// openFrameworks calls this function before every draw cycle
void HelloMultitouch::update(){
	// For consistency, we try to run GestureWorks at a constant rate - about 60Hz in this case
	clock_t this_tick(clock());
	if (this_tick - last_tick < 16) return;
	last_tick = this_tick;

	// Tell GestureWorks to process all of the data since the last frame
	GestureWorks::Instance()->ProcessFrame();

	// Get all the point events from the current frame
	std::vector<gwc::PointEvent> point_events = GestureWorks::Instance()->ConsumePointEvents();
	handlePointEvents(point_events);
}