window.c File Reference

#include <win32k.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	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)
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)
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)
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)
NTSTATUS APIENTRY	NtUserBuildHwndList (HDESK hDesktop, HWND hwndParent, BOOLEAN bChildren, ULONG dwThreadId, ULONG lParam, HWND *pWnd, ULONG *pBufSize)
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)
PWND FASTCALL	co_UserCreateWindowEx (CREATESTRUCTW *Cs, PUNICODE_STRING ClassName, PLARGE_STRING WindowName, PVOID acbiBuffer)
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)
BOOLEAN	co_UserDestroyWindow (PVOID Object)
BOOLEAN APIENTRY	NtUserDestroyWindow (HWND Wnd)
static 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

Macro Definition Documentation

CBF_BUTTONDOWN

#define CBF_BUTTONDOWN   0x0002

Definition at line 3252 of file window.c.

GWLP_CONSOLE_LEADER_PID

#define GWLP_CONSOLE_LEADER_PID   0

GWLP_CONSOLE_LEADER_TID

#define GWLP_CONSOLE_LEADER_TID   4

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 1109 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 */

   if (WndNewParent != WndOldParent)
   {
      /* Unlink the window from the siblings list */
      IntUnlinkWindow(Wnd);
      Wnd->ExStyle2 &= ~WS_EX2_LINKED;

      /* Set the new parent */
      Wnd->spwndParent = 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 3620 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);
      }

#ifdef _WIN64
      if (Size == sizeof(LONG))
      {
         OldValue = *((LONG *)((PCHAR)(Window + 1) + Index));
         *((LONG*)((PCHAR)(Window + 1) + Index)) = (LONG)NewValue;
      }
      else
#endif
      {
         OldValue = *((LONG_PTR *)((PCHAR)(Window + 1) + Index));
         /*
         if ( Index == DWLP_DLGPROC && Wnd->state & WNDS_DIALOGWINDOW)
         {
            OldValue = (LONG_PTR)IntSetWindowProc( Wnd, (WNDPROC)NewValue, Ansi);
            if (!OldValue) return 0;
         }
         */
         *((LONG_PTR*)((PCHAR)(Window + 1) + Index)) = 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 && (Parent->head.h == IntGetDesktopWindow()))
               OldValue = (LONG_PTR) IntSetOwner(Window->head.h, (HWND) NewValue);
            else
               OldValue = (LONG_PTR) co_UserSetParent(Window->head.h, (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
	)

Definition at line 1956 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!\n");
      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 = pti->rpdesk->pDeskInfo->spwnd->head.h;
   hWndOwner = NULL;

    if (Cs->hwndParent == HWND_MESSAGE)
    {
        Cs->hwndParent = hWndParent = pti->rpdesk->spwndMessage->head.h;
    }
    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 without a parent!\n");
         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\n");
        goto cleanup;
    }
    else if (hWndOwner && !OwnerWindow)
    {
        ERR("Got invalid owner window handle\n");
        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);
   if(!Window)
   {
       ERR("IntCreateWindow failed!\n");
       goto cleanup;
   }

   hWnd = UserHMGetHandle(Window);
   hwndInsertAfter = HWND_TOP;

   UserRefObjectCo(Window, &Ref);
   UserDereferenceObject(Window);
   ObDereferenceObject(WinSta);

   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;
      }

      /* Fill the new CREATESTRUCTW */
      RtlCopyMemory(pCsw, Cs, sizeof(CREATESTRUCTW));
      pCsw->style = Window->style; /* HCBT_CREATEWND needs the real window style */

