defwnd.c File Reference

#include <user32.h>
#include <ddk/immdev.h>

Include dependency graph for defwnd.c:

Go to the source code of this file.

Functions
	WINE_DEFAULT_DEBUG_CHANNEL (user32)
DWORD WINAPI DECLSPEC_HOTPATCH	GetSysColor (int nIndex)
HBRUSH WINAPI DECLSPEC_HOTPATCH	GetSysColorBrush (int nIndex)
BOOL WINAPI	SetSysColors (int cElements, CONST INT *lpaElements, CONST COLORREF *lpaRgbValues)
BOOL FASTCALL	DefSetText (HWND hWnd, PCWSTR String, BOOL Ansi)
HWND FASTCALL	IntFindChildWindowToOwner (HWND hRoot, HWND hOwner)
static VOID	DefWndTrackScrollBar (HWND Wnd, WPARAM wParam, POINT Pt)
LRESULT WINAPI	DoAppSwitch (WPARAM wParam, LPARAM lParam)
LRESULT	DefWndHandleSysCommand (HWND hWnd, WPARAM wParam, LPARAM lParam)
HBRUSH	DefWndControlColor (HDC hDC, UINT ctlType)
static BOOL CALLBACK	UserSendUiUpdateMsg (HWND hwnd, LPARAM lParam)
static void	UserPaintCaption (PWND pwnd, INT Flags)
LRESULT FASTCALL	DefWndGetIcon (PWND pWnd, WPARAM wParam, LPARAM lParam)
LRESULT WINAPI	User32DefWindowProc (HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam, BOOL bUnicode)
LRESULT WINAPI	RealDefWindowProcA (HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam)
LRESULT WINAPI	RealDefWindowProcW (HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam)
LRESULT WINAPI	DefWindowProcA (HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam)
LRESULT WINAPI	DefWindowProcW (HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam)

Function Documentation

DefSetText()

BOOL FASTCALL DefSetText	(	HWND	hWnd,
		PCWSTR	String,
		BOOL	Ansi
	)

Definition at line 65 of file defwnd.c.

{
  BOOL Ret;
  LARGE_STRING lsString;
 
  if ( String )
  {
     if ( Ansi )
        RtlInitLargeAnsiString((PLARGE_ANSI_STRING)&lsString, (PCSZ)String, 0);
     else
        RtlInitLargeUnicodeString((PLARGE_UNICODE_STRING)&lsString, String, 0);
  }
  Ret = NtUserDefSetText(hWnd, (String ? &lsString : NULL));
 
  return Ret;
}

DefWindowProcA()

LRESULT WINAPI DefWindowProcA	(	HWND	hWnd,
		UINT	Msg,
		WPARAM	wParam,
		LPARAM	lParam
	)

Definition at line 1237 of file defwnd.c.

{
   BOOL Hook, msgOverride = FALSE;
   LRESULT Result = 0;
 
   LoadUserApiHook();
 
   Hook = BeginIfHookedUserApiHook();
   if (Hook)
   {
      msgOverride = IsMsgOverride(Msg, &guah.DefWndProcArray);
      if(msgOverride == FALSE)
      {
          EndUserApiHook();
      }
   }
 
   /* Bypass SEH and go direct. */
   if (!Hook || !msgOverride)
      return RealDefWindowProcA(hWnd, Msg, wParam, lParam);
 
   _SEH2_TRY
   {
      Result = guah.DefWindowProcA(hWnd, Msg, wParam, lParam);
   }
   _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
   {
       ERR("Got exception in hooked DefWindowProcA!\n");
   }
   _SEH2_END;
 
   EndUserApiHook();
 
   return Result;
}

DefWindowProcW()

LRESULT WINAPI DefWindowProcW	(	HWND	hWnd,
		UINT	Msg,
		WPARAM	wParam,
		LPARAM	lParam
	)

Definition at line 1277 of file defwnd.c.

{
   BOOL Hook, msgOverride = FALSE;
   LRESULT Result = 0;
 
   LoadUserApiHook();
 
   Hook = BeginIfHookedUserApiHook();
   if (Hook)
   {
      msgOverride = IsMsgOverride(Msg, &guah.DefWndProcArray);
      if(msgOverride == FALSE)
      {
          EndUserApiHook();
      }
   }
 
   /* Bypass SEH and go direct. */
   if (!Hook || !msgOverride)
      return RealDefWindowProcW(hWnd, Msg, wParam, lParam);
 
   _SEH2_TRY
   {
      Result = guah.DefWindowProcW(hWnd, Msg, wParam, lParam);
   }
   _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
   {
       ERR("Got exception in hooked DefWindowProcW!\n");
   }
   _SEH2_END;
 
   EndUserApiHook();
 
   return Result;
}

DefWndControlColor()

HBRUSH DefWndControlColor	(	HDC	hDC,
		UINT	ctlType
	)

Definition at line 213 of file defwnd.c.

{
  if (ctlType == CTLCOLOR_SCROLLBAR)
  {
      HBRUSH hb = GetSysColorBrush(COLOR_SCROLLBAR);
      COLORREF bk = GetSysColor(COLOR_3DHILIGHT);
      SetTextColor(hDC, GetSysColor(COLOR_3DFACE));
      SetBkColor(hDC, bk);
 
      /* if COLOR_WINDOW happens to be the same as COLOR_3DHILIGHT
       * we better use 0x55aa bitmap brush to make scrollbar's background
       * look different from the window background.
       */
      if ( bk == GetSysColor(COLOR_WINDOW))
          return gpsi->hbrGray;
 
      UnrealizeObject( hb );
      return hb;
  }
 
  SetTextColor(hDC, GetSysColor(COLOR_WINDOWTEXT));
 
  if ((ctlType == CTLCOLOR_EDIT) || (ctlType == CTLCOLOR_LISTBOX))
  {
      SetBkColor(hDC, GetSysColor(COLOR_WINDOW));
  }
  else
  {
      SetBkColor(hDC, GetSysColor(COLOR_3DFACE));
      return GetSysColorBrush(COLOR_3DFACE);
  }
 
  return GetSysColorBrush(COLOR_WINDOW);
}

DefWndGetIcon()

LRESULT FASTCALL DefWndGetIcon	(	PWND	pWnd,
		WPARAM	wParam,
		LPARAM	lParam
	)

Definition at line 292 of file defwnd.c.

