ASSERT parameter assumptions in EngCopyBits()

reactos/subsys/win32k/eng

diff -u -r1.26 -r1.27
--- copybits.c	14 Jul 2004 20:48:57 -0000	1.26
+++ copybits.c	14 Dec 2004 04:22:00 -0000	1.27
@@ -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: copybits.c,v 1.26 2004/07/14 20:48:57 navaraf Exp $

+/* $Id: copybits.c,v 1.27 2004/12/14 04:22:00 royce Exp $

  *
  * COPYRIGHT:        See COPYING in the top level directory
  * PROJECT:          ReactOS kernel

@@ -45,6 +45,8 @@

   BOOL      EnumMore;
   BLTINFO   BltInfo;
 

+  ASSERT(Dest != NULL && Source != NULL && DestRect != NULL && SourcePoint != NULL);
+

   MouseSafetyOnDrawStart(Source, SourcePoint->x, SourcePoint->y,
                          (SourcePoint->x + abs(DestRect->right - DestRect->left)),
                          (SourcePoint->y + abs(DestRect->bottom - DestRect->top)));