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From: Ted Zlatanov <tzz@lifelogs.com>
To: emacs-devel@gnu.org
Subject: Re: How to know if a key is pressed without getting it?
Date: Sun, 26 Sep 2010 20:20:36 -0500	[thread overview]
Message-ID: <871v8gyobf.fsf@lifelogs.com> (raw)
In-Reply-To: 4C9FCC19.5020804@ig.com.br

On Sun, 26 Sep 2010 19:41:29 -0300 Vinicius Jose Latorre <viniciusjl@ig.com.br> wrote: 

VJL> The problem that I'm trying to fix is an specific slow down in
VJL> whitespace when user holds space key pressed at end of a line. The
VJL> slow down is caused by whitespace which call jit-font-lock-refontify
VJL> each time the user press a space at end of line. If it is possible to
VJL> detect that user is still pressing a key, I could fix the slow down by
VJL> not calling jit-font-lock-refontify while user is pressing a key.

I wonder if this could be handled with an Emacs facility, e.g.:

; triggers when it's held less than 30 secs
(global-set-key [(hold < 30.0) (shift f4)] 'something)

; triggers when it's held 30 secs or more
(global-set-key [(hold >= 30.0) (shift f4)] 'something-else)

Just an idea...  Forgive the noise if it's nonsense :)

Ted




  parent reply	other threads:[~2010-09-27  1:20 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-09-26 15:02 How to know if a key is pressed without getting it? Vinicius Jose Latorre
2010-09-26 15:53 ` Óscar Fuentes
2010-09-26 22:15 ` Stefan Monnier
2010-09-26 22:41   ` Vinicius Jose Latorre
2010-09-26 23:11     ` Stefan Monnier
2010-09-26 23:25       ` Lennart Borgman
2010-09-27  1:08       ` Vinicius Jose Latorre
2010-09-27 20:30         ` Stefan Monnier
2010-09-27  1:20     ` Ted Zlatanov [this message]
2010-09-26 22:46 ` Andreas Schwab
2010-09-26 23:21   ` Vinicius Jose Latorre
2010-09-26 23:36     ` Stefan Monnier
2010-09-27  0:29       ` Vinicius Jose Latorre

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