ReadOnlyActionEventPropertyWrapper
class ReadOnlyActionEventPropertyWrapper(wraps: ActionEventProperty) : ReadOnlyPropertyWrapper<ActionEvent, Property<ActionEvent>> , ReadOnlyActionEventProperty
Never use this class directly. Use ActionEventProperty.asReadOnly to obtain a read-only version of a mutable ActionEventProperty.
Boilerplate which avoids having to use generic. Instead of ReadOnlyPropertyWrapper<ActionEvent, Property<ActionEvent>>, use ReadOnlyActionEventPropertyWrapper.