate))
      {
         IntGdiSetRegionOwner(Window->hrgnUpdate, GDI_OBJ_HMGR_POWNED);
         GreDeleteObject(Window->hrgnUpdate);
      }
      Window->hrgnUpdate = NULL;
      Window->state &= ~WNDS_INTERNALPAINT;
   }
 
   if (Window->state & (WNDS_SENDERASEBACKGROUND|WNDS_SENDNCPAINT))
   {
      Window->state &= ~(WNDS_SENDERASEBACKGROUND|WNDS_SENDNCPAINT);
   }
 
   if ( ((Window->style & (WS_CHILD|WS_POPUP)) != WS_CHILD) &&
        Window->IDMenu &&
        (Menu = UserGetMenuObject((HMENU)Window->IDMenu)))
   {
      TRACE("UFW: IDMenu %p\n",Window->IDMenu);
      IntDestroyMenuObject(Menu, TRUE);
      Window->IDMenu = 0;
   }
 
   if (Window->SystemMenu
        && (Menu = UserGetMenuObject(Window->SystemMenu)))
   {
      IntDestroyMenuObject(Menu, TRUE);
      Window->SystemMenu = (HMENU)0;
   }
 
   DceFreeWindowDCE(Window);    /* Always do this to catch orphaned DCs */
 
   IntUnlinkWindow(Window);
 
   if (Window->PropListItems)
   {
      UserRemoveWindowProps(Window);
      TRACE("Window->PropListItems %lu\n",Window->PropListItems);
      ASSERT(Window->PropListItems==0);
   }
 
   /* Kill any reference to linked windows. Prev & Next are taken care of in IntUnlinkWindow */
   WndSetOwner(Window, NULL);
   WndSetParent(Window, NULL);
   WndSetChild(Window, NULL);
   WndSetLastActive(Window, NULL);
 
   UserRefObjectCo(Window, &Ref);
   UserMarkObjectDestroy(Window);
 
   IntDestroyScrollBars(Window);
 
   if (Window->pcls->atomClassName == gaGuiConsoleWndClass)
   {
       /* Count only console windows manually */
       co_IntUserManualGuiCheck(FALSE);
   }
 
   /* dereference the class */
   NT_ASSERT(Window->head.pti != NULL);
   IntDereferenceClass(Window->pcls,
                       Window->head.pti->pDeskInfo,
                       Window->head.pti->ppi);
   Window->pcls = NULL;
 
   if (Window->hrgnClip)
   {
      IntGdiSetRegionOwner(Window->hrgnClip, GDI_OBJ_HMGR_POWNED);
      GreDeleteObject(Window->hrgnClip);
      Window->hrgnClip = NULL;
   }
   Window->head.pti->cWindows--;
 
//   ASSERT(Window != NULL);
   UserFreeWindowInfo(Window->head.pti, Window);
 
   UserDerefObjectCo(Window);
   UserDeleteObject(UserHMGetHandle(Window), TYPE_WINDOW);
 
   return 0;
}

Referenced by co_UserDestroyWindow(), co_UserFreeWindow(), and handle_internal_message().

co_UserSetParent()

HWND FASTCALL co_UserSetParent	(	HWND	hWndChild,
		HWND	hWndNewParent
	)

Definition at line 1297 of file window.c.

{
   PWND Wnd = NULL, WndParent = NULL, WndOldParent;
   HWND hWndOldParent = NULL;
   USER_REFERENCE_ENTRY Ref, ParentRef;
 
   if (IntIsBroadcastHwnd(hWndChild) || IntIsBroadcastHwnd(hWndNewParent))
   {
      EngSetLastError(ERROR_INVALID_PARAMETER);
      return NULL;
   }
 
   if (hWndChild == IntGetDesktopWindow())
   {
      ERR("UserSetParent Access Denied!\n");
      EngSetLastError(ERROR_ACCESS_DENIED);
      return NULL;
   }
 
   if (hWndNewParent)
   {
      if (!(WndParent = UserGetWindowObject(hWndNewParent)))
      {
         ERR("UserSetParent Bad New Parent!\n");
         return NULL;
      }
   }
   else
   {
      if (!(WndParent = UserGetWindowObject(IntGetDesktopWindow())))
      {
         return NULL;
      }
   }
 
   if (!(Wnd = UserGetWindowObject(hWndChild)))
   {
      ERR("UserSetParent Bad Child!\n");
      return NULL;
   }
 
   UserRefObjectCo(Wnd, &Ref);
   UserRefObjectCo(WndParent, &ParentRef);
   //ERR("Enter co_IntSetParent\n");
   WndOldParent = co_IntSetParent(Wnd, WndParent);
   //ERR("Leave co_IntSetParent\n");
   UserDerefObjectCo(WndParent);
   UserDerefObjectCo(Wnd);
 
   if (WndOldParent)
   {
      hWndOldParent = UserHMGetHandle(WndOldParent);
      UserDereferenceObject(WndOldParent);
   }
 
   return hWndOldParent;
}

Referenced by co_IntSetWindowLongPtr(), and NtUserSetParent().

co_UserSetWindowLong()

LONG FASTCALL co_UserSetWindowLong	(	HWND	hWnd,
		DWORD	Index,
		LONG	NewValue,
		BOOL	Ansi
	)

Definition at line 4025 of file window.c.

{
    return (LONG)co_IntSetWindowLongPtr(hWnd, Index, NewValue, Ansi, sizeof(LONG), FALSE);
}

Referenced by DesktopWindowProc(), and NtUserSetWindowWord().

co_UserSetWindowLongPtr()

LONG_PTR FASTCALL co_UserSetWindowLongPtr	(	HWND	hWnd,
		DWORD	Index,
		LONG_PTR	NewValue,
		BOOL	Ansi
	)

Definition at line 4031 of file window.c.

{
    return co_IntSetWindowLongPtr(hWnd, Index, NewValue, Ansi, sizeof(LONG_PTR), FALSE);
}

DBG_DEFAULT_CHANNEL()

DBG_DEFAULT_CHANNEL

(

UserWnd

)

DefSetText()

BOOL APIENTRY DefSetText	(	PWND	Wnd,
		PCWSTR	WindowText
	)

Definition at line 4377 of file window.c.

{
   UNICODE_STRING UnicodeString;
   BOOL Ret = FALSE;
 
   RtlInitUnicodeString(&UnicodeString, WindowText);
 
   if (UnicodeString.Length != 0)
   {
      if (Wnd->strName.MaximumLength > 0 &&
          UnicodeString.Length <= Wnd->strName.MaximumLength - sizeof(UNICODE_NULL))
      {
         ASSERT(Wnd->strName.Buffer != NULL);
 
         Wnd->strName.Length = UnicodeString.Length;
         Wnd->strName.Buffer[UnicodeString.Length / sizeof(WCHAR)] = L'\0';
         RtlCopyMemory(Wnd->strName.Buffer,
                              UnicodeString.Buffer,
                              UnicodeString.Length);
      }
      else
      {
         PWCHAR buf;
         Wnd->strName.MaximumLength = Wnd->strName.Length = 0;
         buf = Wnd->strName.Buffer;
         Wnd->strName.Buffer = NULL;
         if (buf != NULL)
         {
            DesktopHeapFree(Wnd->head.rpdesk, buf);
         }
 
         Wnd->strName.Buffer = DesktopHeapAlloc(Wnd->head.rpdesk,
                                                   UnicodeString.Length + sizeof(UNICODE_NULL));
         if (Wnd->strName.Buffer != NULL)
         {
            Wnd->strName.Buffer[UnicodeString.Length / sizeof(WCHAR)] = L'\0';
            RtlCopyMemory(Wnd->strName.Buffer,
                                 UnicodeString.Buffer,
                                 UnicodeString.Length);
            Wnd->strName.MaximumLength = UnicodeString.Length + sizeof(UNICODE_NULL);
            Wnd->strName.Length = UnicodeString.Length;
         }
         else
         {
            EngSetLastError(ERROR_NOT_ENOUGH_MEMORY);
            goto Exit;
         }
      }
   }
   else
   {
      Wnd->strName.Length = 0;
      if (Wnd->strName.Buffer != NULL)
          Wnd->strName.Buffer[0] = L'\0';
   }
 
   // FIXME: HAX! Windows does not do this in here!
   // In User32, these are called after: NotifyWinEvent EVENT_OBJECT_NAMECHANGE than
   // RepaintButton, StaticRepaint, NtUserCallHwndLock HWNDLOCK_ROUTINE_REDRAWFRAMEANDHOOK, etc.
   /* Send shell notifications */
   if (!Wnd->spwndOwner && !IntGetParent(Wnd))
   {
      co_IntShellHookNotify(HSHELL_REDRAW, (WPARAM) UserHMGetHandle(Wnd), FALSE); // FIXME Flashing?
   }
 
   Ret = TRUE;
Exit:
   if (UnicodeString.Buffer) RtlFreeUnicodeString(&UnicodeString);
   return Ret;
}

Referenced by IntDefWindowProc(), RealDefWindowProcA(), and RealDefWindowProcW().

IntBuildHwndList()

PWINDOWLIST FASTCALL IntBuildHwndList	(	PWND	pwnd,
		DWORD	dwFlags,
		PTHREADINFO	pti
	)

Definition at line 1427 of file window.c.

{
    PWINDOWLIST pwl;
    DWORD cbWL;
 
    if (gpwlCache)
    {
        pwl = gpwlCache;
        gpwlCache = NULL;
    }
    else
    {
#define INITIAL_COUNT 32
        cbWL = sizeof(WINDOWLIST) + (INITIAL_COUNT - 1) * sizeof(HWND);
        pwl = ExAllocatePoolWithTag(PagedPool, cbWL, USERTAG_WINDOWLIST);
        if (!pwl)
            return NULL;
 
        pwl->phwndEnd = &pwl->ahwnd[INITIAL_COUNT];
#undef INITIAL_COUNT
    }
 
    pwl->pti = pti;
    pwl->phwndLast = pwl->ahwnd;
    pwl = IntPopulateHwndList(pwl, pwnd, dwFlags);
    if (WL_IS_BAD(pwl))
    {
        ExFreePoolWithTag(pwl, USERTAG_WINDOWLIST);
        return NULL;
    }
 
    *(pwl->phwndLast) = HWND_TERMINATOR;
 
    if (dwFlags & 0x8)
    {
        // TODO:
    }
 
    pwl->pti = GetW32ThreadInfo();
    pwl->pNextList = gpwlList;
    gpwlList = pwl;
 
    return pwl;
}

Referenced by IntAssociateInputContextEx(), IntCheckImeShowStatus(), IntDestroyInputContext(), and IntImeWindowPosChanged().

IntCheckFrameEdge()

static BOOL FASTCALL IntCheckFrameEdge ( ULONG  Style, ULONG  ExStyle  )

static

Definition at line 3817 of file window.c.

{
   if (ExStyle & WS_EX_DLGMODALFRAME)
      return TRUE;
   else if (!(ExStyle & WS_EX_STATICEDGE) && (Style & (WS_DLGFRAME | WS_THICKFRAME)))
      return TRUE;
   else
      return FALSE;
}

Referenced by co_IntSetWindowLongPtr().

IntCreateWindow()

PWND FASTCALL IntCreateWindow	(	CREATESTRUCTW *	Cs,
		PLARGE_STRING	WindowName,
		PCLS	Class,
		PWND	ParentWindow,
		PWND	OwnerWindow,
		PVOID	acbiBuffer,
		PDESKTOP	pdeskCreated,
		DWORD	dwVer
	)

Definition at line 1804 of file window.c.

{
   PWND pWnd = NULL;
   HWND hWnd;
   PTHREADINFO pti;
   BOOL MenuChanged;
   BOOL bUnicodeWindow;
   PCALLPROCDATA pcpd;
 
   pti = pdeskCreated ? gptiDesktopThread : GetW32ThreadInfo();
 
   if (!(Cs->dwExStyle & WS_EX_LAYOUTRTL))
   {      // Need both here for wine win.c test_CreateWindow.
      //if (Cs->hwndParent && ParentWindow)
      if (ParentWindow) // It breaks more tests..... WIP.
      {
         if ( (Cs->style & (WS_CHILD|WS_POPUP)) == WS_CHILD &&
              ParentWindow->ExStyle & WS_EX_LAYOUTRTL &&
             !(ParentWindow->ExStyle & WS_EX_NOINHERITLAYOUT) )
            Cs->dwExStyle |= WS_EX_LAYOUTRTL;
      }
      else
      { /*
         * Note from MSDN <http://msdn.microsoft.com/en-us/library/aa913269.aspx>:
         *
         * Dialog boxes and message boxes do not inherit layout, so you must
         * set the layout explicitly.
         */
         if ( Class->fnid != FNID_DIALOG )
         {
            if (pti->ppi->dwLayout & LAYOUT_RTL)
            {
               Cs->dwExStyle |= WS_EX_LAYOUTRTL;
            }
         }
      }
   }
 
   /* Automatically add WS_EX_WINDOWEDGE */
   if ((Cs->dwExStyle & WS_EX_DLGMODALFRAME) ||
         ((!(Cs->dwExStyle & WS_EX_STATICEDGE)) &&
         (Cs->style & (WS_DLGFRAME | WS_THICKFRAME))))
      Cs->dwExStyle |= WS_EX_WINDOWEDGE;
   else
      Cs->dwExStyle &= ~WS_EX_WINDOWEDGE;
 
   /* Is it a unicode window? */
   bUnicodeWindow =!(Cs->dwExStyle & WS_EX_SETANSICREATOR);
   Cs->dwExStyle &= ~WS_EX_SETANSICREATOR;
 
   /* Allocate the new window */
   pWnd = (PWND) UserCreateObject( gHandleTable,
                                   pdeskCreated ? pdeskCreated : pti->rpdesk,
                                   pti,
                                  (PHANDLE)&hWnd,
                                   TYPE_WINDOW,
                                   sizeof(WND) + Class->cbwndExtra);
 
   if (!pWnd)
   {
      goto AllocError;
   }
 
   TRACE("Created window object with handle %p\n", hWnd);
 
   if (pdeskCreated && pdeskCreated->DesktopWindow == NULL )
   {  /* HACK: Helper for win32csr/desktopbg.c */
      /* If there is no desktop window yet, we must be creating it */
      TRACE("CreateWindow setting desktop.\n");
      pdeskCreated->DesktopWindow = hWnd;
      pdeskCreated->pDeskInfo->spwnd = pWnd;
   }
 
   /*
    * Fill out the structure describing it.
    */
   /* Remember, pWnd->head is setup in object.c ... */
   WndSetParent(pWnd, ParentWindow);
   WndSetOwner(pWnd, OwnerWindow);
   pWnd->fnid = 0;
   WndSetLastActive(pWnd, pWnd);
   // Ramp up compatible version sets.
   if ( dwVer >= WINVER_WIN31 )
   {
       pWnd->state2 |= WNDS2_WIN31COMPAT;
       if ( dwVer >= WINVER_WINNT4 )
       {
           pWnd->state2 |= WNDS2_WIN40COMPAT;
           if ( dwVer >= WINVER_WIN2K )
           {
               pWnd->state2 |= WNDS2_WIN50COMPAT;
           }
       }
   }
   pWnd->pcls = Class;
   pWnd->hModule = Cs->hInstance;
   pWnd->style = Cs->style & ~WS_VISIBLE;
   pWnd->ExStyle = Cs->dwExStyle;
   pWnd->cbwndExtra = pWnd->pcls->cbwndExtra;
   pWnd->pActCtx = acbiBuffer;
 
   if (pti->spDefaultImc && Class->atomClassName != gpsi->atomSysClass[ICLS_BUTTON])
      pWnd->hImc = UserHMGetHandle(pti->spDefaultImc);
 
   pWnd->InternalPos.MaxPos.x  = pWnd->InternalPos.MaxPos.y  = -1;
   pWnd->InternalPos.IconPos.x = pWnd->InternalPos.IconPos.y = -1;
 
   if (pWnd->spwndParent != NULL && Cs->hwndParent != 0)
   {
       pWnd->HideFocus = pWnd->spwndParent->HideFocus;
       pWnd->HideAccel = pWnd->spwndParent->HideAccel;
   }
 
   InitializeListHead(&pWnd->ThreadListEntry);
   pWnd->head.pti->cWindows++;
 
   if (Class->spicn && !Class->spicnSm)
   {
       HICON IconSmHandle = NULL;
       if((Class->spicn->CURSORF_flags & (CURSORF_LRSHARED | CURSORF_FROMRESOURCE))
               == (CURSORF_LRSHARED | CURSORF_FROMRESOURCE))
       {
           IconSmHandle = co_IntCopyImage(
               UserHMGetHandle(Class->spicn),
               IMAGE_ICON,
               UserGetSystemMetrics( SM_CXSMICON ),
               UserGetSystemMetrics( SM_CYSMICON ),
               LR_COPYFROMRESOURCE);
       }
       if (!IconSmHandle)
       {
           /* Retry without copying from resource */
           IconSmHandle = co_IntCopyImage(
               UserHMGetHandle(Class->spicn),
               IMAGE_ICON,
               UserGetSystemMetrics( SM_CXSMICON ),
               UserGetSystemMetrics( SM_CYSMICON ),
               0);
       }
 
       if (IconSmHandle)
       {
           Class->spicnSm = UserGetCurIconObject(IconSmHandle);
           Class->CSF_flags |= CSF_CACHEDSMICON;
       }
   }
 
   if (pWnd->pcls->CSF_flags & CSF_SERVERSIDEPROC)
      pWnd->state |= WNDS_SERVERSIDEWINDOWPROC;
 
 /* BugBoy Comments: Comment below say that System classes are always created
    as UNICODE. In windows, creating a window with the ANSI version of CreateWindow
    sets the window to ansi as verified by testing with IsUnicodeWindow API.
 
