Hi there,
> Stupid question time. :-)
Not so stupid, actually. This is because of our bug, which I happy
to report was fixed in mustang.
To work around it, don't use Canvas, just create the BufferStrategy
off your frame.
Also, you might want to use Frame instead of JFrame - you don't want
to bring Swing in if you don't use it..
Thanks,
Dmitri
Java2D Team
On Tue, Jul 25, 2006 at 02:37:40PM -0700, [EMAIL PROTECTED] wrote:
> Hello,
>
> Stupid question time. :-)
>
> Why does the following code (correctly) display a black screen with white
> numbers under Linux, but just grey under Windows XP? Tested on Java 1.4 and
> 5 under Windows, Java 1.4, 5, and 6 under Linux (it even works in Kaffe!).
>
> I know I'm missing something obvious. :-P
>
> Thanks!
>
> William
>
> [pre]import java.awt.*;
> import java.awt.image.*;
> import javax.swing.*;
>
> public class BufferTest {
> public static void main(String args[]) {
> JFrame frame;
> Canvas canvas;
> GraphicsDevice device;
> BufferStrategy strategy;
> DisplayMode mode;
>
> canvas = new Canvas();
> frame = new JFrame();
> frame.setUndecorated(true);
>
> canvas.setIgnoreRepaint(true);
>
> device =
> GraphicsEnvironment.getLocalGraphicsEnvironment().getDefaultScreenDevice();
> mode = device.getDisplayMode();
>
> frame.setSize(mode.getWidth(), mode.getHeight());
> frame.getContentPane().add(canvas);
> device.setFullScreenWindow(frame);
> frame.show();
>
> try {
> canvas.createBufferStrategy(2);
> strategy = canvas.getBufferStrategy();
>
> for (int counter = 100; counter >= 0; --counter) {
> Graphics g = strategy.getDrawGraphics();
> g.setColor(Color.BLACK);
> g.fillRect(0, 0, mode.getWidth(), mode.getHeight());
> g.setColor(Color.WHITE);
> g.drawString(Integer.toString(counter), mode.getWidth() / 2,
> mode.getHeight() / 2);
> g.dispose();
> strategy.show();
> Toolkit.getDefaultToolkit().beep();
> Thread.sleep(100);
> }
> } catch (Exception e) {
> e.printStackTrace();
> } finally {
> device.setFullScreenWindow(null);
> System.exit(0);
> }
> }
> }
> [/pre]
> [Message sent by forum member 'afishionado' (afishionado)]
>
> http://forums.java.net/jive/thread.jspa?messageID=136491
>
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