this is an example of how to use EventInjector class:
EventInjector.TrackwheelEvent eDown = new EventInjector.TrackwheelEvent(
EventInjector.TrackwheelEvent.THUMB_ROLL_DOWN , 1,
yes we cannot do anything to phonecalls.....only listen to them. There isn't enough api sipport for this. and rim is no mood to provide it sooner....i managed to end a phone call using EventInjector class...it worked fine for 8100 but failed royally for other phones.
but yet am hopefull that some day there will enough support for handling ph calls.