Details of a scroll event.
The amount the scrollable content was moved this frame in Receiver local space.
The mechanism responsible for scrolling the content, Manual or Inertial.
A unique identifier associated with the event.
The interaction update responsible for triggering the event. Either passed into or created by an Interaction method.
The UIBlock from which the event was invoked.
An ancestor of the Receiver (or the Receiver itself) holding information pertinent to the event handler.