[Bug 2398] OpenGL is only used on top level windows so child windows get overdrawn

[Wine Bugs]

http://bugs.winehq.org/show_bug.cgi?id=2398

------- Additional Comments From [e-mail]  2007-06-01 16:51 -------
Created an attachment (id=4525)
 --> (http://bugs.winehq.org/attachment.cgi?id=4525&action=view)
Client-Area is overdrawn with data from a previous film

The Client-Area in vlc (--vout=opengl) is overdrawn with the
data from a previous film.

This test is without "explorer.exe /desktop=xxx,800x600" and now 
the Titlebar / Borders are correct.

Testvideo URL:
http://gstreamer.freedesktop.org/media/small/gstreamer.avi