[Bug 7451] New: Unreal Editor bitblt fails and crashes

[Wine Bugs]

http://bugs.winehq.org/show_bug.cgi?id=7451

Summary: Unreal Editor bitblt fails and crashes
           Product: Wine
           Version: 0.9.30.
          Platform: PC
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: major
          Priority: P2
         Component: wine-gdi-(printing)
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]

The Unreal Editor (for Unreal Tournament) fails when you start it up. This is
the message from the editor:

Critical: appError called:

Critical: BitBlt failed: Success

Critical: Windows GetLastError: Success (0)

Being a hackish type of person I go into /dlls/bitblt.c and change the bitblt
function like this:
return ret;

to:

if (ret == 0)
    ret = 1;
return ret;

and now it bleeding works. Of course that's a hack, not a real fix.

Ret = 0 seems to happen in this case when the first if-case ret is being set by:
ret = dcDst->funcs->pBitBlt( dcDst->physDev, xDst, yDst, width, height, dcSrc ?
dcSrc->physDev : NULL, xSrc, ySrc, rop ); that's line 72/73.

For some weird reason dcDst->funcs->pBitBlt( dcDst->physDev, xDst, yDst, width,
height, dcSrc ? dcSrc->physDev : NULL, xSrc, ySrc, rop ); returns zero, where it
probably should return 1. In fact most cases it does return 1, just in some
occasions it doesn't. I did some simple debugging for that.

I don't have the skills to find out anything else, it's all hocus pocus from
here on in. Let me know if I can help.