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- Handle UnsafeRect == NULL case in NtUserGetUpdateRect.

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svn path=/trunk/; revision=10054
This commit is contained in:
Filip Navara
2004-07-09 20:13:00 +00:00
parent 35a256ae2b
commit 79a4726093
1 changed files with 8 additions and 5 deletions
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reactos/subsys/win32k/ntuser/painting.c
+8 -5
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@@ -16,7 +16,7 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* $Id: painting.c,v 1.83 2004/05/15 08:01:56 gvg Exp $
* $Id: painting.c,v 1.84 2004/07/09 20:13:00 navaraf Exp $
*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
@@ -914,11 +914,14 @@ NtUserGetUpdateRect(HWND Wnd, LPRECT UnsafeRect, BOOL Erase)
RGNDATA_UnlockRgn(Rgn);
NtGdiDeleteObject(Rgn);
Status = MmCopyToCaller(UnsafeRect, &Rect, sizeof(RECT));
if (! NT_SUCCESS(Status))
if (UnsafeRect != NULL)
{
SetLastWin32Error(ERROR_INVALID_PARAMETER);
return FALSE;
Status = MmCopyToCaller(UnsafeRect, &Rect, sizeof(RECT));
if (! NT_SUCCESS(Status))
{
SetLastWin32Error(ERROR_INVALID_PARAMETER);
return FALSE;
}
}
return Rect.left < Rect.right && Rect.top < Rect.bottom;