[jimtabor] 43009: Patch by [e-mail]: Some applications try to set a child as a parent. See bug 4789.

Author: jimtabor
Date: Mon Sep  7 00:20:34 2009
New Revision: 43009

URL: http://svn.reactos.org/svn/reactos?rev=43009&view=rev
Log:
Patch by johnyadams(a)hotmail.com: Some applications try to set a child as a parent. See bug
4789.

Modified:
    trunk/reactos/subsystems/win32/win32k/ntuser/window.c

Modified: trunk/reactos/subsystems/win32/win32k/ntuser/window.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/win32/win32k/nt…
==============================================================================
--- trunk/reactos/subsystems/win32/win32k/ntuser/window.c [iso-8859-1] (original)
+++ trunk/reactos/subsystems/win32/win32k/ntuser/window.c [iso-8859-1] Mon Sep  7 00:20:34
2009
@@ -1021,6 +1021,13 @@
 
 //   hWnd = Wnd->hSelf;
 //   hWndNewParent = WndNewParent->hSelf;
+
+   /* Some applications try to set a child as a parent */
+   if (IntIsChildWindow(Wnd, WndNewParent))
+   {
+      SetLastWin32Error( ERROR_INVALID_PARAMETER );
+      return 0;
+   }
 
    /*
     * Windows hides the window first, then shows it again