Issues Handling Acer T232HL Multi Touch Events with C#

Hi,

I received a brand new Multitouch Acer T232HL screen for my developments in C#. I tested the multitouch and it worked perfectly with Paint, I can control my computer with only touch. It's great but it is not the first use I need of it.

I am currently developping a multimodal application with C#. That means I need to be able to control it using several control types (Keyboard+Mouse, Touch, Speech, Gestures, Eyes ...). The problems occur when I try to use my brand new screen with C# samples.

None of them can handle the touch events sent by the screen. I used a little tool called Snoop which allow me to spy my events mapping on my WPF application and no touch events appears to be detected by my application.

I also tried to reinstall the drivers but nothing changed.

Does anyone knows something about my problem?

Thanks! Baptiste

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Blayn-Acer

Sorry for the delay in answering your question. I had to do some research on your issue. The monitor is most likely reporting the input as a tablet device, and not a USB mouse. If you are trying to detect mouse touch events, your code would likely not detect any. You may try altering your code to see if it can detect the touches as a tablet device to see if that works.

Unfortunately, we do not have plans to offer updates to the driver that would change the way the device reports.

strattist

We managed to see the touch events of the screen. The thing is there is two process runing to make the T232HL works with Windows :

wisptis.exe runned by the system
wisptis.exe runned by the user

If we force the user process to stop, our programm is able to see any touch event on the screen. This solution is not clean at all but it works for us.

If you have any other suggestion for that, feel free to tell us about it !

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