[Bug 1347] Screen is wiped/blanked on usage of DirectDraw (black screen/desktop)

http://bugs.winehq.org/show_bug.cgi?id=1347

--- Comment #41 from Dan Kegel   2009-01-05 07:44:23 ---
In
http://forums.virtualdub.org/index.php?act=ST&f=2&t=16326&s=354f...
the author of VirtualDub says:

"all I'm doing is blitting to the primary surface from an offscreen surface
using a destination rect and through a clipper. Wine is horribly broken in this
regard in that it ignores both the subrect and the clipper and blits over the
primary surface instead. Whoever's triaging this bug has latched onto a corner
case that's not the root problem. VirtualDub works perfectly fine in Vista with
Aero Glass enabled.

As for Wine, I do like it, mainly because it's the closest I can get to seeing
the source code of Windows in a useful fashion. I've referenced the Wine source
code several times to figure out bizarre behavior in Windows, such as
WM_NCHITTEST bogosity between parent and child windows on different threads.

The attitude of the developers on this bug is bizarre. This behavior is valid
and working on both Windows XP and Vista, and for some reason they're blaming
it on the apps. If you look at the list of apps affected, it's pretty diverse,
and many of these have already been fixed for Vista but still break on Wine."

Stefan, can you address his comments?