---
title: CGEventField.scrollWheelEventFixedPtDeltaAxis2
framework: coregraphics
role: symbol
role_heading: Case
path: coregraphics/cgeventfield/scrollwheeleventfixedptdeltaaxis2
---

# CGEventField.scrollWheelEventFixedPtDeltaAxis2

Key to access a field that contains scrolling data. The scrolling data represents a line-based or pixel-based change in horizontal position since the last scrolling event from a Mighty Mouse scroller. The scrolling data uses a fixed-point 16.16 signed integer format. For example, if the field contains a value of 1.0, the integer 0x00010000 is returned by CGEventGetIntegerValueField. If this key is passed to CGEventGetDoubleValueField, the fixed-point value is converted to a double value.

## Declaration

```swift
case scrollWheelEventFixedPtDeltaAxis2
```

## See Also

### Constants

- [CGEventField.mouseEventNumber](coregraphics/cgeventfield/mouseeventnumber.md)
- [CGEventField.mouseEventClickState](coregraphics/cgeventfield/mouseeventclickstate.md)
- [CGEventField.mouseEventPressure](coregraphics/cgeventfield/mouseeventpressure.md)
- [CGEventField.mouseEventButtonNumber](coregraphics/cgeventfield/mouseeventbuttonnumber.md)
- [CGEventField.mouseEventDeltaX](coregraphics/cgeventfield/mouseeventdeltax.md)
- [CGEventField.mouseEventDeltaY](coregraphics/cgeventfield/mouseeventdeltay.md)
- [CGEventField.mouseEventInstantMouser](coregraphics/cgeventfield/mouseeventinstantmouser.md)
- [CGEventField.mouseEventSubtype](coregraphics/cgeventfield/mouseeventsubtype.md)
- [CGEventField.keyboardEventAutorepeat](coregraphics/cgeventfield/keyboardeventautorepeat.md)
- [CGEventField.keyboardEventKeycode](coregraphics/cgeventfield/keyboardeventkeycode.md)
- [CGEventField.keyboardEventKeyboardType](coregraphics/cgeventfield/keyboardeventkeyboardtype.md)
- [CGEventField.scrollWheelEventDeltaAxis1](coregraphics/cgeventfield/scrollwheeleventdeltaaxis1.md)
- [CGEventField.scrollWheelEventDeltaAxis2](coregraphics/cgeventfield/scrollwheeleventdeltaaxis2.md)
- [CGEventField.scrollWheelEventDeltaAxis3](coregraphics/cgeventfield/scrollwheeleventdeltaaxis3.md)
- [CGEventField.scrollWheelEventFixedPtDeltaAxis1](coregraphics/cgeventfield/scrollwheeleventfixedptdeltaaxis1.md)