Re: Hiding hidden image

[David Bremner <david@tethera.net>]

David Bremner <david@tethera.net> writes:

> I also noticed that it does not happen for all png image parts, but the
> pattern of what works and what does not is also unclear to me so far. I
> observed that the following function
>
> (defun hideit ()
>   (interactive)
>   (overlay-put (car (last (overlays-at (point)))) 'invisible t))

I think I'm missing something about overlays. The following code
does not work (i.e. hide the image) unless I extend the overlay to the
left.

(let ((buf (get-buffer-create "image-buffer"))
      (img (find-image '((:type xpm :file "attach.xpm"))))
      (overlay nil))
  (switch-to-buffer buf)
  (insert "0123456789")
  (insert-image img "x")
  (insert "0123456789")
  (insert "\n")
  (setq overlay (make-overlay 11 12))
  (overlay-put overlay 'invisible t)
  (message "props=%s" (overlay-properties overlay)))

This behaviour is the same in Emacs 28.2, unlike the problem Jon
describes with notmuch-emacs.