Alexandre Julliard : user32: Don' t print a warning when creating the HWND_MESSAGE parent window.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 59c0c5fb2d53c1bf84f86e0d08a5664a5aaf9612
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=59c0c5fb2d53c1bf84f86e0d08a5664a5aaf9612

Author: Alexandre Julliard <julliard at winehq.org>
Date:   Tue Apr  2 12:46:39 2013 +0200

user32: Don't print a warning when creating the HWND_MESSAGE parent window.

---

 dlls/user32/driver.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/dlls/user32/driver.c b/dlls/user32/driver.c
index 1c12134..8f02e71 100644
--- a/dlls/user32/driver.c
+++ b/dlls/user32/driver.c
@@ -299,9 +299,10 @@ static BOOL CDECL nulldrv_CreateDesktopWindow( HWND hwnd )
 static BOOL CDECL nulldrv_CreateWindow( HWND hwnd )
 {
     static int warned;
+    HWND parent = GetAncestor( hwnd, GA_PARENT );
 
     /* HWND_MESSAGE windows don't need a graphics driver */
-    if (GetAncestor( hwnd, GA_PARENT ) == get_user_thread_info()->msg_window) return TRUE;
+    if (!parent || parent == get_user_thread_info()->msg_window) return TRUE;
     if (warned++) return FALSE;
 
     MESSAGE( "Application tried to create a window, but no driver could be loaded.\n");