[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]  2007-27-03 12:13 -------
This fixed the flicker problems I was having with Weatherscope, but now the
opengl window is not redrawn when and obscuration moved.  For instance, the
image of a drop down menu remains on the opengl window after the menu is closed.
 Interacting with the program and triggering a redraw causes the artifacts to
disappear.