      // Based on the assumption this is from "unicode source" user32, ReactOS, answer is yes.
      if (!IS_ATOM(ClassName->Buffer))
      {
         if (Window->state & WNDS_ANSICREATOR)
         {
            ANSI_STRING AnsiString;
            AnsiString.MaximumLength = (USHORT)RtlUnicodeStringToAnsiSize(ClassName)+sizeof(CHAR);
            pszClass = UserHeapAlloc(AnsiString.MaximumLength);
            if (!pszClass)
            {
               ERR("UserHeapAlloc() failed!\n");
               goto cleanup;
            }
            RtlZeroMemory(pszClass, AnsiString.MaximumLength);
            AnsiString.Buffer = (PCHAR)pszClass;
            RtlUnicodeStringToAnsiString(&AnsiString, ClassName, FALSE);
         }
         else
         {
            UNICODE_STRING UnicodeString;
            UnicodeString.MaximumLength = ClassName->Length + sizeof(UNICODE_NULL);
            pszClass = UserHeapAlloc(UnicodeString.MaximumLength);
            if (!pszClass)
            {
               ERR("UserHeapAlloc() failed!\n");
               goto cleanup;
            }
            RtlZeroMemory(pszClass, UnicodeString.MaximumLength);
            UnicodeString.Buffer = (PWSTR)pszClass;
            RtlCopyUnicodeString(&UnicodeString, ClassName);
         }
         pCsw->lpszClass = UserHeapAddressToUser(pszClass);
      }
      if (WindowName->Length)
      {
         UNICODE_STRING Name;
         Name.Buffer = WindowName->Buffer;
         Name.Length = (USHORT)min(WindowName->Length, MAXUSHORT); // FIXME: LARGE_STRING truncated
         Name.MaximumLength = (USHORT)min(WindowName->MaximumLength, MAXUSHORT);

         if (Window->state & WNDS_ANSICREATOR)
         {
            ANSI_STRING AnsiString;
            AnsiString.MaximumLength = (USHORT)RtlUnicodeStringToAnsiSize(&Name) + sizeof(CHAR);
            pszName = UserHeapAlloc(AnsiString.MaximumLength);
            if (!pszName)
            {
               ERR("UserHeapAlloc() failed!\n");
               goto cleanup;
            }
            RtlZeroMemory(pszName, AnsiString.MaximumLength);
            AnsiString.Buffer = (PCHAR)pszName;
            RtlUnicodeStringToAnsiString(&AnsiString, &Name, FALSE);
         }
         else
         {
            UNICODE_STRING UnicodeString;
            UnicodeString.MaximumLength = Name.Length + sizeof(UNICODE_NULL);
            pszName = UserHeapAlloc(UnicodeString.MaximumLength);
            if (!pszName)
            {
               ERR("UserHeapAlloc() failed!\n");
               goto cleanup;
            }
            RtlZeroMemory(pszName, UnicodeString.MaximumLength);
            UnicodeString.Buffer = (PWSTR)pszName;
            RtlCopyUnicodeString(&UnicodeString, &Name);
         }
         pCsw->lpszName = UserHeapAddressToUser(pszName);
      }

      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;
   }

   /* NCCREATE and WM_NCCALCSIZE need the original values */
   Cs->lpszName = (LPCWSTR) WindowName;
   Cs->lpszClass = (LPCWSTR) ClassName;

   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;

   /* Link the window */
   if (NULL != ParentWindow)
   {
      /* Link the window into the siblings list */
      if ((Cs->style & (WS_CHILD|WS_MAXIMIZE)) == WS_CHILD)
          IntLinkHwnd(Window, HWND_BOTTOM);
      else
          IntLinkHwnd(Window, hwndInsertAfter);
   }

   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 != Window->spwndParent->head.pti)
         {
            //ERR("CreateWindow Parent in.\n");
            UserAttachThreadInput(pti, Window->spwndParent->head.pti, TRUE);
         }
      }
   }

   /* Send the NCCREATE message */
   Result = co_IntSendMessage(UserHMGetHandle(Window), WM_NCCREATE, 0, (LPARAM) Cs);
   if (!Result)
   {
      ERR("co_UserCreateWindowEx(): NCCREATE message failed\n");
      goto cleanup;
   }

   /* 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(Window->head.h, 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(): WM_CREATE message failed\n");
      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()) 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 (UserIsDesktopWindow(Window->spwndParent) &&
       Window->spwndOwner == NULL &&
       (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(): Created window %p\n", 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 MENU_InitPopup(), and NtUserCreateWindowEx().

co_UserDestroyWindow()

BOOLEAN co_UserDestroyWindow

(

PVOID

Object

)

Definition at line 2629 of file window.c.

