optionalActionEventHandlerProperty
fun optionalActionEventHandlerProperty(initialValue: ActionEventHandler?): PropertyDelegate<ActionEventHandler?, OptionalActionEventHandlerProperty>
A Kotlin delegate to create an OptionalActionEventHandlerProperty (the implementation will be a SimpleOptionalActionEventHandlerProperty. Typical usage :
val fooProperty by optionalActionEventHandlerProperty( initialValue )
var foo by fooPropertyContent copied to clipboard