[Vm-dev] Re: [Pharo-dev] Touch Events VM changes

Clément Bera bera.clement at gmail.com
Tue Mar 11 11:35:31 UTC 2014


the right place is vm-dev. I put it in CC.


2014-03-11 11:37 GMT+01:00 J.F. Rick <self at je77.com>:

> As we move from mouse-keyboard devices to touch-based ones, it would be
> nice if we could unify touch development across the different Pharo
> platforms (iOS, Android, Windows 8, Linux, etc.), so that we can start to
> build touch-aware widgets and frameworks. Currently, there's a lot of
> interest but no unified movement. For instance, I've got a very nice
> multi-touch 27" computer that I run in Linux. I develop the applications in
> Pharo but I currently use a hack to get the touch events: I use OSProcess
> to start the mtdev2tuio application that takes touch input and sends it via
> TUIO. I then use a UDP socket to read the events on Pharo. If I am to share
> my work, I need to get beyond the hack. I (or rather Igor as I watched)
> investigated the possibility of using NativeBoost calls to do the same, but
> it would not work since mtdev2tuio has to run as superuser, meaning Pharo
> would have to run as superuser. We came to the conclusion that this must be
> a VM-level change.
> I'm not a VM hacker but would like to reach the people who maintain the
> linux and windows VM to see if this might not be a reasonable addition to
> the standard VM. There does seem to be standard support for touch events in
> XFree86, so it shouldn't be too large a change on Linux. I assume that
> Windows 8 similarly makes touch events available. Is this the right place
> to ask or is there another mailing list (e.g., the cog-vm)?
> Cheers,
> Jeff
> --
> Jochen "Jeff" Rick, Ph.D.
> http://www.je77.com/
> Skype ID: jochenrick
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