[Win32k]

- Missed the clearing of the clip region for the window at the end of of its life. The mouse is looking for the window, doing so, scanning through all of them, even the ones that are at deaths door.


svn path=/trunk/; revision=50962

reactos/subsystems/win32/win32k/ntuser/window.c

@@ -472,6 +472,7 @@ static LRESULT co_UserFreeWindow(PWND Window,
    if(Window->hrgnClip)
    {
       GreDeleteObject(Window->hrgnClip);
+      Window->hrgnClip = NULL;
    }
 
 //   ASSERT(Window != NULL);