VintaSoft Barcode .NET SDK 12.5
Vintasoft.Barcode.SymbologySubsets.XFACompressed Namespace / XFACompressedQRCodeBarcodeSymbology Class
Members Example




In This Topic
    XFACompressedQRCodeBarcodeSymbology Class
    In This Topic
    Defines the QR barcode symbology subset with barcode values, which are compressed as defined in Adobe XFA Specification.
    Object Model
    XFACompressedQRCodeBarcodeSymbology ClassBarcodeSymbologySubset Class
    Syntax
    'Declaration
     
    Public Class XFACompressedQRCodeBarcodeSymbology 
       Inherits XFACompressedBarcodeSymbologySubset
    'Usage
     
    Dim instance As XFACompressedQRCodeBarcodeSymbology
    public class XFACompressedQRCodeBarcodeSymbology : XFACompressedBarcodeSymbologySubset 
    public __gc class XFACompressedQRCodeBarcodeSymbology : public XFACompressedBarcodeSymbologySubset 
    public ref class XFACompressedQRCodeBarcodeSymbology : public XFACompressedBarcodeSymbologySubset 
    Example
    Here is an example that demonstrates how to generate QR barcode with XFA compressed data.
    ''' <summary>
    ''' Generates QR barcode with XFA compression.
    ''' </summary>
    Public Sub GenerateQrCodeBarcodeWithXfaCompression()
        Dim barcodeText As String =
            "https://www.vintasoft.com/vsbarcode-dotnet-index.html" & System.Environment.NewLine &
            "https://www.vintasoft.com/vstwain-dotnet-index.html" & System.Environment.NewLine &
            "https://www.vintasoft.com/vstwain-index.html" & System.Environment.NewLine &
            "https://www.vintasoft.com/vsimaging-dotnet-index.html" & System.Environment.NewLine &
            "https://www.vintasoft.com/vsannotation-dotnet-index.html" & System.Environment.NewLine &
            "https://www.vintasoft.com/vspdf-dotnet-index.html" & System.Environment.NewLine &
            "https://www.vintasoft.com/vsjbig2-dotnet-index.html" & System.Environment.NewLine &
            "https://www.vintasoft.com/vsjpeg2000-dotnet-index.html" & System.Environment.NewLine &
            "https://www.vintasoft.com/vsdoccleanup-dotnet-index.html" & System.Environment.NewLine &
            "https://www.vintasoft.com/vsocr-dotnet-index.html" & System.Environment.NewLine &
            "https://www.vintasoft.com/vsdicom-dotnet-index.html" & System.Environment.NewLine &
            "https://www.vintasoft.com/vsformsprocessing-dotnet-index.html" & System.Environment.NewLine &
            "https://www.vintasoft.com/vsoffice-dotnet-index.html"
                
        ' create the barcode writer
        Dim barcodeWriter As New Vintasoft.Barcode.BarcodeWriter()
                
        ' create the XFA compressed QR barcode symbology
        Dim xfaCompressedQrCodeBarcodeSymbology As New Vintasoft.Barcode.SymbologySubsets.XFACompressed.XFACompressedQRCodeBarcodeSymbology()
        ' encode barcode text using XFA compressed QR barcode symbology
        xfaCompressedQrCodeBarcodeSymbology.Encode(barcodeText, barcodeWriter.Settings)
                
        ' get barcode as image
        Using barcodeImage As System.Drawing.Image = barcodeWriter.GetBarcodeAsBitmap()
            ' save the barcode image to a file
            barcodeImage.Save("qr-barcode-with-xfa-compression.png")
        End Using
    End Sub
                
    ''' <summary>
    ''' Recognizes QR barcode with XFA compression.
    ''' </summary>
    Public Sub RecognizeQrCodeBarcodeWithXfaCompression()
        ' create barcode reader
        Using reader As New Vintasoft.Barcode.BarcodeReader()
            ' specify that reader must search for XFA compressed QR barcodes
            reader.Settings.ScanBarcodeSubsets.Add(Vintasoft.Barcode.SymbologySubsets.BarcodeSymbologySubsets.XFACompressedQRCode)
                
            ' specify that reader must search for horizontal barcodes only
            reader.Settings.ScanDirection = Vintasoft.Barcode.ScanDirection.Horizontal
                
            ' read barcodes from image file
            Dim barcodeInfos As Vintasoft.Barcode.IBarcodeInfo() = reader.ReadBarcodes("aztec-barcode-with-xfa-compression.png")
                
            ' if barcodes are not detected
            If barcodeInfos.Length = 0 Then
                System.Console.WriteLine("Barcodes are not found.")
            Else
                ' if barcodes are detected
                ' get information about recognized barcodes
                
