[Bug 34889] New: Drawing to device context outside message loop does not update window

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=34889

             Bug #: 34889
           Summary: Drawing to device context outside message loop does
                    not update window
           Product: Wine
           Version: 1.7.4
          Platform: x86-64
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: winex11.drv
        AssignedTo: wine-bugs at winehq.org
        ReportedBy: milasudril at gmail.com
    Classification: Unclassified


Created attachment 46495
  --> http://bugs.winehq.org/attachment.cgi?id=46495
Source code demonstrating the issue.

When drawing to a window DC outside the message loop, the window does not
update (see attachment).

On Windows: There is a flickering rectangle in the upper corner of the window
On Wine: The rectangle is not affected until a message is posted from the
system

Example compiled and tested with g++ 4.7.1 TDM-GCC 64 bit on Windows 7 64 bit.
Compiler command:

g++ test.cpp -mwindows
a.exe

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