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
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