Re: "Final" version of tty child frames

[Eli Zaretskii]

> Date: Thu, 12 Dec 2024 00:11:01 -0500
> From: Jared Finder <jared@finder.org>
> Cc: Eli Zaretskii <eliz@gnu.org>, emacs-devel@gnu.org, rudalics@gmx.at
> 
> I think it would be good for unimplemented features to communicate that 
> state to the user so users know clearly what is going on.  Right now the 
> error a user sees is "Can’t change the ‘minibuffer’ parameter of this 
> frame". Wouldn't it be better to have make-terminal-frame (a brand new 
> function with no existing clients to support) error with something like 
> "Minibuffer only frames are not supported in terminals"?

I think minibuffer-only frames _are_ implemented on TTYs (albeit not
very useful there).  They are not implemented as child frames, I
think.

But yes, emitting an explicit error message about something not
implemented would be definitely better.