{
    HICON hIconRet;
    if ( wParam > ICON_SMALL2 )
    {
        SetLastError(ERROR_INVALID_PARAMETER);
        return 0;
    }
    switch(wParam)
    {
        case ICON_BIG:
            hIconRet = UserGetProp(UserHMGetHandle(pWnd), gpsi->atomIconProp, TRUE);
            break;
        case ICON_SMALL:
        case ICON_SMALL2:
            hIconRet = UserGetProp(UserHMGetHandle(pWnd), gpsi->atomIconSmProp, TRUE);
            break;
        default:
            break;
    }
    return (LRESULT)hIconRet;
}

DefWndHandleSysCommand()

LRESULT DefWndHandleSysCommand	(	HWND	hWnd,
		WPARAM	wParam,
		LPARAM	lParam
	)

Definition at line 144 of file defwnd.c.

{
  POINT Pt;
  LRESULT lResult;
 
  if (!IsWindowEnabled( hWnd )) return 0;
 
  switch (wParam & 0xfff0)
    {
      case SC_MOVE:
      case SC_SIZE:
//      case SC_DEFAULT:
      case SC_MOUSEMENU:
      case SC_KEYMENU:
      case SC_SCREENSAVE:
      case SC_MINIMIZE:
      case SC_MAXIMIZE:
      case SC_RESTORE:
      case SC_CLOSE:
      case SC_HOTKEY:
        NtUserMessageCall( hWnd, WM_SYSCOMMAND, wParam, lParam, (ULONG_PTR)&lResult, FNID_DEFWINDOWPROC, FALSE);
        return 0;
 
      default:
        break;
    }
 
  if (ISITHOOKED(WH_CBT))
  {
     NtUserMessageCall( hWnd, WM_SYSCOMMAND, wParam, lParam, (ULONG_PTR)&lResult, FNID_DEFWINDOWPROC, FALSE);
     if (lResult) return 0;
  }
 
  switch (wParam & 0xfff0)
    {
 
      case SC_VSCROLL:
      case SC_HSCROLL:
        {
          Pt.x = (short)LOWORD(lParam);
          Pt.y = (short)HIWORD(lParam);
          DefWndTrackScrollBar(hWnd, wParam, Pt);
        }
    break;
 
      case SC_TASKLIST:
        WinExec( "taskman.exe", SW_SHOWNORMAL );
        break;
 
 
      case SC_NEXTWINDOW:
      case SC_PREVWINDOW:
        DoAppSwitch( wParam, lParam);
        break;
 
      default:
        FIXME("Unimplemented DefWndHandleSysCommand wParam 0x%x\n",wParam);
        break;
    }
 
  return(0);
}

DefWndTrackScrollBar()

static VOID DefWndTrackScrollBar ( HWND  Wnd, WPARAM  wParam, POINT  Pt  )

static

Definition at line 118 of file defwnd.c.

{
  INT ScrollBar;
 
  if (SC_HSCROLL == (wParam & 0xfff0))
    {
      if (HTHSCROLL != (wParam & 0x0f))
        {
          return;
        }
      ScrollBar = SB_HORZ;
    }
  else  /* SC_VSCROLL */
    {
      if (HTVSCROLL != (wParam & 0x0f))
        {
          return;
        }
      ScrollBar = SB_VERT;
    }
  ScrollTrackScrollBar(Wnd, ScrollBar, Pt );
}

Referenced by DefWndHandleSysCommand().

DoAppSwitch()

LRESULT WINAPI DoAppSwitch	(	WPARAM	wParam,
		LPARAM	lParam
	)

Definition at line 584 of file appswitch.c.

{
   HWND hwndActive;
   MSG msg;
 
   // FIXME: Is loading timing OK?
   LoadCoolSwitchSettings();
 
   if (!CoolSwitch)
      return 0;
 
   // Already in the loop.
   if (switchdialog || Esc) return 0;
 
   if (lParam == VK_ESCAPE)
   {
      Esc = TRUE;
 
      windowCount = 0;
      EnumWindows(EnumWindowsProc, 0);
 
      if (windowCount < 2)
          return 0;
 
      RotateTasks(GetAsyncKeyState(VK_SHIFT) < 0);
 
      hwndActive = GetActiveWindow();
 
      if (hwndActive == NULL)
      {
          Esc = FALSE;
          return 0;
      }
   }
 
   // Capture current active window.
   hwndActive = GetActiveWindow();
   if (hwndActive)
       SetCapture(hwndActive);
 
   switch (lParam)
   {
      case VK_TAB:
         if (!GetDialogFont() || !ProcessHotKey())
             goto Exit;
         break;
 
      case VK_ESCAPE:
         break;
 
      default:
         goto Exit;
   }
 
   if (!hwndActive)
       goto Exit;
 
   // Main message loop:
   while (1)
   {
      for (;;)
      {
         if (PeekMessageW( &msg, 0, 0, 0, PM_NOREMOVE ))
         {
             if (!CallMsgFilterW( &msg, MSGF_NEXTWINDOW )) break;
             /* remove the message from the queue */
             PeekMessageW( &msg, 0, msg.message, msg.message, PM_REMOVE );
         }
         else
             WaitMessage();
      }
 
      switch (msg.message)
      {
        case WM_KEYUP:
        {
          PeekMessageW( &msg, 0, msg.message, msg.message, PM_REMOVE );
          if (msg.wParam == VK_MENU)
          {
             CompleteSwitch(TRUE);
          }
          else if (msg.wParam == VK_RETURN)
          {
             CompleteSwitch(TRUE);
          }
          else if (msg.wParam == VK_ESCAPE)
          {
             TRACE("DoAppSwitch VK_ESCAPE 2\n");
             CompleteSwitch(FALSE);
          }
          goto Exit; //break;
        }
 
