|
java实现透明窗体
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.Point;
import java.awt.Rectangle;
import java.awt.Robot;
import java.awt.Toolkit;
import javax.swing.JFrame;
import javax.swing.JPanel;
/**
* 实现透明窗体
* @author Administrator
*
*/
public final class Test extends JFrame {
JPanel jp;
Image Background;
Point p0;
Point p1;
public Test() {
jp = new JPanel();
this.getContentPane().add(jp);
// 获取整个屏幕图像
try {
Robot r = new Robot();
Toolkit tk = Toolkit.getDefaultToolkit();
Dimension dm = tk.getScreenSize();
Background = r.createScreenCapture(new Rectangle(0, 0, (int) dm
.getWidth(), (int) dm.getHeight()));
System.out.println(Background);
} catch (Exception e) {
e.printStackTrace();
}
this.setSize(600, 600);
// this.setUndecorated(true); //这句要不注释掉，就啥都看不到了
this.setVisible(true);
}
public void paint(Graphics g) {
p0 = this.getLocationOnScreen();
System.out.println(p0);
p1 = new Point(-p0.x, -p0.y);
g.drawImage(Background, p1.x, p1.y, null);
repaint();
}
public static void main(String[] args) {
new Test();
}
}
posted on
2011-04-04 21:29
台哥编程课堂
阅读(5640)
评论(4)
编辑
收藏
举报
|