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Re: Stylus drawing input?

From: Eli Zaretskii
Subject: Re: Stylus drawing input?
Date: Tue, 24 Jan 2023 19:00:44 +0200

> From: Dov Grobgeld <dov.grobgeld@gmail.com>
> Date: Tue, 24 Jan 2023 17:55:15 +0200
> Cc: Luangruo@yahoo.com, emacs-devel@gnu.org, tomas@tuxteam.de
> But I still don't understand how emacs can display such an image as an
> "overlay" on top of other buffer contents.

It cannot.  Emacs treats images as large characters, so all we are
capable of doing is display images in-line.

> (Having the notion of layers would also be nice for doing
> presentations in emacs, as you can then have some static graphics as a
> background image.)

That would need a complete redesign of the current display engine,
AFAIU.  Patches welcome.

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