        case WM_SYSKEYDOWN:
        {
          PeekMessageW( &msg, 0, msg.message, msg.message, PM_REMOVE );
          if (HIWORD(msg.lParam) & KF_ALTDOWN)
          {
             if ( msg.wParam == VK_TAB )
             {
                if (Esc) break;
                if (GetKeyState(VK_SHIFT) < 0)
                {
                    MoveLeft();
                }
                else
                {
                    MoveRight();
                }
             }
             else if ( msg.wParam == VK_ESCAPE )
             {
                if (!Esc) break;
                RotateTasks(GetKeyState(VK_SHIFT) < 0);
             }
             else if ( msg.wParam == VK_LEFT )
             {
                MoveLeft();
             }
             else if ( msg.wParam == VK_RIGHT )
             {
                MoveRight();
             }
             else if ( msg.wParam == VK_UP )
             {
                MoveUp();
             }
             else if ( msg.wParam == VK_DOWN )
             {
                MoveDown();
             }
          }
          break;
        }
 
        case WM_LBUTTONUP:
          PeekMessageW( &msg, 0, msg.message, msg.message, PM_REMOVE );
          ProcessMouseMessage(msg.message, msg.lParam);
          goto Exit;
 
        default:
          if (PeekMessageW( &msg, 0, msg.message, msg.message, PM_REMOVE ))
          {
             TranslateMessage(&msg);
             DispatchMessageW(&msg);
          }
          break;
      }
   }
Exit:
   ReleaseCapture();
   if (switchdialog) DestroyWindow(switchdialog);
   if (Esc) DestroyAppWindows();
   switchdialog = NULL;
   selectedWindow = 0;
   windowCount = 0;
   Esc = FALSE;
   return 0;
}

Referenced by DefWndHandleSysCommand().

GetSysColor()

DWORD WINAPI DECLSPEC_HOTPATCH GetSysColor

(

int

nIndex

)

Definition at line 23 of file defwnd.c.

{
  if(nIndex >= 0 && nIndex < NUM_SYSCOLORS)
  {
    return gpsi->argbSystem[nIndex];
  }
 
  SetLastError(ERROR_INVALID_PARAMETER);
  return 0;
}

Referenced by DefWndControlColor().

GetSysColorBrush()

HBRUSH WINAPI DECLSPEC_HOTPATCH GetSysColorBrush

(

int

nIndex

)

Definition at line 40 of file defwnd.c.

{
  if(nIndex >= 0 && nIndex < NUM_SYSCOLORS)
  {
    return gpsi->ahbrSystem[nIndex];
  }
 
  return NULL;
}

Referenced by DefWndControlColor(), FillRect(), IntDrawRectEdge(), IntDrawState(), UITOOLS95_DFC_ButtonPush(), and UITOOLS_DrawCheckedRect().

IntFindChildWindowToOwner()

HWND FASTCALL IntFindChildWindowToOwner	(	HWND	hRoot,
		HWND	hOwner
	)

Definition at line 83 of file defwnd.c.

{
   HWND Ret;
   PWND Child, OwnerWnd, Root, Owner;
 
   Root = ValidateHwnd(hRoot);
   Owner = ValidateHwnd(hOwner);
 
   for( Child = Root->spwndChild ? DesktopPtrToUser(Root->spwndChild) : NULL;
        Child;
        Child = Child->spwndNext ? DesktopPtrToUser(Child->spwndNext) : NULL )
   {
      OwnerWnd = Child->spwndOwner ? DesktopPtrToUser(Child->spwndOwner) : NULL;
      if(!OwnerWnd)
         continue;
 
      if (!(Child->style & WS_POPUP) || !(Child->style & WS_VISIBLE))
         continue;
 
      if(OwnerWnd == Owner)
      {
         Ret = Child->head.h;
         return Ret;
      }
   }
   ERR("IDCWTO Nothing found\n");
   return NULL;
}

RealDefWindowProcA()

LRESULT WINAPI RealDefWindowProcA	(	HWND	hWnd,
		UINT	Msg,
		WPARAM	wParam,
		LPARAM	lParam
	)

Definition at line 813 of file defwnd.c.

{
    LRESULT Result = 0;
    PWND Wnd;
 
    Wnd = ValidateHwnd(hWnd);
 
    if ( !Wnd &&
         Msg != WM_CTLCOLORMSGBOX &&
         Msg != WM_CTLCOLORBTN    &&
         Msg != WM_CTLCOLORDLG    &&
         Msg != WM_CTLCOLORSTATIC )
       return 0;
 
    SPY_EnterMessage(SPY_DEFWNDPROC, hWnd, Msg, wParam, lParam);
    switch (Msg)
    {
        case WM_NCCREATE:
        {
            if ( Wnd &&
                 Wnd->style & (WS_HSCROLL | WS_VSCROLL) )
            {
               if (!Wnd->pSBInfo)
               {
                  SCROLLINFO si = {sizeof si, SIF_ALL, 0, 100, 0, 0, 0};
                  SetScrollInfo( hWnd, SB_HORZ, &si, FALSE );
                  SetScrollInfo( hWnd, SB_VERT, &si, FALSE );
               }
            }
 
            if (lParam)
            {
                LPCREATESTRUCTA cs = (LPCREATESTRUCTA)lParam;
                /* check for string, as static icons, bitmaps (SS_ICON, SS_BITMAP)
                 * may have child window IDs instead of window name */
                if (HIWORD(cs->lpszName))
                {
                    DefSetText(hWnd, (PCWSTR)cs->lpszName, TRUE);
                }
                Result = 1;
            }
            break;
        }
 
        case WM_GETTEXTLENGTH:
        {
            PWSTR buf;
            ULONG len;
 
            if (Wnd != NULL && Wnd->strName.Length != 0)
            {
                buf = DesktopPtrToUser(Wnd->strName.Buffer);
                if (buf != NULL &&
                    NT_SUCCESS(RtlUnicodeToMultiByteSize(&len,
                                                         buf,
                                                         Wnd->strName.Length)))
                {
                    Result = (LRESULT) len;
                }
            }
            else Result = 0L;
 
