C#で BarCode をストリームとしてエクスポートする方法

using IronBarCode;
using IronSoftware.Drawing;
using System.IO;
using System.Drawing.Imaging;

public class BarcodeStreamExporter
{
    public static void ExportMultipleFormats()
    {
        // Generate barcode with custom data
        var myBarcode = BarcodeWriter.CreateBarcode("PRODUCT-2024-001", BarcodeEncoding.Code128);

        // Apply styling
        myBarcode.ResizeTo(300, 150);
        myBarcode.SetMargins(10);
        myBarcode.AddAnnotationTextAboveBarcode("Product ID");

        // Export to different stream formats
        Stream pngStream = myBarcode.ToPngStream();
        Stream jpegStream = myBarcode.ToJpegStream();
        Stream pdfStream = myBarcode.ToPdfStream();
        Stream tiffStream = myBarcode.ToTiffStream();

        // Use with HTTP response (ASP.NET Core example)
        // return File(pngStream, "image/png", "barcode.png");
    }

    public static byte[] GenerateQRCodeBytes(string data)
    {
        // Create QR code with error correction
        var qrCode = QRCodeWriter.CreateQrCodeWithLogo(data, "logo.png", 500);

        // Convert to byte array via stream
        using (var stream = qrCode.ToStream())
        {
            using (var memoryStream = new MemoryStream())
            {
                stream.CopyTo(memoryStream);
                return memoryStream.ToArray();
            }
        }
    }
}

Imports IronBarCode
Imports IronSoftware.Drawing
Imports System.IO
Imports System.Drawing.Imaging

Public Class BarcodeStreamExporter
    Public Shared Sub ExportMultipleFormats()
        ' Generate barcode with custom data
        Dim myBarcode = BarcodeWriter.CreateBarcode("PRODUCT-2024-001", BarcodeEncoding.Code128)

        ' Apply styling
        myBarcode.ResizeTo(300, 150)
        myBarcode.SetMargins(10)
        myBarcode.AddAnnotationTextAboveBarcode("Product ID")

        ' Export to different stream formats
        Dim pngStream As Stream = myBarcode.ToPngStream()
        Dim jpegStream As Stream = myBarcode.ToJpegStream()
        Dim pdfStream As Stream = myBarcode.ToPdfStream()
        Dim tiffStream As Stream = myBarcode.ToTiffStream()

        ' Use with HTTP response (ASP.NET Core example)
        ' return File(pngStream, "image/png", "barcode.png")
    End Sub

    Public Shared Function GenerateQRCodeBytes(data As String) As Byte()
        ' Create QR code with error correction
        Dim qrCode = QRCodeWriter.CreateQrCodeWithLogo(data, "logo.png", 500)

        ' Convert to byte array via stream
        Using stream = qrCode.ToStream()
            Using memoryStream As New MemoryStream()
                stream.CopyTo(memoryStream)
                Return memoryStream.ToArray()
            End Using
        End Using
    End Function
End Class

using IronBarCode;
using System.IO;
using System.Collections.Generic;

public class StreamRoundTrip
{
    public static void ProcessBarcodeStream()
    {
        // Generate barcode and get stream
        var originalBarcode = BarcodeWriter.CreateBarcode("STREAM-TEST-123", BarcodeEncoding.Code128);
        Stream barcodeStream = originalBarcode.ToStream();

        // Read barcode back from stream
        var results = BarcodeReader.Read(barcodeStream);

        foreach (var result in results)
        {
            Console.WriteLine($"Value: {result.Value}");
            Console.WriteLine($"Format: {result.BarcodeType}");
        }

        // Don't forget to dispose of the stream
        barcodeStream.Dispose();
    }
}

Imports IronBarCode
Imports System.IO
Imports System.Collections.Generic

Public Class StreamRoundTrip
    Public Shared Sub ProcessBarcodeStream()
        ' Generate barcode and get stream
        Dim originalBarcode = BarcodeWriter.CreateBarcode("STREAM-TEST-123", BarcodeEncoding.Code128)
        Dim barcodeStream As Stream = originalBarcode.ToStream()

        ' Read barcode back from stream
        Dim results = BarcodeReader.Read(barcodeStream)

        For Each result In results
            Console.WriteLine($"Value: {result.Value}")
            Console.WriteLine($"Format: {result.BarcodeType}")
        Next

        ' Don't forget to dispose of the stream
        barcodeStream.Dispose()
    End Sub
End Class