http://bugs.winehq.org/show_bug.cgi?id=28034
--- Comment #1 from Huw Davies huw@codeweavers.com 2011-08-09 08:35:06 CDT --- Created an attachment (id=35897) --> (http://bugs.winehq.org/attachment.cgi?id=35897) This should do it.
SetBitmapBits can set partial scanlines. This patch uses a clip region to achieve that, another solution would be to call PutImage twice. Either way requires additions to the nulldrv implementation.