            break;
        }
 
        case WM_GETTEXT:
        {
            PWSTR buf = NULL;
            PSTR outbuf = (PSTR)lParam;
            SIZE_T copy;
 
            if (Wnd != NULL && wParam != 0)
            {
                if (Wnd->strName.Buffer != NULL)
                    buf = DesktopPtrToUser(Wnd->strName.Buffer);
                else
                    outbuf[0] = L'\0';
 
                if (buf != NULL)
                {
                    if (Wnd->strName.Length != 0)
                    {
                        copy = min(Wnd->strName.Length / sizeof(WCHAR), wParam - 1);
                        Result = WideCharToMultiByte(CP_ACP,
                                                     0,
                                                     buf,
                                                     copy,
                                                     outbuf,
                                                     wParam,
                                                     NULL,
                                                     NULL);
                        outbuf[Result] = '\0';
                    }
                    else
                        outbuf[0] = '\0';
                }
            }
            break;
        }
 
        case WM_SETTEXT:
        {
            DefSetText(hWnd, (PCWSTR)lParam, TRUE);
 
            if ((GetWindowLongPtrW(hWnd, GWL_STYLE) & WS_CAPTION) == WS_CAPTION)
            {
                UserPaintCaption(Wnd, DC_TEXT);
                IntNotifyWinEvent(EVENT_OBJECT_NAMECHANGE, hWnd, OBJID_WINDOW, CHILDID_SELF, 0);
            }
            Result = 1;
            break;
        }
 
        case WM_IME_KEYDOWN:
        {
            Result = PostMessageA(hWnd, WM_KEYDOWN, wParam, lParam);
            break;
        }
 
        case WM_IME_KEYUP:
        {
            Result = PostMessageA(hWnd, WM_KEYUP, wParam, lParam);
            break;
        }
 
        case WM_IME_CHAR:
        {
            if (HIBYTE(wParam))
                PostMessageA(hWnd, WM_CHAR, HIBYTE(wParam), lParam);
            PostMessageA(hWnd, WM_CHAR, LOBYTE(wParam), lParam);
            break;
        }
 
        case WM_IME_COMPOSITION:
        if (lParam & GCS_RESULTSTR)
        {
            LONG size, i;
            unsigned char lead = 0;
            char *buf = NULL;
            HIMC himc = IMM_FN(ImmGetContext)( hWnd );
 
            if (himc)
            {
                if ((size = IMM_FN(ImmGetCompositionStringA)( himc, GCS_RESULTSTR, NULL, 0 )))
                {
                    if (!(buf = HeapAlloc( GetProcessHeap(), 0, size ))) size = 0;
                    else size = IMM_FN(ImmGetCompositionStringA)( himc, GCS_RESULTSTR, buf, size );
                }
                IMM_FN(ImmReleaseContext)( hWnd, himc );
 
                for (i = 0; i < size; i++)
                {
                    unsigned char c = buf[i];
                    if (!lead)
                    {
                        if (IsDBCSLeadByte( c ))
                            lead = c;
                        else
                            SendMessageA( hWnd, WM_IME_CHAR, c, 1 );
                    }
                    else
                    {
                        SendMessageA( hWnd, WM_IME_CHAR, MAKEWORD(c, lead), 1 );
                        lead = 0;
                    }
                }
                HeapFree( GetProcessHeap(), 0, buf );
            }
        }
        /* fall through */
        case WM_IME_STARTCOMPOSITION:
        case WM_IME_ENDCOMPOSITION:
        case WM_IME_SELECT:
        case WM_IME_NOTIFY:
        case WM_IME_CONTROL:
        case WM_IME_SETCONTEXT:
NormalImeMsgHandling:
        {
            HWND hwndIME;
 
            if (GetWin32ClientInfo()->dwTIFlags & TIF_DISABLEIME)
            {
                TRACE("This thread's IME is disabled\n");
                break;
            }
 
            hwndIME = IMM_FN(ImmGetDefaultIMEWnd)(hWnd);
            if (!hwndIME)
            {
                ERR("hwndIME was NULL\n");
                break;
            }
 
            if (hwndIME == hWnd)
            {
                ImeWndProc_common(hwndIME, Msg, wParam, lParam, FALSE);
                break;
            }
 
            Result = SendMessageA(hwndIME, Msg, wParam, lParam);
            break;
        }
 
        case WM_IME_SYSTEM:
        {
            if (wParam == 4)
                break;
 
            goto NormalImeMsgHandling;
        }
 
        default:
            Result = User32DefWindowProc(hWnd, Msg, wParam, lParam, FALSE);
    }
 
    SPY_ExitMessage(SPY_RESULT_DEFWND, hWnd, Msg, Result, wParam, lParam);
    return Result;
}

Referenced by DefWindowProcA(), and ResetUserApiHook().

RealDefWindowProcW()

LRESULT WINAPI RealDefWindowProcW	(	HWND	hWnd,
		UINT	Msg,
		WPARAM	wParam,
		LPARAM	lParam
	)

Definition at line 1037 of file defwnd.c.

{
    LRESULT Result = 0;
    PWND Wnd;
 
    Wnd = ValidateHwnd(hWnd);
 
    if ( !Wnd &&
         Msg != WM_CTLCOLORMSGBOX &&
         Msg != WM_CTLCOLORBTN    &&
         Msg != WM_CTLCOLORDLG    &&
         Msg != WM_CTLCOLORSTATIC )
       return 0;
 
