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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.

Deprecated
This feature has been removed from the Web standards. Though some browsers may still support it, it is in the process of being dropped. Avoid using it and update existing code if possible; see the compatibility table at the bottom of this page to guide your decision. Be aware that this feature may cease to work at any time.

The MouseScrollEvent interface represents events that occur due to the user moving a mouse wheel or similar input device.

Do not use this interface for wheel events.

Like MouseWheelEvent, this interface is non-standard and deprecated. It was used in Gecko-based browsers only. Instead use the standard WheelEvent.

Method overview

void initMouseScrollEvent(in DOMString typeArg, in boolean canBubbleArg, in boolean cancelableArg, in nsIDOMAbstractView viewArg, in long detailArg, in long screenXArg, in long screenYArg, in long clientXArg, in long clientYArg, in boolean ctrlKeyArg, in boolean altKeyArg, in boolean shiftKeyArg, in boolean metaKeyArg, in unsigned short buttonArg, in nsIDOMEventTarget relatedTargetArg, in long axis);

Attributes

Attribute Type Description
axis Read only long Indicates scroll direction.

Constants

Delta modes

Constant Value Description
HORIZONTAL_AXIS 0x01 The event is caused by horizontal wheel operation.
VERTICAL_AXIS 0x02 The event is caused by vertical wheel operation.

Methods

initMouseScrollEvent()

See nsIDOMMouseScrollEvent::initMouseScrollEvent().

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support No support 3.5 (1.9.1) No support No support No support
Feature Android Firefox Mobile (Gecko) IE Phone Opera Mobile Safari Mobile
Basic support No support 1.0 (1.9.1) No support No support No support

See also

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