bug#4566: 23, NS: frames re-appear when app switching

[Lars Ingebrigtsen]

David Reitter <david.reitter@gmail.com> writes:

> When starting up the NS port (trunk, on OS X 10.6.1), and then hiding
> the frame:
>
> (make-frame-invisible nil t)
>
> and then switching away and back to Emacs (Command-Tab, Command-Tab),
> the frame magically re-appears.
> It shouldn't do that (it's non-standard).

(I'm going through old bug reports that unfortunately weren't resolved
at the time.)

This behaviour is still present in Emacs 29, and it does seem to be
non-standard (i.e., other Macos programs don't seem to do this?)

Perhaps Alan has an opinion here; added to the CCs.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no