[Bug 29503] New: Stucuk's Setup System patcher often fails with 'Canvas does not allow drawing' error message

http://bugs.winehq.org/show_bug.cgi?id=29503

Bug #: 29503
           Summary: Stucuk's Setup System patcher often fails with 'Canvas
                    does not allow drawing' error message
           Product: Wine
           Version: 1.3.36
          Platform: x86
               URL: http://www.fileplanet.com/207230/200000/fileinfo/Dark-
                    Horizon-Patch-v1.0.6.1
        OS/Version: Linux
            Status: NEW
          Keywords: download, Installer
          Severity: normal
          Priority: P2
         Component: -unknown
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]
    Classification: Unclassified

Created attachment 38206
  --> http://bugs.winehq.org/attachment.cgi?id=38206
screenshot (patcher running in virtual desktop)

The installer of the patch made for Dark Horizon uses a Stucuk's Setup System
according to the file properties. The installer of the community patch made for
Original War also uses this kind of patcher, sharing the same problem.

The patcher for Dark Horizon consists of nearly 3000 small files. The
installation process doesn't take long (15-20 seconds). At some point during
the install process, the patcher is interrupted with an error message:
'Setup Thread Error: Canvas does not allow drawing', and the installer quits
prematurely.
This happens fairly often (maybe 8 times out of 10 attempts), but sometimes the
patcher finishes the job without erroring out.

Before the error message pops up, text which normally appears inside the
installer window also printed and overwritten several hundreds of times in the
upper left corner of the screen (see attached screenshot). This happens both in
virtual desktop mode and in full-screen.

To reproduce the problem with the patcher made for Dark Horizon you don't have
to download the demo for the game; the patch can be installed alone in a
selected directory anywhere inside a wineprefix.