some issue with multitouchscreen protocol

[jyg]

Hi. I contact you because I was working too on hidio a few months ago, trying to use it with my multitouchscreen laptop (linux). Unfortunately, the version found here (https://puredata.info/downloads/hidio/releases/0.1) is incompatible with Multi-touch (MT) Protocol (version B) touchscreens.
So I created a fork, and I explained the problem here https://github.com/jyg/PdMultitouch/tree/master/hidio .
I have to further investigate, but it seems that for some events, hidio_output_event(x, output_element) is triggered twice, (under linux, both in hidio.c and in hidio_linux.c). Could you check if this is true in mac version ?
I have no time to make a PR now, but as soon as I can, I'lll do it.
Thanks

[Benitoite]

Do you have any suggestions as to how I can test this? Do I need one of those touchscreens?

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On Jan 24, 2019, at 9:57 AM, Jean-Yves Gratius ***@***.***> wrote: Hi. I contact you because I was working too on hidio a few months ago, trying to use it with my multitouchscreen laptop (linux). Unfortunately, the version found here (https://puredata.info/downloads/hidio/releases/0.1) is incompatible with Multi-touch (MT) Protocol (version B) touchscreens. So I created a fork, and I explained the problem here https://github.com/jyg/PdMultitouch/tree/master/hidio . I have to further investigate, but it seems that for some events, hidio_output_event(x, output_element) is triggered twice, (under linux, both in hidio.c and in hidio_linux.c). Could you check if this is true in mac version ? I have no time to make a PR now, but as soon as I can, I'lll do it. Thanks — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub, or mute the thread.

[jyg]

I may suggest you to test hidio with some controllers you own (mouse, pad, joystick) to check if there aren't any events duplicated twice on the object's outlet when you move the controller, due to the fact that hidio_output_event(x, current_element) is called twice (line 528 of hidio.c and line 361 of hidio_linux.c or lines 234 and further of hidio_darwin.c).

I commented the lines 519-533 of hidio.c. You should try this and test if this changes something for you.