C# QR Code Generator für .NET

using IronBarCode;
using System;
using System.Drawing;
using System.Linq;

Imports IronBarCode
Imports System
Imports System.Drawing
Imports System.Linq

using IronBarCode;

// Generate a Simple BarCode image and save as PDF
QRCodeWriter.CreateQrCode("hello world", 500, QRCodeWriter.QrErrorCorrectionLevel.Medium).SaveAsPng("MyQR.png");

Imports IronBarCode

' Generate a Simple BarCode image and save as PDF
QRCodeWriter.CreateQrCode("hello world", 500, QRCodeWriter.QrErrorCorrectionLevel.Medium).SaveAsPng("MyQR.png")

using IronBarCode;
using IronSoftware.Drawing;

// You may add styling with color, logo images or branding:
QRCodeLogo qrCodeLogo = new QRCodeLogo("visual-studio-logo.png");
GeneratedBarcode myQRCodeWithLogo = QRCodeWriter.CreateQrCodeWithLogo("https://ironsoftware.com/", qrCodeLogo);
myQRCodeWithLogo.ResizeTo(500, 500).SetMargins(10).ChangeBarCodeColor(Color.DarkGreen);

// Logo will automatically be sized appropriately and snapped to the QR grid.
myQRCodeWithLogo.SaveAsPng("myQRWithLogo.png");

Imports IronBarCode
Imports IronSoftware.Drawing

' You may add styling with color, logo images or branding:
Private qrCodeLogo As New QRCodeLogo("visual-studio-logo.png")
Private myQRCodeWithLogo As GeneratedBarcode = QRCodeWriter.CreateQrCodeWithLogo("https://ironsoftware.com/", qrCodeLogo)
myQRCodeWithLogo.ResizeTo(500, 500).SetMargins(10).ChangeBarCodeColor(Color.DarkGreen)

' Logo will automatically be sized appropriately and snapped to the QR grid.
myQRCodeWithLogo.SaveAsPng("myQRWithLogo.png")

using IronBarCode;

// You may add styling with color, logo images or branding:
QRCodeLogo qrCodeLogo = new QRCodeLogo("visual-studio-logo.png");
GeneratedBarcode myQRCodeWithLogo = QRCodeWriter.CreateQrCodeWithLogo("https://ironsoftware.com/", qrCodeLogo);

myQRCodeWithLogo.ChangeBarCodeColor(System.Drawing.Color.DarkGreen);

// Save as PDF
myQRCodeWithLogo.SaveAsPdf("MyQRWithLogo.pdf");

// Also Save as HTML
myQRCodeWithLogo.SaveAsHtmlFile("MyQRWithLogo.html");

Imports IronBarCode

' You may add styling with color, logo images or branding:
Private qrCodeLogo As New QRCodeLogo("visual-studio-logo.png")
Private myQRCodeWithLogo As GeneratedBarcode = QRCodeWriter.CreateQrCodeWithLogo("https://ironsoftware.com/", qrCodeLogo)

myQRCodeWithLogo.ChangeBarCodeColor(System.Drawing.Color.DarkGreen)

' Save as PDF
myQRCodeWithLogo.SaveAsPdf("MyQRWithLogo.pdf")

' Also Save as HTML
myQRCodeWithLogo.SaveAsHtmlFile("MyQRWithLogo.html")

using IronBarCode;
using IronSoftware.Drawing;
using System;

// Verifying QR Codes
QRCodeLogo qrCodeLogo = new QRCodeLogo("visual-studio-logo.png");
GeneratedBarcode MyVerifiedQR = QRCodeWriter.CreateQrCodeWithLogo("https://ironsoftware.com/", qrCodeLogo);

MyVerifiedQR.ChangeBarCodeColor(System.Drawing.Color.LightBlue);

if (!MyVerifiedQR.Verify())
{
    Console.WriteLine("\t LightBlue is not dark enough to be read accurately.  Lets try DarkBlue");
    MyVerifiedQR.ChangeBarCodeColor(Color.DarkBlue);
}
MyVerifiedQR.SaveAsHtmlFile("MyVerifiedQR.html");

// open the barcode html file in your default web browser
System.Diagnostics.Process.Start("MyVerifiedQR.html");

Imports Microsoft.VisualBasic
Imports IronBarCode
Imports IronSoftware.Drawing
Imports System

