qr code encoding and decoding

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

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

3 Replies

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Vivek Kumar7y ago
Hi,
Please have a look to below links.

https://www.codeproject.com/Articles/1250071/QR-Code-Encoder-and-Decoder-NET-Class-Library-Writ
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Mohamed Abedallah7y ago
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
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Leon D7y ago
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
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