fixed WindowFromPoint() to search backwards

reactos/subsys/win32k/ntuser

diff -u -r1.88 -r1.89
--- winpos.c	8 Feb 2004 10:53:17 -0000	1.88
+++ winpos.c	17 Feb 2004 17:43:09 -0000	1.89
@@ -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: winpos.c,v 1.88 2004/02/08 10:53:17 navaraf Exp $

+/* $Id: winpos.c,v 1.89 2004/02/17 17:43:09 weiden Exp $

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

@@ -1246,7 +1246,7 @@

   PWINDOW_OBJECT Current;
 
   ExAcquireFastMutexUnsafe(&ScopeWin->ChildrenListLock);

-  Current = ScopeWin->FirstChild;

+  Current = ScopeWin->LastChild;

   while (Current)
     {
       if (Current->Style & WS_VISIBLE &&

@@ -1278,7 +1278,7 @@

 	  ExReleaseFastMutexUnsafe(&ScopeWin->ChildrenListLock);
 	  return(0);
 	}

-      Current = Current->NextSibling;

+      Current = Current->PrevSibling;

     }
 		  
   ExReleaseFastMutexUnsafe(&ScopeWin->ChildrenListLock);