http://bugs.winehq.org/show_bug.cgi?id=2680
--- Comment #33 from Stefan Dösinger stefandoesinger@gmx.at 2007-12-17 15:24:43 --- This should fix all apps that expect 32 from GetDeviceCaps(BITSPIXEL). I don't know if there are any other causes of 32 bit confusion, but if there aren't any, then yes, it should fix all those bugs.
It will not fix 15/16 bpp confusion, but it should be easier to fix now.
I am waiting for the first regression reports to come in...