MouseScrollEvent

Deprecated

Avoid using this feature in new projects. This feature may be a candidate for removal from web standards or browsers.

Non-standard: This feature is not standardized. We do not recommend using non-standard features in production, as they have limited browser support, and may change or be removed. However, they can be a suitable alternative in specific cases where no standard option exists.

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

Warning: 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

webidl
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.

Instance methods

initMouseScrollEvent()

See nsIDOMMouseScrollEvent::initMouseScrollEvent().

Browser compatibility

See also

  • DOMMouseScroll
  • MozMousePixelScroll
  • Standardized mouse wheel event object: WheelEvent