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import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
/**
* 修改分辨率
*/
public class TestChangeScreenResolution {
public static void main(String[] args) {
GraphicsDevice dev = GraphicsEnvironment.getLocalGraphicsEnvironment().getDefaultScreenDevice();
JFrame frame = createFullScreenFrame(dev.getDefaultConfiguration());
dev.setFullScreenWindow(frame);
if (dev.isDisplayChangeSupported()) {
DisplayMode mode = new DisplayMode(800, 600, 32, DisplayMode.REFRESH_RATE_UNKNOWN);
dev.setDisplayMode(mode);
} else {
System.out.println("cannot change resolution");
}
}
// 创建一个全屏的 JFrame,上面有一个关闭按钮。
private static JFrame createFullScreenFrame(GraphicsConfiguration gc) {
final JFrame frame = new JFrame(gc);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setUndecorated(true);
frame.setLayout(new FlowLayout());
JButton button = new JButton("close");
button.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
frame.dispose();
}
});
frame.add(button);
frame.setVisible(true);
return frame;
}
}