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The WheelEvent
interface represents events that occur due to the user moving a mouse wheel or similar input device.
The
WheelEvent()
constructor returns a newly created
FocusEvent
object.
The WheelEvent.deltaMode
read-only property returns an unsigned long
representing the unit of the delta values scroll amount. Permitted values are:
The
WheelEvent.deltaX
read-only property is a
double
representing the horizontal scroll amount in the
WheelEvent.deltaMode
unit.
The
WheelEvent.deltaY
read-only property is a
double
representing the vertical scroll amount in the
WheelEvent.deltaMode
unit.
The
WheelEvent.deltaZ
read-only property is a
double
representing the scroll amount along the z-axis, in the
WheelEvent.deltaMode
unit.