Re: Tick Reduction

[Eli Zaretskii]

> From: Lars Ingebrigtsen <larsi@gnus.org>
> Cc: dgutov@yandex.ru,  stefankangas@gmail.com,  emacs-devel@gnu.org
> Date: Thu, 25 Nov 2021 15:07:44 +0100
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> > The value of mode-line-percent-position is '(-3 "%p").  So in the
> > second example you propertize the thing which Emacs produces from the
> > %p mode-line format.  But %p produces a C string, and C strings cannot
> > have text properties.  That's why handle_display_prop isn't called: it
> > is never called for C strings we display.
> 
> But...  the displayed string does end up with a text property --
> help-echo etc.  So text properties work fine, I think?  It's just that
> we don't call the `display' handler.

I didn't say text properties on the mode line didn't work, I just
explained why we disregard text properties that are put on C strings.