Test/WpfApp1/Classes/QRClass.cs

using QRCoder;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Interop;
using System.Windows.Media.Imaging;
using System.Windows;
using System.Drawing;

namespace WpfApp1
{
    internal class QRClass
    {
        public static BitmapSource QR()
        {
            string text = "http://gogs.ngknn.ru:3000/Alexey/PP_Minin";
            QRCodeGenerator qr = new QRCodeGenerator();
            QRCodeData data = qr.CreateQrCode(text, QRCodeGenerator.ECCLevel.Q);
            QRCode code = new QRCode(data);
            Bitmap bitmap = code.GetGraphic(100);
            BitmapSource bitmapImage = (BitmapSource)Imaging.CreateBitmapSourceFromHBitmap(bitmap.GetHbitmap(), IntPtr.Zero, Int32Rect.Empty, BitmapSizeOptions.FromEmptyOptions());
            return bitmapImage;
        }
    }
}