Data type EventData
access this type via: lang.EventData (uses)
Instances of this data type are delivered to event sinks. Each event sink must declare a single parameter of this type.
Object source The object from which this event was emitted.
TypeField type The event type, represented as a type field of the interface from the object which emitted the event.
Data details A data instance delivered by the object which emitted the event (optional, check the eventsource definition on the interface).