[Bug 58699] New: Profi cash 12 user interface is rendered mostly black

[WineHQ Bugzilla]

http://bugs.winehq.org/show_bug.cgi?id=58699

Bug ID: 58699
           Summary: Profi cash 12 user interface is rendered mostly black
           Product: Wine
           Version: 10.15
          Hardware: x86-64
               URL: https://web.archive.org/web/20250914090219/https://www
                    .vr-updates.de/gad/man/profi_cash_12_installer.exe
                OS: Linux
            Status: NEW
          Keywords: download, regression
          Severity: normal
          Priority: P2
         Component: win32u
          Assignee: [e-mail]
          Reporter: [e-mail]
                CC: [e-mail]
   Regression SHA1: c3f3ef24e8d1ebe49e8073e8e5b11de859951352
      Distribution: ---

Created attachment 79299
  --> http://bugs.winehq.org/attachment.cgi?id=79299
Profi cash 12 debug output

With wine-10.15, after launching Profi cash 12, its user interface is rendered
mostly black, which makes it unusable. This problem did not occur with
wine-10.14.

Regression testing identified the following commit:

c3f3ef24e8d1ebe49e8073e8e5b11de859951352 is the first bad commit
commit c3f3ef24e8d1ebe49e8073e8e5b11de859951352
Author: Rémi Bernon 
Date:   Thu Sep 11 15:45:36 2025 +0200

win32u: Don't store the window OpenGL drawables on the DCs.