[Bug 2467] starcraft doesn't display battle.net menus correctly

http://bugs.winehq.org/show_bug.cgi?id=2467

--- Comment #140 from Vincent Povirk  2011-08-17 15:41:53 CDT ---
If it's really because we don't read from the screen when locking the primary
surface, that could be a problem. In theory, we can do something like that in
virtual desktop mode without ill effects (assuming it's implemented more
cleanly and we can implement LockWindowUpdate), but performance may be bad.

Anyway, the thing we need to avoid (to be a good X citizen) is writing directly
to the screen, not reading from it. If we're already writing the screen
directly, well, we shouldn't be, but we can get away with leaving that as is.