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package java.awt.event;

import java.util.EventListener;

The listener interface for receiving window state events.
 The class that is interested in processing a window state event either implements this interface (and all the methods it contains) or extends the abstract WindowAdapter class (overriding only the methods of interest). 
 The listener object created from that class is then registered with a window using the Window's addWindowStateListener method. When the window's state changes by virtue of being iconified, maximized etc., the windowStateChanged method in the listener object is invoked, and the WindowEvent is passed to it. 
See Also:
WindowAdapter
WindowEvent
Since:
1.4/**
 * The listener interface for receiving window state events.
 * <p>
 * The class that is interested in processing a window state event
 * either implements this interface (and all the methods it contains)
 * or extends the abstract {@code WindowAdapter} class
 * (overriding only the methods of interest).
 * <p>
 * The listener object created from that class is then registered with
 * a window using the {@code Window}'s
 * {@code addWindowStateListener} method.  When the window's
 * state changes by virtue of being iconified, maximized etc., the
 * {@code windowStateChanged} method in the listener object is
 * invoked, and the {@code WindowEvent} is passed to it.
 *
 * @see java.awt.event.WindowAdapter
 * @see java.awt.event.WindowEvent
 *
 * @since 1.4
 */
public interface WindowStateListener extends EventListener {
    
Invoked when window state is changed.
Params:
e – the event to be processed/**
     * Invoked when window state is changed.
     * @param e the event to be processed
     */
    public void windowStateChanged(WindowEvent e);
}