[Bug 58845] New: Mouse position offset in Wine applications after display resolution change via VNC session (e.g. Notepad)

[WineHQ Bugzilla]

http://bugs.winehq.org/show_bug.cgi?id=58845

            Bug ID: 58845
           Summary: Mouse position offset in Wine applications after
                    display resolution change via VNC session (e.g.
                    Notepad)
           Product: Wine
           Version: 10.0
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: wine-bugs(a)winehq.org
          Reporter: rikul(a)inbox.ru
      Distribution: ---

When running a Wine application (for example, Wine’s own Notepad) inside a
remote session (such as VNC) that supports dynamic resolution changes, mouse
coordinates become desynchronized after resizing the remote desktop.

After a screen resolution change triggered by resizing the VNC client window,
mouse clicks no longer align with the visual elements of the Wine window —
e.g., clicking on menu items doesn’t work because the clickable area is
shifted.

Steps to reproduce:
1. Start a Linux desktop session that supports dynamic resolution change (for
example, through a VNC server such as tigervnc-server).
2. Connect to this session using a VNC client that can adjust resolution when
the window is resized.
3. Launch Wine Notepad.
4. Resize the VNC client window to a smaller size so that the Linux desktop
resolution changes accordingly.
5. Then maximize the VNC client window again to restore a larger resolution.

Actual result:
* The mouse pointer no longer matches the clickable positions in the Wine
window.
* For example, clicking on the “File” menu in Notepad does nothing or opens the
wrong menu item.
* The cursor appears visually over one element, but Wine receives input at a
different coordinate.

Expected behavior:
After the display resolution changes, Wine should correctly update coordinate
mappings so that mouse input remains aligned with visible UI elements.

Testing environment:
Wine version: 10.0+ (also tested on latest master)
Distribution: RHEL 7.9, Rocky Linux 8.10, Rocky Linux 9.6.
VNC server: tigervnc-server
VNC client: TigerVNC Viewer
Display server: X11
Architecture: x86_64

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