    SPY_EnterMessage(SPY_DEFWNDPROC, hWnd, Msg, wParam, lParam);
    switch (Msg)
    {
        case WM_NCCREATE:
        {
            if ( Wnd &&
                 Wnd->style & (WS_HSCROLL | WS_VSCROLL) )
            {
               if (!Wnd->pSBInfo)
               {
                  SCROLLINFO si = {sizeof si, SIF_ALL, 0, 100, 0, 0, 0};
                  if (Wnd->style & WS_HSCROLL)
                     SetScrollInfo( hWnd, SB_HORZ, &si, FALSE );
                  if (Wnd->style & WS_VSCROLL)
                     SetScrollInfo( hWnd, SB_VERT, &si, FALSE );
               }
            }
 
            if (lParam)
            {
                LPCREATESTRUCTW cs = (LPCREATESTRUCTW)lParam;
                /* check for string, as static icons, bitmaps (SS_ICON, SS_BITMAP)
                 * may have child window IDs instead of window name */
                if (HIWORD(cs->lpszName))
                {
                    DefSetText(hWnd, cs->lpszName, FALSE);
                }
                Result = 1;
            }
            break;
        }
 
        case WM_GETTEXTLENGTH:
        {
            PWSTR buf;
            ULONG len;
 
            if (Wnd != NULL && Wnd->strName.Length != 0)
            {
                buf = DesktopPtrToUser(Wnd->strName.Buffer);
                if (buf != NULL &&
                    NT_SUCCESS(RtlUnicodeToMultiByteSize(&len,
                                                         buf,
                                                         Wnd->strName.Length)))
                {
                    Result = (LRESULT) (Wnd->strName.Length / sizeof(WCHAR));
                }
            }
            else Result = 0L;
 
            break;
        }
 
        case WM_GETTEXT:
        {
            PWSTR buf = NULL;
            PWSTR outbuf = (PWSTR)lParam;
 
            if (Wnd != NULL && wParam != 0)
            {
                if (Wnd->strName.Buffer != NULL)
                    buf = DesktopPtrToUser(Wnd->strName.Buffer);
                else
                    outbuf[0] = L'\0';
 
                if (buf != NULL)
                {
                    if (Wnd->strName.Length != 0)
                    {
                        Result = min(Wnd->strName.Length / sizeof(WCHAR), wParam - 1);
                        RtlCopyMemory(outbuf,
                                      buf,
                                      Result * sizeof(WCHAR));
                        outbuf[Result] = L'\0';
                    }
                    else
                        outbuf[0] = L'\0';
                }
            }
            break;
        }
 
        case WM_SETTEXT:
        {
            DefSetText(hWnd, (PCWSTR)lParam, FALSE);
 
            if ((GetWindowLongPtrW(hWnd, GWL_STYLE) & WS_CAPTION) == WS_CAPTION)
                UserPaintCaption(Wnd, DC_TEXT);
            Result = 1;
            break;
        }
 
        case WM_IME_CHAR:
        {
            PostMessageW(hWnd, WM_CHAR, wParam, lParam);
            Result = 0;
            break;
        }
 
        case WM_IME_KEYDOWN:
        {
            Result = PostMessageW(hWnd, WM_KEYDOWN, wParam, lParam);
            break;
        }
 
        case WM_IME_KEYUP:
        {
            Result = PostMessageW(hWnd, WM_KEYUP, wParam, lParam);
            break;
        }
 
        case WM_IME_COMPOSITION:
        if (lParam & GCS_RESULTSTR)
        {
            LONG size, i;
            WCHAR *buf = NULL;
            HIMC himc = IMM_FN(ImmGetContext)( hWnd );
 
            if (himc)
            {
                if ((size = IMM_FN(ImmGetCompositionStringW)( himc, GCS_RESULTSTR, NULL, 0 )))
                {
                    if (!(buf = HeapAlloc( GetProcessHeap(), 0, size * sizeof(WCHAR) ))) size = 0;
                    else size = IMM_FN(ImmGetCompositionStringW)( himc, GCS_RESULTSTR, buf, size * sizeof(WCHAR) );
                }
                IMM_FN(ImmReleaseContext)( hWnd, himc );
 
                for (i = 0; i < size / sizeof(WCHAR); i++)
                    SendMessageW( hWnd, WM_IME_CHAR, buf[i], 1 );
                HeapFree( GetProcessHeap(), 0, buf );
            }
        }
        /* fall through */
        case WM_IME_STARTCOMPOSITION:
        case WM_IME_ENDCOMPOSITION:
        case WM_IME_SELECT:
        case WM_IME_NOTIFY:
        case WM_IME_CONTROL:
        case WM_IME_SETCONTEXT:
NormalImeMsgHandling:
        {
            HWND hwndIME;
 
            if (GetWin32ClientInfo()->dwTIFlags & TIF_DISABLEIME)
            {
                TRACE("This thread's IME is disabled\n");
                break;
            }
 
            hwndIME = IMM_FN(ImmGetDefaultIMEWnd)(hWnd);
            if (!hwndIME)
            {
                ERR("hwndIME was NULL\n");
                break;
            }
 
            if (hwndIME == hWnd)
            {
                ImeWndProc_common(hwndIME, Msg, wParam, lParam, TRUE);
                break;
            }
 
            Result = SendMessageW(hwndIME, Msg, wParam, lParam);
            break;
        }
 
        case WM_IME_SYSTEM:
        {
            if (wParam == 4)
                break;
 
            goto NormalImeMsgHandling;
        }
 
        default:
            Result = User32DefWindowProc(hWnd, Msg, wParam, lParam, TRUE);
    }
    SPY_ExitMessage(SPY_RESULT_DEFWND, hWnd, Msg, Result, wParam, lParam);
 
    return Result;
}

Referenced by DefWindowProcW(), and ResetUserApiHook().

SetSysColors()

BOOL WINAPI SetSysColors	(	int	cElements,
		CONST INT *	lpaElements,
		CONST COLORREF *	lpaRgbValues
	)

Definition at line 55 of file defwnd.c.

{
  return NtUserSetSysColors(cElements, lpaElements, lpaRgbValues, 0);
}

User32DefWindowProc()

LRESULT WINAPI User32DefWindowProc	(	HWND	hWnd,
		UINT	Msg,
		WPARAM	wParam,
		LPARAM	lParam,
		BOOL	bUnicode
	)

Definition at line 317 of file defwnd.c.

