Subject: bug#47234: 28.0.50; frame-inner-height fails without window system on tab-bar-height

From: Eli Zaretskii <[email-masked]>
Date: Thu, 18 Mar 2021 17:53:33 +0200

> From: "Basil L. Contovounesios" <[email-masked]>
> Cc: [email-masked],  [email-masked]
> Date: Thu, 18 Mar 2021 15:22:48 +0000
> 
> (For example, I don't know when one would pick Ftab_bar_height over the
> frame property tab-bar-lines - maybe the latter can be used
> unconditionally?)

Not AFAIU, because Ftab_bar_height returns its result in pixels, not
in lines.  On TTY frames, each line is 1 pixel.