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Hi Tom, I think that is the technique to use. The question I see is what form it should take. It would be great to have it integrated in Jambu (thanks Stephen). That could be done by having it add events to the switch event queue as got by Switch.getEvent() http://www.oatsoft.org/trac/jambu/browser/trunk/src/Switch.py Otherwise a more general purpose input device or adding synthetic events to opengazer would work. How do you detect switch activations? Dwell? On 02/10/2007, Tom Nabarro <[log in to unmask]> wrote: > > 511" > The next step is to start interpreting the calculated gaze positions into a > switch activation. opengazer outputs everything to a port as it works, which > should make things a bit easier. Any suggestions on good assistive software > I can play around with? I hear there's this great "Jambu" thing... :) > > " > > in response to this from Stephen, if you need anything done on Windows I > could write a socket application to listen for that port and then interpret > the gaze positions to detect for switch activationbased on the threshold > method at first. I might have the wrong end of the stick, but if any of > this sounds useful let me know. > > ________________________________ > Get free emoticon packs and customisation from Windows Live. Pimp My Live! -- Steve Lee -- Open Source Assistive Technology Software PowerTalk - your presentations can speak for themselves www.fullmeasure.co.uk