http://bugs.winehq.org/show_bug.cgi?id=31754
--- Comment #8 from Alexandre Julliard julliard@winehq.org 2013-06-12 10:24:20 CDT --- IIRC the app is passing an HWND_MESSAGE as focus_window, and wined3d was relying on SetPixelFormat to fail on that window to trigger the backup code path.