' Verifying QR Codes
Private qrCodeLogo As New QRCodeLogo("visual-studio-logo.png")
Private MyVerifiedQR As GeneratedBarcode = QRCodeWriter.CreateQrCodeWithLogo("https://ironsoftware.com/", qrCodeLogo)

MyVerifiedQR.ChangeBarCodeColor(System.Drawing.Color.LightBlue)

If Not MyVerifiedQR.Verify() Then
	Console.WriteLine(vbTab & " LightBlue is not dark enough to be read accurately.  Lets try DarkBlue")
	MyVerifiedQR.ChangeBarCodeColor(Color.DarkBlue)
End If
MyVerifiedQR.SaveAsHtmlFile("MyVerifiedQR.html")

' open the barcode html file in your default web browser
System.Diagnostics.Process.Start("MyVerifiedQR.html")

using IronBarCode;
using System;
using System.Linq;

// Create Some Binary Data - This example equally well for Byte[] and System.IO.Stream
byte[] BinaryData = System.Text.Encoding.UTF8.GetBytes("https://ironsoftware.com/csharp/barcode/");

// WRITE QR with Binary Content
QRCodeWriter.CreateQrCode(BinaryData, 500).SaveAsImage("MyBinaryQR.png");

// READ QR with Binary Content
var MyReturnedData = BarcodeReader.Read("MyBinaryQR.png").First();
if (BinaryData.SequenceEqual(MyReturnedData.BinaryValue))
{
    Console.WriteLine("\t Binary Data Read and Written Perfectly");
}
else
{
    throw new Exception("Corrupted Data");
}

Imports Microsoft.VisualBasic
Imports IronBarCode
Imports System
Imports System.Linq

' Create Some Binary Data - This example equally well for Byte[] and System.IO.Stream
Private BinaryData() As Byte = System.Text.Encoding.UTF8.GetBytes("https://ironsoftware.com/csharp/barcode/")

' WRITE QR with Binary Content
QRCodeWriter.CreateQrCode(BinaryData, 500).SaveAsImage("MyBinaryQR.png")

' READ QR with Binary Content
Dim MyReturnedData = BarcodeReader.Read("MyBinaryQR.png").First()
If BinaryData.SequenceEqual(MyReturnedData.BinaryValue) Then
	Console.WriteLine(vbTab & " Binary Data Read and Written Perfectly")
Else
	Throw New Exception("Corrupted Data")
End If

using IronBarCode;
using System;
using System.Linq;

BarcodeResults result = BarcodeReader.Read("QR.png", new BarcodeReaderOptions() { ExpectBarcodeTypes = BarcodeEncoding.QRCode });
if (result != null)
{
    Console.WriteLine(result.First().Value);
}

Imports IronBarCode
Imports System
Imports System.Linq

Private result As BarcodeResults = BarcodeReader.Read("QR.png", New BarcodeReaderOptions() With {.ExpectBarcodeTypes = BarcodeEncoding.QRCode})
If result IsNot Nothing Then
	Console.WriteLine(result.First().Value)
End If

using IronBarCode;
using System;
using System.Linq;

BarcodeReaderOptions options = new BarcodeReaderOptions
{
    Speed = ReadingSpeed.Faster,
    ExpectMultipleBarcodes = false,
    ExpectBarcodeTypes = BarcodeEncoding.All,
    Multithreaded = false,
    MaxParallelThreads = 0,
    CropArea = null,
    UseCode39ExtendedMode = false,
    RemoveFalsePositive = false,
    ImageFilters = null
};

BarcodeResults result = BarcodeReader.Read("QR.png", options);
if (result != null)
{
    Console.WriteLine(result.First().Value);
}

Imports IronBarCode
Imports System
Imports System.Linq

Private options As New BarcodeReaderOptions With {
	.Speed = ReadingSpeed.Faster,
	.ExpectMultipleBarcodes = False,
	.ExpectBarcodeTypes = BarcodeEncoding.All,
	.Multithreaded = False,
	.MaxParallelThreads = 0,
	.CropArea = Nothing,
	.UseCode39ExtendedMode = False,
	.RemoveFalsePositive = False,
	.ImageFilters = Nothing
}

Private result As BarcodeResults = BarcodeReader.Read("QR.png", options)
If result IsNot Nothing Then
	Console.WriteLine(result.First().Value)
End If