XInput 2 Multi-touch maxing out at 32 touch-points

Alex Averill alex.averill at
Tue May 12 22:06:17 UTC 2020

I am currently working on building an application using XInput 2 and
RawTouch events to capture touch positions and pass them to another
application. I am using a 3M Touchscreen that is reporting through X11 that
it supports 80 points, however I am only ever able to capture at most 32

Is there an inherent limit to the total number of
touchpoints/RawTouchEvents supported by XInput 2?

Alex Averill
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