{
    PWND pWnd = NULL;
    if (hWnd)
    {
       pWnd = ValidateHwnd(hWnd);
       if (!pWnd) return 0;
    }
 
    switch (Msg)
    {
        case WM_DEVICECHANGE:
            return TRUE;
 
        case WM_POPUPSYSTEMMENU:
        {
            /* This is an undocumented message used by the windows taskbar to
               display the system menu of windows that belong to other processes. */
            HMENU menu = GetSystemMenu(hWnd, FALSE);
            ERR("WM_POPUPSYSTEMMENU\n");
            if (menu)
            {
                SetForegroundWindow(hWnd);
                TrackPopupMenu(menu, TPM_LEFTBUTTON|TPM_RIGHTBUTTON|TPM_SYSTEM_MENU,
                               LOWORD(lParam), HIWORD(lParam), 0, hWnd, NULL);
            }
            return 0;
        }
 
        case WM_RBUTTONUP:
        {
            POINT Pt;
            Pt.x = GET_X_LPARAM(lParam);
            Pt.y = GET_Y_LPARAM(lParam);
            ClientToScreen(hWnd, &Pt);
            lParam = MAKELPARAM(Pt.x, Pt.y);
            if (bUnicode)
            {
                SendMessageW(hWnd, WM_CONTEXTMENU, (WPARAM)hWnd, lParam);
            }
            else
            {
                SendMessageA(hWnd, WM_CONTEXTMENU, (WPARAM)hWnd, lParam);
            }
            break;
        }
 
        case WM_NCRBUTTONUP:
          /*
           * FIXME : we must NOT send WM_CONTEXTMENU on a WM_NCRBUTTONUP (checked
           * in Windows), but what _should_ we do? According to MSDN :
           * "If it is appropriate to do so, the system sends the WM_SYSCOMMAND
           * message to the window". When is it appropriate?
           */
           ERR("WM_NCRBUTTONUP\n");
            break;
 
        case WM_XBUTTONUP:
        case WM_NCXBUTTONUP:
            if (HIWORD(wParam) == XBUTTON1 || HIWORD(wParam) == XBUTTON2)
            {
               SendMessageW(hWnd, WM_APPCOMMAND, (WPARAM)hWnd,
                         MAKELPARAM(LOWORD(wParam), FAPPCOMMAND_MOUSE | HIWORD(wParam)));
            }
            break;
 
        case WM_CONTEXTMENU:
        {
            if (GetWindowLongPtrW(hWnd, GWL_STYLE) & WS_CHILD)
            {
                if (bUnicode)
                {
                    SendMessageW(GetParent(hWnd), Msg, (WPARAM)hWnd, lParam);
                }
                else
                {
                    SendMessageA(GetParent(hWnd), Msg, (WPARAM)hWnd, lParam);
                }
            }
            else
            {
               goto GoSS;
            }
            break;
        }
 
        case WM_CLOSE:
            DestroyWindow(hWnd);
            return (0);
 
        case WM_MOUSEACTIVATE:
            if (GetWindowLongPtrW(hWnd, GWL_STYLE) & WS_CHILD)
            {
                LONG Ret = SendMessageW(GetParent(hWnd), WM_MOUSEACTIVATE, wParam, lParam);
                if (Ret) return (Ret);
            }
            return ( (HIWORD(lParam) == WM_LBUTTONDOWN && LOWORD(lParam) == HTCAPTION) ? MA_NOACTIVATE : MA_ACTIVATE );
 
        case WM_ACTIVATE:
            /* The default action in Windows is to set the keyboard focus to
             * the window, if it's being activated and not minimized */
            if (LOWORD(wParam) != WA_INACTIVE &&
                !(GetWindowLongPtrW(hWnd, GWL_STYLE) & WS_MINIMIZE))
            {
                //ERR("WM_ACTIVATE %p\n",hWnd);
                SetFocus(hWnd);
            }
            break;
 
        case WM_MOUSEWHEEL:
            if (GetWindowLongPtrW(hWnd, GWL_STYLE) & WS_CHILD)
                return SendMessageW( GetParent(hWnd), WM_MOUSEWHEEL, wParam, lParam);
            break;
 
        case WM_ERASEBKGND:
        case WM_ICONERASEBKGND:
        {
            RECT Rect;
            HBRUSH hBrush = (HBRUSH)GetClassLongPtrW(hWnd, GCL_HBRBACKGROUND);
 
            if (NULL == hBrush)
            {
                return 0;
            }
            if (GetClassLongPtrW(hWnd, GCL_STYLE) & CS_PARENTDC)
            {
                /* can't use GetClipBox with a parent DC or we fill the whole parent */
                GetClientRect(hWnd, &Rect);
                DPtoLP((HDC)wParam, (LPPOINT)&Rect, 2);
            }
            else
            {
                GetClipBox((HDC)wParam, &Rect);
            }
            FillRect((HDC)wParam, &Rect, hBrush);
            return (1);
        }
 
        case WM_CTLCOLORMSGBOX:
        case WM_CTLCOLOREDIT:
        case WM_CTLCOLORLISTBOX:
        case WM_CTLCOLORBTN:
        case WM_CTLCOLORDLG:
        case WM_CTLCOLORSTATIC:
        case WM_CTLCOLORSCROLLBAR:
            return (LRESULT) DefWndControlColor((HDC)wParam, Msg - WM_CTLCOLORMSGBOX);
 
        case WM_CTLCOLOR:
            return (LRESULT) DefWndControlColor((HDC)wParam, HIWORD(lParam));
 
        case WM_SYSCOMMAND:
            return (DefWndHandleSysCommand(hWnd, wParam, lParam));
 
        case WM_VKEYTOITEM:
        case WM_CHARTOITEM:
            return (-1);
/*
        case WM_DROPOBJECT:
            return DRAG_FILE;
*/
        case WM_QUERYDROPOBJECT:
        {
            if (GetWindowLongPtrW(hWnd, GWL_EXSTYLE) & WS_EX_ACCEPTFILES)
            {
                return(1);
            }
            break;
        }
 
        case WM_QUERYDRAGICON:
        {
            UINT Len;
            HICON hIcon;
 
            hIcon = (HICON)GetClassLongPtrW(hWnd, GCL_HICON);
            if (hIcon)
            {
                return ((LRESULT)hIcon);
            }
            for (Len = 1; Len < 64; Len++)
            {
                if ((hIcon = LoadIconW(NULL, MAKEINTRESOURCEW(Len))) != NULL)
                {
                    return((LRESULT)hIcon);
                }
            }
            return ((LRESULT)LoadIconW(0, IDI_APPLICATION));
        }
 
