/**
   * Stop desktop capture stream.
   *
   * @see AbstractPullBufferStream#stop()
   */
  @Override
  public void stop() throws IOException {
    try {
      if (logger.isInfoEnabled()) logger.info("Stop stream");
    } finally {
      super.stop();

      byteBufferPool.drain();
    }
  }
  /**
   * Start desktop capture stream.
   *
   * @see AbstractPullBufferStream#start()
   */
  @Override
  public void start() throws IOException {
    super.start();

    if (desktopInteract == null) {
      try {
        desktopInteract = new DesktopInteractImpl();
      } catch (Exception e) {
        logger.warn("Cannot create DesktopInteract object!");
      }
    }
  }