---
title: scrollingDeltaX
framework: appkit
role: symbol
role_heading: Instance Property
path: appkit/nsevent/scrollingdeltax
---

# scrollingDeltaX

The scroll wheel’s horizontal delta.

## Declaration

```swift
var scrollingDeltaX: CGFloat { get }
```

## Discussion

Discussion This is the preferred property for accessing NSScrollWheel delta values. When hasPreciseScrollingDeltas is false, your application may need to modify the raw value before using it.

## See Also

### Getting scroll wheel and flick events

- [deltaX](appkit/nsevent/deltax.md)
- [deltaY](appkit/nsevent/deltay.md)
- [deltaZ](appkit/nsevent/deltaz.md)
- [hasPreciseScrollingDeltas](appkit/nsevent/hasprecisescrollingdeltas.md)
- [scrollingDeltaY](appkit/nsevent/scrollingdeltay.md)
- [momentumPhase](appkit/nsevent/momentumphase.md)
- [isDirectionInvertedFromDevice](appkit/nsevent/isdirectioninvertedfromdevice.md)