    No where can I see in code or through testing does the window change back
    to ANSI after being created as UNICODE in ROS. I didnt do more testing to
    see what problems this would cause. */
 
   // Set WndProc from Class.
   if (IsCallProcHandle(pWnd->pcls->lpfnWndProc))
   {
      pcpd = UserGetObject(gHandleTable, pWnd->pcls->lpfnWndProc, TYPE_CALLPROC);
      if (pcpd)
         pWnd->lpfnWndProc = pcpd->pfnClientPrevious;
   }
   else
   {
      pWnd->lpfnWndProc = pWnd->pcls->lpfnWndProc;
   }
 
   // GetWindowProc, test for non server side default classes and set WndProc.
    if ( pWnd->pcls->fnid <= FNID_GHOST && pWnd->pcls->fnid >= FNID_BUTTON )
    {
      if (bUnicodeWindow)
      {
         if (GETPFNCLIENTA(pWnd->pcls->fnid) == pWnd->lpfnWndProc)
            pWnd->lpfnWndProc = GETPFNCLIENTW(pWnd->pcls->fnid);
      }
      else
      {
         if (GETPFNCLIENTW(pWnd->pcls->fnid) == pWnd->lpfnWndProc)
            pWnd->lpfnWndProc = GETPFNCLIENTA(pWnd->pcls->fnid);
      }
    }
 
   // If not an Unicode caller, set Ansi creator bit.
   if (!bUnicodeWindow) pWnd->state |= WNDS_ANSICREATOR;
 
   // Clone Class Ansi/Unicode proc type.
   if (pWnd->pcls->CSF_flags & CSF_ANSIPROC)
   {
      pWnd->state |= WNDS_ANSIWINDOWPROC;
      pWnd->Unicode = FALSE;
   }
   else
   { /*
      * It seems there can be both an Ansi creator and Unicode Class Window
      * WndProc, unless the following overriding conditions occur:
      */
      if ( !bUnicodeWindow &&
          ( Class->atomClassName == gpsi->atomSysClass[ICLS_BUTTON]    ||
            Class->atomClassName == gpsi->atomSysClass[ICLS_COMBOBOX]  ||
            Class->atomClassName == gpsi->atomSysClass[ICLS_COMBOLBOX] ||
            Class->atomClassName == gpsi->atomSysClass[ICLS_DIALOG]    ||
            Class->atomClassName == gpsi->atomSysClass[ICLS_EDIT]      ||
            Class->atomClassName == gpsi->atomSysClass[ICLS_IME]       ||
            Class->atomClassName == gpsi->atomSysClass[ICLS_LISTBOX]   ||
            Class->atomClassName == gpsi->atomSysClass[ICLS_MDICLIENT] ||
            Class->atomClassName == gpsi->atomSysClass[ICLS_STATIC] ) )
      { // Override Class and set the window Ansi WndProc.
         pWnd->state |= WNDS_ANSIWINDOWPROC;
         pWnd->Unicode = FALSE;
      }
      else
      { // Set the window Unicode WndProc.
         pWnd->state &= ~WNDS_ANSIWINDOWPROC;
         pWnd->Unicode = TRUE;
      }
   }
 
   /* BugBoy Comments: if the window being created is a edit control, ATOM 0xCxxx,
      then my testing shows that windows (2k and XP) creates a CallProc for it immediately
      Dont understand why it does this. */
   if (Class->atomClassName == gpsi->atomSysClass[ICLS_EDIT])
   {
      PCALLPROCDATA CallProc;
      CallProc = CreateCallProc(pWnd->head.rpdesk, pWnd->lpfnWndProc, pWnd->Unicode , pWnd->head.pti->ppi);
 
      if (!CallProc)
      {
         EngSetLastError(ERROR_NOT_ENOUGH_MEMORY);
         ERR("Warning: Unable to create CallProc for edit control. Control may not operate correctly! hwnd %p\n", hWnd);
      }
      else
      {
         UserAddCallProcToClass(pWnd->pcls, CallProc);
      }
   }
 
   InitializeListHead(&pWnd->PropListHead);
   pWnd->PropListItems = 0;
 
   if ( WindowName->Buffer != NULL && WindowName->Length > 0 )
   {
      pWnd->strName.Buffer = DesktopHeapAlloc(pWnd->head.rpdesk,
                                             WindowName->Length + sizeof(UNICODE_NULL));
      if (pWnd->strName.Buffer == NULL)
      {
          goto AllocError;
      }
 
      RtlCopyMemory(pWnd->strName.Buffer, WindowName->Buffer, WindowName->Length);
      pWnd->strName.Buffer[WindowName->Length / sizeof(WCHAR)] = L'\0';
      pWnd->strName.Length = WindowName->Length;
      pWnd->strName.MaximumLength = WindowName->Length + sizeof(UNICODE_NULL);
   }
 
   /* Correct the window style. */
   if ((pWnd->style & (WS_CHILD | WS_POPUP)) != WS_CHILD)
   {
      pWnd->style |= WS_CLIPSIBLINGS;
      if (!(pWnd->style & WS_POPUP))
      {
         pWnd->style |= WS_CAPTION;
      }
   }
 
   /* WS_EX_WINDOWEDGE depends on some other styles */
   if (pWnd->ExStyle & WS_EX_DLGMODALFRAME)
       pWnd->ExStyle |= WS_EX_WINDOWEDGE;
   else if (pWnd->style & (WS_DLGFRAME | WS_THICKFRAME))
   {
       if (!((pWnd->ExStyle & WS_EX_STATICEDGE) &&
            (pWnd->style & (WS_CHILD | WS_POPUP))))
           pWnd->ExStyle |= WS_EX_WINDOWEDGE;
   }
    else
        pWnd->ExStyle &= ~WS_EX_WINDOWEDGE;
 
   if (!(pWnd->style & (WS_CHILD | WS_POPUP)))
      pWnd->state |= WNDS_SENDSIZEMOVEMSGS;
 
   /* Set the window menu */
   if ((Cs->style & (WS_CHILD | WS_POPUP)) != WS_CHILD)
   {
      if (Cs->hMenu)
      {
         IntSetMenu(pWnd, Cs->hMenu, &MenuChanged);
      }
      else if (pWnd->pcls->lpszMenuName) // Take it from the parent.
      {
          UNICODE_STRING MenuName;
          HMENU hMenu;
 
          if (IS_INTRESOURCE(pWnd->pcls->lpszMenuName))
          {
             MenuName.Length = 0;
             MenuName.MaximumLength = 0;
             MenuName.Buffer = pWnd->pcls->lpszMenuName;
          }
          else
          {
             RtlInitUnicodeString( &MenuName, pWnd->pcls->lpszMenuName);
          }
          hMenu = co_IntCallLoadMenu( pWnd->pcls->hModule, &MenuName);
          if (hMenu) IntSetMenu(pWnd, hMenu, &MenuChanged);
      }
   }
   else // Not a child
      pWnd->IDMenu = (UINT_PTR)Cs->hMenu;
 
 
   if ( ParentWindow &&
        ParentWindow != ParentWindow->head.rpdesk->spwndMessage &&
        ParentWindow != ParentWindow->head.rpdesk->pDeskInfo->spwnd )
   {
       PWND Owner = IntGetNonChildAncestor(ParentWindow);
 
       if (!IntValidateOwnerDepth(pWnd, Owner))
       {
          EngSetLastError(ERROR_INVALID_PARAMETER);
          goto Error;
       }
       if ( pWnd->spwndOwner &&
            pWnd->spwndOwner->ExStyle & WS_EX_TOPMOST )
       {
          pWnd->ExStyle |= WS_EX_TOPMOST;
       }
       if ( pWnd->spwndOwner &&
            Class->atomClassName != gpsi->atomSysClass[ICLS_IME] &&
            pti != pWnd->spwndOwner->head.pti)
       {
          //ERR("CreateWindow Owner in.\n");
          UserAttachThreadInput(pti, pWnd->spwndOwner->head.pti, TRUE);
       }
   }
 
   /* Insert the window into the thread's window list. */
   InsertTailList (&pti->WindowListHead, &pWnd->ThreadListEntry);
 
   /* Handle "CS_CLASSDC", it is tested first. */
   if ( (pWnd->pcls->style & CS_CLASSDC) && !(pWnd->pcls->pdce) )
   {  /* One DCE per class to have CLASS. */
      pWnd->pcls->pdce = DceAllocDCE( pWnd, DCE_CLASS_DC );
   }
   else if ( pWnd->pcls->style & CS_OWNDC)
   {  /* Allocate a DCE for this window. */
      DceAllocDCE(pWnd, DCE_WINDOW_DC);
   }
 
   return pWnd;
 
AllocError:
   ERR("IntCreateWindow Allocation Error.\n");
   SetLastNtError(STATUS_INSUFFICIENT_RESOURCES);
Error:
   if(pWnd)
      UserDereferenceObject(pWnd);
   return NULL;
}

Referenced by co_UserCreateWindowEx(), and IntCreateDesktop().

IntDestroyOwnedWindows()

VOID FASTCALL IntDestroyOwnedWindows

(

PWND

Window

)

Definition at line 2820 of file window.c.

{
    HWND* List;
    HWND* phWnd;
    PWND pWnd;
    USER_REFERENCE_ENTRY Ref;
 
    List = IntWinListOwnedPopups(Window);
    if (!List)
        return;
 
    for (phWnd = List; *phWnd; ++phWnd)
    {
        pWnd = ValidateHwndNoErr(*phWnd);
        if (pWnd == NULL)
            continue;
        ASSERT(pWnd->spwndOwner == Window);
        ASSERT(pWnd != Window);
 
        WndSetOwner(pWnd, NULL);
        if (IntWndBelongsToThread(pWnd, PsGetCurrentThreadWin32Thread()))
        {
            UserRefObjectCo(pWnd, &Ref); // Temp HACK?
            co_UserDestroyWindow(pWnd);
            UserDerefObjectCo(pWnd); // Temp HACK?
        }
        else
        {
            ERR("IntWndBelongsToThread(0x%p) is FALSE, ignoring.\n", pWnd);
        }
    }
 
    ExFreePoolWithTag(List, USERTAG_WINDOWLIST);
}

Referenced by co_UserDestroyWindow().

IntEnableWindow()

BOOL FASTCALL IntEnableWindow	(	HWND	hWnd,
		BOOL	bEnable
	)

Definition at line 222 of file window.c.

{
   BOOL Update;
   PWND pWnd;
   UINT bIsDisabled;
 
   if(!(pWnd = UserGetWindowObject(hWnd)))
   {
      return FALSE;
   }
 
   /* check if updating is needed */
   bIsDisabled = !!(pWnd->style & WS_DISABLED);
   Update = bIsDisabled;
 
    if (bEnable)
    {
       IntSetStyle( pWnd, 0, WS_DISABLED );
    }
    else
    {
       Update = !bIsDisabled;
 
       co_IntSendMessage( hWnd, WM_CANCELMODE, 0, 0);
 
       /* Remove keyboard focus from that window if it had focus */
       if (hWnd == IntGetThreadFocusWindow())
       {
          TRACE("IntEnableWindow SF NULL\n");
          co_UserSetFocus(NULL);
       }
       IntSetStyle( pWnd, WS_DISABLED, 0 );
    }
 
    if (Update)
    {
        IntNotifyWinEvent(EVENT_OBJECT_STATECHANGE, pWnd, OBJID_WINDOW, CHILDID_SELF, 0);
        co_IntSendMessage(hWnd, WM_ENABLE, (LPARAM)bEnable, 0);
    }
    // Return nonzero if it was disabled, or zero if it wasn't:
    return bIsDisabled;
}

Referenced by NtUserCallTwoParam(), and NtUserEnableScrollBar().

IntFindWindow()

HWND FASTCALL IntFindWindow	(	PWND	Parent,
		PWND	ChildAfter,
		RTL_ATOM	ClassAtom,
		PUNICODE_STRING	WindowName
	)

Definition at line 3064 of file window.c.

{
   BOOL CheckWindowName;
   HWND *List, *phWnd;
   HWND Ret = NULL;
   UNICODE_STRING CurrentWindowName;
 
   ASSERT(Parent);
 
   CheckWindowName = WindowName->Buffer != 0;
 
   if((List = IntWinListChildren(Parent)))
   {
      phWnd = List;
      if(ChildAfter)
      {
         /* skip handles before and including ChildAfter */
         while(*phWnd && (*(phWnd++) != UserHMGetHandle(ChildAfter)))
            ;
      }
 
      /* search children */
      while(*phWnd)
      {
         PWND Child;
         if(!(Child = UserGetWindowObject(*(phWnd++))))
         {
            continue;
         }
 
         /* Do not send WM_GETTEXT messages in the kernel mode version!
            The user mode version however calls GetWindowText() which will
            send WM_GETTEXT messages to windows belonging to its processes */
         if (!ClassAtom || Child->pcls->atomNVClassName == ClassAtom)
         {
             // FIXME: LARGE_STRING truncated
             CurrentWindowName.Buffer = Child->strName.Buffer;
             CurrentWindowName.Length = (USHORT)min(Child->strName.Length, MAXUSHORT);
             CurrentWindowName.MaximumLength = (USHORT)min(Child->strName.MaximumLength, MAXUSHORT);
             if(!CheckWindowName ||
                (Child->strName.Length < 0xFFFF &&
                 !RtlCompareUnicodeString(WindowName, &CurrentWindowName, TRUE)))
             {
                Ret = UserHMGetHandle(Child);
                break;
             }
         }
      }
      ExFreePoolWithTag(List, USERTAG_WINDOWLIST);
   }
 
   return Ret;
}

Referenced by NtUserFindWindowEx().

IntFixWindowCoordinates()

void FASTCALL IntFixWindowCoordinates	(	CREATESTRUCTW *	Cs,
		PWND	ParentWindow,
		DWORD *	dwShowMode
	)

Definition at line 1714 of file window.c.

