gistfile1

import java.awt.image.BufferedImage;
import java.awt.*;

PImage screenShot;



void setup() {
  size(800, 600);
 screenShot = getScreen();
}

void draw () {
  pushMatrix();
  translate(mouseX,mouseY);
  rotate(radians(270));
  image(screenShot,0,0, 300,300);
  popMatrix();
  delay(1000);
  screenShot = getScreen();
  
}

PImage getScreen() {
  GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
  GraphicsDevice[] gs = ge.getScreenDevices();
  DisplayMode mode = gs[0].getDisplayMode();
  Rectangle bounds = new Rectangle(0, 0, mode.getWidth(), mode.getHeight());
  BufferedImage desktop = new BufferedImage(mode.getWidth(), mode.getHeight(), BufferedImage.TYPE_INT_RGB);

  try {
    desktop = new Robot(gs[0]).createScreenCapture(bounds);
  }
  catch(AWTException e) {
    System.err.println("Screen capture failed.");
  }

  return (new PImage(desktop));
}