Instance Property

scrollingDeltaX

The scroll wheel’s horizontal delta.

Declaration

@property(readonly) CGFloat scrollingDeltaX;

Discussion

This is the preferred property for accessing NSScrollWheel delta values. When hasPreciseScrollingDeltas is NO, your application may need to modify the raw value before using it.

See Also

Scroll Wheel and Flick Events

hasPreciseScrollingDeltas

A Boolean value that indicates whether precise scrolling deltas are available.

scrollingDeltaY

The scroll wheel’s vertical delta.

momentumPhase

The momentum phase for a scroll or flick gesture.

phase

The phase of a gesture event, such as a magnify, scroll, or pressure change.

NSEventPhase

Constants that represent the possible phases during an event phase.

trackSwipeEventWithOptions:dampenAmountThresholdMin:max:usingHandler:

Allows tracking and user interface feedback of scroll wheel events.

NSEventSwipeTrackingOptions

Constants that specify swipe-tracking options.

directionInvertedFromDevice

A Boolean value that indicates whether the user has changed the device inversion.