Informs the receiver that tracking of mouse moves (Mac OS) or touches (iPhone OS) has been cancelled for any reason.
Original signature is '- (BOOL)pointingDeviceCancelledEvent:(id)event;'


- event (Id)
- The OS event.

Whether the event was handled or not.

- Available in Monobjc Bridge: 10.6 (For Mac OS X 10.6 and later), 10.5 (For Mac OS X 10.5 and later)