Robot : java.awt.Robot
is used to take control of the mouse and keyboard. It is used for test automation, self-running demos and screen capture at various state of execution of the program.Java Code for detecting screen size and capturing whole screen using Robot and saving :
import java.awt.Dimension;
import java.awt.Rectangle;
import java.awt.Robot;
import java.awt.Toolkit;
import java.awt.image.BufferedImage;
import java.io.File;
import javax.imageio.ImageIO;
public class ScreenCapture {
public static void main(String[] args) {
saveScreen("capturedImage");
}
public static boolean saveScreen(String fileNameJpeg) {
try {
// Get the "actual" screen size
Dimension scr = Toolkit.getDefaultToolkit().getScreenSize();
System.out.println("(" + scr.width + "," + scr.height + ")");
// Allocate a Robot instance
Robot robot = new Robot();
Rectangle rect = new Rectangle(0, 0, scr.width, scr.height);
//screen capture
BufferedImage image = robot.createScreenCapture(rect);
// Save the captured image to file with ImageIO
ImageIO.write(image, "jpeg", new File(fileNameJpeg + ".jpg"));
return true;
} catch (Exception ex) {
System.out.println(ex.toString());
return false;
}
}
}
Screen Capture/logger is also available : Periodic screen capture- screen logger
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