Point parentLocation = comp.getParent().getLocationOnScreen(); return new Point (parentLocation.x + comp.getX(), parentLocation.y + comp.getY());
return null;
  public Point getLocationOnScreen()  {    Point parentLocation = comp.getParent().getLocationOnScreen();    return new Point (parentLocation.x + comp.getX(),                      parentLocation.y + comp.getY());  }