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Erase only client area on WM_ERASEBKGND.

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This commit is contained in:
Alexandre Julliard 2001-07-31 00:05:50 +00:00
parent 647ac511a7
commit 11dd274cb0
1 changed files with 6 additions and 11 deletions
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17
windows/defwnd.c
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@ -457,20 +457,15 @@ static LRESULT DEFWND_DefWinProc( WND *wndPtr, UINT msg, WPARAM wParam,
case WM_ICONERASEBKGND:
{
RECT rect;
HDC hdc = (HDC)wParam;
HBRUSH hbr = GetClassLongW( wndPtr->hwndSelf, GCL_HBRBACKGROUND );
if (!hbr) return 0;
/* Since WM_ERASEBKGND may receive either a window dc or a */
/* client dc, the area to be erased has to be retrieved from */
/* the device context. */
GetClipBox( (HDC)wParam, &rect );
/* Always call the Win32 variant of FillRect even on Win16,
* since despite the fact that Win16, as well as Win32,
* supports special background brushes for a window class,
* the Win16 variant of FillRect does not.
*/
FillRect( (HDC) wParam, &rect, hbr );
/* GetClientRect used to be GetClipBox, but it is not what
* Windows does, and it breaks badly with CS_PARENTDC */
GetClientRect( wndPtr->hwndSelf, &rect );
DPtoLP( hdc, (LPPOINT)&rect, 2 );
FillRect( hdc, &rect, hbr );
return 1;
}