Wie kann man das konrollieren ? Mit einem WindowsListener oder geht das anders?
dispose
public void dispose()
Releases all of the native screen resources used by this Window, its subcomponents, and all of its owned children. That is, the resources for these Components will be destroyed, any memory they consume will be returned to the OS, and they will be marked as undisplayable.
The Window and its subcomponents can be made displayable again by rebuilding the native resources with a subsequent call to pack or show. The states of the recreated Window and its subcomponents will be identical to the states of these objects at the point where the Window was disposed (not accounting for additional modifications between those actions).
Note: When the last displayable window within the Java virtual machine (VM) is disposed of, the VM may terminate. See AWT Threading Issues for more information.
See Also:Component.isDisplayable(), pack(), show()
@JustNobodyDas entscheidende Event ist das close Event.
addWindowListener ist der richtige Ansatz und da finden sich die Events für:
Closing: das Fenster ist noch auf und soll geschlossen werden.
Closed: Das Fenster wurde geschlossen.
Das ist aber kein disposed - nach einem Disposed wäre auch in der Regel kein Zugriff mehr zulässig...