In this example we are going to see how to take screen captures in a Java Desktop Application.
Basically, all you have to do to take screen captures is:
- Create a new
Robotinstance. - Create a new
Rectangleshape. - Use
robot.createScreenCaptureto get a rectangle screen capture. - Use
ImageIOto save the image in a file.
Let’s see the code:
package com.javacodegeeks.snippets.desktop;
import java.awt.AWTException;
import java.awt.Rectangle;
import java.awt.Robot;
import java.awt.Toolkit;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
public class CaptureScreen {
public static void main(String[] args) {
try {
Robot robot = new Robot();
// Capture a particular area on the screen
int x = 50;
int y = 50;
int width = 250;
int height = 250;
Rectangle area = new Rectangle(x, y, width, height);
BufferedImage bufferedImage = robot.createScreenCapture(area);
// Write generated image to a file
try {
// Save as PNG
File file = new File("screenshot_small.png");
ImageIO.write(bufferedImage, "png", file);
} catch (IOException e) {
System.out.println("Could not save small screenshot " + e.getMessage());
}
// Capture the whole screen
area = new Rectangle(Toolkit.getDefaultToolkit().getScreenSize());
bufferedImage = robot.createScreenCapture(area);
// Write generated image to a file
try {
// Save as PNG
File file = new File("screenshot_full.png");
ImageIO.write(bufferedImage, "png", file);
} catch (IOException e) {
System.out.println("Could not save full screenshot " + e.getMessage());
}
} catch (AWTException e) {
System.out.println("Could not capture screen " + e.getMessage());
}
}
}
This was an example on how to take screen captures in Java.
iam getting black screen