[Bug 2398] OpenGL is only used only 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]  2006-23-04 20:09 -------
Well This is potentially a work around. But the question is how will it effect
performance on the rendering pipeline of an accelerated card. Wine is close to
windows performance when it comes to games.

Is there a way to determine between a MDI type interface and a regular window so
that they are not always rendering to pixmaps and then transposing them on to
the screen?  We want to fix the problem not create a performance issue. So I
think some input on this would be helpful.