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Re: Emacs touch interface

From: Lars Magne Ingebrigtsen
Subject: Re: Emacs touch interface
Date: Mon, 04 Jan 2016 21:10:11 +0100
User-agent: Gnus/5.130014 (Ma Gnus v0.14) Emacs/25.1.50 (gnu/linux)

Multitouch and gestures on GNU/Linux is a rather painful subject,
apparently.  If you google for it, you get a lot of outdated
information, but apparently the modern way to get access to gestures is
via a library called "geis":


Here's an example program that uses this stuff:


With geis, you have access to gestures like "three fingered drag to the
left" and "four finger pinch" which you can then map to any action you

  (local-set-key [(pinch three-fingered outwards)] 'report-emacs-bug)


Getting this stuff into Emacs looks like a bigger project than I had
thought...  and you'd need completely separate implementations on
GNU/Linux, Windows and OS X...

So I'm not going to look into this any further, I think.  The
aforementioned Touchégg program provides an external mapper from
gestures to key strokes, and I'm just going to use that for my one use
case (an Emacs-based music player).

(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

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