VintaSoft Barcode .NET SDK 14.3: Documentation for .NET developer
Vintasoft.Barcode.SymbologySubsets Namespace / Code39ExtendedBarcodeSymbology Class
Members Object Syntax Example Hierarchy Requirements SeeAlso
In This Topic
    Code39ExtendedBarcodeSymbology Class
    In This Topic
    Defines the Code39 Extended barcode symbology - subset of Code 39 barcode symbology.
    Object Model
    BarcodeSymbologySubset Code39ExtendedBarcodeSymbology
    Syntax
    'Declaration
    
    Public Class Code39ExtendedBarcodeSymbology
       Inherits BarcodeSymbologySubset
    
    
    public class Code39ExtendedBarcodeSymbology : BarcodeSymbologySubset
    
    
    public __gc class Code39ExtendedBarcodeSymbology : public BarcodeSymbologySubset*
    
    
    public ref class Code39ExtendedBarcodeSymbology : public BarcodeSymbologySubset^
    
    
    Example

    This C#/VB.NET code shows how to generate or recognize Code39 Extended barcode.

       
    ''' <summary>
    ''' Generates an image of Code 39 Extended barcode with specified value.
    ''' </summary>
    Public Shared Function Generate(value As String) As VintasoftBitmap   
        ' create barcode writer
        Using writer As New BarcodeWriter()   
            ' encode Code39 Extended value
            BarcodeSymbologySubsets.Code39Extended.Encode(value, writer.Settings)   
       
            ' create barcode image
            Return writer.GetBarcodeAsVintasoftBitmap()   
        End Using   
    End Function   
       
    ''' <summary>
    ''' Recognizes the Code 39 Extended barcode in specified image.
    ''' </summary>
    Public Shared Sub Recognize(image As VintasoftBitmap)   
        ' create the barcode reader
        Using reader As New BarcodeReader()   
            ' specify that reader must search for Code39 Extended barcodes only
       
            reader.Settings.ScanBarcodeTypes = BarcodeType.None   
            reader.Settings.ScanBarcodeSubsets.Add(BarcodeSymbologySubsets.Code39Extended)   
       
            ' recognize barcode in image
            Dim infos As IBarcodeInfo() = reader.ReadBarcodes(image)   
       
            ' for each found barcode
            For j As Integer = 0 To infos.Length - 1   
                Dim info As BarcodeSubsetInfo = DirectCast(infos(j), BarcodeSubsetInfo)   
       
                ' print barcode value
                Console.WriteLine(String.Format("{0} value: {1}", info.BarcodeSubset, info.Value))   
            Next   
        End Using   
    End Sub
    
    
    
    /// <summary>
    /// Generates an image of Code 39 Extended barcode with specified value.
    /// </summary>
    public static VintasoftBitmap Generate(string value)
    {
        // create barcode writer
        using (BarcodeWriter writer = new BarcodeWriter())
        {
            // encode Code39 Extended value
            BarcodeSymbologySubsets.Code39Extended.Encode(value, writer.Settings);
    
            // create barcode image
            return writer.GetBarcodeAsVintasoftBitmap();
        }
    }
    
    /// <summary>
    /// Recognizes the Code 39 Extended barcode in specified image.
    /// </summary>
    public static void Recognize(VintasoftBitmap image)
    {
        // create the barcode reader
        using (BarcodeReader reader = new BarcodeReader())
        {
            // specify that reader must search for Code39 Extended barcodes only
    
            reader.Settings.ScanBarcodeTypes = BarcodeType.None;
            reader.Settings.ScanBarcodeSubsets.Add(BarcodeSymbologySubsets.Code39Extended);
    
            // recognize barcode in image
            IBarcodeInfo[] infos = reader.ReadBarcodes(image);
    
            // for each found barcode
            for (int j = 0; j < infos.Length; j++)
            {
                BarcodeSubsetInfo info = (BarcodeSubsetInfo)infos[j];
    
                // print barcode value
                Console.WriteLine(string.Format("{0} value: {1}", info.BarcodeSubset, info.Value));
            }
        }
    }
    
    

    Inheritance Hierarchy

    System.Object
       Vintasoft.Barcode.BarcodeSymbology
          Vintasoft.Barcode.SymbologySubsets.BarcodeSymbologySubset
             Vintasoft.Barcode.SymbologySubsets.Code39ExtendedBarcodeSymbology

    Requirements

    Target Platforms: .NET 8; .NET 7; .NET 6; .NET Framework 4.8, 4.7, 4.6, 4.5, 4.0, 3.5

    See Also