[tkreuzer] 58099: [GDI32] Set correct last error code in GetClipRgn. Fixes regression from r58089.

Author: tkreuzer
Date: Wed Jan  2 10:54:54 2013
New Revision: 58099

URL: http://svn.reactos.org/svn/reactos?rev=58099&view=rev
Log:
[GDI32]
Set correct last error code in GetClipRgn. Fixes regression from r58089.

Modified:
    trunk/reactos/win32ss/gdi/gdi32/objects/region.c

Modified: trunk/reactos/win32ss/gdi/gdi32/objects/region.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/win32ss/gdi/gdi32/objects/r...
==============================================================================
--- trunk/reactos/win32ss/gdi/gdi32/objects/region.c [iso-8859-1] (original)
+++ trunk/reactos/win32ss/gdi/gdi32/objects/region.c [iso-8859-1] Wed Jan  2 10:54:54 2013
@@ -700,7 +700,18 @@
     HRGN    hrgn
 )
 {
-    INT Ret = NtGdiGetRandomRgn(hdc, hrgn, CLIPRGN);
+    INT Ret;
+
+    /* Check if DC handle is valid */
+    if (!GdiGetDcAttr(hdc))
+    {
+        /* Last error code differs from what NtGdiGetRandomRgn returns */
+        SetLastError(ERROR_INVALID_PARAMETER);
+        return 0;
+    }
+
+    Ret = NtGdiGetRandomRgn(hdc, hrgn, CLIPRGN);
+
 //  if (Ret)
 //  {
 //     if(GetLayout(hdc) & LAYOUT_RTL) MirrorRgnDC(hdc,(HRGN)Ret, NULL);