A free copy of this standard is available here. The QR Code is defined by the international standard ISO/IEC 18004. The square is surrounded by a white quite zone. Visually, it is a square made of small black and white square modules. The relevant " using" statement must be added to all your source files: When your application is published, the relevant library file must be included and installed in the same folder as your executable (. Select the Browse tab and navigate your file system to the location of the required library. Go to the Solution Explorer, right click on References and select Add Reference. Start the Visual Studio C# program and open your application. Install either the QRCodeEncoderLibrary.dll or the QRCodeDecoderLibrary.dll in your development area. Integrating the code to your application requires the following steps. Each solution is made of one library project and two demo/test projects. The open source code attached is made of two Visual Studio solutions. The QR Code encoder part of this library is includer in the PDF File Writer C# Class Library article. Please note section QR Code Video Decoder at the bottom of this article. The video camera software is based on Direct Show Library. QRCodeVideoDecoder: A demo program combining QR Code decoder and video camera image capture.QRCodeDecoderDemo: A demo program showing how to decode Bitmap image of a QR Code and retrieve the string or byte array.QRCodeDecoderLibrary: A library exposing QR Code decoder.NET Core demo program showing how to encode a text file or a binary file into a QR Code image file. QRCodeEncoderDemo: A Windows Form demo program showing how to encode a string or a byte array into a QR Code image file.Visual studio will produce two DLL files one for net462 and one for netstandardapp2.0. QRCodeEncoderLibrary: A library exposing QR Code encoder and command line encoder.It is used for encoding data subject to alternative interpretations of byte values (e.g. The number is not part of the QR Code data. The assignment number range is zero to 999999. Version 2.1.0 Support was added for ECI Assignment Number. The source downloads attached to this article include two libraries and four demo/test applications. The attached source code is made of two solutions, a QR Code Encoder solution and a QR Code decoder solution. The QR Code libraries allows your program to create (encode) QR Code image or, read (decode) an image containing one or more QR Codes.
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