[Bug 28678] DirectDraw primary buffer is obscured by transparent window

http://bugs.winehq.org/show_bug.cgi?id=28678

--- Comment #6 from Octavian Voicu  2011-10-12 14:47:20 CDT ---
Created attachment 36862
  --> http://bugs.winehq.org/attachment.cgi?id=36862
Testcase showing problem with WS_EX_TRANSPARENT.

Testcase has a main window (with a red background) with two child WS_POPUP
windows (with default background). The one on the right has WS_EX_TRANSPARENT
extended style.

On native, only one gray rectangle on the left is visible (the background of
the left window). On wine, both gray rectangles are visible.