MouseScrollEvent

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

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