How to read Macro/Structure Append barcode in C#?

            String imageFilePath = "...";
            // scan all QR Code symbols in the image file
            BarcodeDetail[] datas = BarcodeScanner.ScanInDetails(imageFilePath, BarcodeType.QRCode);
            for (int j = 0; j < datas.Length; j++)
            {
                // check if this QR Code symbol is structure append
                if (datas[j].IsStructuredAppend)
                {
                    // total number of qr code symbols from the same message
                    int symbolCount = datas[j].SymbolCountInStructuredAppend;

                    // identify the position of this qr code symbol in the message sequence
                    int symbolPosition = datas[j].SymbolPositionInStructuredAppend;
                }
            }