web cam for scanning qr code in asp.net c# website

Question

i have a qr code and i want to have a web cam scanner in asp.net web page so that when i scan the qr code the code should copy to a label. thanks for the help in advance

Rajneesh Chaubey · Answer

Take a reference from this, suppose you have a page or image to scan: Bitmap bmp = page.ConvertToImage(192); // get all barcodes Barcode[] barcodes = BarcodeReader.ReadBarcodes(settings, bmp); foreach (Barcode barcode in barcodes) { Console.WriteLine( "Data: " + barcode.DataString); } Read QR Code from Scanned Image Bitmap bmp = new Bitmap(dir + "code.png" ); // config reader setting ReaderSettings settings = new ReaderSettings(); // Type of barcode settings.AddTypesToRead(BarcodeType.QRCode); // read all barcodes Barcode[] barcodes = BarcodeReader.ReadBarcodes(settings, bmp); foreach (Barcode barcode in barcodes) { Console.WriteLine( "Data: " + barcode.DataString); }

hemant Rawat · Answer

thank you very much sir if i will have any more doubt i will ask .. again thanx

hemant Rawat · Answer

thnx for the information Mr.Rajneesh chaubey but i want to make a scanner too for scanning from webcam.. for eg : i have a sq area in web form from where my camera will capture images or scann images so that the further procedure will happen.. so im asking how can i make that sq area and connect it with webcam..? thnax for ansss

Mohamed Abedallah · Answer

Using LEADTOOLS you can read the barcode from the images with few lines of code: string imageFileName = @ "Barcode2.tif" ; BarcodeEngine engine = new BarcodeEngine(); BarcodeReader reader = engine.Reader; using (RasterCodecs codecs = new RasterCodecs()) { using (RasterImage image = codecs.Load(imageFileName, 0, CodecsLoadByteOrder.BgrOrGray, 1, 1)) { BarcodeData barcode = reader.ReadBarcode(image, LeadRect.Empty, BarcodeSymbology.QR); if (barcode != null ) { Console.WriteLine( "Found at {0}, data:
{1}" , barcode.Bounds, barcode.Value); } else { Console.WriteLine( "Not found" ); } } } For details, take a look at this page: https://www.leadtools.com/sdk/barcode

Rajneesh Chaubey · Answer

I'm attaching a zip. This solution use a nuget package and it's free.