From 74bf31b2b2946f07756bc5386d73bcd119f2a389 Mon Sep 17 00:00:00 2001
From: James Tabor <james.tabor@reactos.org>
Date: Thu, 19 Jan 2006 03:25:51 +0000
Subject: [PATCH] Patch by Sebastiaan Roodenburg. Fixes problem in
 NtGdiStrechBlt.

svn path=/trunk/; revision=20946
---
 reactos/subsys/win32k/ntuser/desktop.c | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/reactos/subsys/win32k/ntuser/desktop.c b/reactos/subsys/win32k/ntuser/desktop.c
index 5a446272dba..4a2167bceb8 100644
--- a/reactos/subsys/win32k/ntuser/desktop.c
+++ b/reactos/subsys/win32k/ntuser/desktop.c
@@ -1274,18 +1274,20 @@ NtUserPaintDesktop(HDC hDC)
  
             if (WinSta->WallpaperMode == wmStretch)
             {
-                NtGdiStretchBlt(hDC, 
-                                x, 
-                                y, 
-                                Rect.right, 
-                                Rect.bottom, 
-                                hWallpaperDC, 
-                                0, 
-                                0, 
+                if(Rect.right && Rect.bottom)
+	                NtGdiStretchBlt(hDC,
+                                x,
+                                y,
+                                sz.cx,
+                                sz.cy,
+                                hWallpaperDC,
+                                0,
+                                0,
                                 WinSta->cxWallpaper, 
                                 WinSta->cyWallpaper, 
                                 SRCCOPY,
                                 0);
+                                
             }
             else if (WinSta->WallpaperMode == wmTile)
             {