Informs the receiver that tracking of touches has been cancelled for any reason..
Original signature is '- (void)touchesCancelledWithEvent:(NSEvent *)event'
Available in Mac OS X v10.6 and later.


- event (NSEvent)
- An event object representing the cancellation of a touch event.

- Available in Monobjc Bridge: 10.6 (For Mac OS X 10.6 and later)