http://bugs.winehq.org/show_bug.cgi?id=22987
--- Comment #21 from Dmitry Timoshkov dmitry@codeweavers.com 2010-06-01 22:19:15 --- (In reply to comment #19)
That may be difficult. As it is currently, text/bmp and PIXMAP are treated as different Windows clipboard formats.
PIXMAP is not a Windows clipboard format. I think only DDB and DIB are supported, both being synthesizable.