{
#define IS_DEFAULT(x)  ((x) == CW_USEDEFAULT || (x) == (SHORT)0x8000)
 
   /* default positioning for overlapped windows */
    if(!(Cs->style & (WS_POPUP | WS_CHILD)))
   {
      PMONITOR pMonitor;
      PRTL_USER_PROCESS_PARAMETERS ProcessParams;
 
      pMonitor = UserGetPrimaryMonitor();
 
      /* Check if we don't have a monitor attached yet */
      if(pMonitor == NULL)
      {
          Cs->x = Cs->y = 0;
          Cs->cx = 800;
          Cs->cy = 600;
          return;
      }
 
      ProcessParams = PsGetCurrentProcess()->Peb->ProcessParameters;
 
      if (IS_DEFAULT(Cs->x))
      {
          if (!IS_DEFAULT(Cs->y)) *dwShowMode = Cs->y;
 
          if(ProcessParams->WindowFlags & STARTF_USEPOSITION)
          {
              Cs->x = ProcessParams->StartingX;
              Cs->y = ProcessParams->StartingY;
          }
          else
          {
               Cs->x = pMonitor->cWndStack * (UserGetSystemMetrics(SM_CXSIZE) + UserGetSystemMetrics(SM_CXFRAME));
               Cs->y = pMonitor->cWndStack * (UserGetSystemMetrics(SM_CYSIZE) + UserGetSystemMetrics(SM_CYFRAME));
               if (Cs->x > ((pMonitor->rcWork.right - pMonitor->rcWork.left) / 4) ||
                   Cs->y > ((pMonitor->rcWork.bottom - pMonitor->rcWork.top) / 4))
               {
                  /* reset counter and position */
                  Cs->x = 0;
                  Cs->y = 0;
                  pMonitor->cWndStack = 0;
               }
               pMonitor->cWndStack++;
          }
      }
 
      if (IS_DEFAULT(Cs->cx))
      {
          if (ProcessParams->WindowFlags & STARTF_USEPOSITION)
          {
              Cs->cx = ProcessParams->CountX;
              Cs->cy = ProcessParams->CountY;
          }
          else
          {
              Cs->cx = (pMonitor->rcWork.right - pMonitor->rcWork.left) * 3 / 4;
              Cs->cy = (pMonitor->rcWork.bottom - pMonitor->rcWork.top) * 3 / 4;
          }
      }
      /* neither x nor cx are default. Check the y values .
       * In the trace we see Outlook and Outlook Express using
       * cy set to CW_USEDEFAULT when opening the address book.
       */
      else if (IS_DEFAULT(Cs->cy))
      {
          TRACE("Strange use of CW_USEDEFAULT in nHeight\n");
          Cs->cy = (pMonitor->rcWork.bottom - pMonitor->rcWork.top) * 3 / 4;
      }
   }
   else
   {
      /* if CW_USEDEFAULT is set for non-overlapped windows, both values are set to zero */
      if(IS_DEFAULT(Cs->x))
      {
         Cs->x = 0;
         Cs->y = 0;
      }
      if(IS_DEFAULT(Cs->cx))
      {
         Cs->cx = 0;
         Cs->cy = 0;
      }
   }
 
#undef IS_DEFAULT
}

Referenced by co_UserCreateWindowEx().

IntFreeHwndList()

VOID FASTCALL IntFreeHwndList

(

PWINDOWLIST

pwlTarget

)

Definition at line 1473 of file window.c.

{
    PWINDOWLIST pwl, *ppwl;
 
    for (ppwl = &gpwlList; *ppwl; ppwl = &(*ppwl)->pNextList)
    {
        if (*ppwl != pwlTarget)
            continue;
 
        *ppwl = pwlTarget->pNextList;
 
        if (gpwlCache)
        {
            if (WL_CAPACITY(pwlTarget) > WL_CAPACITY(gpwlCache))
            {
                pwl = gpwlCache;
                gpwlCache = pwlTarget;
                ExFreePoolWithTag(pwl, USERTAG_WINDOWLIST);
            }
            else
            {
                ExFreePoolWithTag(pwlTarget, USERTAG_WINDOWLIST);
            }
        }
        else
        {
            gpwlCache = pwlTarget;
        }
 
        break;
    }
}

Referenced by ExitThreadCallback(), IntAssociateInputContextEx(), IntCheckImeShowStatus(), IntDestroyInputContext(), and IntImeWindowPosChanged().

IntGetNonChildAncestor()

PWND FASTCALL IntGetNonChildAncestor

(

PWND

pWnd

)

Definition at line 353 of file window.c.

{
   while(pWnd && (pWnd->style & (WS_CHILD | WS_POPUP)) == WS_CHILD)
      pWnd = pWnd->spwndParent;
   return pWnd;
}

Referenced by co_IntProcessMouseMessage(), co_IntSetActiveWindow(), and IntCreateWindow().

IntGetParent()

PWND FASTCALL IntGetParent

(

PWND

Wnd

)

Definition at line 206 of file window.c.

{
   if (Wnd->style & WS_POPUP)
   {
      return Wnd->spwndOwner;
   }
   else if (Wnd->style & WS_CHILD)
   {
      return Wnd->spwndParent;
   }
 
   return NULL;
}

Referenced by co_UserDestroyWindow(), DefSetText(), DefWndDoSizeMove(), DefWndHandleWindowPosChanged(), GetControlBrush(), IntDefWindowProc(), IntGetWindowContextHelpId(), MsqSendParentNotify(), NC_DoNCPaint(), NC_GetSysPopupPos(), NtUserCallHwndLock(), NtUserDefSetText(), and UserGetAncestor().

IntGetWindow()

HWND FASTCALL IntGetWindow	(	HWND	hWnd,
		UINT	uCmd
	)

Definition at line 383 of file window.c.

{
    PWND Wnd, FoundWnd;
    HWND Ret = NULL;
 
    Wnd = ValidateHwndNoErr(hWnd);
    if (!Wnd)
        return NULL;
 
    FoundWnd = NULL;
    switch (uCmd)
    {
            case GW_OWNER:
                if (Wnd->spwndOwner != NULL)
                    FoundWnd = Wnd->spwndOwner;
                break;
 
            case GW_HWNDFIRST:
                if(Wnd->spwndParent != NULL)
                {
                    FoundWnd = Wnd->spwndParent;
                    if (FoundWnd->spwndChild != NULL)
                        FoundWnd = FoundWnd->spwndChild;
                }
                break;
            case GW_HWNDNEXT:
                if (Wnd->spwndNext != NULL)
                    FoundWnd = Wnd->spwndNext;
                break;
 
            case GW_HWNDPREV:
                if (Wnd->spwndPrev != NULL)
                    FoundWnd = Wnd->spwndPrev;
                break;
 
            case GW_CHILD:
                if (Wnd->spwndChild != NULL)
                    FoundWnd = Wnd->spwndChild;
                break;
 
            case GW_HWNDLAST:
                FoundWnd = Wnd;
                while ( FoundWnd->spwndNext != NULL)
                    FoundWnd = FoundWnd->spwndNext;
                break;
 
            default:
                Wnd = NULL;
                break;
    }
 
    if (FoundWnd != NULL)
        Ret = UserHMGetHandle(FoundWnd);
    return Ret;
}

Referenced by WinPosFixupFlags().

IntGetWindowContextHelpId()

DWORD FASTCALL IntGetWindowContextHelpId

(

PWND

pWnd

)

Definition at line 440 of file window.c.

{
   DWORD HelpId;
 
   do
   {
      HelpId = HandleToUlong(UserGetProp(pWnd, gpsi->atomContextHelpIdProp, TRUE));
      if (!HelpId) break;
      pWnd = IntGetParent(pWnd);
   }
   while (pWnd && pWnd->fnid != FNID_DESKTOP);
   return HelpId;
}

Referenced by IntDefWindowProc().

IntGetWindowObject()

PWND FASTCALL IntGetWindowObject

(

HWND

hWnd

)

Definition at line 75 of file window.c.

{
   PWND Window;
 
   if (!hWnd) return NULL;
 
   Window = UserGetWindowObject(hWnd);
   if (Window)
      Window->head.cLockObj++;
 
   return Window;
}

Referenced by co_UserFreeWindow(), IntHideDesktop(), and IntSetOwner().

IntGetWindowProc()

WNDPROC FASTCALL IntGetWindowProc	(	PWND	pWnd,
		BOOL	Ansi
	)

Definition at line 783 of file window.c.

{
   INT i;
   PCLS Class;
   WNDPROC gcpd, Ret = 0;
 
   ASSERT(UserIsEnteredExclusive());
 
   Class = pWnd->pcls;
 
   if (pWnd->state & WNDS_SERVERSIDEWINDOWPROC)
   {
      for ( i = FNID_FIRST; i <= FNID_SWITCH; i++)
      {
         if (GETPFNSERVER(i) == pWnd->lpfnWndProc)
         {
            if (Ansi)
               Ret = GETPFNCLIENTA(i);
            else
               Ret = GETPFNCLIENTW(i);
         }
      }
      return Ret;
   }
 
   if (Class->fnid == FNID_EDIT)
      Ret = pWnd->lpfnWndProc;
   else
   {
      Ret = pWnd->lpfnWndProc;
 
      if (Class->fnid <= FNID_GHOST && Class->fnid >= FNID_BUTTON)
      {
         if (Ansi)
         {
            if (GETPFNCLIENTW(Class->fnid) == pWnd->lpfnWndProc)
               Ret = GETPFNCLIENTA(Class->fnid);
         }
         else
         {
            if (GETPFNCLIENTA(Class->fnid) == pWnd->lpfnWndProc)
               Ret = GETPFNCLIENTW(Class->fnid);
         }
      }
      if ( Ret != pWnd->lpfnWndProc)
         return Ret;
   }
   if ( Ansi == !!(pWnd->state & WNDS_ANSIWINDOWPROC) )
      return Ret;
 
   gcpd = (WNDPROC)UserGetCPD(
                       pWnd,
                      (Ansi ? UserGetCPDA2U : UserGetCPDU2A )|UserGetCPDWindow,
                      (ULONG_PTR)Ret);
 
   return (gcpd ? gcpd : Ret);
}

Referenced by IntSetWindowProc().

IntGrowHwndList()

BOOL FASTCALL IntGrowHwndList

(

PWINDOWLIST *

ppwl

)

Definition at line 1376 of file window.c.

{
    PWINDOWLIST pwlOld, pwlNew;
    SIZE_T ibOld, ibNew;
 
#define GROW_COUNT 8
    pwlOld = *ppwl;
    ibOld = (LPBYTE)pwlOld->phwndLast - (LPBYTE)pwlOld;
    ibNew = ibOld + GROW_COUNT * sizeof(HWND);
#undef GROW_COUNT
    pwlNew = IntReAllocatePoolWithTag(PagedPool, pwlOld, ibOld, ibNew, USERTAG_WINDOWLIST);
    if (!pwlNew)
        return FALSE;
 
    pwlNew->phwndLast = (HWND *)((LPBYTE)pwlNew + ibOld);
    pwlNew->phwndEnd = (HWND *)((LPBYTE)pwlNew + ibNew);
    *ppwl = pwlNew;
    return TRUE;
}

Referenced by IntPopulateHwndList().

IntIsChildWindow()

BOOL FASTCALL IntIsChildWindow	(	PWND	Parent,
		PWND	BaseWindow
	)

Definition at line 930 of file window.c.

{
   PWND Window = BaseWindow;
   do
   {
     if ( Window == NULL || (Window->style & (WS_POPUP|WS_CHILD)) != WS_CHILD )
        return FALSE;
 
     Window = Window->spwndParent;
   }
   while(Parent != Window);
   return TRUE;
}

Referenced by co_IntFixCaret(), co_IntSetParent(), DceResetActiveDCEs(), IntGetPaintMessage(), and NC_DoNCPaint().

IntIsTopLevelWindow()

BOOL FASTCALL IntIsTopLevelWindow

(

PWND

pWnd

)

Definition at line 361 of file window.c.

{
   if ( pWnd->spwndParent &&
        pWnd->spwndParent == co_GetDesktopWindow(pWnd) ) return TRUE;
   return FALSE;
}

Referenced by co_UserCreateWindowEx(), and co_UserDestroyWindow().

IntIsWindow()

BOOL FASTCALL IntIsWindow

(

HWND

hWnd

)

Definition at line 178 of file window.c.

{
   PWND Window;
 
   if (!(Window = UserGetWindowObject(hWnd)))
   {
      return FALSE;
   }
 
   return TRUE;
}

Referenced by co_IntPaintWindows(), co_UserDestroyWindow(), co_UserSetFocus(), co_WinPosSetWindowPos(), DefWndDoSizeMove(), IntSendDestroyMsg(), IntTrackPopupMenuEx(), NtUserCallHwnd(), NtUserSetActiveWindow(), and NtUserSetLogonNotifyWindow().

IntIsWindowVisible()

BOOL FASTCALL IntIsWindowVisible

(

PWND

Wnd

)

Definition at line 191 of file window.c.

{
   PWND Temp = Wnd;
   for (;;)
   {
      if (!Temp) return TRUE;
      if (!(Temp->style & WS_VISIBLE)) break;
      if (Temp->style & WS_MINIMIZE && Temp != Wnd) break;
      if (Temp->fnid == FNID_DESKTOP) return TRUE;
      Temp = Temp->spwndParent;
   }
   return FALSE;
}

Referenced by co_IntSendActivateMessages(), DefWndDoSizeMove(), DefWndPrint(), NC_DoNCPaint(), UserDrawCaptionBar(), and WinPosFixupFlags().

IntLinkHwnd()

VOID FASTCALL IntLinkHwnd	(	PWND	Wnd,
		HWND	hWndPrev
	)

Definition at line 986 of file window.c.

{
    if (hWndPrev == HWND_NOTOPMOST)
    {
        if (!(Wnd->ExStyle & WS_EX_TOPMOST) && (Wnd->ExStyle2 & WS_EX2_LINKED))
            return;  /* nothing to do */
        Wnd->ExStyle &= ~WS_EX_TOPMOST;
        hWndPrev = HWND_TOP;  /* fallback to the HWND_TOP case */
    }
 
    IntUnlinkWindow(Wnd);  /* unlink it from the previous location */
 
    if (hWndPrev == HWND_BOTTOM)
    {
        /* Link in the bottom of the list */
        PWND WndInsertAfter;
 
        WndInsertAfter = Wnd->spwndParent->spwndChild;
        while (WndInsertAfter && WndInsertAfter->spwndNext)
        {
            WndInsertAfter = WndInsertAfter->spwndNext;
        }
 
        IntLinkWindow(Wnd, WndInsertAfter);
        Wnd->ExStyle &= ~WS_EX_TOPMOST;
    }
    else if (hWndPrev == HWND_TOPMOST)
    {
        /* Link in the top of the list */
        IntLinkWindow(Wnd, NULL);
        Wnd->ExStyle |= WS_EX_TOPMOST;
    }
    else if (hWndPrev == HWND_TOP)
    {
        /* Link it after the last topmost window */
        PWND WndInsertBefore;
 
        WndInsertBefore = Wnd->spwndParent->spwndChild;
 
        if (!(Wnd->ExStyle & WS_EX_TOPMOST))  /* put it above the first non-topmost window */
        {
            while (WndInsertBefore != NULL && WndInsertBefore->spwndNext != NULL)
            {
                if (!(WndInsertBefore->ExStyle & WS_EX_TOPMOST))
                    break;
 
                if (WndInsertBefore == Wnd->spwndOwner)  /* keep it above owner */
                {
                    Wnd->ExStyle |= WS_EX_TOPMOST;
                    break;
                }
                WndInsertBefore = WndInsertBefore->spwndNext;
            }
        }
 
        IntLinkWindow(Wnd, WndInsertBefore ? WndInsertBefore->spwndPrev : NULL);
    }
    else
    {
        /* Link it after hWndPrev */
        PWND WndInsertAfter;
 
        WndInsertAfter = UserGetWindowObject(hWndPrev);
        /* Are we called with an erroneous handle */
        if (WndInsertAfter == NULL)
        {
            /* Link in a default position */
            IntLinkHwnd(Wnd, HWND_TOP);
            return;
        }
 
        if (Wnd == WndInsertAfter)
        {
            ERR("Trying to link window 0x%p to itself\n", Wnd);
            ASSERT(WndInsertAfter != Wnd);
            // FIXME: IntUnlinkWindow(Wnd) was already called. Continuing as is seems wrong!
        }
        else
        {
            IntLinkWindow(Wnd, WndInsertAfter);
        }
 
        /* Fix the WS_EX_TOPMOST flag */
        if (!(WndInsertAfter->ExStyle & WS_EX_TOPMOST))
        {
            Wnd->ExStyle &= ~WS_EX_TOPMOST;
        }
        else
        {
            if (WndInsertAfter->spwndNext &&
                (WndInsertAfter->spwndNext->ExStyle & WS_EX_TOPMOST))
            {
                Wnd->ExStyle |= WS_EX_TOPMOST;
            }
        }
    }
    Wnd->ExStyle2 |= WS_EX2_LINKED;
}

Referenced by co_IntSetParent(), co_UserCreateWindowEx(), co_WinPosSetWindowPos(), IntImeSetTopMost(), and IntLinkHwnd().

