This article is in need of a technical review.
Non-standard
This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.
Note: Gecko doesn't have a plan to implement this feature due to legacy event and non-standard.
The DOM MouseWheelEvent represents events that occur due to the user turning a mouse wheel.
Use standardardized WheelEvent instead of this legacy event object if available.
Attributes
| Attribute | Type | Description |
wheelDelta |
long |
The distance in pixels (defined as so by MSDN, but the actual usage is different, see mousewheel). Read only. |
wheelDeltaX |
long? |
The value along horizontal axis of wheelDelta. Read only. |
wheelDeltaY |
long? |
The value along vertical axis of wheelDelta. Read only. |
Browser compatibility
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
|---|---|---|---|---|---|
| Basic support | (Yes) | Not supported | 6.0 | (Yes) | (Yes) |
window.MouseWheelEvent |
Not supported | Not supported | 9.0 | Not supported | Not supported |
wheelDeltaX |
(Yes) | Not supported | Not supported | Not supported | (Yes) |
wheelDeltaY |
(Yes) | Not supported | Not supported | Not supported | (Yes) |
| Feature | Android | Firefox Mobile (Gecko) | IE Phone | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|
| Basic support | ? | Not supported | ? | ? | ? |
window.MouseWheelEvent |
? | Not supported | ? | ? | ? |
wheelDeltaX |
? | Not supported | ? | ? | ? |
wheelDeltaY |
? | Not supported | ? | ? | ? |
See also
- An event type which is used by this event object:
mousewheel - A standardized mouse wheel event object:
WheelEvent - Gecko's legacy mouse wheel event object:
MouseScrollEvent - The document in MSDN: MouseWheelEvent object