http://bugs.winehq.org/show_bug.cgi?id=33062
--- Comment #7 from Henri Verbeet hverbeet@gmail.com 2013-03-06 16:14:48 CST --- We'll need to write some tests to see how exactly this is supposed to work before we can implement this, and it may take a while before we do. That said, while I don't know the details of the application, I'm not sure if user memory surfaces + GetDC() is really ever the optimal way to draw things.