{
   HWND hWnd;
   PWND pwndTemp;
   PTHREADINFO ti;
   MSG msg;
   PWND Window = Object;

   ASSERT_REFS_CO(Window); // FIXME: Temp HACK?

   hWnd = Window->head.h;
   ti = PsGetCurrentThreadWin32Thread();

   TRACE("co_UserDestroyWindow(Window = 0x%p, hWnd = 0x%p)\n", Window, hWnd);

   /* Check for owner thread */
   if ( Window->head.pti != PsGetCurrentThreadWin32Thread())
   {
       /* 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)
         pwndTemp->spwndLastActive = 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 != NULL) && (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))
    {
        HWND* List;
        HWND* phWnd;
        PWND pWnd;

        List = IntWinListOwnedPopups(Window);
        if (List)
        {
            for (phWnd = List; *phWnd; ++phWnd)
            {
                pWnd = ValidateHwndNoErr(*phWnd);
                if (pWnd == NULL)
                    continue;
                ASSERT(pWnd->spwndOwner == Window);
                ASSERT(pWnd != Window);

                pWnd->spwndOwner = NULL;
                if (IntWndBelongsToThread(pWnd, PsGetCurrentThreadWin32Thread()))
                {
                    USER_REFERENCE_ENTRY Ref;
                    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);
        }
    }

    /* 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));

   if (!IntIsWindow(UserHMGetHandle(Window)))
   {
      return TRUE;
   }

   /* Destroy the window storage */
   co_UserFreeWindow(Window, PsGetCurrentProcessWin32Process(), PsGetCurrentThreadWin32Thread(), TRUE);

   return TRUE;
}

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

co_UserFreeWindow()

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

Definition at line 546 of file window.c.

{
   HWND *Children;
   HWND *ChildHandle;
   PWND Child;
   PMENU Menu;
   BOOLEAN BelongsToThreadData;

   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() */
   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 (Window->head.h == ThreadData->rpdesk->rpwinstaParent->ShellWindow)
         ThreadData->rpdesk->rpwinstaParent->ShellWindow = NULL;

      if (Window->head.h == ThreadData->rpdesk->rpwinstaParent->ShellListView)
         ThreadData->rpdesk->rpwinstaParent->ShellListView = NULL;
   }

   /* 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);
   }

   UserReferenceObject(Window);
   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);

   UserDereferenceObject(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 1246 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 = WndOldParent->head.h;
      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 3815 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 3821 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 4149 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;
}

IntCheckFrameEdge()

static BOOL FASTCALL IntCheckFrameEdge ( ULONG  Style, ULONG  ExStyle  )

static

Definition at line 3609 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
	)

Definition at line 1612 of file window.c.

{
   PWND pWnd = NULL;
   HWND hWnd;
   PTHREADINFO pti = NULL;
   BOOL MenuChanged;
   BOOL bUnicodeWindow;

   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 ... */
   pWnd->spwndParent = ParentWindow;
   pWnd->spwndOwner = OwnerWindow;
   pWnd->fnid = 0;
   pWnd->spwndLastActive = pWnd;
   pWnd->state2 |= WNDS2_WIN40COMPAT; // FIXME!!!
   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;
   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;
   }

   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.
   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().

