https://docs.oracle.com/javase/jp/9/docs/api/java/awt/event/ActionEvent.html
ActionEvent (Java SE 9 & JDK 9 )
java sejdk
https://www.openoffice.org/api/docs/common/ref/com/sun/star/awt/ActionEvent-xref.html
Uses of Struct ActionEvent-xref
usesstructxref