qr code encoding and decoding

Question

actually am working on qr code generating and decoding. so now i need to take print of qr code generated and to be verified to open the barrier. do needful code used code is: https://www.aspsnippets.com/Articles/Dynamically-generate-and-display-QR-code-Image-in-ASPNet.aspx

Vivek Kumar · Answer

Hi, Please have a look to below links. https://www.codeproject.com/Articles/1250071/QR-Code-Encoder-and-Decoder-NET-Class-Library-Writ

Mohamed Abedallah · Answer

For generating and reading QR barcodes, you can use LEADTOOLS. the code for writing QR barcode, the code is as simple as this: RasterImage img= RasterImage.Create(300,300,24,300,RasterColor.White); QRBarcodeData QData = BarcodeData.CreateDefaultBarcodeData(BarcodeSymbology.QR) as QRBarcodeData; BarcodeEngine bEngine = new BarcodeEngine(); QRBarcodeWriteOptions QwriteOptions = bEngine.Writer.GetDefaultOptions(QData.Symbology) as QRBarcodeWriteOptions; QData.Value = "www.LEADTOOLS.com" ; bEngine.Writer.CalculateBarcodeDataBounds( new LeadRect(0,0,img.Width,img.Height),300,300,QData,QwriteOptions); bEngine.Writer.WriteBarcode(img, QData, QwriteOptions); RasterCodecs _code = new RasterCodecs(); _code.Save(img, @ "QR.PNG" , RasterImageFormat.Png,24); For reading QR: BarcodeEngine engine = new BarcodeEngine(); BarcodeReader reader = engine.Reader; BarcodeData[] barcode = reader.ReadBarcodes(image, LeadRect.Empty, 5, new BarcodeSymbology[] { BarcodeSymbology.QR }); if (barcode != null ) Console.WriteLine( "Data:{0}, Found at location {1}" , barcode[0].Value, barcode[0].Bounds); You can find more details in the following links: https://www.leadtools.com/help/leadtools/v20/dh/ba/barcodewriter.html https://www.leadtools.com/help/leadtools/v20/dh/ba/barcodesymbology.html Also, you can use their cloud services for reading barcodes, see this link: https://services.leadtools.com/documentation/tutorials

Leon D · Answer

Check these links: https://www.e-iceblue.com/Tutorials/Spire.Barcode/Spire.Barcode-Program-Guide/Create-a-QR-Code-in-C.html https://www.e-iceblue.com/Tutorials/Spire.Barcode/Spire.Barcode-Program-Guide/How-to-Scan-Barcode-in-C.html

qr code encoding and decoding

Answers (3)