}
    bool operator!=(const cursor_loc &rhs) const
    {
        return !(*this == rhs);

    cursor_loc last_loc;

    const unsigned int ticks_per_redraw = 16; // 60 FPS = 16.6 ms/frame

    const unsigned int ticks_per_redraw = 50;

            last_loc = cur_loc;

                m_need_redraw = true;

            if (last_loc != cur_loc)
                m_need_redraw = true;

        if (ticks - last_redraw_tick > ticks_per_redraw)

        if ((ticks - last_redraw_tick > ticks_per_redraw) && need_redraw())