C# Tutorial – QR Code Scanner using Webcam in C# | FoxLearn


Welcome to FoxLearn In this tutorial, I’ll show you how to create a QR Code scanner using webcam or camera Open your form designer, then drag Label, Combobox, PictureBox, TextBox and Button controls from the Visual Studio Toolbox into your form designer You can design a simple user interface that allows you to scan QR Code from your webcam or camera Right-click on your project, then select Manage Nuget Packages Next, you should install the AForge library into your project AForge.NET is an open source c-sharp framework designed for developers and researchers in the fields of Computer Vision and Artificial Intelligence image processing, neural networks, genetic algorithms, fuzzy logic, machine learning, robotics, etc To read qr code you can use the ZXing.Net library It is a port of ZXing, an open-source, multi-format 1D/2D barcode image processing library originally implemented in Java It has been ported by hand with a lot of optimizations and improvements The AForge.Video.DirectShow library contains classes, which allow to access video sources using DirectShow interface. Such as, USB web cameras, capture devices, video files, etc First, you need to identify the webcam from your computer, then add the webcam name to the combobox Next, You need to add a new frame event handler that allows you to update pictures taken from your webcam to the PictureBox control You should close your webcam when closing your form Open your form designer, then drag a timer control from the Visual Studio Toolbox into your form designer Next, You need to add a tick event handler to the timer control We will use the timer control to maintain reading qr code from your webcam or camera every 1 second You can use the BarcodeReader class to decode your qr code If the decode is successful we will stop the timer, then stop the webcam or camera Thank you for watching this video and don’t forget to subscribe to my channel

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