                System.Console.WriteLine(String.Format("{0} barcode(s) found:", barcodeInfos.Length))
                System.Console.WriteLine()
                For i As Integer = 0 To barcodeInfos.Length - 1
                    Dim barcodeInfo As Vintasoft.Barcode.IBarcodeInfo = barcodeInfos(i)
                    System.Console.WriteLine(String.Format("[{0}:{1}]", i + 1, barcodeInfo.BarcodeType))
                    System.Console.WriteLine(String.Format("Value:      {0}", barcodeInfo.Value))
                    System.Console.WriteLine(String.Format("Region:     {0}", barcodeInfo.Region))
                    System.Console.WriteLine()
                Next
            End If
        End Using
    End Sub
    /// <summary>
    /// Generates QR barcode with XFA compression.
    /// </summary>
    public void GenerateQrCodeBarcodeWithXfaCompression()
    {
        string barcodeText =
            "https://www.vintasoft.com/vsbarcode-dotnet-index.html" + System.Environment.NewLine +
            "https://www.vintasoft.com/vstwain-dotnet-index.html" + System.Environment.NewLine +
            "https://www.vintasoft.com/vstwain-index.html" + System.Environment.NewLine +
            "https://www.vintasoft.com/vsimaging-dotnet-index.html" + System.Environment.NewLine +
            "https://www.vintasoft.com/vsannotation-dotnet-index.html" + System.Environment.NewLine +
            "https://www.vintasoft.com/vspdf-dotnet-index.html" + System.Environment.NewLine +
            "https://www.vintasoft.com/vsjbig2-dotnet-index.html" + System.Environment.NewLine +
            "https://www.vintasoft.com/vsjpeg2000-dotnet-index.html" + System.Environment.NewLine +
            "https://www.vintasoft.com/vsdoccleanup-dotnet-index.html" + System.Environment.NewLine +
            "https://www.vintasoft.com/vsocr-dotnet-index.html" + System.Environment.NewLine +
            "https://www.vintasoft.com/vsdicom-dotnet-index.html" + System.Environment.NewLine +
            "https://www.vintasoft.com/vsformsprocessing-dotnet-index.html" + System.Environment.NewLine +
            "https://www.vintasoft.com/vsoffice-dotnet-index.html";
                
        // create the barcode writer
        Vintasoft.Barcode.BarcodeWriter barcodeWriter = new Vintasoft.Barcode.BarcodeWriter();
                
        // create the XFA compressed QR barcode symbology
        Vintasoft.Barcode.SymbologySubsets.XFACompressed.XFACompressedQRCodeBarcodeSymbology xfaCompressedQrCodeBarcodeSymbology =
            new Vintasoft.Barcode.SymbologySubsets.XFACompressed.XFACompressedQRCodeBarcodeSymbology();
        // encode barcode text using XFA compressed QR barcode symbology
        xfaCompressedQrCodeBarcodeSymbology.Encode(barcodeText, barcodeWriter.Settings);
                
        // get barcode as image
        using (System.Drawing.Image barcodeImage = barcodeWriter.GetBarcodeAsBitmap())
        {
            // save the barcode image to a file
            barcodeImage.Save("qr-barcode-with-xfa-compression.png");
        }
    }
                
    /// <summary>
    /// Recognizes QR barcode with XFA compression.
    /// </summary>
    public void RecognizeQrCodeBarcodeWithXfaCompression()
    {
        // create barcode reader
        using (Vintasoft.Barcode.BarcodeReader reader = new Vintasoft.Barcode.BarcodeReader())
        {
            // specify that reader must search for XFA compressed QR barcodes
            reader.Settings.ScanBarcodeSubsets.Add(Vintasoft.Barcode.SymbologySubsets.BarcodeSymbologySubsets.XFACompressedQRCode);
                
            // specify that reader must search for horizontal barcodes only
            reader.Settings.ScanDirection = Vintasoft.Barcode.ScanDirection.Horizontal;
                
            // read barcodes from image file
            Vintasoft.Barcode.IBarcodeInfo[] barcodeInfos = reader.ReadBarcodes("qr-barcode-with-xfa-compression.png");
                
            // if barcodes are not detected
            if (barcodeInfos.Length == 0)
            {
                System.Console.WriteLine("Barcodes are not found.");
            }
            // if barcodes are detected
            else
            {
                // get information about recognized barcodes
                
                System.Console.WriteLine(string.Format("{0} barcode(s) found:", barcodeInfos.Length));
                System.Console.WriteLine();
                for (int i = 0; i < barcodeInfos.Length; i++)
                {
                    Vintasoft.Barcode.IBarcodeInfo barcodeInfo = barcodeInfos[i];
                    System.Console.WriteLine(string.Format("[{0}:{1}]", i + 1, barcodeInfo.BarcodeType));
                    System.Console.WriteLine(string.Format("Value:      {0}", barcodeInfo.Value));
                    System.Console.WriteLine(string.Format("Region:     {0}", barcodeInfo.Region));
                    System.Console.WriteLine();
                }
            }
        }
    }
    Inheritance Hierarchy

    System.Object
       Vintasoft.Barcode.BarcodeSymbology
          Vintasoft.Barcode.SymbologySubsets.BarcodeSymbologySubset
             Vintasoft.Barcode.SymbologySubsets.XFACompressed.XFACompressedBarcodeSymbologySubset
                Vintasoft.Barcode.SymbologySubsets.XFACompressed.XFACompressedQRCodeBarcodeSymbology

    Requirements

    Target Platforms: .NET 6; .NET 5; .NET Core 3.1; .NET Framework 4.8, 4.7, 4.6, 4.5, 4.0, 3.5

    See Also