Important Update
With this source code sample, you may quickly learn how to decode QR codes in C#. ByteScout BarCode Reader SDK is the barcode decoder with support for code 39, code 128, QR Code, Datamatrix, GS1, PDF417, and all other popular barcodes. Can read barcodes from images, pdf, tiff documents, and live web camera. Supports noisy and damaged documents, can split and merge pdf and tiff documents based on barcodes. Can export barcode decoder results to XML, JSON, CSV, and into custom data structures. It can be used to decode QR codes using C#.
This code snippet below for ByteScout BarCode Reader SDK works best when you need to quickly decode QR code in your C# application. Follow the instructions from scratch to work and copy the C# code. Further enhancement of the code will make it more vigorous.
The free trial version of ByteScout BarCode Reader SDK is available for download from our website. Get it to try other source code samples for C#.
On-demand (REST Web API) version:
Web API (on-demand version)
On-premise offline SDK for Windows:
60 Day Free Trial (on-premise)
using System;
using System.IO;
using Bytescout.BarCodeReader;
namespace ReadQRCode
{
class Program
{
const string ImageFile = "QRCode.png";
static void Main()
{
Console.WriteLine("Reading barcode(s) from image {0}", Path.GetFullPath(ImageFile));
Reader reader = new Reader();
reader.RegistrationName = "demo";
reader.RegistrationKey = "demo";
// Set barcode type to find
reader.BarcodeTypesToFind.QRCode = true;
/* -----------------------------------------------------------------------
NOTE: We can read barcodes from specific page to increase performance.
For sample please refer to "Decoding barcodes from PDF by pages" program.
----------------------------------------------------------------------- */
// Read barcodes
FoundBarcode[] barcodes = reader.ReadFrom(ImageFile);
foreach (FoundBarcode barcode in barcodes)
{
Console.WriteLine("Found barcode with type '{0}' and value '{1}'", barcode.Type, barcode.Value);
}
// Cleanup
reader.Dispose();
Console.WriteLine("Press any key to exit..");
Console.ReadKey();
}
}
}
60 Day Free Trial or Visit ByteScout BarCode Reader SDK Home Page
Explore ByteScout BarCode Reader SDK Documentation
Explore Samples
Sign Up for ByteScout BarCode Reader SDK Online Training
Get Your API Key
Explore Web API Docs
Explore Web API Samples
also available as: