RFID.RFIDInterface.Source_GPIO.load C# (CSharp) Method

        public rfid.Constants.Result load(
            rfid.Linkage transport,
            UInt32       readerHandle
        )
        {
            // TODO : validate that when doin store the given pin has
            //        access flag in GET mode (?)

            // Configure pin to set mode

            rfid.Constants.Result result    = rfid.Constants.Result.OK;
            rfid.Constants.Result resultErr = rfid.Constants.Result.OK;
            uint uiCurError  = 0;
            uint uiLastError = 0;
            byte getValue    = 0;

            //Set access to "Get"
            result = transport.API_GpioSetPinsConfiguration( (byte)this.nativePin,
                                                          0                     );
            if (rfid.Constants.Result.OK != result)
            {

                //Get error
                resultErr = transport.API_MacGetError(ref uiCurError, ref uiLastError);

                //Can't get error
                if (resultErr != rfid.Constants.Result.OK)
                {
                    this.status = OpResult.FAILURE;
                    return resultErr;
                }

                //If error = 0x2B, it means doesn't support this pin
                if (uiCurError == 0x2B)
                {
                    this.status = OpResult.UNSUPPORTED;
                    return result;
                }
                else
                {
                    this.status = OpResult.FAILURE;
                    return result;
                }

            }

            //Get GPIO Status
            result = transport.API_GpioReadPins( (byte)this.nativePin,
                                                  ref  getValue        );

            if ( rfid.Constants.Result.OK == result )
            {
                this.state  = ( ( UInt32 ) this.nativePin & getValue ) == 0 ? OpState.LO : OpState.HI;
                this.status = OpResult.SUCCESS;
            }
            else
            {
                this.state  = OpState.FAILURE;
                this.status = OpResult.FAILURE;
            }

            return result;
        }