/**
* Capture a part of the desktop screen using <tt>java.awt.Robot</tt>.
*
* @param x x position to start capture
* @param y y position to start capture
* @param width capture width
* @param height capture height
* @return <tt>BufferedImage</tt> of a part of the desktop screen or null if Robot problem
*/
public BufferedImage captureScreen(int x, int y, int width, int height) {
BufferedImage img = null;
Rectangle rect = null;
if (robot == null) {
/* Robot has not been created so abort */
return null;
}
if (logger.isInfoEnabled()) logger.info("Begin capture: " + System.nanoTime());
rect = new Rectangle(x, y, width, height);
img = robot.createScreenCapture(rect);
if (logger.isInfoEnabled()) logger.info("End capture: " + System.nanoTime());
return img;
}
