QR Code with iTextSharp and IronBarcode / QRCoder / Spire Barcode

Question

IronBarcode (preferred)

We want to print a QR Code in a Label with iTextSharp. We use IronBarcode to generate the Barcode. Also see: IronBarcode Tutorial

var label = new Label(Enums.Alignment.CENTER);

// label.AddText("Nr.     " + index.ToString("000000"), "Verdana", 12, embedFont: true); // YEAH this works fine

var qrcode = QRCodeWriter.CreateQrCode(index.ToString(), 100);
var image = qrcode.GetInstance(); image.ScaleToFitHeight = false;
label.AddImage(image);

labelCreator.AddLabel(label);

Error:

"GeneratedBarcode" contain no defintion for "GetInstance", and there is no method who would accept an argument from typ "GeneratedBarcode".

QRCoder

Also we tried it with QRCoder / Found here: QRCoder Tutorial

var label = new Label(Enums.Alignment.CENTER);

// label.AddText("Nr.     " + index.ToString("000000"), "Verdana", 12, embedFont: true); // YEAH this works fine

var qrGenerator = new QRCodeGenerator();
var qrCodeData = qrGenerator.CreateQrCode(index.ToString(), QRCodeGenerator.ECCLevel.Q);
var qrCode = new Base64QRCode(qrCodeData);
var qrCodeImageAsBase64 = qrCode.GetGraphic(8);
var imageBytes = Convert.FromBase64String(qrCodeImageAsBase64);

var image = Image.GetInstance(imageBytes);
image.ScaleAbsoluteWidth(40);
image.ScaleAbsoluteHeight(40);

label.AddImage(image);

labelCreator.AddLabel(label);

Error:

"Image" contain no defintion for "GetInstance".

Other try

If we use using iTextSharp.text; and using iTextSharp.text.pdf;

Error:

Argument "1": Convert from "iTextSharp.text.Image" to "System.IO.Stream" not possible

How we can fix this problem? Thanks for your input!

~ edit

This is our function to add the Image from label.cs. Have a look to this project we use as basic: SharpPDFLabel.

public void AddImage(Stream img)
{
var mem = new System.IO.MemoryStream();
CopyStream(img, mem);
_images.Add(mem.GetBuffer());
}

In a second step we want to add an image to our barcode, preferred is the solution of IronBarcode.

Answer 1

SOLUTION

We open a MemoryStream and put into them our QR / picture. In our function behind them we want to read a "Stream qrstream". It must be "MemoryStream qrstream".

We use now "Spire Barcode" instead of "IronBarcode" or "QRCoder"

wrong

public void AddImage(Stream qrstream)
        {

            // var mem = new MemoryStream(); // not needed
            // CopyStream(qrstream, mem); // not needed
            _images.Add(qrstream.GetBuffer());
        }

correct

public void AddImage(MemoryStream qrstream)
        {
            // var mem = new MemoryStream(); // not needed
            // CopyStream(qrstream, mem); // not needed
            _images.Add(qrstream.GetBuffer());
        }

function to create stream

               //Create a BarcodeSettings object
               BarcodeSettings settings = new BarcodeSettings();

               //Set barcode type, error correction level, data, etc.
               settings.Type = BarCodeType.QRCode;
               settings.QRCodeECL = QRCodeECL.H;
               settings.X = 1.4f;
               settings.AutoResize = true;
               settings.HasBorder = false;
               settings.ShowText = false;
               string data = "MY TEXT IN QR CODE";
               settings.Data = data;
               settings.Data2D = data;

               //Generate QR image based on the settings
               BarCodeGenerator generator = new BarCodeGenerator(settings);
               Image image = generator.GenerateImage();

               // Put Image to Stream
               var qrstream = new System.IO.MemoryStream();
               image.Save(qrstream, System.Drawing.Imaging.ImageFormat.Png);

               // Put QR Code to Label as Image
               label.AddImage(qrstream);

function to add image to cell

foreach (var img in _images)
            {
                var pdfImg = iTextSharp.text.Image.GetInstance(img);
                cellContent.Add(new Chunk(pdfImg, 0, 0));
            }

Running now, great!