Are inserted images cached somehow?

Are inserted images cached somehow?

[Peter S Galbraith]

If I do the following to insert an image:

  (insert-image '(image :type jpeg :file "/tmp/img_3818.jpg"))

Then I modify the image file /tmp/img_3812.jpg outside of Emacs.
Then I redo:

  (insert-image '(image :type jpeg :file "/tmp/img_3818.jpg"))

I get the same image as before inserted.  I do _not_ get the modified
version.  I can't figure out what Emacs is doing to cache the image
and therefore make it's display unmodifiable.

This is using emacs 21.2 or 21.3, and also using image.el from Emacs CVS
(which fixes a few bugs I was seeing).

Is there a way to do what I want to do?

Thanks!
Peter

Re: Are inserted images cached somehow?

[Oliver Scholz]

Yes, images are cached. See (info "(elisp)Image cache").


    Oliver
-- 
29 Vendémiaire an 212 de la Révolution
Liberté, Egalité, Fraternité!

Re: Are inserted images cached somehow?

[Jesper Harder]

Peter S Galbraith <p.galbraith@globetrotter.net> writes:

> I get the same image as before inserted.  I do _not_ get the
> modified version.  I can't figure out what Emacs is doing to cache
> the image and therefore make it's display unmodifiable.

See the section "Image Cache" in the Emacs Lisp Manual.

Re: Are inserted images cached somehow?

[Peter S Galbraith]

Jesper Harder <harder@myrealbox.com> wrote:

> See the section "Image Cache" in the Emacs Lisp Manual.

Oliver Scholz <alkibiades@gmx.de> wrote:

> Yes, images are cached. See (info "(elisp)Image cache").

Thanks to both of you.  My sanity is restored.  Now I wonder why I
didn't see that part of the manual before.

Peter

Re: Are inserted images cached somehow?

[Stefan Monnier]

> Thanks to both of you.  My sanity is restored.  Now I wonder why I
> didn't see that part of the manual before.

You lacked faith, that's all.  You have to beleive it to see it.


        Stefan