IntLinkWindow()

VOID FASTCALL IntLinkWindow	(	PWND	Wnd,
		PWND	WndInsertAfter
	)

Definition at line 947 of file window.c.

{
    if (Wnd == WndInsertAfter)
    {
        ERR("Trying to link window 0x%p to itself\n", Wnd);
        ASSERT(WndInsertAfter != Wnd);
        return;
    }
 
    WndSetPrev(Wnd, WndInsertAfter);
    if (Wnd->spwndPrev)
    {
        /* Link after WndInsertAfter */
        ASSERT(Wnd != WndInsertAfter->spwndNext);
        WndSetNext(Wnd, WndInsertAfter->spwndNext);
        if (Wnd->spwndNext)
            WndSetPrev(Wnd->spwndNext, Wnd);
 
        ASSERT(Wnd != Wnd->spwndPrev);
        WndSetNext(Wnd->spwndPrev, Wnd);
    }
    else
    {
        /* Link at the top */
        ASSERT(Wnd != Wnd->spwndParent->spwndChild);
        WndSetNext(Wnd, Wnd->spwndParent->spwndChild);
        if (Wnd->spwndNext)
            WndSetPrev(Wnd->spwndNext, Wnd);
 
        WndSetChild(Wnd->spwndParent, Wnd);
    }
}

Referenced by IntLinkHwnd().

IntPopulateHwndList()

PWINDOWLIST FASTCALL IntPopulateHwndList	(	PWINDOWLIST	pwl,
		PWND	pwnd,
		DWORD	dwFlags
	)

Definition at line 1397 of file window.c.

{
    ASSERT(!WL_IS_BAD(pwl));
 
    for (; pwnd; pwnd = pwnd->spwndNext)
    {
        if (!pwl->pti || pwl->pti == pwnd->head.pti)
        {
            *(pwl->phwndLast) = UserHMGetHandle(pwnd);
            ++(pwl->phwndLast);
 
            if (pwl->phwndLast == pwl->phwndEnd && !IntGrowHwndList(&pwl))
                break;
        }
 
        if ((dwFlags & IACE_CHILDREN) && pwnd->spwndChild)
        {
            pwl = IntPopulateHwndList(pwl, pwnd->spwndChild, IACE_CHILDREN | IACE_LIST);
            if (WL_IS_BAD(pwl))
                break;
        }
 
        if (!(dwFlags & IACE_LIST))
            break;
    }
 
    return pwl;
}

Referenced by IntBuildHwndList(), and IntPopulateHwndList().

IntProcessOwnerSwap()

VOID FASTCALL IntProcessOwnerSwap	(	PWND	Wnd,
		PWND	WndNewOwner,
		PWND	WndOldOwner
	)

Definition at line 1086 of file window.c.

{
   if (WndOldOwner)
   {
      if (Wnd->head.pti != WndOldOwner->head.pti)
      {
         if (!WndNewOwner ||
              Wnd->head.pti == WndNewOwner->head.pti ||
              WndOldOwner->head.pti != WndNewOwner->head.pti )
         {
            //ERR("ProcessOwnerSwap Old out.\n");
            UserAttachThreadInput(Wnd->head.pti, WndOldOwner->head.pti, FALSE);
         }
      }
   }
   if (WndNewOwner)
   {
      if (Wnd->head.pti != WndNewOwner->head.pti)
      {
         if (!WndOldOwner ||
              WndOldOwner->head.pti != WndNewOwner->head.pti )
         {
            //ERR("ProcessOwnerSwap New in.\n");
            UserAttachThreadInput(Wnd->head.pti, WndNewOwner->head.pti, TRUE);
         }
      }
   }
   // FIXME: System Tray checks.
}

Referenced by IntSetOwner().

IntReAllocatePoolWithTag()

PVOID FASTCALL IntReAllocatePoolWithTag	(	POOL_TYPE	PoolType,
		PVOID	pOld,
		SIZE_T	cbOld,
		SIZE_T	cbNew,
		ULONG	Tag
	)

Definition at line 24 of file window.c.

{
    PVOID pNew = ExAllocatePoolWithTag(PoolType, cbNew, Tag);
    if (!pNew)
        return NULL;
 
    RtlCopyMemory(pNew, pOld, min(cbOld, cbNew));
    ExFreePoolWithTag(pOld, Tag);
    return pNew;
}

Referenced by IntGrowHwndList().

IntRemoveTrackMouseEvent()

VOID FASTCALL IntRemoveTrackMouseEvent

(

PDESKTOP

pDesk

)

Definition at line 355 of file mouse.c.

{
    /* Generate a leave message */
    if (pDesk->dwDTFlags & DF_TME_LEAVE)
    {
        UINT uMsg = (pDesk->htEx != HTCLIENT) ? WM_NCMOUSELEAVE : WM_MOUSELEAVE;
        UserPostMessage(UserHMGetHandle(pDesk->spwndTrack), uMsg, 0, 0);
    }
    /* Kill the timer */
    if (pDesk->dwDTFlags & DF_TME_HOVER)
        IntKillTimer(pDesk->spwndTrack, ID_EVENT_SYSTIMER_MOUSEHOVER, TRUE);
 
    /* Reset state */
    pDesk->dwDTFlags &= ~(DF_TME_LEAVE|DF_TME_HOVER);
    pDesk->spwndTrack = NULL;
}

Referenced by IntSendDestroyMsg().

IntSendDestroyMsg()

static void IntSendDestroyMsg ( HWND  hWnd )

static

Definition at line 463 of file window.c.

{
   PTHREADINFO ti;
   PWND Window;
 
   ti = PsGetCurrentThreadWin32Thread();
   Window = UserGetWindowObject(hWnd);
 
   if (Window)
   {
      /*
       * Look whether the focus is within the tree of windows
       * we will be destroying.
       */
      // Rule #1
      if ( ti->MessageQueue->spwndActive == Window || // Fixes CORE-106 RegSvr32 exit and return focus to CMD.
          (ti->MessageQueue->spwndActive == NULL && ti->MessageQueue == IntGetFocusMessageQueue()) )
      {
         co_WinPosActivateOtherWindow(Window);
      }
 
      /* Fixes CMD properties closing and returning focus to CMD */
      if (ti->MessageQueue->spwndFocus == Window)
      {
         if ((Window->style & (WS_CHILD | WS_POPUP)) == WS_CHILD)
         {
            co_UserSetFocus(Window->spwndParent);
         }
         else
         {
            co_UserSetFocus(NULL);
         }
      }
 
      if (ti->MessageQueue->CaretInfo.hWnd == UserHMGetHandle(Window))
      {
         co_IntDestroyCaret(ti);
      }
 
      /* If the window being destroyed is currently tracked... */
      if (ti->rpdesk && ti->rpdesk->spwndTrack == Window)
      {
          IntRemoveTrackMouseEvent(ti->rpdesk);
      }
   }
 
   /* If the window being destroyed is the current clipboard owner... */
   if (ti->ppi->prpwinsta != NULL && Window == ti->ppi->prpwinsta->spwndClipOwner)
   {
       /* ... make it release the clipboard */
       UserClipboardRelease(Window);
   }
 
   /* Send the WM_DESTROY to the window */
   co_IntSendMessage(hWnd, WM_DESTROY, 0, 0);
 
   /*
    * This WM_DESTROY message can trigger re-entrant calls to DestroyWindow
    * make sure that the window still exists when we come back.
    */
   if (IntIsWindow(hWnd))
   {
      HWND* pWndArray;
      int i;
 
      if (!(pWndArray = IntWinListChildren( Window ))) return;
 
      for (i = 0; pWndArray[i]; i++)
      {
         if (IntIsWindow( pWndArray[i] )) IntSendDestroyMsg( pWndArray[i] );
      }
      ExFreePoolWithTag(pWndArray, USERTAG_WINDOWLIST);
   }
   else
   {
      TRACE("destroyed itself while in WM_DESTROY!\n");
   }
}

Referenced by co_UserDestroyWindow(), and IntSendDestroyMsg().

IntSendParentNotify()

static void IntSendParentNotify ( PWND  pWindow, UINT  msg  )

static

Definition at line 1695 of file window.c.

{
    if ( (pWindow->style & (WS_CHILD | WS_POPUP)) == WS_CHILD &&
         !(pWindow->ExStyle & WS_EX_NOPARENTNOTIFY))
    {
        if (VerifyWnd(pWindow->spwndParent) && !UserIsDesktopWindow(pWindow->spwndParent))
        {
            USER_REFERENCE_ENTRY Ref;
            UserRefObjectCo(pWindow->spwndParent, &Ref);
            co_IntSendMessage( UserHMGetHandle(pWindow->spwndParent),
                               WM_PARENTNOTIFY,
                               MAKEWPARAM( msg, pWindow->IDMenu),
                               (LPARAM)UserHMGetHandle(pWindow) );
            UserDerefObjectCo(pWindow->spwndParent);
        }
    }
}

Referenced by co_UserCreateWindowEx(), and co_UserDestroyWindow().

IntSetOwner()

static HWND FASTCALL IntSetOwner ( HWND  hWnd, HWND  hWndNewOwner  )

static

Definition at line 1118 of file window.c.

{
   PWND Wnd, WndOldOwner, WndNewOwner;
   HWND ret;
 
   Wnd = IntGetWindowObject(hWnd);
   if(!Wnd)
      return NULL;
 
   WndOldOwner = Wnd->spwndOwner;
 
   ret = WndOldOwner ? UserHMGetHandle(WndOldOwner) : 0;
   WndNewOwner = UserGetWindowObject(hWndNewOwner);
 
   if (!WndNewOwner && hWndNewOwner)
   {
      EngSetLastError(ERROR_INVALID_PARAMETER);
      ret = NULL;
      goto Error;
   }
 
   /* if parent belongs to a different thread and the window isn't */
   /* top-level, attach the two threads */
   IntProcessOwnerSwap(Wnd, WndNewOwner, WndOldOwner);
 
   if (IntValidateOwnerDepth(Wnd, WndNewOwner))
   {
      WndSetOwner(Wnd, WndNewOwner);
   }
   else
   {
      IntProcessOwnerSwap(Wnd, WndOldOwner, WndNewOwner);
      EngSetLastError(ERROR_INVALID_PARAMETER);
      ret = NULL;
   }
Error:
   UserDereferenceObject(Wnd);
   return ret;
}

Referenced by co_IntSetWindowLongPtr().

IntSetStyle()

ULONG FASTCALL IntSetStyle	(	PWND	pwnd,
		ULONG	set_bits,
		ULONG	clear_bits
	)

Definition at line 145 of file window.c.

{
    ULONG styleOld, styleNew;
    styleOld = pwnd->style;
    styleNew = (pwnd->style | set_bits) & ~clear_bits;
    if (styleNew == styleOld) return styleNew;
    pwnd->style = styleNew;
    if ((styleOld ^ styleNew) & WS_VISIBLE) // State Change.
    {
       if (styleOld & WS_VISIBLE) pwnd->head.pti->cVisWindows--;
       if (styleNew & WS_VISIBLE) pwnd->head.pti->cVisWindows++;
       DceResetActiveDCEs( pwnd );
    }
    return styleOld;
}

Referenced by co_UserCreateWindowEx(), co_UserShowScrollBar(), co_WinPosMinMaximize(), co_WinPosShowWindow(), DefWndDoSizeMove(), IntDefWindowProc(), and IntEnableWindow().

IntSetWindowProc()

static WNDPROC IntSetWindowProc ( PWND  pWnd, WNDPROC  NewWndProc, BOOL  Ansi  )

static

Definition at line 843 of file window.c.

{
   INT i;
   PCALLPROCDATA CallProc;
   PCLS Class;
   WNDPROC Ret, chWndProc = NULL;
 
   // Retrieve previous window proc.
   Ret = IntGetWindowProc(pWnd, Ansi);
 
   Class = pWnd->pcls;
 
   if (IsCallProcHandle(NewWndProc))
   {
      CallProc = UserGetObject(gHandleTable, NewWndProc, TYPE_CALLPROC);
      if (CallProc)
      {  // Reset new WndProc.
         NewWndProc = CallProc->pfnClientPrevious;
         // Reset Ansi from CallProc handle. This is expected with wine "deftest".
         Ansi = !!(CallProc->wType & UserGetCPDU2A);
      }
   }
   // Switch from Client Side call to Server Side call if match. Ref: "deftest".
   for ( i = FNID_FIRST; i <= FNID_SWITCH; i++)
   {
       if (GETPFNCLIENTW(i) == NewWndProc)
       {
          chWndProc = GETPFNSERVER(i);
          break;
       }
       if (GETPFNCLIENTA(i) == NewWndProc)
       {
          chWndProc = GETPFNSERVER(i);
          break;
       }
   }
   // If match, set/reset to Server Side and clear ansi.
   if (chWndProc)
   {
      pWnd->lpfnWndProc = chWndProc;
      pWnd->Unicode = TRUE;
      pWnd->state &= ~WNDS_ANSIWINDOWPROC;
      pWnd->state |= WNDS_SERVERSIDEWINDOWPROC;
   }
   else
   {
      pWnd->Unicode = !Ansi;
      // Handle the state change in here.
      if (Ansi)
         pWnd->state |= WNDS_ANSIWINDOWPROC;
      else
         pWnd->state &= ~WNDS_ANSIWINDOWPROC;
 
      if (pWnd->state & WNDS_SERVERSIDEWINDOWPROC)
         pWnd->state &= ~WNDS_SERVERSIDEWINDOWPROC;
 
      if (!NewWndProc) NewWndProc = pWnd->lpfnWndProc;
 
      if (Class->fnid <= FNID_GHOST && Class->fnid >= FNID_BUTTON)
      {
         if (Ansi)
         {
            if (GETPFNCLIENTW(Class->fnid) == NewWndProc)
               chWndProc = GETPFNCLIENTA(Class->fnid);
         }
         else
         {
            if (GETPFNCLIENTA(Class->fnid) == NewWndProc)
               chWndProc = GETPFNCLIENTW(Class->fnid);
         }
      }
      // Now set the new window proc.
      pWnd->lpfnWndProc = (chWndProc ? chWndProc : NewWndProc);
   }
   return Ret;
}

Referenced by co_IntSetWindowLongPtr().

IntShowOwnedPopups()

BOOL FASTCALL IntShowOwnedPopups	(	PWND	OwnerWnd,
		BOOL	fShow
	)

Definition at line 4654 of file window.c.

