Alexandre Julliard : user32: Don' t print CreateWindow warning for HWND_MESSAGE windows.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 67cbdfb575e79b3cc96c7bdfb859f761e2fb6b4e
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=67cbdfb575e79b3cc96c7bdfb859f761e2fb6b4e

Author: Alexandre Julliard <julliard at winehq.org>
Date:   Fri Oct 23 12:23:51 2009 +0200

user32: Don't print CreateWindow warning for HWND_MESSAGE windows.

---

 dlls/user32/driver.c |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/dlls/user32/driver.c b/dlls/user32/driver.c
index 6454f65..1c6db68 100644
--- a/dlls/user32/driver.c
+++ b/dlls/user32/driver.c
@@ -320,8 +320,10 @@ static BOOL CDECL nulldrv_CreateDesktopWindow( HWND hwnd )
 static BOOL CDECL nulldrv_CreateWindow( HWND hwnd )
 {
     static int warned;
-    if (warned++)
-        return FALSE;
+
+    /* HWND_MESSAGE windows don't need a graphics driver */
+    if (GetAncestor( hwnd, GA_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");
     switch (driver_load_error)