[Bug 27669] Combobox, doublebuffering is not working correctly

http://bugs.winehq.org/show_bug.cgi?id=27669

--- Comment #7 from [e-mail] 2012-03-09 08:56:03 CST ---
Still in 1.4

If you need source, just google: controls.pas

Procedure is TWinControl.WMPaint

This line draws black:

BitBlt(DC, 0, 0, ClientRect.Right, ClientRect.Bottom, MemDC, 0, 0, SRCCOPY);