[Bug 53716] New: Warlords 3: Darklords Rising: opening dialog window has messed up colors

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=53716

            Bug ID: 53716
           Summary: Warlords 3: Darklords Rising: opening dialog window
                    has messed up colors
           Product: Wine
           Version: 7.14
          Hardware: x86-64
               URL: https://www.fileplanet.com/archive/p-27637/Warlords-II
                    I-Darklords-Rising-Demo
                OS: Linux
            Status: NEW
          Keywords: download, regression
          Severity: minor
          Priority: P2
         Component: win32u
          Assignee: wine-bugs(a)winehq.org
          Reporter: gyebro69(a)gmail.com
                CC: jacek(a)codeweavers.com
   Regression SHA1: 47dd8a6a9b1193ec1656cdf04117b94a3cf07025
      Distribution: ---

Created attachment 73147
  --> https://bugs.winehq.org/attachment.cgi?id=73147
Before -> after image

This was tested with GOG.com version of the game but can also be reproduced
with the original demo version.
When you start the game the opening dialog (where you select game mode/screen
resolution) has strange colors.

The demo uses a 16-bit installer which is currently affected by bug #53646.
Winver needs to be Win95/98.

This is a regression from Wine-7.14, caused by

commit 47dd8a6a9b1193ec1656cdf04117b94a3cf07025
Author: Jacek Caban <jacek(a)codeweavers.com>
Date:   Sun Jul 10 16:15:10 2022 +0200

    win32u: Use syscall interface for more user painting functions.

Nothing obvious is visible in the terminal output.

Darkdemo.zip  (20M)
md5sum: 30f5908552d720e8b5361e0656772da8

wine-7.17-224-g52a83ffe4ef

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[Bug 53716] Warlords 3: Darklords Rising: opening dialog window has messed up colors

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=53716

--- Comment #1 from Jacek Caban <jacek(a)codeweavers.com> ---
The problematic syscall is NtUserRedrawWindow. The problem is that it causes a
WM_PAINT message, the application crashes while processing it and the crash
gets ignored. Prior to this commit, the crash also happened, but was propagated
to application code and handled there.

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