IntEnableWindow()

BOOL FASTCALL IntEnableWindow	(	HWND	hWnd,
		BOOL	bEnable
	)

Definition at line 201 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()

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

static

Definition at line 2846 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++) != ChildAfter->head.h))
            ;
      }

      /* 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 = Child->head.h;
                break;
             }
         }
      }
      ExFreePoolWithTag(List, USERTAG_WINDOWLIST);
   }

   return Ret;
}

Referenced by NtUserFindWindowEx().

IntFixWindowCoordinates()

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

Definition at line 1522 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().

IntGetNonChildAncestor()

PWND FASTCALL IntGetNonChildAncestor

(

PWND

pWnd

)

Definition at line 323 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 185 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 353 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 410 of file window.c.

{
   DWORD HelpId;

   do
   {
      HelpId = (DWORD)(DWORD_PTR)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 51 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 735 of file window.c.

{
   INT i;
   PCLS Class;
   WNDPROC gcpd, Ret = 0;

   ASSERT(UserIsEnteredExclusive() == TRUE);

   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().

IntIsChildWindow()

BOOL FASTCALL IntIsChildWindow	(	PWND	Parent,
		PWND	BaseWindow
	)

Definition at line 882 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 331 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 157 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 170 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 937 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("IntLinkHwnd -- Trying to link window 0x%p to itself!!\n", Wnd);
        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(), and IntLinkHwnd().

IntLinkWindow()

VOID FASTCALL IntLinkWindow	(	PWND	Wnd,
		PWND	WndInsertAfter
	)

Definition at line 899 of file window.c.

{
    if (Wnd == WndInsertAfter)
    {
        ERR("IntLinkWindow -- Trying to link window 0x%p to itself!!\n", Wnd);
        return;
    }

    Wnd->spwndPrev = WndInsertAfter;
    if (Wnd->spwndPrev)
    {
        /* Link after WndInsertAfter */
        ASSERT(Wnd != WndInsertAfter->spwndNext);
        Wnd->spwndNext = WndInsertAfter->spwndNext;
        if (Wnd->spwndNext)
            Wnd->spwndNext->spwndPrev = Wnd;

        ASSERT(Wnd != Wnd->spwndPrev);
        Wnd->spwndPrev->spwndNext = Wnd;
    }
    else
    {
        /* Link at the top */
        ASSERT(Wnd != Wnd->spwndParent->spwndChild);
        Wnd->spwndNext = Wnd->spwndParent->spwndChild;
        if (Wnd->spwndNext)
            Wnd->spwndNext->spwndPrev = Wnd;

        Wnd->spwndParent->spwndChild = Wnd;
    }
}

Referenced by IntLinkHwnd().

IntProcessOwnerSwap()

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

Definition at line 1030 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().

IntRemoveTrackMouseEvent()

VOID FASTCALL IntRemoveTrackMouseEvent

(

PDESKTOP

pDesk

)

Definition at line 347 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 433 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->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().

IntSendParentNotify()

static void IntSendParentNotify ( PWND  pWindow, UINT  msg  )

static

Definition at line 1503 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( pWindow->spwndParent->head.h,
                               WM_PARENTNOTIFY,
                               MAKEWPARAM( msg, pWindow->IDMenu),
                               (LPARAM)pWindow->head.h );
            UserDerefObjectCo(pWindow->spwndParent);
        }
    }
}

Referenced by co_UserCreateWindowEx(), and co_UserDestroyWindow().

IntSetOwner()

HWND FASTCALL IntSetOwner	(	HWND	hWnd,
		HWND	hWndNewOwner
	)

Definition at line 1061 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))
   {
      if (WndNewOwner)
      {
         Wnd->spwndOwner= WndNewOwner;
      }
      else
      {
         Wnd->spwndOwner = NULL;
      }
   }
   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 124 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(), IntDefWindowProc(), and IntEnableWindow().

IntSetWindowProc()

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

static

Definition at line 795 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 4427 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;
      if (pWnd->spwndOwner != OwnerWnd)
         continue;

      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,