Hello dear fellows,

In the application I'm developping (in Java/swing), I have to show a full screen window on the second screen of the user. I did this using a code similar to the one you'll find below... Be, as soon as I click in a window opened by windows explorer, or as soon as I open windows explorer (i'm using windows XP), the full screen window is minimized...

Do you know any way or workaround to fix this problem, or is there something important I did not understand with full screen windows?

Thanks for the help,

import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JWindow;

import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.GraphicsDevice;
import java.awt.GraphicsEnvironment;
import java.awt.Window;

import javax.swing.JButton;
import javax.swing.JToggleButton;
import java.awt.Rectangle;
import java.awt.GridBagLayout;
import javax.swing.JLabel;

public class FullScreenTest {

    private JFrame jFrame = null;  //  @jve:decl-index=0:visual-constraint="94,35"
    private JPanel jContentPane = null;
    private JToggleButton jToggleButton = null;
    private JPanel jFSPanel = null;  //  @jve:decl-index=0:visual-constraint="392,37"
    private JLabel jLabel = null;
    private Window window;
    /**
     * This method initializes jFrame	
     * 	
     * @return javax.swing.JFrame	
     */
    private JFrame getJFrame() {
    	if (jFrame == null) {
    		jFrame = new JFrame();
    		jFrame.setSize(new Dimension(474, 105));
    		jFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    		jFrame.setContentPane(getJContentPane());
    	}
    	return jFrame;
    }

    /**
     * This method initializes jContentPane	
     * 	
     * @return javax.swing.JPanel	
     */
    private JPanel getJContentPane() {
    	if (jContentPane == null) {
    		jContentPane = new JPanel();
    		jContentPane.setLayout(null);
    		jContentPane.add(getJToggleButton(), null);
    	}
    	return jContentPane;
    }

    /**
     * This method initializes jToggleButton	
     * 	
     * @return javax.swing.JToggleButton	
     */
    private JToggleButton getJToggleButton() {
    	if (jToggleButton == null) {
    		jToggleButton = new JToggleButton();
    		jToggleButton.setBounds(new Rectangle(50, 23, 360, 28));
    		jToggleButton.setText("Show Full Screen Window on 2nd screen");
    		jToggleButton.addActionListener(new java.awt.event.ActionListener() {
    			public void actionPerformed(java.awt.event.ActionEvent e) {
    				showFullScreenWindow(jToggleButton.isSelected());
    			}
    		});
    	}
    	return jToggleButton;
    }

    protected void showFullScreenWindow(boolean b) {
    	if(window==null){
    		window = initFullScreenWindow();
    	}
    	window.setVisible(b);

    }

    private Window initFullScreenWindow() {
    	GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
    	GraphicsDevice[] gds = ge.getScreenDevices();
    	GraphicsDevice gd = gds[1];
    	JWindow window = new JWindow(gd.getDefaultConfiguration());
    	window.setContentPane(getJFSPanel());
    	gd.setFullScreenWindow(window);
    	return window;
    }

    /**
     * This method initializes jFSPanel	
     * 	
     * @return javax.swing.JPanel	
     */
    private JPanel getJFSPanel() {
    	if (jFSPanel == null) {
    		jLabel = new JLabel();
    		jLabel.setBounds(new Rectangle(18, 19, 500, 66));
    		jLabel.setText("Hello ! Now, juste open windows explorer and see what happens...");
    		jFSPanel = new JPanel();
    		jFSPanel.setLayout(null);
    		jFSPanel.setSize(new Dimension(500, 107));
    		jFSPanel.add(jLabel, null);
    	}
    	return jFSPanel;
    }

    /**
     * @param args
     */
    public static void main(String[] args) {
    	FullScreenTest me = new FullScreenTest();
    	me.getJFrame().setVisible(true);

    }

}