[jimtabor] 66540: [NtUser] - Fix test for child windows. This is for painting changes. See CORE-7447.

Author: jimtabor
Date: Mon Mar  2 06:45:19 2015
New Revision: 66540

URL: http://svn.reactos.org/svn/reactos?rev=66540&view=rev
Log:
[NtUser]
- Fix test for child windows. This is for painting changes. See CORE-7447.

Modified:
    trunk/reactos/win32ss/user/ntuser/window.c

Modified: trunk/reactos/win32ss/user/ntuser/window.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/win32ss/user/ntuser/window…
==============================================================================
--- trunk/reactos/win32ss/user/ntuser/window.c	[iso-8859-1] (original)
+++ trunk/reactos/win32ss/user/ntuser/window.c	[iso-8859-1] Mon Mar  2 06:45:19 2015
@@ -850,25 +850,25 @@
 
 /* INTERNAL ******************************************************************/
 
-
+////
+//   This fixes a check for children messages that need paint while searching the parents
messages!
+//   Fixes wine msg:test_paint_messages:WmParentErasePaint ..
+////
 BOOL FASTCALL
 IntIsChildWindow(PWND Parent, PWND BaseWindow)
 {
-   PWND Window;
-
-   Window = BaseWindow;
-   while (Window && ((Window->style & (WS_POPUP|WS_CHILD)) == WS_CHILD))
-   {
-      if (Window == Parent)
-      {
-         return(TRUE);
-      }
-
-      Window = Window->spwndParent;
-   }
-
-   return(FALSE);
-}
+   PWND Window = BaseWindow;
+   do
+   {
+     if ( Window == NULL || (Window->style & (WS_POPUP|WS_CHILD)) != WS_CHILD )
+        return FALSE;
+
+     Window = Window->spwndParent;
+   }
+   while(Parent != Window);
+   return TRUE;
+}
+////
 
 /*
    Link the window into siblings list