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Filter Trackball Events, Quartz Event Taps



Hi there!

This is my first posting to this list so I hope I'm doing everything right.

I'm quite new to developing on mac, so maybe one of you can give me a kickoff regarding Quartz Event Services. I'm trying to use an additional USB trackball to control some of my applications. My problem is that the trackball is recognized as a system mouse, so it controls the system cursor, too. What I want to do is to deactivate the trackball as a system pointing device. I think I can do this if I filter the trackball events with Quartz Event Taps. Is this approach correct?

Or is there a better way to have the USB-connected trackball not acting as a system mouse?


Thank you very much for any kind of help.

Janos
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