static bool robotDragMouse(final Point a, int delay, final Point b) ctex {
  mouseMover().enable();
  if (mouseMover().blocked()) false;
  mouseMover().moveMouse(Pt(a.x, a.y));
  final int button = InputEvent.BUTTON1_DOWN_MASK;
  final new Robot robot;
  mouseMover().pressButton();
  swingLater(delay, r {
    mouseMover().moveMouse(Pt(b.x, b.y));
    mouseMover().releaseButton();
  });
  true;
}