''' <summary>
''' Recognizes GS1-128 barcodes in specified image.
''' </summary>
''' <param name="filename">The filename of image file with barcodes.</param>
Public Shared Sub Recognize(filename As String)   
    ' create the barcode reader
    Using reader As New BarcodeReader()   
        ' specify that reader must search for GS1-128 barcodes only
   
        reader.Settings.ScanBarcodeTypes = BarcodeType.None   
        reader.Settings.ScanBarcodeSubsets.Add(BarcodeSymbologySubsets.GS1_128)   
   
        ' recognize barcodes in image
        Dim infos As IBarcodeInfo() = reader.ReadBarcodes(filename)   
   
        ' for each found barcode
        For j As Integer = 0 To infos.Length - 1   
            Dim info As GS1BarcodeInfo = DirectCast(infos(j), GS1BarcodeInfo)   
   
            ' print barcode symbology
            Console.WriteLine(info.BarcodeSubset)   
   
            ' print barcode region on image
            Console.WriteLine(info.Region.ToString())   
   
            ' print Transmitted data
            Console.WriteLine(String.Format("Transmitted data            : {0} ", info.TransmittedData))   
   
            ' print values of Application identifiers
            Dim printableValue As New StringBuilder()   
            Dim aiValues As GS1ApplicationIdentifierValue() = info.ApplicationIdentifierValues   
            For i As Integer = 0 To aiValues.Length - 1   
                Dim aiValue As GS1ApplicationIdentifierValue = aiValues(i)   
                Dim ai As GS1ApplicationIdentifier = aiValue.ApplicationIdentifier   
                Console.WriteLine(String.Format("Application identifier {0}    : {1}", i + 1, ai.ApplicationIdentifier))   
                Console.WriteLine(String.Format("  Value                     : {0}", aiValue.Value))   
                Console.WriteLine(String.Format("  Data title                : {0}", ai.DataTitle))   
                Console.WriteLine(String.Format("  Data content              : {0}", ai.DataContent))   
                Console.WriteLine(String.Format("  Format                    : {0}", ai.Format))   
                Console.WriteLine(String.Format("  Is contains decimal point : {0}", ai.IsContainsDecimalPoint))   
                Console.WriteLine(String.Format("  Is variable length        : {0}", ai.IsVariableLength))   
                printableValue.Append(aiValue.ToString())   
            Next   
   
            ' print GS1 printable value
            Console.WriteLine("Printable GS1 value: " & printableValue.ToString())   
            Console.WriteLine()   
        Next   
    End Using   
End Sub

/// <summary>
/// Recognizes GS1-128 barcodes in specified image.
/// </summary>
/// <param name="filename">The filename of image file with barcodes.</param>
public static void Recognize(string filename)
{
    // create the barcode reader
    using (BarcodeReader reader = new BarcodeReader())
    {
        // specify that reader must search for GS1-128 barcodes only

        reader.Settings.ScanBarcodeTypes = BarcodeType.None;
        reader.Settings.ScanBarcodeSubsets.Add(BarcodeSymbologySubsets.GS1_128);

        // recognize barcodes in image
        IBarcodeInfo[] infos = reader.ReadBarcodes(filename);

        // for each found barcode
        for (int j = 0; j < infos.Length; j++)
        {
            GS1BarcodeInfo info = (GS1BarcodeInfo)infos[j];

            // print barcode symbology
            Console.WriteLine(info.BarcodeSubset);

            // print barcode region on image
            Console.WriteLine(info.Region.ToString());

            // print Transmitted data
            Console.WriteLine(string.Format("Transmitted data            : {0} ", info.TransmittedData));

            // print values of Application identifiers
            StringBuilder printableValue = new StringBuilder();
            GS1ApplicationIdentifierValue[] aiValues = info.ApplicationIdentifierValues;
            for (int i = 0; i < aiValues.Length; i++)
            {
                GS1ApplicationIdentifierValue aiValue = aiValues[i];
                GS1ApplicationIdentifier ai = aiValue.ApplicationIdentifier;
                Console.WriteLine(string.Format("Application identifier {0}    : {1}", i + 1, ai.ApplicationIdentifier));
                Console.WriteLine(string.Format("  Value                     : {0}", aiValue.Value));
                Console.WriteLine(string.Format("  Data title                : {0}", ai.DataTitle));
                Console.WriteLine(string.Format("  Data content              : {0}", ai.DataContent));
                Console.WriteLine(string.Format("  Format                    : {0}", ai.Format));
                Console.WriteLine(string.Format("  Is contains decimal point : {0}", ai.IsContainsDecimalPoint));
                Console.WriteLine(string.Format("  Is variable length        : {0}", ai.IsVariableLength));
                printableValue.Append(aiValue.ToString());
            }

            // print GS1 printable value
            Console.WriteLine("Printable GS1 value: " + printableValue.ToString());
            Console.WriteLine();
        }
    }
}