Read QR Code Type

VB C#

string(13) "Click to copy"

using IronQr;
using System.Drawing;
using System.Linq;

// Import an image containing a QR code
var inputImage = Image.FromFile("sample.jpg");

// Load the asset into a QrImageInput object
var imageInput = new QrImageInput(inputImage);

// Create a QR Reader object
var reader = new QrReader();

// Read the input and get all embedded QR codes
IEnumerable<QrResult> results = reader.Read(imageInput);

// Display the type of the first QR code found
Console.WriteLine($"The QR type is {results.First().QrType}");

Imports IronQr
Imports System.Drawing
Imports System.Linq

' Import an image containing a QR code
Dim inputImage As Image = Image.FromFile("sample.jpg")

' Load the asset into a QrImageInput object
Dim imageInput As New QrImageInput(inputImage)

' Create a QR Reader object
Dim reader As New QrReader()

' Read the input and get all embedded QR codes
Dim results As IEnumerable(Of QrResult) = reader.Read(imageInput)

' Display the type of the first QR code found
Console.WriteLine($"The QR type is {results.First().QrType}")

Install-Package IronQR

Read QR Code Type

Easily verify the QR code's format for intelligent processing with IronQR when dealing with multiple different formats of QR codes as inputs. IronQR exposes the detected symbology through QrResult.QrType, giving applications the information needed to validate, route, or log scanned codes based on their format.

5-step guide for reading a QR code type

using IronQr;
QrImageInput imageInput = new QrImageInput(Image.FromFile("sample.jpg"));
QrReader reader = new QrReader();
IEnumerable<QrResult> results = reader.Read(imageInput);
Console.WriteLine($"The QR type is {results.First().QrType}");

Code Explanation

An image containing a QR code is loaded from disk and wrapped in a QrImageInput object. A QrReader instance scans the input and returns a collection of QrResult objects, one per detected QR code. Accessing QrType on a result returns a string identifying the detected symbology, such as a standard QR code or another supported format. This value can be used directly for conditional routing, input validation, or logging.

Explore How to Read QR Code Types with IronQR.