Re: Documentation of tab-bar-show and friends

[Eli Zaretskii]

> From: Juri Linkov <juri@linkov.net>
> Cc: emacs-devel@gnu.org
> Date: Thu, 09 Sep 2021 10:54:37 +0300
> 
> >> >   *** The tab bar is frame-local when 'tab-bar-show' is a number.
> >> >   Show/hide the tab bar independently for each frame, according to the
> >> >   value of 'tab-bar-show'.
> >> >
> >> > What does it mean "frame-local" in this case?  Does it mean one should
> >> > use a frame parameter called tab-bar-show?  Or does it mean something
> >> > else?
> >>
> >> This means it affects each frame separately.
> >
> > How does it do that?  It's a good-faith question: I don't understand
> > how you make that happen, except by using frame parameters.
> 
> Indeed, 'toggle-frame-tab-bar' modifies two frame parameters:
> 'tab-bar-lines' and 'tab-bar-lines-keep-state'.

I'm still missing something: how does one go about setting tab bar
independently for several frames?  NEWS says "according to the value
of tab-bar-show", but that variable is global, so setting it affects
all the frames, no?