I am developing software for use on a theatrical lighting desk, using Arduinos to read and write output to a physical console I am developing.
However, one idea I had was to use a trackball mouse embedded into my desk to control lights, which is fairly easy to program in Processing. However, if I did this, I couldn't really use the mouse for anything else, and plumbing it into an Arduino is not particularly easy.
So my question is: Can I read the positions of more than one mouse. I understand this is partially an issue with Windows, but is there a way to do it?