01.import java.awt.*;
02.import javax.swing.*;
03.import static java.awt.GraphicsDevice.WindowTranslucency.*;
04.
05.public class TranslucentWindowDemo extends JFrame {
06. public TranslucentWindowDemo() {
07. super("TranslucentWindow");
08. setLayout(new GridBagLayout());
09.
10. setSize(300,200);
11. setLocationRelativeTo(null);
12. setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
13.
14.
15. add(new JButton("I am a Button"));
16. }
17.
18. public static void main(String[] args) {
19.
20. GraphicsEnvironment ge =
21. GraphicsEnvironment.getLocalGraphicsEnvironment();
22. GraphicsDevice gd = ge.getDefaultScreenDevice();
23.
24.
25. if (!gd.isWindowTranslucencySupported(TRANSLUCENT)) {
26. System.err.println(
27. "Translucency is not supported");
28. System.exit(0);
29. }
30.
31. JFrame.setDefaultLookAndFeelDecorated(true);
32.
33.
34. SwingUtilities.invokeLater(new Runnable() {
35. @Override
36. public void run() {
37. TranslucentWindowDemo tw = new TranslucentWindowDemo();
38.
39.
40. tw.setOpacity(0.55f);
41.
42.
43. tw.setVisible(true);
44. }
45. });
46. }
47.}