{
   int count = 0;
   PWND pWnd;
   HWND *win_array;
 
//   ASSERT(OwnerWnd);
 
   TRACE("Enter ShowOwnedPopups Show: %s\n", (fShow ? "TRUE" : "FALSE"));
 
   /* NOTE: Popups are not children */
   win_array = IntWinListOwnedPopups(OwnerWnd);
 
   if (!win_array)
      return TRUE;
 
   while (win_array[count])
      count++;
   while (--count >= 0)
   {
      if (!(pWnd = ValidateHwndNoErr( win_array[count] )))
         continue;
      ASSERT(pWnd->spwndOwner == OwnerWnd);
 
      if (fShow)
      {
         if (pWnd->state & WNDS_HIDDENPOPUP)
         {
            /* In Windows, ShowOwnedPopups(TRUE) generates
             * WM_SHOWWINDOW messages with SW_PARENTOPENING,
             * regardless of the state of the owner
             */
            co_IntSendMessage(win_array[count], WM_SHOWWINDOW, SW_SHOWNORMAL, SW_PARENTOPENING);
            pWnd->state &= ~WNDS_HIDDENPOPUP;
            continue;
         }
      }
      else
      {
         if (pWnd->style & WS_VISIBLE)
         {
            /* In Windows, ShowOwnedPopups(FALSE) generates
             * WM_SHOWWINDOW messages with SW_PARENTCLOSING,
             * regardless of the state of the owner
             */
            co_IntSendMessage(win_array[count], WM_SHOWWINDOW, SW_HIDE, SW_PARENTCLOSING);
            pWnd->state |= WNDS_HIDDENPOPUP;
            continue;
         }
      }
   }
   ExFreePoolWithTag(win_array, USERTAG_WINDOWLIST);
   TRACE("Leave ShowOwnedPopups\n");
   return TRUE;
}

Referenced by co_WinPosMinMaximize(), co_WinPosShowWindow(), DefWndHandleSysCommand(), and NtUserCallTwoParam().

IntUnlinkWindow()

VOID FASTCALL IntUnlinkWindow

(

PWND

Wnd

)

Definition at line 1357 of file window.c.

{
    ASSERT(Wnd != Wnd->spwndNext);
    ASSERT(Wnd != Wnd->spwndPrev);
 
    if (Wnd->spwndNext)
        WndSetPrev(Wnd->spwndNext, Wnd->spwndPrev);
 
    if (Wnd->spwndPrev)
        WndSetNext(Wnd->spwndPrev, Wnd->spwndNext);
 
    if (Wnd->spwndParent && Wnd->spwndParent->spwndChild == Wnd)
        WndSetChild(Wnd->spwndParent, Wnd->spwndNext);
 
    WndSetPrev(Wnd, NULL);
    WndSetNext(Wnd, NULL);
}

Referenced by co_IntSetParent(), co_UserFreeWindow(), IntImeSetTopMost(), and IntLinkHwnd().

IntValidateOwnerDepth()

BOOL FASTCALL IntValidateOwnerDepth	(	PWND	Wnd,
		PWND	Owner
	)

Definition at line 369 of file window.c.

{
   INT Depth = 1;
   for (;;)
   {
      if ( !Owner ) return gNestedWindowLimit >= Depth;
      if (Owner == Wnd) break;
      Owner = Owner->spwndOwner;
      Depth++;
   }
   return FALSE;
}

Referenced by IntCreateWindow(), and IntSetOwner().

IntWinListChildren()

HWND *FASTCALL IntWinListChildren

(

PWND

Window

)

Definition at line 276 of file window.c.

{
    PWND Child;
    HWND *List;
    UINT Index, NumChildren = 0;
 
    if (!Window) return NULL;
 
    for (Child = Window->spwndChild; Child; Child = Child->spwndNext)
    {
        ++NumChildren;
    }
 
    List = ExAllocatePoolWithTag(PagedPool, (NumChildren + 1) * sizeof(HWND), USERTAG_WINDOWLIST);
    if(!List)
    {
        ERR("Failed to allocate memory for children array\n");
        EngSetLastError(ERROR_NOT_ENOUGH_MEMORY);
        return NULL;
    }
 
    Index = 0;
    for (Child = Window->spwndChild; Child; Child = Child->spwndNext)
    {
        List[Index++] = UserHMGetHandle(Child);
    }
    List[Index] = NULL;
 
    return List;
}

Referenced by co_IntPaintWindows(), co_IntSendActivateMessages(), co_IntSendMessageTimeout(), co_UserFreeWindow(), co_WinPosSearchChildren(), IntChildWindowFromPointEx(), IntClientShutdown(), IntDeactivateWindow(), IntFindWindow(), IntRealChildWindowFromPoint(), IntSendDestroyMsg(), NtUserBuildHwndList(), NtUserFindWindowEx(), NtUserMessageCall(), SpiNotifyNCMetricsChanged(), UserPostMessage(), UserRegisterUserApiHook(), UserSendNotifyMessage(), and WinPosDoOwnedPopups().

IntWinListOwnedPopups()

HWND *FASTCALL IntWinListOwnedPopups

(

PWND

Window

)

Definition at line 317 of file window.c.

{
    PWND Child, Desktop;
    HWND *List;
    UINT Index, NumOwned = 0;
 
    Desktop = co_GetDesktopWindow(Window);
    if (!Desktop)
        return NULL;
 
    for (Child = Desktop->spwndChild; Child; Child = Child->spwndNext)
    {
        if (Child->spwndOwner == Window && !IntWndIsDefaultIme(Child))
            ++NumOwned;
    }
 
    List = ExAllocatePoolWithTag(PagedPool, (NumOwned + 1) * sizeof(HWND), USERTAG_WINDOWLIST);
    if (!List)
    {
        ERR("Failed to allocate memory for children array\n");
        EngSetLastError(ERROR_NOT_ENOUGH_MEMORY);
        return NULL;
    }
 
    Index = 0;
    for (Child = Desktop->spwndChild; Child; Child = Child->spwndNext)
    {
        if (Child->spwndOwner == Window && !IntWndIsDefaultIme(Child))
            List[Index++] = UserHMGetHandle(Child);
    }
    List[Index] = NULL;
 
    return List;
}

Referenced by IntDestroyOwnedWindows(), and IntShowOwnedPopups().

IntWndIsDefaultIme()

static BOOL IntWndIsDefaultIme ( _In_ PWND  Window )

static

Definition at line 308 of file window.c.

{
    PTHREADINFO pti = Window->head.pti;
 
    return (IS_IMM_MODE() && !(pti->TIF_flags & TIF_INCLEANUP) &&
            Window == pti->spwndDefaultIme);
}

Referenced by IntWinListOwnedPopups().

NtUserAlterWindowStyle()

DWORD APIENTRY NtUserAlterWindowStyle	(	HWND	hWnd,
		DWORD	Index,
		LONG	NewValue
	)

Definition at line 4092 of file window.c.

{
   LONG ret;
 
   UserEnterExclusive();
 
   if (hWnd == IntGetDesktopWindow())
   {
      EngSetLastError(STATUS_ACCESS_DENIED);
      UserLeave();
      return 0;
   }
 
   ret = co_IntSetWindowLongPtr(hWnd, Index, NewValue, FALSE, sizeof(LONG), TRUE);
 
   UserLeave();
 
   return ret;
}

Referenced by ButtonWndProc_common().

NtUserBuildHwndList()

NTSTATUS NTAPI NtUserBuildHwndList	(	HDESK	hDesktop,
		HWND	hwndParent,
		BOOLEAN	bChildren,
		ULONG	dwThreadId,
		ULONG	cHwnd,
		HWND *	phwndList,
		ULONG *	pcHwndNeeded
	)

Definition at line 1521 of file window.c.

{
   NTSTATUS Status;
   ULONG dwCount = 0;
 
   if (pcHwndNeeded == NULL)
       return STATUS_INVALID_PARAMETER;
 
   UserEnterExclusive();
 
   if (hwndParent || !dwThreadId)
   {
      PDESKTOP Desktop;
      PWND Parent, Window;
 
      if(!hwndParent)
      {
         if(hDesktop == NULL && !(Desktop = IntGetActiveDesktop()))
         {
            Status = STATUS_INVALID_HANDLE;
            goto Quit;
         }
 
         if(hDesktop)
         {
            Status = IntValidateDesktopHandle(hDesktop,
                                              UserMode,
                                              0,
                                              &Desktop);
            if(!NT_SUCCESS(Status))
            {
                Status = STATUS_INVALID_HANDLE;
                goto Quit;
            }
         }
         hwndParent = Desktop->DesktopWindow;
      }
      else
      {
         hDesktop = 0;
      }
 
      if((Parent = UserGetWindowObject(hwndParent)) &&
         (Window = Parent->spwndChild))
      {
         BOOL bGoDown = TRUE;
 
         Status = STATUS_SUCCESS;
         while(TRUE)
         {
            if (bGoDown)
            {
               if (dwCount++ < cHwnd && phwndList)
               {
                  _SEH2_TRY
                  {
                     ProbeForWrite(phwndList, sizeof(HWND), 1);
                     *phwndList = UserHMGetHandle(Window);
                     phwndList++;
                  }
                  _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
                  {
                     Status = _SEH2_GetExceptionCode();
                  }
                  _SEH2_END
                  if(!NT_SUCCESS(Status))
                  {
                     break;
                  }
               }
               if (Window->spwndChild && bChildren)
               {
                  Window = Window->spwndChild;
                  continue;
               }
               bGoDown = FALSE;
            }
            if (Window->spwndNext)
            {
               Window = Window->spwndNext;
               bGoDown = TRUE;
               continue;
            }
            Window = Window->spwndParent;
            if (Window == Parent)
            {
               break;
            }
         }
      }
 
      if(hDesktop)
      {
         ObDereferenceObject(Desktop);
      }
   }
   else // Build EnumThreadWindows list!
   {
      PETHREAD Thread;
      PTHREADINFO W32Thread;
      PWND Window;
      HWND *List = NULL;
 
      Status = PsLookupThreadByThreadId(UlongToHandle(dwThreadId), &Thread);
      if (!NT_SUCCESS(Status))
      {
         ERR("Thread Id is not valid!\n");
         Status = STATUS_INVALID_PARAMETER;
         goto Quit;
      }
      if (!(W32Thread = (PTHREADINFO)Thread->Tcb.Win32Thread))
      {
         ObDereferenceObject(Thread);
         TRACE("Tried to enumerate windows of a non gui thread\n");
         Status = STATUS_INVALID_PARAMETER;
         goto Quit;
      }
 
     // Do not use Thread link list due to co_UserFreeWindow!!!
     // Current = W32Thread->WindowListHead.Flink;
     // Fixes Api:CreateWindowEx tests!!!
      List = IntWinListChildren(UserGetDesktopWindow());
      if (List)
      {
         int i;
         for (i = 0; List[i]; i++)
         {
            Window = ValidateHwndNoErr(List[i]);
            if (Window && Window->head.pti == W32Thread)
            {
               if (dwCount < cHwnd && phwndList)
               {
                  _SEH2_TRY
                  {
                     ProbeForWrite(phwndList, sizeof(HWND), 1);
                     *phwndList = UserHMGetHandle(Window);
                     phwndList++;
                  }
                  _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
                  {
                     Status = _SEH2_GetExceptionCode();
                  }
                  _SEH2_END
                  if (!NT_SUCCESS(Status))
                  {
                     ERR("Failure to build window list!\n");
                     break;
                  }
               }
               dwCount++;
            }
         }
         ExFreePoolWithTag(List, USERTAG_WINDOWLIST);
      }
 
      ObDereferenceObject(Thread);
   }
 
   *pcHwndNeeded = dwCount;
   Status = STATUS_SUCCESS;
 
Quit:
   SetLastNtError(Status);
   UserLeave();
   return Status;
}

Referenced by User32EnumWindows(), and WIN_ListChildren().

NtUserCreateWindowEx()

HWND NTAPI NtUserCreateWindowEx	(	DWORD	dwExStyle,
		PLARGE_STRING	plstrClassName,
		PLARGE_STRING	plstrClsVersion,
		PLARGE_STRING	plstrWindowName,
		DWORD	dwStyle,
		int	x,
		int	y,
		int	nWidth,
		int	nHeight,
		HWND	hWndParent,
		HMENU	hMenu,
		HINSTANCE	hInstance,
		LPVOID	lpParam,
		DWORD	dwFlags,
		PVOID	acbiBuffer
	)

Todo:

Allow passing plstrClassName as ANSI.

Definition at line 2669 of file window.c.

{
    NTSTATUS Status;
    LARGE_STRING lstrWindowName;
    LARGE_STRING lstrClassName;
    LARGE_STRING lstrClsVersion;
    UNICODE_STRING ustrClassName;
    UNICODE_STRING ustrClsVersion;
    CREATESTRUCTW Cs;
    HWND hwnd = NULL;
    PWND pwnd;
 
    lstrWindowName.Buffer = NULL;
    lstrClassName.Buffer = NULL;
    lstrClsVersion.Buffer = NULL;
 
    if ( (dwStyle & (WS_POPUP|WS_CHILD)) != WS_CHILD)
    {
        /* check hMenu is valid handle */
        if (hMenu && !UserGetMenuObject(hMenu))
        {
            ERR("NtUserCreateWindowEx: Got an invalid menu handle!\n");
            EngSetLastError(ERROR_INVALID_MENU_HANDLE);
            return NULL;
        }
    }
 
    /* Copy the window name to kernel mode */
    Status = ProbeAndCaptureLargeString(&lstrWindowName, plstrWindowName);
    if (!NT_SUCCESS(Status))
    {
        ERR("NtUserCreateWindowEx: failed to capture plstrWindowName\n");
        SetLastNtError(Status);
        return NULL;
    }
 
    plstrWindowName = &lstrWindowName;
 
    /* Check if the class is an atom */
    if (IS_ATOM(plstrClassName))
    {
        /* It is, pass the atom in the UNICODE_STRING */
        ustrClassName.Buffer = (PVOID)plstrClassName;
        ustrClassName.Length = 0;
        ustrClassName.MaximumLength = 0;
    }
    else
    {
        /* It's not, capture the class name */
        Status = ProbeAndCaptureLargeString(&lstrClassName, plstrClassName);
        if (!NT_SUCCESS(Status))
        {
            ERR("NtUserCreateWindowEx: failed to capture plstrClassName\n");
            /* Set last error, cleanup and return */
            SetLastNtError(Status);
            goto cleanup;
        }
 
        /* We pass it on as a UNICODE_STRING */
        ustrClassName.Buffer = lstrClassName.Buffer;
        ustrClassName.Length = (USHORT)min(lstrClassName.Length, MAXUSHORT); // FIXME: LARGE_STRING truncated
        ustrClassName.MaximumLength = (USHORT)min(lstrClassName.MaximumLength, MAXUSHORT);
    }
 
    /* Check if the class version is an atom */
    if (IS_ATOM(plstrClsVersion))
    {
        /* It is, pass the atom in the UNICODE_STRING */
        ustrClsVersion.Buffer = (PVOID)plstrClsVersion;
        ustrClsVersion.Length = 0;
        ustrClsVersion.MaximumLength = 0;
    }
    else
    {
        /* It's not, capture the class name */
        Status = ProbeAndCaptureLargeString(&lstrClsVersion, plstrClsVersion);
        if (!NT_SUCCESS(Status))
        {
            ERR("NtUserCreateWindowEx: failed to capture plstrClsVersion\n");
            /* Set last error, cleanup and return */
            SetLastNtError(Status);
            goto cleanup;
        }
 
        /* We pass it on as a UNICODE_STRING */
        ustrClsVersion.Buffer = lstrClsVersion.Buffer;
        ustrClsVersion.Length = (USHORT)min(lstrClsVersion.Length, MAXUSHORT); // FIXME: LARGE_STRING truncated
        ustrClsVersion.MaximumLength = (USHORT)min(lstrClsVersion.MaximumLength, MAXUSHORT);
    }
 
    /* Fill the CREATESTRUCTW */
    /* we will keep here the original parameters */
    Cs.style = dwStyle;
    Cs.lpCreateParams = lpParam;
    Cs.hInstance = hInstance;
    Cs.hMenu = hMenu;
    Cs.hwndParent = hWndParent;
    Cs.cx = nWidth;
    Cs.cy = nHeight;
    Cs.x = x;
    Cs.y = y;
    Cs.lpszName = (LPCWSTR) plstrWindowName->Buffer;
    Cs.lpszClass = ustrClassName.Buffer;
    Cs.dwExStyle = dwExStyle;
 
    UserEnterExclusive();
 
    /* Call the internal function */
    pwnd = co_UserCreateWindowEx(&Cs, &ustrClsVersion, plstrWindowName, acbiBuffer, dwFlags);
 
    if(!pwnd)
    {
        ERR("co_UserCreateWindowEx failed!\n");
    }
    hwnd = pwnd ? UserHMGetHandle(pwnd) : NULL;
 
    UserLeave();
 
cleanup:
    if (lstrWindowName.Buffer)
    {
        ExFreePoolWithTag(lstrWindowName.Buffer, TAG_STRING);
    }
    if (lstrClassName.Buffer)
    {
        ExFreePoolWithTag(lstrClassName.Buffer, TAG_STRING);
    }
    if (lstrClsVersion.Buffer)
    {
        ExFreePoolWithTag(lstrClsVersion.Buffer, TAG_STRING);
    }
 
   return hwnd;
}

Referenced by CreateWnd(), and User32CreateWindowEx().

