/**
         * <summary>
         *   Returns the power sent to the motor, as a percentage between -100% and +100%.
         * <para>
         * </para>
         * <para>
         * </para>
         * </summary>
         * <returns>
         *   a floating point number corresponding to the power sent to the motor, as a percentage between -100% and +100%
         * </returns>
         * <para>
         *   On failure, throws an exception or returns <c>YMotor.DRIVINGFORCE_INVALID</c>.
         * </para>
         */
        public double get_drivingForce()
        {
            double res;

            if (_func == null)
            {
                throw new YoctoApiProxyException("No Motor connected");
            }
            res = _func.get_drivingForce();
            if (res == YAPI.INVALID_DOUBLE)
            {
                res = Double.NaN;
            }
            return(res);
        }