http://bugs.winehq.org/show_bug.cgi?id=11681
--- Comment #5 from Stefan Dösinger stefandoesinger@gmx.at 2008-04-03 19:08:06 --- I think they are, but I have to check. They might be emulated via Direct3D by drivers though, but that is not relevant for us
Overlays != drawing to the NULL window, like in the QuickTime black screen bug.