NtUserDefSetText()

BOOL APIENTRY NtUserDefSetText	(	HWND	hWnd,
		PLARGE_STRING	WindowText
	)

Definition at line 4458 of file window.c.

{
   PWND Wnd;
   LARGE_STRING SafeText;
   UNICODE_STRING UnicodeString;
   BOOL Ret = TRUE;
 
   TRACE("Enter NtUserDefSetText\n");
 
   if (WindowText != NULL)
   {
      _SEH2_TRY
      {
         SafeText = ProbeForReadLargeString(WindowText);
      }
      _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
      {
         Ret = FALSE;
         SetLastNtError(_SEH2_GetExceptionCode());
      }
      _SEH2_END;
 
      if (!Ret)
         return FALSE;
   }
   else
      return TRUE;
 
   UserEnterExclusive();
 
   if(!(Wnd = UserGetWindowObject(hWnd)))
   {
      UserLeave();
      return FALSE;
   }
 
   // ReactOS uses Unicode and not mixed. Up/Down converting will take time.
   // Brought to you by: The Wine Project! Dysfunctional Thought Processes!
   // Now we know what the bAnsi is for.
   RtlInitUnicodeString(&UnicodeString, NULL);
   if (SafeText.Buffer)
   {
      _SEH2_TRY
      {
         if (SafeText.bAnsi)
            ProbeForRead(SafeText.Buffer, SafeText.Length, sizeof(CHAR));
         else
            ProbeForRead(SafeText.Buffer, SafeText.Length, sizeof(WCHAR));
         Ret = RtlLargeStringToUnicodeString(&UnicodeString, &SafeText);
      }
      _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
      {
         Ret = FALSE;
         SetLastNtError(_SEH2_GetExceptionCode());
      }
      _SEH2_END;
      if (!Ret) goto Exit;
   }
 
   if (UnicodeString.Length != 0)
   {
      if (Wnd->strName.MaximumLength > 0 &&
          UnicodeString.Length <= Wnd->strName.MaximumLength - sizeof(UNICODE_NULL))
      {
         ASSERT(Wnd->strName.Buffer != NULL);
 
         Wnd->strName.Length = UnicodeString.Length;
         Wnd->strName.Buffer[UnicodeString.Length / sizeof(WCHAR)] = L'\0';
         RtlCopyMemory(Wnd->strName.Buffer,
                              UnicodeString.Buffer,
                              UnicodeString.Length);
      }
      else
      {
         PWCHAR buf;
         Wnd->strName.MaximumLength = Wnd->strName.Length = 0;
         buf = Wnd->strName.Buffer;
         Wnd->strName.Buffer = NULL;
         if (buf != NULL)
         {
            DesktopHeapFree(Wnd->head.rpdesk, buf);
         }
 
         Wnd->strName.Buffer = DesktopHeapAlloc(Wnd->head.rpdesk,
                                                   UnicodeString.Length + sizeof(UNICODE_NULL));
         if (Wnd->strName.Buffer != NULL)
         {
            Wnd->strName.Buffer[UnicodeString.Length / sizeof(WCHAR)] = L'\0';
            RtlCopyMemory(Wnd->strName.Buffer,
                                 UnicodeString.Buffer,
                                 UnicodeString.Length);
            Wnd->strName.MaximumLength = UnicodeString.Length + sizeof(UNICODE_NULL);
            Wnd->strName.Length = UnicodeString.Length;
         }
         else
         {
            EngSetLastError(ERROR_NOT_ENOUGH_MEMORY);
            Ret = FALSE;
            goto Exit;
         }
      }
   }
   else
   {
      Wnd->strName.Length = 0;
      if (Wnd->strName.Buffer != NULL)
          Wnd->strName.Buffer[0] = L'\0';
   }
 
   // FIXME: HAX! Windows does not do this in here!
   // In User32, these are called after: NotifyWinEvent EVENT_OBJECT_NAMECHANGE than
   // RepaintButton, StaticRepaint, NtUserCallHwndLock HWNDLOCK_ROUTINE_REDRAWFRAMEANDHOOK, etc.
   /* Send shell notifications */
   if (!Wnd->spwndOwner && !IntGetParent(Wnd))
   {
      co_IntShellHookNotify(HSHELL_REDRAW, (WPARAM) hWnd, FALSE); // FIXME Flashing?
   }
 
   Ret = TRUE;
Exit:
   if (UnicodeString.Buffer) RtlFreeUnicodeString(&UnicodeString);
   TRACE("Leave NtUserDefSetText, ret=%i\n", Ret);
   UserLeave();
   return Ret;
}

Referenced by DefSetText().

NtUserDestroyWindow()

BOOLEAN APIENTRY NtUserDestroyWindow

(

HWND

Wnd

)

Definition at line 3040 of file window.c.

{
   PWND Window;
   BOOLEAN ret = FALSE;
   USER_REFERENCE_ENTRY Ref;
 
   TRACE("Enter NtUserDestroyWindow\n");
   UserEnterExclusive();
 
   Window = UserGetWindowObject(Wnd);
   if (Window)
   {
      UserRefObjectCo(Window, &Ref); // FIXME: Dunno if win should be reffed during destroy...
      ret = co_UserDestroyWindow(Window);
      UserDerefObjectCo(Window); // FIXME: Dunno if win should be reffed during destroy...
   }
 
   TRACE("Leave NtUserDestroyWindow, ret=%u\n", ret);
   UserLeave();
   return ret;
}

Referenced by DestroyWindow(), and User32DestroyImeUIWindow().

NtUserFindWindowEx()

HWND APIENTRY NtUserFindWindowEx	(	HWND	hwndParent,
		HWND	hwndChildAfter,
		PUNICODE_STRING	ucClassName,
		PUNICODE_STRING	ucWindowName,
		DWORD	dwUnknown
	)

Definition at line 3146 of file window.c.

{
   PWND Parent, ChildAfter;
   UNICODE_STRING ClassName = {0}, WindowName = {0};
   HWND Desktop, Ret = NULL;
   BOOL DoMessageWnd = FALSE;
   RTL_ATOM ClassAtom = (RTL_ATOM)0;
 
   TRACE("Enter NtUserFindWindowEx\n");
   UserEnterShared();
 
   if (ucClassName != NULL || ucWindowName != NULL)
   {
       _SEH2_TRY
       {
           if (ucClassName != NULL)
           {
               ClassName = ProbeForReadUnicodeString(ucClassName);
               if (ClassName.Length != 0)
               {
                   ProbeForRead(ClassName.Buffer,
                                ClassName.Length,
                                sizeof(WCHAR));
               }
               else if (!IS_ATOM(ClassName.Buffer))
               {
                   EngSetLastError(ERROR_INVALID_PARAMETER);
                   _SEH2_LEAVE;
               }
 
               if (!IntGetAtomFromStringOrAtom(&ClassName,
                                               &ClassAtom))
               {
                   EngSetLastError(ERROR_CANNOT_FIND_WND_CLASS);
                   _SEH2_LEAVE;
               }
           }
 
           if (ucWindowName != NULL)
           {
               WindowName = ProbeForReadUnicodeString(ucWindowName);
               if (WindowName.Length != 0)
               {
                   ProbeForRead(WindowName.Buffer,
                                WindowName.Length,
                                sizeof(WCHAR));
               }
           }
       }
       _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
       {
           SetLastNtError(_SEH2_GetExceptionCode());
           _SEH2_YIELD(goto Exit); // Return NULL
       }
       _SEH2_END;
 
       if (ucClassName != NULL)
       {
           if (ClassName.Length == 0 && ClassName.Buffer != NULL &&
               !IS_ATOM(ClassName.Buffer))
           {
               EngSetLastError(ERROR_INVALID_PARAMETER);
               goto Exit; // Return NULL
           }
           else if (ClassAtom == (RTL_ATOM)0)
           {
               /* LastError code was set by IntGetAtomFromStringOrAtom */
               goto Exit; // Return NULL
           }
       }
   }
 
   Desktop = IntGetCurrentThreadDesktopWindow();
 
   if(hwndParent == NULL)
   {
      hwndParent = Desktop;
      DoMessageWnd = TRUE;
   }
   else if(hwndParent == HWND_MESSAGE)
   {
     hwndParent = IntGetMessageWindow();
   }
 
   if(!(Parent = UserGetWindowObject(hwndParent)))
   {
      goto Exit; // Return NULL
   }
 
   ChildAfter = NULL;
   if(hwndChildAfter && !(ChildAfter = UserGetWindowObject(hwndChildAfter)))
   {
      goto Exit; // Return NULL
   }
 
   _SEH2_TRY
   {
       if(UserHMGetHandle(Parent) == Desktop)
       {
          HWND *List, *phWnd;
          PWND TopLevelWindow;
          BOOLEAN CheckWindowName;
          BOOLEAN WindowMatches;
          BOOLEAN ClassMatches;
 
          /* windows searches through all top-level windows if the parent is the desktop
             window */
 
          if((List = IntWinListChildren(Parent)))
          {
             phWnd = List;
 
             if(ChildAfter)
             {
                /* skip handles before and including ChildAfter */
                while(*phWnd && (*(phWnd++) != UserHMGetHandle(ChildAfter)))
                   ;
             }
 
             CheckWindowName = WindowName.Buffer != 0;
 
             /* search children */
             while(*phWnd)
             {
                 UNICODE_STRING ustr;
 
                if(!(TopLevelWindow = UserGetWindowObject(*(phWnd++))))
                {
                   continue;
                }
 
                /* Do not send WM_GETTEXT messages in the kernel mode version!
                   The user mode version however calls GetWindowText() which will
                   send WM_GETTEXT messages to windows belonging to its processes */
                ustr.Buffer = TopLevelWindow->strName.Buffer;
                ustr.Length = (USHORT)min(TopLevelWindow->strName.Length, MAXUSHORT); // FIXME:LARGE_STRING truncated
                ustr.MaximumLength = (USHORT)min(TopLevelWindow->strName.MaximumLength, MAXUSHORT);
                WindowMatches = !CheckWindowName ||
                                (TopLevelWindow->strName.Length < 0xFFFF &&
                                 !RtlCompareUnicodeString(&WindowName, &ustr, TRUE));
                ClassMatches = (ClassAtom == (RTL_ATOM)0) ||
                               ClassAtom == TopLevelWindow->pcls->atomNVClassName;
 
                if (WindowMatches && ClassMatches)
                {
                   Ret = UserHMGetHandle(TopLevelWindow);
                   break;
                }
 
                if (IntFindWindow(TopLevelWindow, NULL, ClassAtom, &WindowName))
                {
                   /* window returns the handle of the top-level window, in case it found
                      the child window */
                   Ret = UserHMGetHandle(TopLevelWindow);
                   break;
                }
 
             }
             ExFreePoolWithTag(List, USERTAG_WINDOWLIST);
          }
       }
       else
       {
          TRACE("FindWindowEx: Not Desktop Parent!\n");
          Ret = IntFindWindow(Parent, ChildAfter, ClassAtom, &WindowName);
       }
 
       if (Ret == NULL && DoMessageWnd)
       {
          PWND MsgWindows;
 
          if((MsgWindows = UserGetWindowObject(IntGetMessageWindow())))
          {
             Ret = IntFindWindow(MsgWindows, ChildAfter, ClassAtom, &WindowName);
          }
       }
   }
   _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
   {
       SetLastNtError(_SEH2_GetExceptionCode());
       Ret = NULL;
   }
   _SEH2_END;
 
Exit:
   TRACE("Leave NtUserFindWindowEx, ret %p\n", Ret);
   UserLeave();
   return Ret;
}

Referenced by FindWindowExW(), and START_TEST().

NtUserGetAncestor()

HWND APIENTRY NtUserGetAncestor	(	HWND	hWnd,
		UINT	Type
	)

Definition at line 3413 of file window.c.

{
   PWND Window, Ancestor;
   HWND Ret = NULL;
 
   TRACE("Enter NtUserGetAncestor\n");
   UserEnterExclusive();
 
   Window = UserGetWindowObject(hWnd);
   if (Window)
   {
      Ancestor = UserGetAncestor(Window, Type);
      /* fixme: can UserGetAncestor ever return NULL for a valid window? */
 
      Ret = (Ancestor ? UserHMGetHandle(Ancestor) : NULL);
   }
 
   TRACE("Leave NtUserGetAncestor, ret=%p\n", Ret);
   UserLeave();
   return Ret;
}

Referenced by GetAncestor().

NtUserGetComboBoxInfo()

BOOL APIENTRY NtUserGetComboBoxInfo	(	HWND	hWnd,
		PCOMBOBOXINFO	pcbi
	)

Definition at line 3471 of file window.c.

{
   PWND Wnd;
   PPROCESSINFO ppi;
   BOOL NotSameppi = FALSE;
   BOOL Ret = TRUE;
 
   TRACE("Enter NtUserGetComboBoxInfo\n");
   UserEnterShared();
 
   if (!(Wnd = UserGetWindowObject(hWnd)))
   {
      Ret = FALSE;
      goto Exit;
   }
   _SEH2_TRY
   {
        ProbeForWrite(pcbi, sizeof(COMBOBOXINFO), 1);
   }
   _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
   {
       SetLastNtError(_SEH2_GetExceptionCode());
       Ret = FALSE;
       _SEH2_YIELD(goto Exit);
   }
   _SEH2_END;
 
   if (pcbi->cbSize < sizeof(COMBOBOXINFO))
   {
      EngSetLastError(ERROR_INVALID_PARAMETER);
      Ret = FALSE;
      goto Exit;
   }
 
   // Pass the user pointer, it was already probed.
   if ((Wnd->pcls->atomClassName != gpsi->atomSysClass[ICLS_COMBOBOX]) && Wnd->fnid != FNID_COMBOBOX)
   {
      Ret = (BOOL)co_IntSendMessage(UserHMGetHandle(Wnd), CB_GETCOMBOBOXINFO, 0, (LPARAM)pcbi);
      goto Exit;
   }
 
   ppi = PsGetCurrentProcessWin32Process();
   NotSameppi = ppi != Wnd->head.pti->ppi;
   if (NotSameppi)
   {
      KeAttachProcess(&Wnd->head.pti->ppi->peProcess->Pcb);
   }
 
   _SEH2_TRY
   {
      LPHEADCOMBO lphc = ((PWND2CBOX)Wnd)->pCBox;
      pcbi->rcItem = lphc->textRect;
      pcbi->rcButton = lphc->buttonRect;
      pcbi->stateButton = 0;
      if (lphc->wState & CBF_BUTTONDOWN)
         pcbi->stateButton |= STATE_SYSTEM_PRESSED;
      if (RECTL_bIsEmptyRect(&lphc->buttonRect))
         pcbi->stateButton |= STATE_SYSTEM_INVISIBLE;
      pcbi->hwndCombo = lphc->self;
      pcbi->hwndItem = lphc->hWndEdit;
      pcbi->hwndList = lphc->hWndLBox;
   }
   _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
   {
      Ret = FALSE;
      SetLastNtError(_SEH2_GetExceptionCode());
   }
   _SEH2_END;
 
Exit:
   if (NotSameppi) KeDetachProcess();
   TRACE("Leave NtUserGetComboBoxInfo, ret=%i\n", Ret);
   UserLeave();
   return Ret;
}

Referenced by GetComboBoxInfo().