        case WM_ISACTIVEICON:
        {
           BOOL isai;
           isai = (pWnd->state & WNDS_ACTIVEFRAME) != 0;
           return isai;
        }
 
        case WM_NOTIFYFORMAT:
        {
            if (lParam == NF_QUERY)
                return IsWindowUnicode(hWnd) ? NFR_UNICODE : NFR_ANSI;
            break;
        }
 
        case WM_GETICON:
        {
           return DefWndGetIcon(pWnd, wParam, lParam);
        }
 
        case WM_HELP:
        {
            if (bUnicode)
            {
                SendMessageW(GetParent(hWnd), Msg, wParam, lParam);
            }
            else
            {
                SendMessageA(GetParent(hWnd), Msg, wParam, lParam);
            }
            break;
        }
 
        case WM_QUERYOPEN:
        case WM_QUERYENDSESSION:
        {
            return (1);
        }
 
        case WM_INPUTLANGCHANGEREQUEST:
        {
            HKL NewHkl;
 
            if(wParam & INPUTLANGCHANGE_BACKWARD
               && wParam & INPUTLANGCHANGE_FORWARD)
            {
                return FALSE;
            }
 
            //FIXME: What to do with INPUTLANGCHANGE_SYSCHARSET ?
 
            if(wParam & INPUTLANGCHANGE_BACKWARD) NewHkl = (HKL) HKL_PREV;
            else if(wParam & INPUTLANGCHANGE_FORWARD) NewHkl = (HKL) HKL_NEXT;
            else NewHkl = (HKL) lParam;
 
            NtUserActivateKeyboardLayout(NewHkl, KLF_SETFORPROCESS);
 
            return TRUE;
        }
 
        case WM_INPUTLANGCHANGE:
        {
            int count = 0;
            HWND *win_array = WIN_ListChildren( hWnd );
 
            if (!win_array)
                break;
            while (win_array[count])
                SendMessageW( win_array[count++], WM_INPUTLANGCHANGE, wParam, lParam);
            HeapFree(GetProcessHeap(),0,win_array);
            break;
        }
 
        case WM_QUERYUISTATE:
        {
            LRESULT Ret = 0;
            PWND Wnd = ValidateHwnd(hWnd);
            if (Wnd != NULL)
            {
                if (Wnd->HideFocus)
                    Ret |= UISF_HIDEFOCUS;
                if (Wnd->HideAccel)
                    Ret |= UISF_HIDEACCEL;
            }
            return Ret;
        }
 
        case WM_CHANGEUISTATE:
        {
            BOOL AlwaysShowCues = FALSE;
            WORD Action = LOWORD(wParam);
            WORD Flags = HIWORD(wParam);
            PWND Wnd;
 
            SystemParametersInfoW(SPI_GETKEYBOARDCUES, 0, &AlwaysShowCues, 0);
            if (AlwaysShowCues)
                break;
 
            Wnd= ValidateHwnd(hWnd);
            if (!Wnd || lParam != 0)
                break;
 
            if (Flags & ~(UISF_HIDEFOCUS | UISF_HIDEACCEL | UISF_ACTIVE))
                break;
 
            if (Flags & UISF_ACTIVE)
            {
                WARN("WM_CHANGEUISTATE does not yet support UISF_ACTIVE!\n");
            }
 
            if (Action == UIS_INITIALIZE)
            {
                PDESKTOPINFO Desk = GetThreadDesktopInfo();
                if (Desk == NULL)
                    break;
 
                Action = Desk->LastInputWasKbd ? UIS_CLEAR : UIS_SET;
                Flags = UISF_HIDEFOCUS | UISF_HIDEACCEL;
 
                /* We need to update wParam in case we need to send out messages */
                wParam = MAKEWPARAM(Action, Flags);
            }
 
            switch (Action)
            {
                case UIS_SET:
                    /* See if we actually need to change something */
                    if ((Flags & UISF_HIDEFOCUS) && !Wnd->HideFocus)
                        break;
                    if ((Flags & UISF_HIDEACCEL) && !Wnd->HideAccel)
                        break;
 
                    /* Don't need to do anything... */
                    return 0;
 
                case UIS_CLEAR:
                    /* See if we actually need to change something */
                    if ((Flags & UISF_HIDEFOCUS) && Wnd->HideFocus)
                        break;
                    if ((Flags & UISF_HIDEACCEL) && Wnd->HideAccel)
                        break;
 
                    /* Don't need to do anything... */
                    return 0;
 
                default:
                    WARN("WM_CHANGEUISTATE: Unsupported Action 0x%x\n", Action);
                    break;
            }
 
            if ((Wnd->style & WS_CHILD) && Wnd->spwndParent != NULL)
            {
                /* We're a child window and we need to pass this message down until
                   we reach the root */
                hWnd = UserHMGetHandle((PWND)DesktopPtrToUser(Wnd->spwndParent));
            }
            else
            {
                /* We're a top level window, we need to change the UI state */
                Msg = WM_UPDATEUISTATE;
            }
 
            if (bUnicode)
                return SendMessageW(hWnd, Msg, wParam, lParam);
            else
                return SendMessageA(hWnd, Msg, wParam, lParam);
        }
 
        case WM_UPDATEUISTATE:
        {
            BOOL Change = TRUE;
            BOOL AlwaysShowCues = FALSE;
            WORD Action = LOWORD(wParam);
            WORD Flags = HIWORD(wParam);
            PWND Wnd;
 
            SystemParametersInfoW(SPI_GETKEYBOARDCUES, 0, &AlwaysShowCues, 0);
            if (AlwaysShowCues)
                break;
 
            Wnd = ValidateHwnd(hWnd);
            if (!Wnd || lParam != 0)
                break;
 
            if (Flags & ~(UISF_HIDEFOCUS | UISF_HIDEACCEL | UISF_ACTIVE))
                break;
 
            if (Flags & UISF_ACTIVE)
            {
                WARN("WM_UPDATEUISTATE does not yet support UISF_ACTIVE!\n");
            }
 
            if (Action == UIS_INITIALIZE)
            {
                PDESKTOPINFO Desk = GetThreadDesktopInfo();
                if (Desk == NULL)
                    break;
 
