[Bug 59378] New: Black rectangle box in foreground blocking application window on TaxAct 2025

[WineHQ Bugzilla]

http://bugs.winehq.org/show_bug.cgi?id=59378

            Bug ID: 59378
           Summary: Black rectangle box in foreground blocking application
                    window on TaxAct 2025
           Product: Wine
           Version: 11.0
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: trivial
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Created attachment 80331
  --> http://bugs.winehq.org/attachment.cgi?id=80331
Screenshot of black rectangle box issue

A black rectangle shaped box artifact is in the foreground which blocks a
portion of the application window. The box is recognized by the window manager,
always on top and cannot be moved or resized. First noticed when distribution
updated from 10.20 to 11.0 (Arch linux based Manjaro, XFCE DE). Present on
TaxAct 2023 through 2025 versions which use the webview2 API. Present on both
of my AMD based Desktop (Ryzen 7 8745HS) and laptop (Ryzen 7 7730U). Also
present in KVM/QEMU virtual machine running CachyOS KDE DE.

I have performed regression testing which identified commit 1039c8f7f31 as the
suspect. Patching dlls/winex11.drv/window.c with either of the two changes
below correct the issue.

Patch 1: Add SWP_NOACTIVATE as condition to hide window
-        !(swp_flags & SWP_HIDEWINDOW))
+        !(swp_flags & (SWP_HIDEWINDOW|SWP_NOACTIVATE)))

Patch 2: Add SWP_DEFERERASE as condition to hide window
-        !(swp_flags & SWP_HIDEWINDOW))
+        !(swp_flags & (SWP_DEFERERASE|SWP_HIDEWINDOW)))

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[Bug 59378] Black rectangle box in foreground blocking application window on TaxAct 2025

[WineHQ Bugzilla]

http://bugs.winehq.org/show_bug.cgi?id=59378

Steve Meisner <[e-mail]> changed:

           What    |Removed                     |Added
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                 CC|                            |[e-mail]

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