Re: frame-visible-p and suspend-tty

[Eli Zaretskii <eliz@gnu.org>]

> From: Chong Yidong <cyd@stupidchicken.com>
> Cc: emacs-devel@gnu.org
> Date: Sat, 17 Jan 2009 14:28:41 -0500
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> > The documentation of frame-visible-p says:
> >
> >     On a text-only terminal, all frames are considered visible, whether
> >     they are currently being displayed or not, and this function returns
> >     @code{t} for all frames.
> >
> > What about a text-only terminal that has been suspended?  The frames
> > on such a terminal are neither visible nor being updated, and yet this
> > function seems to still return t for them (unless my testing was
> > faulty).  That doesn't sound right.
> 
> IIUC, a text terminal cannot be suspended unless it is the only existing
> terminal.

??? suspend-tty works _only_ if at least one more terminal exists, see
its docs.