NtUserGetListBoxInfo()

DWORD APIENTRY NtUserGetListBoxInfo

(

HWND

hWnd

)

Definition at line 3582 of file window.c.

{
   PWND Wnd;
   PPROCESSINFO ppi;
   BOOL NotSameppi = FALSE;
   DWORD Ret = 0;
 
   TRACE("Enter NtUserGetListBoxInfo\n");
   UserEnterShared();
 
   if (!(Wnd = UserGetWindowObject(hWnd)))
   {
      goto Exit; // Return 0
   }
 
   if ((Wnd->pcls->atomClassName != gpsi->atomSysClass[ICLS_LISTBOX]) && Wnd->fnid != FNID_LISTBOX)
   {
      Ret = (DWORD)co_IntSendMessage(UserHMGetHandle(Wnd), LB_GETLISTBOXINFO, 0, 0);
      goto Exit;
   }
 
   // wine lisbox:test_GetListBoxInfo lb_getlistboxinfo = 0, should not send a message!
   ppi = PsGetCurrentProcessWin32Process();
   NotSameppi = ppi != Wnd->head.pti->ppi;
   if (NotSameppi)
   {
      KeAttachProcess(&Wnd->head.pti->ppi->peProcess->Pcb);
   }
 
   _SEH2_TRY
   {
      LB_DESCR *descr = ((PWND2LB)Wnd)->pLBiv;
      // See Controls ListBox.c:LB_GETLISTBOXINFO must match...
      Ret = descr->page_size;
   }
   _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
   {
      Ret = 0;
      SetLastNtError(_SEH2_GetExceptionCode());
   }
   _SEH2_END;
 
Exit:
   if (NotSameppi) KeDetachProcess();
   TRACE("Leave NtUserGetListBoxInfo, ret=%lu\n", Ret);
   UserLeave();
   return Ret;
}

Referenced by GetListBoxInfo().

NtUserInternalGetWindowText()

INT APIENTRY NtUserInternalGetWindowText	(	HWND	hWnd,
		LPWSTR	lpString,
		INT	nMaxCount
	)

Definition at line 4592 of file window.c.

{
   PWND Wnd;
   NTSTATUS Status;
   INT Result = 0;
 
   TRACE("Enter NtUserInternalGetWindowText\n");
   UserEnterShared();
 
   if(lpString && (nMaxCount <= 1))
   {
      EngSetLastError(ERROR_INVALID_PARAMETER);
      goto Exit; // Return 0
   }
 
   if(!(Wnd = UserGetWindowObject(hWnd)))
   {
      goto Exit; // Return 0
   }
 
   Result = Wnd->strName.Length / sizeof(WCHAR);
   if(lpString)
   {
      const WCHAR Terminator = L'\0';
      INT Copy;
      WCHAR *Buffer = (WCHAR*)lpString;
 
      Copy = min(nMaxCount - 1, Result);
      if(Copy > 0)
      {
         Status = MmCopyToCaller(Buffer, Wnd->strName.Buffer, Copy * sizeof(WCHAR));
         if(!NT_SUCCESS(Status))
         {
            SetLastNtError(Status);
            Result = 0;
            goto Exit;
         }
         Buffer += Copy;
      }
 
      Status = MmCopyToCaller(Buffer, &Terminator, sizeof(WCHAR));
      if(!NT_SUCCESS(Status))
      {
         SetLastNtError(Status);
         Result = 0;
         goto Exit;
      }
 
      Result = Copy;
   }
 
Exit:
   TRACE("Leave NtUserInternalGetWindowText, ret=%i\n", Result);
   UserLeave();
   return Result;
}

Referenced by InternalGetWindowText().

NtUserQueryWindow()

DWORD_PTR APIENTRY NtUserQueryWindow	(	HWND	hWnd,
		DWORD	Index
	)

Definition at line 4194 of file window.c.

{
/* Console Leader Process CID Window offsets */
#define GWLP_CONSOLE_LEADER_PID 0
#define GWLP_CONSOLE_LEADER_TID 4
 
   DWORD_PTR Result = 0;
   PWND pWnd, pwndActive;
   PTHREADINFO pti, ptiActive;
 
   TRACE("Enter NtUserQueryWindow\n");
   UserEnterShared();
 
   if (!(pWnd = UserGetWindowObject(hWnd)))
   {
      goto Exit; // Return 0
   }
 
   switch(Index)
   {
      case QUERY_WINDOW_UNIQUE_PROCESS_ID:
      {
         if ( (pWnd->head.pti->TIF_flags & TIF_CSRSSTHREAD) &&
              (pWnd->pcls->atomClassName == gaGuiConsoleWndClass) )
         {
            // IntGetWindowLong(offset == GWLP_CONSOLE_LEADER_PID)
            Result = (DWORD_PTR)(*((LONG_PTR*)((PCHAR)(pWnd + 1) + GWLP_CONSOLE_LEADER_PID)));
         }
         else
         {
            Result = (DWORD_PTR)IntGetWndProcessId(pWnd);
         }
         break;
      }
 
      case QUERY_WINDOW_UNIQUE_THREAD_ID:
      {
         if ( (pWnd->head.pti->TIF_flags & TIF_CSRSSTHREAD) &&
              (pWnd->pcls->atomClassName == gaGuiConsoleWndClass) )
         {
            // IntGetWindowLong(offset == GWLP_CONSOLE_LEADER_TID)
            Result = (DWORD_PTR)(*((LONG_PTR*)((PCHAR)(pWnd + 1) + GWLP_CONSOLE_LEADER_TID)));
         }
         else
         {
            Result = (DWORD_PTR)IntGetWndThreadId(pWnd);
         }
         break;
      }
 
      case QUERY_WINDOW_ACTIVE:
         Result = (DWORD_PTR)(pWnd->head.pti->MessageQueue->spwndActive ? UserHMGetHandle(pWnd->head.pti->MessageQueue->spwndActive) : 0);
         break;
 
      case QUERY_WINDOW_FOCUS:
         Result = (DWORD_PTR)(pWnd->head.pti->MessageQueue->spwndFocus ? UserHMGetHandle(pWnd->head.pti->MessageQueue->spwndFocus) : 0);
         break;
 
      case QUERY_WINDOW_ISHUNG:
         Result = (pWnd->fnid == FNID_GHOST) || MsqIsHung(pWnd->head.pti, MSQ_HUNG);
         break;
 
      case QUERY_WINDOW_REAL_ID:
         Result = (DWORD_PTR)pWnd->head.pti->pEThread->Cid.UniqueProcess;
         break;
 
      case QUERY_WINDOW_FOREGROUND:
         Result = (pWnd->head.pti->MessageQueue == gpqForeground);
         break;
 
      case QUERY_WINDOW_DEFAULT_IME: /* default IME window */
         if (pWnd->head.pti->spwndDefaultIme)
            Result = (DWORD_PTR)UserHMGetHandle(pWnd->head.pti->spwndDefaultIme);
         break;
 
      case QUERY_WINDOW_DEFAULT_ICONTEXT: /* default input context handle */
         if (pWnd->head.pti->spDefaultImc)
            Result = (DWORD_PTR)UserHMGetHandle(pWnd->head.pti->spDefaultImc);
         break;
 
      case QUERY_WINDOW_ACTIVE_IME:
         if (gpqForeground && gpqForeground->spwndActive)
         {
             pwndActive = gpqForeground->spwndActive;
             pti = PsGetCurrentThreadWin32Thread();
             if (pti->rpdesk == pwndActive->head.rpdesk)
             {
                ptiActive = pwndActive->head.pti;
                if (ptiActive->spwndDefaultIme)
                   Result = (DWORD_PTR)UserHMGetHandle(ptiActive->spwndDefaultIme);
             }
         }
         break;
   }
 
Exit:
   TRACE("Leave NtUserQueryWindow, ret=%u\n", Result);
   UserLeave();
   return Result;
}

Referenced by DIALOG_CreateIndirect(), GetRealWindowOwner(), GetWindowThreadProcessId(), ImeWnd_OnImeSetContext(), Imm32IsCrossProcessAccess(), ImmAssociateContext(), ImmAssociateContextEx(), ImmGetDefaultIMEWnd(), ImmGetSaveContext(), IsHungAppWindow(), PostMessageA(), PostMessageW(), TestWindowProcess(), and UserPaintCaption().

NtUserRegisterWindowMessage()

UINT APIENTRY NtUserRegisterWindowMessage

(

PUNICODE_STRING

MessageNameUnsafe

)

Definition at line 4299 of file window.c.

{
   UNICODE_STRING SafeMessageName;
   NTSTATUS Status;
   UINT Ret = 0;
 
   TRACE("Enter NtUserRegisterWindowMessage\n");
   UserEnterExclusive();
 
   if(MessageNameUnsafe == NULL)
   {
      EngSetLastError(ERROR_INVALID_PARAMETER);
      goto Exit; // Return 0
   }
 
   Status = IntSafeCopyUnicodeStringTerminateNULL(&SafeMessageName, MessageNameUnsafe);
   if(!NT_SUCCESS(Status))
   {
      SetLastNtError(Status);
      goto Exit; // Return 0
   }
 
   Ret = (UINT)IntAddAtom(SafeMessageName.Buffer);
   if (SafeMessageName.Buffer)
      ExFreePoolWithTag(SafeMessageName.Buffer, TAG_STRING);
 
Exit:
   TRACE("Leave NtUserRegisterWindowMessage, ret=%u\n", Ret);
   UserLeave();
   return Ret;
}

Referenced by RegisterClipboardFormatA(), RegisterClipboardFormatW(), RegisterWindowMessageA(), and RegisterWindowMessageW().

NtUserSetParent()

HWND APIENTRY NtUserSetParent	(	HWND	hWndChild,
		HWND	hWndNewParent
	)

Definition at line 3650 of file window.c.

{
   HWND Ret;
 
   TRACE("Enter NtUserSetParent\n");
   UserEnterExclusive();
 
   /*
      Check Parent first from user space, set it here.
    */
   if (!hWndNewParent)
   {
      hWndNewParent = IntGetDesktopWindow();
   }
   else if (hWndNewParent == HWND_MESSAGE)
   {
      hWndNewParent = IntGetMessageWindow();
   }
 
   Ret = co_UserSetParent(hWndChild, hWndNewParent);
 
   TRACE("Leave NtUserSetParent, ret=%p\n", Ret);
   UserLeave();
   return Ret;
}

Referenced by SetParent().

NtUserSetShellWindowEx()

BOOL APIENTRY NtUserSetShellWindowEx	(	HWND	hwndShell,
		HWND	hwndListView
	)

Definition at line 3717 of file window.c.

{
   PWINSTATION_OBJECT WinStaObject;
   PWND WndShell, WndListView;
   BOOL Ret = FALSE;
   USER_REFERENCE_ENTRY Ref;
   NTSTATUS Status;
   PTHREADINFO ti;
 
   TRACE("Enter NtUserSetShellWindowEx\n");
   UserEnterExclusive();
 
   if (!(WndShell = UserGetWindowObject(hwndShell)))
   {
      goto Exit; // Return FALSE
   }
 
   if (!(WndListView = UserGetWindowObject(hwndListView)))
   {
      goto Exit; // Return FALSE
   }
 
   Status = IntValidateWindowStationHandle(PsGetCurrentProcess()->Win32WindowStation,
                     UserMode,
                     0,
                     &WinStaObject,
                     0);
 
   if (!NT_SUCCESS(Status))
   {
      SetLastNtError(Status);
      goto Exit; // Return FALSE
   }
 
   /*
    * Test if we are permitted to change the shell window.
    */
   if (WinStaObject->ShellWindow)
   {
      ObDereferenceObject(WinStaObject);
      goto Exit; // Return FALSE
   }
 
   /*
    * Move shell window into background.
    */
   if (hwndListView && hwndListView != hwndShell)
   {
      /*
       * Disabled for now to get Explorer working.
       * -- Filip, 01/nov/2003
       */
#if 0
      co_WinPosSetWindowPos(WndListView, HWND_BOTTOM, 0, 0, 0, 0, SWP_NOMOVE|SWP_NOSIZE|SWP_NOACTIVATE);
#endif
 
      if (WndListView->ExStyle & WS_EX_TOPMOST)
      {
         ObDereferenceObject(WinStaObject);
         goto Exit; // Return FALSE
      }
   }
 
   if (WndShell->ExStyle & WS_EX_TOPMOST)
   {
      ObDereferenceObject(WinStaObject);
      goto Exit; // Return FALSE
   }
 
   UserRefObjectCo(WndShell, &Ref);
   WndShell->state2 |= WNDS2_BOTTOMMOST;
   co_WinPosSetWindowPos(WndShell, HWND_BOTTOM, 0, 0, 0, 0, SWP_NOMOVE|SWP_NOSIZE|SWP_NOACTIVATE);
 
   WinStaObject->ShellWindow = hwndShell;
   WinStaObject->ShellListView = hwndListView;
 
   ti = GetW32ThreadInfo();
   if (ti->pDeskInfo)
   {
       ti->pDeskInfo->hShellWindow = hwndShell;
       ti->pDeskInfo->spwndShell = WndShell;
       ti->pDeskInfo->spwndBkGnd = WndListView;
       ti->pDeskInfo->ppiShellProcess = ti->ppi;
   }
 
   UserRegisterHotKey(WndShell, SC_TASKLIST, MOD_CONTROL, VK_ESCAPE);
 
   UserDerefObjectCo(WndShell);
 
   ObDereferenceObject(WinStaObject);
   Ret = TRUE;
 
Exit:
   TRACE("Leave NtUserSetShellWindowEx, ret=%i\n", Ret);
   UserLeave();
   return Ret;
}

Referenced by SetShellWindowEx().

NtUserSetWindowFNID()

BOOL APIENTRY NtUserSetWindowFNID	(	HWND	hWnd,
		WORD	fnID
	)

Definition at line 4335 of file window.c.

{
   PWND Wnd;
   BOOL Ret = FALSE;
 
   TRACE("Enter NtUserSetWindowFNID\n");
   UserEnterExclusive();
 
   if (!(Wnd = UserGetWindowObject(hWnd)))
   {
      goto Exit; // Return FALSE
   }
 
   if (Wnd->head.pti->ppi != PsGetCurrentProcessWin32Process())
   {
      EngSetLastError(ERROR_ACCESS_DENIED);
      goto Exit; // Return FALSE
   }
 
   // From user land we only set these.
   if (fnID != FNID_DESTROY)
   {
      /* HACK: The minimum should be FNID_BUTTON, but menu code relies on this */
      if (fnID < FNID_FIRST || fnID > FNID_GHOST ||
          Wnd->fnid != 0)
      {
         EngSetLastError(ERROR_INVALID_PARAMETER);
         goto Exit; // Return FALSE
      }
   }
 
   Wnd->fnid |= fnID;
   Ret = TRUE;
 
Exit:
   TRACE("Leave NtUserSetWindowFNID\n");
   UserLeave();
   return Ret;
}

Referenced by ButtonWndProc_common(), ComboWndProc_common(), EditWndProc_common(), Ghost_OnCreate(), Ghost_OnNCDestroy(), ImeWndProc_common(), ListBoxWndProc_common(), MDIClientWndProc_common(), MsgWindowProc(), ScrollBarWndProc_common(), StaticWndProc_common(), and SwitchWndProc_common().