                Action = Desk->LastInputWasKbd ? UIS_CLEAR : UIS_SET;
                Flags = UISF_HIDEFOCUS | UISF_HIDEACCEL;
 
                /* We need to update wParam for broadcasting the update */
                wParam = MAKEWPARAM(Action, Flags);
            }
 
            switch (Action)
            {
                case UIS_SET:
                    /* See if we actually need to change something */
                    if ((Flags & UISF_HIDEFOCUS) && !Wnd->HideFocus)
                        break;
                    if ((Flags & UISF_HIDEACCEL) && !Wnd->HideAccel)
                        break;
 
                    /* Don't need to do anything... */
                    Change = FALSE;
                    break;
 
                case UIS_CLEAR:
                    /* See if we actually need to change something */
                    if ((Flags & UISF_HIDEFOCUS) && Wnd->HideFocus)
                        break;
                    if ((Flags & UISF_HIDEACCEL) && Wnd->HideAccel)
                        break;
 
                    /* Don't need to do anything... */
                    Change = FALSE;
                    break;
 
                default:
                    WARN("WM_UPDATEUISTATE: Unsupported Action 0x%x\n", Action);
                    return 0;
            }
 
            /* Pack the information and call win32k */
            if (Change)
            {
                if (!NtUserxUpdateUiState(hWnd, Flags | ((DWORD)Action << 3)))
                    break;
            }
 
            /* Always broadcast the update to all children */
            EnumChildWindows(hWnd,
                             UserSendUiUpdateMsg,
                             (LPARAM)wParam);
 
            break;
        }
 
        case WM_COPYGLOBALDATA:
        {
            TRACE("WM_COPYGLOBALDATA hGlobal %p Size %d Flags 0x%x\n",lParam,wParam,GlobalFlags((HGLOBAL)lParam));
            return lParam;
        }
 
/* Move to Win32k !*/
        case WM_SHOWWINDOW:
            if (!lParam) break; // Call when it is necessary.
        case WM_LBUTTONDOWN:
        case WM_RBUTTONDOWN:
        case WM_MBUTTONDOWN:
        case WM_NCLBUTTONDOWN:
        case WM_NCRBUTTONDOWN:
        case WM_LBUTTONDBLCLK:
        case WM_NCLBUTTONDBLCLK:
        case WM_KEYF1:
        case WM_KEYUP:
        case WM_SYSKEYUP:
        case WM_KEYDOWN:
        case WM_SYSKEYDOWN:
        case WM_SYSCHAR:
        case WM_CANCELMODE:
        case WM_PAINTICON:
        case WM_PAINT:
        case WM_PRINT:
        case WM_SETICON:
        case WM_SYSCOLORCHANGE:
        case WM_NCUAHDRAWCAPTION:
        case WM_NCUAHDRAWFRAME:
        case WM_NCPAINT:
        case WM_NCACTIVATE:
        case WM_NCCALCSIZE:
        case WM_NCHITTEST:
        case WM_SYNCPAINT:
        case WM_SETREDRAW:
        case WM_CLIENTSHUTDOWN:
        case WM_GETHOTKEY:
        case WM_SETHOTKEY:
        case WM_WINDOWPOSCHANGING:
        case WM_WINDOWPOSCHANGED:
        case WM_APPCOMMAND:
        case WM_SETCURSOR:
GoSS:
        {
            LRESULT lResult;
            NtUserMessageCall( hWnd, Msg, wParam, lParam, (ULONG_PTR)&lResult, FNID_DEFWINDOWPROC, !bUnicode);
            return lResult;
        }
    }
    return 0;
}

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

UserPaintCaption()

static void UserPaintCaption ( PWND  pwnd, INT  Flags  )

static

Definition at line 259 of file defwnd.c.

{
  if ( pwnd->style & WS_VISIBLE && (pwnd->style & WS_CAPTION) == WS_CAPTION )
  {
     if (pwnd->state & WNDS_HASCAPTION && NtUserQueryWindow(UserHMGetHandle(pwnd), QUERY_WINDOW_FOREGROUND))
        Flags |= DC_ACTIVE;
    /* 
     * When themes are not enabled we can go on and paint the non client area.
     * However if we do that with themes enabled we will draw a classic frame.
     * This is solved by sending a themes specific message to notify the themes
     * engine that the caption needs to be redrawn 
     */
    if(gpsi->dwSRVIFlags & SRVINFO_APIHOOK)
    {
        /* 
         * This will cause uxtheme to either paint the themed caption or call
         * RealUserDrawCaption in order to draw the classic caption when themes
         * are disabled but the themes service is enabled
         */
        SendMessageW(UserHMGetHandle(pwnd), WM_NCUAHDRAWCAPTION, Flags, 0);
    }
    else
    {
        RECT rc = {0,0,0,0};
        HDC hDC = GetDCEx(UserHMGetHandle(pwnd), NULL, DCX_WINDOW|DCX_USESTYLE);
        NtUserDrawCaption(UserHMGetHandle(pwnd), hDC, &rc, DC_DRAWCAPTIONMD|Flags);
        ReleaseDC(UserHMGetHandle(pwnd), hDC);
    }
  }
  //NtUserCallTwoParam((DWORD_PTR)UserHMGetHandle(pwnd),Flags,TWOPARAM_ROUTINE_REDRAWTITLE)
}

UserSendUiUpdateMsg()

static BOOL CALLBACK UserSendUiUpdateMsg ( HWND  hwnd, LPARAM  lParam  )

static

Definition at line 249 of file defwnd.c.

{
    SendMessageW(hwnd, WM_UPDATEUISTATE, (WPARAM)lParam, 0);
    return TRUE;
}

Referenced by User32DefWindowProc().

WINE_DEFAULT_DEBUG_CHANNEL()

WINE_DEFAULT_DEBUG_CHANNEL

(

user32

)