打印二维码

 QrEncoder qrEncoder = new QrEncoder(ErrorCorrectionLevel.H);
                QrCode qrCode = qrEncoder.Encode(QueryUrl);
                GraphicsRenderer renderer = new GraphicsRenderer(new FixedModuleSize(5, QuietZoneModules.Two), Brushes.Black, Brushes.White);
                string filesrc = System.Environment.CurrentDirectory + Guid.NewGuid().ToString() + ".png";
                using (MemoryStream stream = new MemoryStream())
                {
                    renderer.WriteToStream(qrCode.Matrix, ImageFormat.Png, stream);
                    //e.Graphics.DrawImage(Image.FromStream(stream), this.centerPosition(this.paperWidth, barcode2d.Size.Width), y, (float)this.barcode2d.Size.Width, (float)this.barcode2d.Size.Height);
                    e.Graphics.DrawImage(Image.FromStream(stream), this.centerPosition(this.paperWidth, 175), y, 175, 175);
                }