Instance Method

trackScrollButtons:

Tracks the scroll buttons and sends action messages to the receiver’s target.

Declaration

- (void)trackScrollButtons:(NSEvent *)event;

Discussion

This method is invoked automatically when the receiver receives theEvent mouse-down event in a scroll button; you should not invoke this method directly.

Special Considerations

This method is not invoked in macOS 10.7 and later.

See Also

Event Handling

hitPart

A part code indicating the manner in which the scrolling should be performed.

- trackKnob:

Tracks the knob and sends action messages to the receiver’s target.