public static extern int rs_set_relative_offset_on_user(UInt16 rshd, ref MoveRelative relative, ref CoordCalibrate user_coord);
public static extern int rs_set_relative_offset_on_base(UInt16 rshd, ref MoveRelative relative);
public static extern int rs_set_relative_offset_on_user(UInt16 rshd, ref MoveRelative relative, ref CoordCalibrate user_coord);
public static extern int rs_set_relative_offset_on_base(UInt16 rshd, ref MoveRelative relative);