[IAEP] [support-gang] XO-4 Questions After Viewing CES video

[Bert Freudenberg]

On 11.01.2013, at 05:22, Paul Fox <pgf at laptop.org> wrote:

> bert wrote:
>> 
>> On 10.01.2013, at 21:19, John Watlington <wad at laptop.org> wrote:
>> 
>>>> More recent versions of the XO-4 touchscreen firmware should allow
>>>> a many-finger keyboard.  I hope someone with an XO-4 is working
>>>> on a demo!
>> 
>> Oh, I must have missed the announcement.  How is the raw touch data
>> exposed?
> 
> sorry!  a few releases of the touchscreen firmware ago, the max number
> of touches quietly went from 2 to 4.  full positioning is still only
> accurate with just 2, but the touchscreen will attempt to keep track
> of 4 if they're separable in at least one axis.  so there's nothing
> special for a program to do (i.e., no raw data to fetch).
> 
> i haven't experimented with the feature much, but gonzalo has the
> beginnings of a nice little piano playing activity floating around
> somewhere.

Ah, it does work indeed, see screenshot at

http://activities.sugarlabs.org/en-US/sugar/addon/4611

Thanks!

- Bert -