NtUserSetWindowLong()

LONG APIENTRY NtUserSetWindowLong	(	HWND	hWnd,
		DWORD	Index,
		LONG	NewValue,
		BOOL	Ansi
	)

Definition at line 4048 of file window.c.

{
   LONG ret;
 
   UserEnterExclusive();
 
   if (hWnd == IntGetDesktopWindow())
   {
      EngSetLastError(STATUS_ACCESS_DENIED);
      UserLeave();
      return 0;
   }
 
   ret = (LONG)co_IntSetWindowLongPtr(hWnd, Index, NewValue, Ansi, sizeof(LONG), FALSE);
 
   UserLeave();
 
   return ret;
}

Referenced by SetWindowLongA(), and SetWindowLongW().

NtUserSetWindowWord()

WORD APIENTRY NtUserSetWindowWord	(	HWND	hWnd,
		INT	Index,
		WORD	NewValue
	)

Definition at line 4123 of file window.c.

{
   PWND Window;
   WORD OldValue;
   WORD Ret = 0;
 
   TRACE("Enter NtUserSetWindowWord\n");
   UserEnterExclusive();
 
   if (hWnd == IntGetDesktopWindow())
   {
      EngSetLastError(STATUS_ACCESS_DENIED);
      goto Exit; // Return 0
   }
 
   if (!(Window = UserGetWindowObject(hWnd)))
   {
      goto Exit; // Return 0
   }
 
   switch (Index)
   {
      case GWL_ID:
      case GWL_HINSTANCE:
      case GWL_HWNDPARENT:
         Ret = (WORD)co_UserSetWindowLong(UserHMGetHandle(Window), Index, (UINT)NewValue, TRUE);
         goto Exit;
 
      default:
         if (Index < 0)
         {
            EngSetLastError(ERROR_INVALID_INDEX);
            goto Exit; // Return 0
         }
   }
 
   if ((ULONG)Index > (Window->cbwndExtra - sizeof(WORD)))
   {
      EngSetLastError(ERROR_INVALID_INDEX);
      goto Exit; // Return 0
   }
 
   OldValue = *((WORD *)((PCHAR)(Window + 1) + Index));
   *((WORD *)((PCHAR)(Window + 1) + Index)) = NewValue;
 
   Ret = OldValue;
 
Exit:
   TRACE("Leave NtUserSetWindowWord, ret=%u\n", Ret);
   UserLeave();
   return Ret;
}

Referenced by SetWindowWord().

ProbeAndCaptureLargeString()

NTSTATUS NTAPI ProbeAndCaptureLargeString	(	OUT PLARGE_STRING	plstrSafe,
		IN PLARGE_STRING	plstrUnsafe
	)

Definition at line 2612 of file window.c.

{
    LARGE_STRING lstrTemp;
    PVOID pvBuffer = NULL;
 
    _SEH2_TRY
    {
        /* Probe and copy the string */
        ProbeForRead(plstrUnsafe, sizeof(LARGE_STRING), sizeof(ULONG));
        lstrTemp = *plstrUnsafe;
    }
    _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
    {
        /* Fail */
        _SEH2_YIELD(return _SEH2_GetExceptionCode();)
    }
    _SEH2_END
 
    if (lstrTemp.Length != 0)
    {
        /* Allocate a buffer from paged pool */
        pvBuffer = ExAllocatePoolWithTag(PagedPool, lstrTemp.Length, TAG_STRING);
        if (!pvBuffer)
        {
            return STATUS_NO_MEMORY;
        }
 
        _SEH2_TRY
        {
            /* Probe and copy the buffer */
            ProbeForRead(lstrTemp.Buffer, lstrTemp.Length, sizeof(WCHAR));
            RtlCopyMemory(pvBuffer, lstrTemp.Buffer, lstrTemp.Length);
        }
        _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
        {
            /* Cleanup and fail */
            ExFreePoolWithTag(pvBuffer, TAG_STRING);
            _SEH2_YIELD(return _SEH2_GetExceptionCode();)
        }
        _SEH2_END
    }
 
    /* Set the output string */
    plstrSafe->Buffer = pvBuffer;
    plstrSafe->Length = lstrTemp.Length;
    plstrSafe->MaximumLength = lstrTemp.Length;
 
    return STATUS_SUCCESS;
}

Referenced by NtUserCreateWindowEx().

UserFreeWindowInfo()

static VOID UserFreeWindowInfo ( PTHREADINFO  ti, PWND  Wnd  )

static

Definition at line 543 of file window.c.

{
    PCLIENTINFO ClientInfo = GetWin32ClientInfo();
 
    if (!Wnd) return;
 
    if (ClientInfo->CallbackWnd.pWnd == DesktopHeapAddressToUser(Wnd))
    {
        ClientInfo->CallbackWnd.hWnd = NULL;
        ClientInfo->CallbackWnd.pWnd = NULL;
    }
 
   if (Wnd->strName.Buffer != NULL)
   {
       Wnd->strName.Length = 0;
       Wnd->strName.MaximumLength = 0;
       DesktopHeapFree(Wnd->head.rpdesk,
                       Wnd->strName.Buffer);
       Wnd->strName.Buffer = NULL;
   }
 
//    DesktopHeapFree(Wnd->head.rpdesk, Wnd);
//    WindowObject->hWnd = NULL;
}

Referenced by co_UserFreeWindow().

UserGetAncestor()

PWND FASTCALL UserGetAncestor	(	PWND	Wnd,
		UINT	Type
	)

Definition at line 3344 of file window.c.

{
   PWND WndAncestor, Parent;
 
   if (UserHMGetHandle(Wnd) == IntGetDesktopWindow())
   {
      return NULL;
   }
 
   switch (Type)
   {
      case GA_PARENT:
         {
            WndAncestor = Wnd->spwndParent;
            break;
         }
 
      case GA_ROOT:
         {
            WndAncestor = Wnd;
            Parent = NULL;
 
            for(;;)
            {
               if(!(Parent = WndAncestor->spwndParent))
               {
                  break;
               }
               if(IntIsDesktopWindow(Parent))
               {
                  break;
               }
 
               WndAncestor = Parent;
            }
            break;
         }
 
      case GA_ROOTOWNER:
         {
            WndAncestor = Wnd;
 
            for (;;)
            {
               Parent = IntGetParent(WndAncestor);
 
               if (!Parent)
               {
                  break;
               }
 
               WndAncestor = Parent;
            }
            break;
         }
 
      default:
         {
            return NULL;
         }
   }
 
   return WndAncestor;
}

Referenced by co_WinPosActivateOtherWindow(), co_WinPosSetWindowPos(), IntDefWindowProc(), MENU_TrackKbdMenuBar(), MENU_TrackMouseMenuBar(), NC_HandleNCLButtonDown(), NtUserGetAncestor(), and WinPosFixupFlags().

UserGetShellWindow()

HWND FASTCALL UserGetShellWindow

(

VOID

)

Definition at line 3684 of file window.c.

{
   PWINSTATION_OBJECT WinStaObject;
   HWND Ret;
 
   NTSTATUS Status = IntValidateWindowStationHandle(PsGetCurrentProcess()->Win32WindowStation,
                     UserMode,
                     0,
                     &WinStaObject,
                     0);
 
   if (!NT_SUCCESS(Status))
   {
      SetLastNtError(Status);
      return NULL;
   }
 
   Ret = (HWND)WinStaObject->ShellWindow;
 
   ObDereferenceObject(WinStaObject);
   return Ret;
}

Referenced by co_WinPosSetWindowPos(), and SpiSetWallpaper().

UserGetWindowObject()

PWND FASTCALL UserGetWindowObject

(

HWND

hWnd

)

Definition at line 124 of file window.c.

{
    PWND Window;
 
   if (!hWnd)
   {
      EngSetLastError(ERROR_INVALID_WINDOW_HANDLE);
      return NULL;
   }
 
   Window = (PWND)UserGetObject(gHandleTable, hWnd, TYPE_WINDOW);
   if (!Window || 0 != (Window->state & WNDS_DESTROYED))
   {
      EngSetLastError(ERROR_INVALID_WINDOW_HANDLE);
      return NULL;
   }
 
   return Window;
}

Referenced by CaretSystemTimerProc(), co_IntCallHookProc(), co_IntDoSendMessage(), co_IntGetPeekMessage(), co_IntHideCaret(), co_IntPaintWindows(), co_IntSendActivateMessages(), co_IntSendMessageTimeout(), co_IntSendMessageTimeoutSingle(), co_IntSendMessageWithCallBack(), co_IntSetCaretPos(), co_IntSetWindowLongPtr(), co_MsqInsertMouseMessage(), co_UserCreateWindowEx(), co_UserHideCaret(), co_UserSetCapture(), co_UserSetParent(), DceResetActiveDCEs(), DceUpdateVisRgn(), EngCreateWnd(), EngDeleteWnd(), IntClientShutdown(), IntDdeGetMessageHook(), IntDdePostMessageHook(), IntDdeSendMessageHook(), IntDefWindowProc(), IntDispatchMessage(), IntEnableWindow(), IntFindWindow(), IntGetMenuItemRect(), IntGetWindowObject(), IntIsWindow(), IntLinkHwnd(), IntNtUserSetClassLongPtr(), IntPaintDesktop(), IntScrollWindowEx(), IntSendDestroyMsg(), IntSetOwner(), IntSetTebWndCallback(), IntTrackMouseEvent(), NtGdiUpdateColors(), NtUserBeginPaint(), NtUserBuildHwndList(), NtUserBuildPropList(), NtUserCalcMenuBar(), NtUserCallHwnd(), NtUserCallHwndLock(), NtUserCallHwndParam(), NtUserCallHwndParamLock(), NtUserCallTwoParam(), NtUserChangeClipboardChain(), NtUserChildWindowFromPointEx(), NtUserCreateCaret(), NtUserDeferWindowPos(), NtUserDefSetText(), NtUserDestroyWindow(), NtUserDrawCaptionTemp(), NtUserDrawMenuBarTemp(), NtUserEnableScrollBar(), NtUserEndPaint(), NtUserExcludeUpdateRgn(), NtUserFillWindow(), NtUserFindWindowEx(), NtUserGetAncestor(), NtUserGetClassName(), NtUserGetComboBoxInfo(), NtUserGetControlBrush(), NtUserGetControlColor(), NtUserGetCPD(), NtUserGetDCEx(), NtUserGetInternalWindowPos(), NtUserGetLayeredWindowAttributes(), NtUserGetListBoxInfo(), NtUserGetMenuBarInfo(), NtUserGetMenuItemRect(), NtUserGetScrollBarInfo(), NtUserGetSystemMenu(), NtUserGetTitleBarInfo(), NtUserGetUpdateRect(), NtUserGetUpdateRgn(), NtUserGetWindowPlacement(), NtUserHideCaret(), NtUserHiliteMenuItem(), NtUserInternalGetWindowText(), NtUserKillTimer(), NtUserMenuItemFromPoint(), NtUserMessageCall(), NtUserMinMaximize(), NtUserMonitorFromWindow(), NtUserNotifyWinEvent(), NtUserPaintMenuBar(), NtUserPrintWindow(), NtUserQueryWindow(), NtUserRealChildWindowFromPoint(), NtUserRedrawWindow(), NtUserRegisterHotKey(), NtUserRemoveProp(), NtUserSBGetParms(), NtUserScrollWindowEx(), NtUserSetActiveWindow(), NtUserSetClipboardViewer(), NtUserSetFocus(), NtUserSetInternalWindowPos(), NtUserSetLayeredWindowAttributes(), NtUserSetMenu(), NtUserSetProp(), NtUserSetScrollBarInfo(), NtUserSetScrollInfo(), NtUserSetShellWindowEx(), NtUserSetSystemMenu(), NtUserSetSystemTimer(), NtUserSetTimer(), NtUserSetWindowFNID(), NtUserSetWindowPlacement(), NtUserSetWindowPos(), NtUserSetWindowRgn(), NtUserSetWindowWord(), NtUserShowCaret(), NtUserShowScrollBar(), NtUserShowWindow(), NtUserShowWindowAsync(), NtUserTrackPopupMenuEx(), NtUserTranslateAccelerator(), NtUserTranslateMessage(), NtUserUnregisterHotKey(), NtUserUpdateLayeredWindow(), NtUserWindowFromPoint(), ScrollBarWndProc(), SnapWindow(), SpiNotifyNCMetricsChanged(), SystemTimerProc(), UserGetDesktopWindow(), UserGethWnd(), UserOpenClipboard(), UserPostMessage(), UserRealizePalette(), UserRegisterUserApiHook(), and UserSendNotifyMessage().

UserUpdateUiState()

BOOL FASTCALL UserUpdateUiState	(	PWND	Wnd,
		WPARAM	wParam
	)

Definition at line 40 of file window.c.

{
    WORD Action = LOWORD(wParam);
    WORD Flags = HIWORD(wParam);
 
    if (Flags & ~(UISF_HIDEFOCUS | UISF_HIDEACCEL | UISF_ACTIVE))
    {
        EngSetLastError(ERROR_INVALID_PARAMETER);
        return FALSE;
    }
 
    switch (Action)
    {
        case UIS_INITIALIZE:
            EngSetLastError(ERROR_INVALID_PARAMETER);
            return FALSE;
 
        case UIS_SET:
            if (Flags & UISF_HIDEFOCUS)
                Wnd->HideFocus = TRUE;
            if (Flags & UISF_HIDEACCEL)
                Wnd->HideAccel = TRUE;
            break;
 
        case UIS_CLEAR:
            if (Flags & UISF_HIDEFOCUS)
                Wnd->HideFocus = FALSE;
            if (Flags & UISF_HIDEACCEL)
                Wnd->HideAccel = FALSE;
            break;
    }
 
    return TRUE;
}

Referenced by NtUserCallTwoParam().

ValidateHwndNoErr()

PWND FASTCALL ValidateHwndNoErr

(

HWND

hWnd

)

Definition at line 108 of file window.c.

{
    PWND Window;
 
    if (!hWnd)
        return NULL;
 
    Window = (PWND)UserGetObjectNoErr(gHandleTable, hWnd, TYPE_WINDOW);
    if (!Window || (Window->state & WNDS_DESTROYED))
        return NULL;
 
    return Window;
}

VerifyWnd()

PWND FASTCALL VerifyWnd

(

PWND

pWnd

)

Definition at line 88 of file window.c.

{
    ULONG Error;
 
    if (!pWnd ||
        (pWnd->state & WNDS_DESTROYED) ||
        (pWnd->state2 & WNDS2_INDESTROY))
    {
        return NULL;
    }
 
    Error = EngGetLastError();
 
    if (UserObjectInDestroy(UserHMGetHandle(pWnd)))
        pWnd = NULL;
 
    EngSetLastError(Error);
    return pWnd;
}

Referenced by ActivateOtherWindowMin(), co_IntMakeWindowActive(), co_IntSetActiveWindow(), co_IntSetForegroundMessageQueue(), co_WinPosShowWindow(), IntActivateWindow(), IntDispatchMessage(), IntSendParentNotify(), MENU_TrackMenu(), UserSetActiveWindow(), and VIS_ComputeVisibleRegion().

Variable Documentation

gNestedWindowLimit

INT gNestedWindowLimit = 50

Definition at line 16 of file window.c.

Referenced by IntValidateOwnerDepth().

gpwlCache

PWINDOWLIST gpwlCache = NULL

Definition at line 19 of file window.c.

Referenced by IntBuildHwndList(), IntFreeHwndList(), and UserProcessDestroy().

gpwlList

PWINDOWLIST gpwlList = NULL

Definition at line 18 of file window.c.

Referenced by ExitThreadCallback(), IntBuildHwndList(), and IntFreeHwndList().