CaptureScreenSnippet.java

/*
 * MIT License
 *
 * Copyright (c) 2017-2022 Ilkka Seppälä
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

package media;

import java.awt.AWTException;
import java.awt.Rectangle;
import java.awt.Robot;
import java.awt.Toolkit;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;

/**
 * CaptureScreenSnippet.
 */
public class CaptureScreenSnippet {

  /**
   * Capture screenshot and save it to PNG file. Credits: https://viralpatel.net/blogs/how-to-take-screen-shots-in-java-taking-screenshots-java/
   *
   * @param filename the name of the file
   * @throws AWTException if the platform configuration does not allow low-level input control
   * @throws IOException  if an I/O error occurs
   */
  public static void captureScreen(String filename) throws AWTException, IOException {
    var screenSize = Toolkit.getDefaultToolkit().getScreenSize();
    var screenRectangle = new Rectangle(screenSize);
    var robot = new Robot();
    var image = robot.createScreenCapture(screenRectangle);
    ImageIO.write(image, "png", new File(filename));
  }
}