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Why setResizable(boolean ) method supress Full Screen Exclusive Mode?

HopeSpartan
Member Posts: 2 Green Ribbon
in Generics
I wrote a code :
public class GameWindow extends JFrame implements WindowListener { public GameWindow( ) { super("Window"); DisplayMode origDisplayMode = null; GraphicsDevice graphicsDevice= null ; GraphicsEnvironment graphicsEnvironment = GraphicsEnvironment.getLocalGraphicsEnvironment(); GraphicsDevice[] devices = graphicsEnvironment.getScreenDevices(); // put graphical devices into array for(int cnt = 0;cnt < 1;cnt++){ System.out.println(devices[cnt]); } //Construct a full-screen object using the first/ active graphicsDevice which has 0 index graphicsDevice= devices[0]; if (graphicsDevice.isFullScreenSupported()){ // Enter full-screen mode witn an undecorated,non-resizable JFrame object setExtendedState(JFrame.MAXIMIZED_BOTH); setTitle("FRAME MAX"); setUndecorated(true); setResizable(false); graphicsDevice.setFullScreenWindow(this); revalidate(); repaint(); Toolkit.getDefaultToolkit().sync(); // to make graphics sync for Linux System.out.println("OK Full-screen mode is supported"); } else { System.out.println("XX Full-screen mode is not supported"); } origDisplayMode = graphicsDevice.getDisplayMode(); // get dimensions from display mode Dimension dim=new Dimension(origDisplayMode.getWidth(),origDisplayMode.getHeight()); setSize(dim); setPreferredSize(dim); setMinimumSize(dim); setLocationRelativeTo(null); } public static void main(String[] args) { AppStarter starter = new AppStarter( args ); SwingUtilities.invokeLater( starter ); } } class AppStarter extends Thread { private String[] args; public AppStarter( String[] args ) { this.args = args; } public void run() { //start program here GameWindow gw=new GameWindow(); gw.setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE); gw.setVisible(true); } }
However, title bar remains there! I just delete "setResizable(false) line and FSEM works like a charm ! Why?