http://bugs.winehq.org/show_bug.cgi?id=32882
--- Comment #10 from gyurco@freemail.hu 2013-02-13 11:59:40 CST --- (In reply to comment #8)
Created attachment 43541 [details] Reparent client when changing visual
Here's one that should preserve the transparency. Does it work for you?
Yes! This one preserves transparency, and doesn't abort with the GLX error.