How to cancel a sequence of UITouch events?

Question

I have a UIImage view that responds to touch events. I want to cancel the touch sequence, i.e., further calls to touchesMoved:, if the touch goes o

Answer 1

On iOS5 there seems to be a private method in UITouch

-(void)setSentTouchesEnded:(BOOL)ended;

Depending on apple's implementation it could stop sending events

Another way of doing so would be using associative objects

- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event
{
    if ([(NSNumber *)objc_getAssociatedObject(touch, &outKey) boolValue])
        return;
    if (sometouchisoutsideofview) {
        objc_setAssociatedObject(touch, &outKey, [NSNumber numberWithBool:YES], OBJC_ASSOCIATION_RETAIN);
    }
}