Re: How to walk a Lisp_String?

[Eli Zaretskii]

> From: Po Lu <luangruo@yahoo.com>
> Cc: Eli Zaretskii <eliz@gnu.org>,  emacs-devel@gnu.org
> Date: Fri, 02 Sep 2022 09:08:10 +0800
> 
> After you obtain the substring containing characters that can be
> displayed with a single font

Do menu items use different fonts and colors?  Can you give an example
of such menu items?

If each menu item always uses the same face, then face information can
be retrieved once for each menu item.  That includes both colors and
font information.