Re: Question about üarent-frame changes

["Gerd Möllmann" <gerd.moellmann@gmail.com>]

martin rudalics <rudalics@gmx.at> writes:

>> What you describe makes sens for GUI frames, but seems to make little
>> sense for TTY frames, because frame visibility situation there is much
>> simpler.
>
> You mean because only one normal frame can be visible at any time.
> However, child frames complicate the situation considerably because
> Emacs itself has to take care of their visibility instead of the WM.

Yes, that's true but I think I have that, at least in principle.

The biggest problem for me in this area today is that "visibility" on
GUIs and ttys apparently is not the same thing. For example,
make-frame-visible seems to do nothing for tty frames. So I guess all
tty frames are always visible in the sense that frame::visible is
non-zero.

But that would be too easy of course, which is why frame::visible has 2
bits, and if the second bit is set the frame is "obscured" (happens with
C-x 5 2), which I'd call sort of invisible because it can't be seen but
that's of course naive.

Grumpy.