This topic explains how to scan QR Code using C#. This article contains the steps to explain the algorithm and the code snippet to create the QR scanner in C#. Furthermore, there is no need to install any additional tool or application to work with this feature.

Steps to Scan QR Code using C#

1. Install Aspose.BarCode for .NET from the NuGet package manager to scan QR codes
2. Load the source QR image using the BarCodeReader class
3. Read the QR code from the source image
4. Get the barcode type using the CodeTypeName property and the encoded code text

The steps above further elaborate the program flow to read QR code in C#. The procedure will commence with configuring the API with the NuGet package manager plugin and loading the source image. Subsequently, the data encoded in the QR code is extracted and printed to the console or a dialog box based on your requirements.

Code to Scan QR Code From Image using C#

This code snippet is sufficient to develop a QR reader using C#. First, use the BarCodeRecognition namespace to initiate a barcode reader while setting the barcode type say QR, DatabarExpanded, DataMatrix, DotCode, ISBN, Pdf417, etc. Next, iterate through each recognition result and extract the barcode type, code text, code type name, and confidence from the result object.

In this guide, we learned to scan QR code using C#. Besides, if you want to create a QR code, read the article on Generate QR Code in C#.