Re: How to find out whether an image is displayed anywhere?

[Stefan Monnier]

> Is there a way to query Emacs whether an image is actually displayed
> anywhere?  I looked through image.el, and I couldn't find anything...

There is a way: fontification-functions (aka "jit-lock").  It's a bit
round-about, but with enough work it should be possible to use it for
that purpose (e.g. use a timer to remove the `fontified' property every
N seconds and if it's still nil after an additional M seconds, then turn
off animation.  Or maybe better: after the animation timer fires don't
change the image yet but instead only remove the fontified property and
then change the image from fontification-functions).


        Stefan