fun HierarchyEvent( source: Component?, id: Int, changed: Component, changedParent: Container, changeFlags: Long ) { super(source, id) changed = changed changedParent = changedParent changeFlags = changeFlags }
Constructs an < code > HierarchyEvent < /code > object to identify a change in the < code > Component < /code > hierarchy . < p > This method throws an < code > IllegalArgumentException < /code > if < code > source < /code > is < code > null < /code > .