protected void processWindowStateEvent (WindowEvent e)

Processes window state event occuring on this window by dispatching them to any registered WindowStateListener objects. NOTE: this method will not be called unless window state events are enabled for this window. This happens when one of the following occurs:

Note that if the event parameter is null the behavior is unspecified and may result in an exception.

Parameters:
e    the window state event

See also:
java.awt.Component.enableEvents

Since:  1.4