J2534DotNet.PassThruMsg.SetBytes C# (CSharp) Method

        public void SetBytes(byte[] myByteArray)
        {
            DataSize = (uint)myByteArray.Length;
            fixed (byte* data = Data)
            {
                for (int i = 0; i < myByteArray.Length; i++)
                {
                    *(data + i) = myByteArray[i];
                }
            }
        }

        private bool ReadObdPid(byte mode, byte pid, ProtocolID protocolId, ref List<byte> value)
        {
            PassThruMsg txMsg = new PassThruMsg();
            int timeout;

            txMsg.ProtocolID = protocolId;
            switch (protocolId)
            {
                case ProtocolID.ISO15765:
                    txMsg.TxFlags = TxFlag.ISO15765_FRAME_PAD;
                    if (mode == 0x03 || mode == 0x04)
                    {
                        txMsg.SetBytes(new byte[] { 0x00, 0x00, 0x07, 0xdf, mode});
                    }
                    else
                    {
                        txMsg.SetBytes(new byte[] { 0x00, 0x00, 0x07, 0xdf, mode, pid });
                    }
                    timeout = 50;
                    break;
                case ProtocolID.J1850PWM:
                case ProtocolID.J1850VPW:
                case ProtocolID.ISO9141:
                case ProtocolID.ISO14230:
                    byte protocolByte = (byte)((protocolId == ProtocolID.J1850PWM) ? 0x61 : 0x68);
                    txMsg.TxFlags = TxFlag.NONE;
                    txMsg.SetBytes(new byte[]{protocolByte, 0x6A, 0xF1, mode, pid});
                    timeout = 100;
                    break;
                default:
                    return false;
            }

            m_j2534Interface.ClearRxBuffer(m_channelId);

            int numMsgs = 1;
            m_status = m_j2534Interface.PassThruWriteMsgs(m_channelId, txMsg.ToIntPtr(), ref numMsgs, timeout);
            if (J2534Err.STATUS_NOERROR != m_status)
            {
                return false;
            }

            IntPtr rxMsgs = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(PassThruMsg)) * numMsgs);
            numMsgs = 1;
            while (J2534Err.STATUS_NOERROR == m_status)
            {
                m_status = m_j2534Interface.PassThruReadMsgs(m_channelId, rxMsgs, ref numMsgs, timeout * 4);
            }

            if (J2534Err.ERR_BUFFER_EMPTY == m_status || J2534Err.ERR_TIMEOUT == m_status)
            {
                if (numMsgs > 0)
                {
                    // Select the last value
                    PassThruMsg msg = rxMsgs.AsMsgList(numMsgs).Last();
                    value = msg.GetBytes().ToList();
                    value.RemoveRange(0, txMsg.GetBytes().Length);
                    return true;
                }
                return false;
            }
            return false;
        }