FTD2XX_NET.FTDI.EEReadUserArea C# (CSharp) Method

        public FT_STATUS EEReadUserArea(byte[] UserAreaDataBuffer, ref UInt32 numBytesRead)
        {
            // Initialise ftStatus to something other than FT_OK
            FT_STATUS ftStatus = FT_STATUS.FT_OTHER_ERROR;

            // If the DLL hasn't been loaded, just return here
            if (hFTD2XXDLL == IntPtr.Zero)
                return ftStatus;

            // Check for our required function pointers being set up
            if ((pFT_EE_UASize != IntPtr.Zero) & (pFT_EE_UARead != IntPtr.Zero))
            {
                tFT_EE_UASize FT_EE_UASize = (tFT_EE_UASize)Marshal.GetDelegateForFunctionPointer(pFT_EE_UASize, typeof(tFT_EE_UASize));
                tFT_EE_UARead FT_EE_UARead = (tFT_EE_UARead)Marshal.GetDelegateForFunctionPointer(pFT_EE_UARead, typeof(tFT_EE_UARead));

                if (ftHandle != IntPtr.Zero)
                {
                    UInt32 UASize = 0;
                    // Get size of user area to allocate an array of the correct size.
                    // The application must also get the UA size for its copy
                    ftStatus = FT_EE_UASize(ftHandle, ref UASize);

                    // Make sure we have enough storage for the whole user area
                    if (UserAreaDataBuffer.Length >= UASize)
                    {
                        // Call FT_EE_UARead
                        ftStatus = FT_EE_UARead(ftHandle, UserAreaDataBuffer, UserAreaDataBuffer.Length, ref numBytesRead);
                    }
                }
            }
            else
            {
                if (pFT_EE_UASize == IntPtr.Zero)
                {
                    LogB.Debug("FTD2XX: Failed to load function FT_EE_UASize.");
                }
                if (pFT_EE_UARead == IntPtr.Zero)
                {
                    LogB.Debug("FTD2XX: Failed to load function FT_EE_UARead.");
                }
            }
            return ftStatus;
        }