QR Code

• May 22, 2026
• 3 minutes to read

A QR Code (QR is the abbreviation for Quick Response) is a two-dimensional code, readable by QR scanners, mobile phones with a camera, and smartphones. QR Code can encode textual, numeric and binary data.

View Example

Examples

Configure Barcode Settings (QRCodeOptions)

Use the QRCodeOptions class to configure QRCode settings.

The following code snippet creates a QR Code barcode and specifies its settings:

C#

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

using var fileStream = new FileStream("logo.png", FileMode.Open);

var qrOptions = new QRCodeOptions();
qrOptions.ErrorCorrectionLevel = QRCodeErrorCorrectionLevel.H;
qrOptions.CompactionMode = QRCodeCompactionMode.Auto;
qrOptions.IncludeQuietZone = false;
qrOptions.Logo = DXImage.FromStream(fileStream);
qrOptions.Version = QRCodeVersion.Version10;
qrOptions.ModuleSize = 40;
qrOptions.BackColor = Color.LightGray;
qrOptions.ShowText = false;
qrOptions.Padding = new Padding(5);
qrOptions.BorderWidth = 1;
qrOptions.BorderColor = Color.Blue;

using var qrOptionsStream = new FileStream(Path.Combine(outDir, "barcode_symbology_qr_code.png"), FileMode.Create, FileAccess.Write);
using var qrOptionsGenerator = new BarcodeGenerator(qrOptions);
qrOptionsGenerator.Export("https://www.devexpress.com", qrOptionsStream, DXImageFormat.Png);

VB.NET

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

Using fileStream As New FileStream("logo.png", FileMode.Open)
    qrOptions.Logo = DXImage.FromStream(fileStream)
End Using

Dim qrOptions As New QRCodeOptions()
qrOptions.ErrorCorrectionLevel = QRCodeErrorCorrectionLevel.H
qrOptions.CompactionMode = QRCodeCompactionMode.Auto
qrOptions.IncludeQuietZone = False
qrOptions.Version = QRCodeVersion.Version10
qrOptions.ModuleSize = 40
qrOptions.BackColor = Color.LightGray
qrOptions.ShowText = False
qrOptions.Padding = New Padding(5)
qrOptions.BorderWidth = 1
qrOptions.BorderColor = Color.Blue

Using qrOptionsStream As New FileStream(Path.Combine(outDir, "barcode_symbology_qr_code.png"), FileMode.Create, FileAccess.Write)
    Using qrOptionsGenerator As New BarcodeGenerator(qrOptions)
        qrOptionsGenerator.Export("https://www.devexpress.com", qrOptionsStream, DXImageFormat.Png)
    End Using
End Using

Configure Barcode Settings (Fluent API)

Use the QRCodeOptionsBuilder class to configure QRCode settings with Fluent API.

The following code snippet creates a QR Code barcode and specifies its settings:

C#

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

using var fileStream = new FileStream("logo.png", FileMode.Open);

var qrcode = QRCodeOptionsBuilder.Create()
    .WithErrorCorrectionLevel(QRCodeErrorCorrectionLevel.H)
    .WithCompactionMode(QRCodeCompactionMode.Auto)
    .WithIncludeQuietZone(true)
    .WithLogo(DXImage.FromStream(fileStream))
    .WithVersion(QRCodeVersion.Version10)
    .WithModuleSize(40)
    .WithBackColor(Color.LightGray)
    .WithShowText(false)
    .WithPadding(5)
    .WithBorderWidth(1)
    .WithBorderColor(Color.Blue)
    .Build();

var filePath = Path.GetFullPath("qrcode.png");

using var stream = new FileStream(filePath, FileMode.Create);
using var generator = new BarcodeGenerator(qrcode);
generator.Export("https://www.devexpress.com", stream, DXImageFormat.Png);

VB.NET

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

Using fileStream As New FileStream("logo.png", FileMode.Open)

Dim qrcode = QRCodeOptionsBuilder.Create() _
    .WithErrorCorrectionLevel(QRCodeErrorCorrectionLevel.H) _
    .WithCompactionMode(QRCodeCompactionMode.Auto) _
    .WithIncludeQuietZone(True) _
    .WithLogo(DXImage.FromStream(fileStream)) _
    .WithVersion(QRCodeVersion.Version20) _
    .WithBackColor(Color.LightGray) _
    .WithShowText(False) _
    .WithPadding(5) _
    .WithBorderWidth(1) _
    .WithBorderColor(Color.Blue) _
    .Build()

Dim filePath = Path.GetFullPath("qrcode.png")

Using stream As New FileStream(filePath, FileMode.Create)
    Using generator As New BarcodeGenerator(qrcode)
        generator.Export("https://www.devexpress.com", stream, DXImageFormat.Png)
    End Using
End Using

Symbology-Specific Options

Property	Description
CompactionMode	Gets or sets the compaction mode for the QR code.
ErrorCorrectionLevel	Gets or sets the error correction level for the QR code.
FrameOptions	Specifies frame options for the QR code.
IncludeQuietZone	Specifies whether to include a quiet zone (a margin of empty space) around the code.
Logo	Gets or sets the logo image of the QR code.
Version	Gets or sets the QR code version.