---
title: DOMWheelEvent
framework: webkit
role: symbol
role_heading: Class
path: webkit/domwheelevent
---

# DOMWheelEvent

## Declaration

```swift
class DOMWheelEvent
```

## Topics

### Instance Properties

- [isHorizontal](webkit/domwheelevent/ishorizontal.md)
- [wheelDelta](webkit/domwheelevent/wheeldelta.md)
- [wheelDeltaX](webkit/domwheelevent/wheeldeltax.md)
- [wheelDeltaY](webkit/domwheelevent/wheeldeltay.md)

### Instance Methods

- [initWheelEvent(_:wheelDeltaY:view:screenX:screenY:clientX:clientY:ctrlKey:altKey:shiftKey:metaKey:)](webkit/domwheelevent/initwheelevent(_:wheeldeltay:view:screenx:screeny:clientx:clienty:ctrlkey:altkey:shiftkey:metakey:).md)

## Relationships

### Inherits From

- [DOMMouseEvent](webkit/dommouseevent.md)

### Conforms To

- [CVarArg](swift/cvararg.md)
- [CustomDebugStringConvertible](swift/customdebugstringconvertible.md)
- [CustomStringConvertible](swift/customstringconvertible.md)
- [Equatable](swift/equatable.md)
- [Hashable](swift/hashable.md)
- [NSCopying](foundation/nscopying.md)
- [NSObjectProtocol](objectivec/nsobjectprotocol.md)

## See Also

### Document Object Model (DOM) APIs

- [DOMAbstractView](webkit/domabstractview.md)
- [DOMAttr](webkit/domattr.md)
- [DOMBlob](webkit/domblob.md)
- [DOMCDATASection](webkit/domcdatasection.md)
- [DOMCharacterData](webkit/domcharacterdata.md)
- [DOMComment](webkit/domcomment.md)
- [DOMCounter](webkit/domcounter.md)
- [DOMCSSCharsetRule](webkit/domcsscharsetrule.md)
- [DOMCSSFontFaceRule](webkit/domcssfontfacerule.md)
- [DOMCSSImportRule](webkit/domcssimportrule.md)
- [DOMCSSMediaRule](webkit/domcssmediarule.md)
- [DOMCSSPageRule](webkit/domcsspagerule.md)
- [DOMCSSPrimitiveValue](webkit/domcssprimitivevalue.md)
- [DOMCSSRule](webkit/domcssrule.md)
- [DOMCSSRuleList](webkit/domcssrulelist.md)