16. 47. 1. 全屏操作 Full screen mode

import java.awt.Frame;
import java.awt.Graphics;
import java.awt.GraphicsDevice;
import java.awt.GraphicsEnvironment;
import java.awt.Window;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.image.BufferedImage;
import java.io.File;

import javax.imageio.ImageIO;

//Window 对象是一个没有边界和菜单栏的顶层窗口。窗口的默认布局是 BorderLayout。
public class FullScreenTest extends Window{
private BufferedImage pic;//具有可访问图像数据缓冲区的 Image。

public static void main(String[] args) {
//GraphicsEnvironment在特定平台上可用的 GraphicsDevice 对象和 Font 对象的集合。
GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
//GraphicsDevice可以在特定图形环境中使用的图形设备。这些设备包括屏幕和打印机设备。
GraphicsDevice screen = ge.getDefaultScreenDevice();
screen.setFullScreenWindow(null);

if(!screen.isFullScreenSupported()){//本机是否支持全屏
System.out.println("不支持全屏");
System.exit(1);
}

try{
BufferedImage loadepic = ImageIO.read(new File("D:\\mm\\mm.jpg"));
screen.setFullScreenWindow(new FullScreenTest(loadepic));
}catch(Exception e){
e.printStackTrace();
}
}

public FullScreenTest(BufferedImage pic){
super(new Frame());
this.pic = pic;
addMouseListener(new MouseAdapter() {//鼠标点后退出
public void mouseClicked(MouseEvent e) {
System.exit(0);
}
});
}
public void paint(Graphics g){
g.drawImage(pic, 0, 0, getWidth(), getHeight(), this);
}
}