Canvas in fullscreen mode

Java 2D
#1

The question has probably already been answered :
I’ve got a JFrame containing a Canvas, everything works fine in windowed mode but when i try to switch to fullscreen mode, my canvas doesn’t display anything anymore.
Is there anything more to add than the :

GraphicsEnvironment.getLocalGraphicsEnvironment().getDefaultScreenDevice().setFullScreenWindow(this(=myJFrame));

is there any option i may have missed ?
If anyone can help me ;_;

#2

On the newest developer update of Java on OS X. You get a gray screen when using a canvas inside a JFrame in fullscreen.

Lot’s of fiddling needed to get around it.

If you are on OS X, you can page me and I’ll try to make a working sample of how to get the fullscreen working in all cases.

#3

try this:

public class FullCanvas extends Canvas {
int WIDTH=1024;
int HEIGHT=768;
int BUFFERS =2;
BufferStrategy mystrategy;
…
public FullCanvas() {
JFrame f = new JFrame(“Test”);
JPanel backPanel = (JPanel) f.getContentPane();
setBounds(0, 0, WIDTH, HEIGHT);
backPanel.setPreferredSize(new Dimension(WIDTH, HEIGHT));
backPanel.setLayout(null);
// add components
backPanel.add(this);
f.setBounds(0, 0, WIDTH, HEIGHT);

GraphicsEnvironment gren = GraphicsEnvironment.getLocalGraphicsEnvironment();
GraphicsDevice grd = gren.getDefaultScreenDevice();

f.setUndecorated(true); 
f.setIgnoreRepaint(true); 
f.setResizable(false);

grd.setFullScreenWindow(f); 

DisplayMode dm = new DisplayMode(WIDTH, HEIGHT, 32, DisplayMode.REFRESH_RATE_UNKNOWN);
try {
  grd.setDisplayMode(dm);
}
catch (IllegalArgumentException e) {
  System.out.println("Error");
}

f.createBufferStrategy(BUFFERS);

try { // 
  Thread.sleep(1000); 
}
catch (InterruptedException ex) {}

mystrategy= getBufferStrategy(); 

this.createBufferStrategy(BUFFERS);
mystrategy= getBufferStrategy();
this.requestFocus();
this.setIgnoreRepaint(true);
f.setVisible(true);

}
…
loop …
rendering all compontents
…
}

it should works!

#4

Yeah. Actually it worked all a long. It was a bug in the previous java runtime on OS X.

#5

I’ve found that it’s simply easier to cut the Canvas use the Frame’s double buffering capabilities instead when going fullscreen. In one game, I use a Canvas for debugging/windowed mode and just the frame itself for fullscreen.