How can we generate a Datamatrix code in base64 (or byte[])

[abennouna12]

Discussed in #509

^{Originally posted by abennouna12 July 12, 2023}
Hello,

I was using Datamatrix.Net to generate a Datamatrix code.

Today we have migrated to .NET 7 and this generation doesn't work anymore.

So I want to use ZXing.Net to generate this Datamatrix but I didn't find documentation about the subject.

Does anyone have an idea ?

Thanks.

I have started by writing these two lines but I want to convert the result into Base64 strinr or Vyte[] Without using System.Drawing

var writer = new DataMatrixWriter();
var image = writer.encode(content, BarcodeFormat.DATA_MATRIX, 300, 300);

[micjahn]

The main question is: what should be "inside" the base64 / byte[] representation? Should it be the contents of a JPG or BMP file which represents the generated datamatrix image? Or only the RGB values without any specific file format information?
How do you want to process the base64 string / byte array after generation?
The DataMatrixWriter class in your snippet gives you a BitMatrix instance. It doesn't use System.Drawing.

If you only need the raw RGB values you can use the class BarcodeWriterPixelData.

Alternatively you can use the class BarcodeWriterSvg if want to generate a scalable SVG image.