Capture Screen : Screen Capture « 2D Graphics « Java Tutorial

1. Java Tutorial
2. 2D Graphics
3. Screen Capture

import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Rectangle;
import java.awt.Robot;
import java.awt.Toolkit;
import java.awt.image.BufferedImage;

import javax.swing.JFrame;
import javax.swing.JPanel;

public class Capture {
  public static void main(String[] args) {
    JFrame capture = new JFrame();
    capture.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    Toolkit kit = Toolkit.getDefaultToolkit();
    final Dimension d = kit.getScreenSize();
    capture.setSize(d);

    
    Rectangle rect = new Rectangle(d);
    try {
      Robot robot = new Robot();
      final BufferedImage image = robot.createScreenCapture(rect);
      image.flush();
      JPanel panel = new JPanel() {
        public void paintComponent(Graphics g) {
          g.drawImage(image, 0, 0, d.width, d.height, this);
        }
      };
      panel.setOpaque(false);
      panel.prepareImage(image, panel);
      panel.repaint();
      capture.getContentPane().add(panel);
    } catch (Exception e) {
      e.printStackTrace();
    }

    capture.setVisible(true);
  }
}

16.44.Screen Capture
	16.44.1.	Capture Screen
	16.44.2.	Screen capture with crop operation