[gvg] 14709: You can ask for e.g. GWL_STYLE for the desktop window,

You can ask for e.g. GWL_STYLE for the desktop window,
but GWL_WNDPROC is off-limits for all windows if your
process didn't create it
Modified: trunk/reactos/subsys/win32k/ntuser/window.c
  _____

Modified: trunk/reactos/subsys/win32k/ntuser/window.c
--- trunk/reactos/subsys/win32k/ntuser/window.c	2005-04-19 22:45:48 UTC
(rev 14708)
+++ trunk/reactos/subsys/win32k/ntuser/window.c	2005-04-20 07:25:14 UTC
(rev 14709)
@@ -16,8 +16,7 @@

*  along with this program; if not, write to the Free Software
  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
-/* $Id$
- *
+/*
  * COPYRIGHT:        See COPYING in the top level directory
  * PROJECT:          ReactOS kernel
  * PURPOSE:          Windows
@@ -26,7 +25,9 @@
  * REVISION HISTORY:
  *       06-06-2001  CSH  Created
  */
+
 /* INCLUDES
******************************************************************/
+
 #include <w32k.h>

static WndProcHandle *WndProcHandlesArray = 0;
@@ -3204,12 +3205,12 @@
    }

/*
-    * Only allow CSRSS to mess with the desktop window
+    * WndProc is only available to the owner process
     */
-   if (hWnd == IntGetDesktopWindow()
+   if (GWL_WNDPROC == Index
        && WindowObject->OwnerThread->ThreadsProcess !=
PsGetCurrentProcess())
    {
-      SetLastWin32Error(STATUS_ACCESS_DENIED);
+      SetLastWin32Error(ERROR_ACCESS_DENIED);
       return 0;
    }