How can I create a Java Swing app that covers the Windows Title bar?

Question

I'm working on a java swing application that will be used in a psychology experiment and the researchers have requested that I make the program "black out the screen" in order that there should be no outside stimuli for the user. They want the swing app to be truly full-screen and without any type of title bar or minimize/maximize/close buttons on the top.

The software will be running in a Windows XP environment using JavaSE 6.

How can I do this and please provide a code snippet if applicable.

Thanks!

Answer 1

Use the setUndecorated(true) property. Note that this has to be done before making the frame visible.

JFrame frame = new JFrame();
Toolkit tk = Toolkit.getDefaultToolkit();
frame.setBounds(new Rectangle(new Point(0, 0), tk.getScreenSize()));
frame.setUndecorated(true);
frame.setVisible(true);

Answer 2

Use the Full Screen Java APIs?

http://java.sun.com/docs/books/tutorial/extra/fullscreen/exclusivemode.html

http://www.artificis.hu/2006/03/16/java-awtswing-fullscreen

JFrame fr = new JFrame();
fr.setResizable(false);
if (!fr.isDisplayable()) {
    // Can only do this when the frame is not visible
    fr.setUndecorated(true);
}
GraphicsDevice gd = GraphicsEnvironment.getLocalGraphicsEnvironment().getDefaultScreenDevice();
try {
  if (gd.isFullScreenSupported()) {
    gd.setFullScreenWindow(fr);
  } else {
    // Can't run fullscreen, need to bodge around it (setSize to screen size, etc)
  }
  fr.setVisible(true);
  // Your business logic here
} finally {
  gd.setFullScreenWindow(null);
}