import java.awt.EventQueue;
import java.awt.Frame;
import java.awt.Toolkit;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

/*
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 * and open the template in the editor.
 */

/**
 *
 * @author andrei-eremeev
 */
public class IconifyDeiconify {
    
    private static void waitForIdle() {
        ((sun.awt.SunToolkit)Toolkit.getDefaultToolkit()).realSync();
    }
    
    private static boolean iconified;
    private static boolean deiconified;
    
    public static void main(String[] args) throws Exception {
        final Frame frame = new Frame("Main Frame");
        
        frame.addWindowListener(new WindowAdapter() {
            @Override
            public void windowIconified(WindowEvent we) {
                iconified = true;
            }

            @Override
            public void windowDeiconified(WindowEvent we) {
                deiconified = true;
            }
        });
        frame.setLocation(100, 100);
        frame.setSize(400, 400);
        frame.setVisible(true);
        waitForIdle();
        EventQueue.invokeAndWait(new Runnable() {
            @Override
            public void run() {
                frame.setExtendedState(Frame.ICONIFIED);
            }
        });
        waitForIdle();
        if (frame.getExtendedState() == Frame.ICONIFIED && iconified) {
            System.out.println("Frame got iconified");
        } else {
            System.out.println("Frame did not get iconified");
        }
        EventQueue.invokeAndWait(new Runnable() {
            @Override
            public void run() {
                frame.setExtendedState(Frame.NORMAL);
            }
        });
        waitForIdle();
        if (frame.getExtendedState() == Frame.NORMAL && deiconified) {
            System.out.println("Frame got deiconified");
        } else {
            System.out.println("Frame did not get deiconified");
        }
        Thread.sleep(5000);
        frame.dispose();
    }
}