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Sometimes when I run a process if there is an error during the process the emacs icon on the windows taskbar lights up, so if I'm in an other app I can see something happened there.

I'd like to use this indication in my elisp programs too. Is there a lisp call which makes the emacs icon light up on the taskbar?

  • Not sure, but maybe this helps? (let ((visible-bell t)) (ding t)) – Drew Sep 5 '19 at 13:54
  • @Drew I tried it like this (progn (sleep-for 3) (let ((visible-bell t)) (ding t))) and it did highlight the emacs icon when I was in an other app. If you post this as an answer I'll accept it. Thanks. – Tom Sep 5 '19 at 15:33
  • OK, I added an answer. – Drew Sep 5 '19 at 15:39
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Try using function ding with variable visible-bell bound to non-nil. For example:

(let ((visible-bell t)) (ding t))

If you need to impose a delay before flashing then you can use sit-for or sleep-for. For example:

(let ((visible-bell t))
  (sleep-for 2) ; Wait 2 seconds
  (ding t)) ; Flash screen
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