*/
  public void copy_pixels (int x, int y, int width, int height, int type) {

    RequestOutputStream o = display.out;
    synchronized (o) {
      begin_render_request (o, 172, 24);
      o.write_int32 (x);
      o.write_int32 (y);
      o.write_int32 (width);
      o.write_int32 (height);
      o.write_int32 (type);
    }
  }