Java by API/java.awt/Robot

Robot: createScreenCapture(Rectangle screenRect)

 
import java.awt.Rectangle;
import java.awt.Robot;
import java.awt.Toolkit;
import java.awt.image.BufferedImage;
public class Main {
  public static void main(String[] argv) throws Exception {
    Robot robot = new Robot();
    int x = 100;
    int y = 100;
    int width = 200;
    int height = 200;
    Rectangle area = new Rectangle(x, y, width, height);
    BufferedImage bufferedImage = robot.createScreenCapture(area);
    // Capture the whole screen
    area = new Rectangle(Toolkit.getDefaultToolkit().getScreenSize());
    bufferedImage = robot.createScreenCapture(area);
  }
}

Robot: getPixelColor(int x, int y)

 
import java.awt.Color;
import java.awt.Robot;
public class Main {
  public static void main(String[] args) throws Exception{
    Robot robot = new Robot();
    Color color = robot.getPixelColor(20, 20);
    System.out.println("Red   = " + color.getRed());
    System.out.println("Green = " + color.getGreen());
    System.out.println("Blue  = " + color.getBlue());
  }
}

Robot: keyPress(int keycode)

 
import java.awt.Robot;
import java.awt.event.KeyEvent;
public class Main {
  public static void main(String[] argv) throws Exception {
    Robot robot = new Robot();
    robot.keyPress(KeyEvent.VK_A);
    robot.keyRelease(KeyEvent.VK_A);
  }
}

Robot: keyRelease(int keycode)

 
import java.awt.Robot;
import java.awt.event.KeyEvent;
public class Main {
  public static void main(String[] argv) throws Exception {
    Robot robot = new Robot();
    robot.keyPress(KeyEvent.VK_A);
    robot.keyRelease(KeyEvent.VK_A);
  }
}

Robot: mouseMove(int x, int y)

 
import java.awt.Robot;
import java.awt.event.InputEvent;
public class MainClass {
  public static void main(String[] args) throws Exception{
    Robot r = new Robot();
    r.mouseMove(35,35);
    r.mousePress( InputEvent.BUTTON1_MASK );
    r.mouseRelease( InputEvent.BUTTON1_MASK );
    Thread.sleep(50);
    r.mousePress( InputEvent.BUTTON1_MASK );
    r.mouseRelease( InputEvent.BUTTON1_MASK );
  }
}

Robot: mousePress(int buttons)

 
import java.awt.Robot;
import java.awt.event.InputEvent;
public class MainClass {
  public static void main(String[] args) throws Exception{
    Robot r = new Robot();
    r.mouseMove(35,35);
    r.mousePress( InputEvent.BUTTON1_MASK );
    r.mouseRelease( InputEvent.BUTTON1_MASK );
    Thread.sleep(50);
    r.mousePress( InputEvent.BUTTON1_MASK );
    r.mouseRelease( InputEvent.BUTTON1_MASK );
  }
}

Robot: mouseRelease(int buttons)

 
import java.awt.Robot;
import java.awt.event.InputEvent;
public class MainClass {
  public static void main(String[] args) throws Exception{
    Robot r = new Robot();
    r.mouseMove(35,35);
    r.mousePress( InputEvent.BUTTON1_MASK );
    r.mouseRelease( InputEvent.BUTTON1_MASK );
    Thread.sleep(50);
    r.mousePress( InputEvent.BUTTON1_MASK );
    r.mouseRelease( InputEvent.BUTTON1_MASK );
  }
}

Robot: mouseWheel(int wheelAmt)

 
import java.awt.Robot;
import java.awt.event.InputEvent;
public class Main {
  public static void main(String[] args) throws Exception {
    Robot robot = new Robot();
    robot.mouseMove(200, 200);
    robot.mousePress(InputEvent.BUTTON1_MASK);
    robot.mouseRelease(InputEvent.BUTTON1_MASK);
    robot.mouseWheel(-100);
  }
}