How to correctly subclass UIControl?

I don't want UIButton or anything like that. I want to subclass UIControl directly and make my own, very special control.

But for some reason, none of any methods I override get ever called. The target-action stuff works, and the targets receive appropriate action messages. However, inside my UIControl subclass I have to catch touch coordinates, and the only way to do so seems to be overriding these guys:

- (BOOL)beginTrackingWithTouch:(UITouch *)touch withEvent:(UIEvent *)event {
    NSLog(@"begin touch track");
    return YES;
}

- (BOOL)continueTrackingWithTouch:(UITouch *)touch withEvent:(UIEvent *)event {
    NSLog(@"continue touch track");
    return YES;
}

They get never called, even though the UIControl is instantiated with the designates initializer from UIView, initWithFrame:.

All examples I can find always use a UIButton or UISlider as base for subclassing, but I want to go closer to UIControl since that's the source for what I want: Fast and undelayed Touch coordinates.