BarcodeGenerator.ExportToImage(Byte[], DXImageFormat) Method

Generates a barcode image for the supplied binary data.

Namespace: DevExpress.Docs.Barcode

Assembly: DevExpress.Docs.Barcode.v26.1.dll

Declaration

C#

public DXImage ExportToImage(
    byte[] binaryData,
    DXImageFormat format = null
)

VB.NET

Public Function ExportToImage(
    binaryData As Byte(),
    format As DXImageFormat = Nothing
) As DXImage

Parameters

Name	Type	Description
binaryData	Byte[]	The binary data to encode as a barcode.

Optional Parameters

Name	Type	Default	Description
format	DXImageFormat	null	The format of the generated image.

Returns

Type	Description
DXImage	The generated barcode image.

Remarks

The following code snippet encodes binary data to a QR code and exports it as an SVG image using the DXImage class:

C#

using DevExpress.Docs;
using DevExpress.Docs.Barcode;
using DevExpress.Drawing;
using System.Drawing;

namespace ConsoleApp1;

public class Program {
    public static async Task Main(string[] _) {

        // Configure QR code options.
        QRCodeOptions qrOptions = new QRCodeOptions {
            ErrorCorrectionLevel = QRCodeErrorCorrectionLevel.H,
            CompactionMode = QRCodeCompactionMode.Auto,
            IncludeQuietZone = false,
            Version = QRCodeVersion.Version10,
            ModuleSize = 40,
            BackColor = Color.LightGray,
            ShowText = false,
            Padding = new Padding(5),
            BorderWidth = 1,
            BorderColor = Color.Blue,
            Width = 500,
            Height = 500,
        };

        using BarcodeGenerator generator = new BarcodeGenerator(qrOptions);

        // Export binary data to a barcode image.
        byte[] data = { 0x48, 0x65, 0x6C, 0x6C, 0x6F };
        DXImage svgImage = generator.ExportToImage(data, DXImageFormat.Svg);

        // Save the barcode image to a file.
        using (FileStream stream = new FileStream("D:\\qrcode.svg", FileMode.Create, FileAccess.Write)) {
            svgImage.Save(stream, DXImageFormat.Svg);
        }
    }
}

VB.NET

Imports DevExpress.Docs
Imports DevExpress.Docs.Barcode
Imports DevExpress.Drawing
Imports System.Drawing

Namespace ConsoleApp1

    Public Class Program
        Public Shared Async Function Main(args As String()) As Task

            ' Configure QR code options.
            Dim qrOptions As New QRCodeOptions With {
                .ErrorCorrectionLevel = QRCodeErrorCorrectionLevel.H,
                .CompactionMode = QRCodeCompactionMode.Auto,
                .IncludeQuietZone = False,
                .Version = QRCodeVersion.Version10,
                .ModuleSize = 40,
                .BackColor = Color.LightGray,
                .ShowText = False,
                .Padding = New Padding(5),
                .BorderWidth = 1,
                .BorderColor = Color.Blue,
                .Width = 500,
                .Height = 500
            }

            Using generator As New BarcodeGenerator(qrOptions)

                ' Export binary data to a barcode image.
                Dim data As Byte() = {&H48, &H65, &H6C, &H6C, &H6F}
                Dim svgImage As DXImage = generator.ExportToImage(data, DXImageFormat.Svg)

                ' Save the barcode image to a file.
                Using stream As New FileStream("D:\qrcode.svg", FileMode.Create, FileAccess.Write)
                    svgImage.Save(stream, DXImageFormat.Svg)
                End Using
            End Using
        End Function
    End Class
End Namespace