[Bug 40642] macOS menubar integration

https://bugs.winehq.org/show_bug.cgi?id=40642

--- Comment #3 from Ken Thomases  ---
We could do something to integrate with the Mac menu bar for *some* menus.
Basically, a given window would need to use the standard Win32 menu APIs. Some
windows of some apps draw their menus using custom widgets. There's no reliable
way to detect that those are even menus, let alone extract their contents.

Such an app could have a mix of menus in windows vs. menus in the Mac menu bar,
which would be confusing and ugly.

For that reason and also because of invasive changes it would require in
non-Mac-specific parts of Wine, this would be a hack and probably wouldn't get
accepted.