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Re: Touch events

From: Alan Third
Subject: Re: Touch events
Date: Sun, 3 Sep 2017 10:14:30 +0100
User-agent: Mutt/1.7.2 (2016-11-26)

On Wed, Jun 28, 2017 at 09:50:27PM +0100, Alan Third wrote:
> I’ve been looking into the Xorg side of touch events and it doesn’t
> have built‐in gesture support, so I think I’ll have to code that
> myself. I was thinking it could maybe be worth passing the touch
> events up to lisp and doing gesture recognition in it. That would, I
> think, also allow us to handle touch screen devices better as we
> wouldn’t have to rely on mouse emulation.

I finally got round to looking at this properly and have very quickly
realised it’s probably beyond me. In order to receive touch events we
need to migrate to XInput2, which seems to be completely different
from XInput1.

I don’t know how much work would be involved as I have no experience
with X programming, but I suspect it’s quite a lot.

I also don’t know if it would introduce compatibility issues with
older versions of X.
Alan Third

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