How to Generate Barcode Images in C# .NET Applications

using IronBarCode;
using IronSoftware.Drawing;

// Fluent API for Barcode Image generation.
string value = "https://ironsoftware.com/csharp/barcode";
AnyBitmap barcodeBitmap = BarcodeWriter.CreateBarcode(value, BarcodeEncoding.PDF417).ResizeTo(300, 200).SetMargins(100).ToBitmap();
System.Drawing.Bitmap barcodeLegacyBitmap = (System.Drawing.Bitmap)barcodeBitmap;

Imports IronBarCode
Imports IronSoftware.Drawing

' Fluent API for Barcode Image generation.
Private value As String = "https://ironsoftware.com/csharp/barcode"
Private barcodeBitmap As AnyBitmap = BarcodeWriter.CreateBarcode(value, BarcodeEncoding.PDF417).ResizeTo(300, 200).SetMargins(100).ToBitmap()
Private barcodeLegacyBitmap As System.Drawing.Bitmap = CType(barcodeBitmap, System.Drawing.Bitmap)

using IronBarCode;
using IronSoftware.Drawing;

// Create a QR code with advanced styling options
GeneratedBarcode myBarCode = BarcodeWriter.CreateBarcode(
    "https://ironsoftware.com/csharp/barcode", 
    BarcodeWriterEncoding.QRCode
);

// Add descriptive text above the barcode
myBarCode.AddAnnotationTextAboveBarcode("Product URL:");

// Display the encoded value below the barcode
myBarCode.AddBarcodeValueTextBelowBarcode();

// Set consistent margins around the barcode
myBarCode.SetMargins(100);

// Customize the barcode color (purple in this example)
myBarCode.ChangeBarCodeColor(Color.Purple);

// Export as an HTML file for web integration
myBarCode.SaveAsHtmlFile("MyBarCode.html");

Imports IronBarCode
Imports IronSoftware.Drawing

' Create a QR code with advanced styling options
Dim myBarCode As GeneratedBarcode = BarcodeWriter.CreateBarcode("https://ironsoftware.com/csharp/barcode", BarcodeWriterEncoding.QRCode)

' Add descriptive text above the barcode
myBarCode.AddAnnotationTextAboveBarcode("Product URL:")

' Display the encoded value below the barcode
myBarCode.AddBarcodeValueTextBelowBarcode()

' Set consistent margins around the barcode
myBarCode.SetMargins(100)

' Customize the barcode color (purple in this example)
myBarCode.ChangeBarCodeColor(Color.Purple)

' Export as an HTML file for web integration
myBarCode.SaveAsHtmlFile("MyBarCode.html")

using IronBarCode;
using IronSoftware.Drawing;

// Generate, style, and convert a barcode in a single statement
string value = "https://ironsoftware.com/csharp/barcode";

// Create PDF417 barcode with chained operations
AnyBitmap barcodeBitmap = BarcodeWriter
    .CreateBarcode(value, BarcodeWriterEncoding.PDF417)  // Create PDF417 barcode
    .ResizeTo(300, 200)                                  // Set specific dimensions
    .SetMargins(10)                                      // Add 10px margins
    .ToBitmap();                                         // Convert to bitmap

// Convert to System.Drawing.Bitmap for legacy compatibility
System.Drawing.Bitmap legacyBitmap = barcodeBitmap;

Imports IronBarCode
Imports IronSoftware.Drawing

' Generate, style, and convert a barcode in a single statement
Dim value As String = "https://ironsoftware.com/csharp/barcode"

' Create PDF417 barcode with chained operations
Dim barcodeBitmap As AnyBitmap = BarcodeWriter _
    .CreateBarcode(value, BarcodeWriterEncoding.PDF417) _  ' Create PDF417 barcode
    .ResizeTo(300, 200) _                                  ' Set specific dimensions
    .SetMargins(10) _                                      ' Add 10px margins
    .ToBitmap()                                            ' Convert to bitmap

' Convert to System.Drawing.Bitmap for legacy compatibility
Dim legacyBitmap As System.Drawing.Bitmap = barcodeBitmap

// Generate and verify a barcode
GeneratedBarcode myBarcode = BarcodeWriter
    .CreateBarcode("TEST123", BarcodeWriterEncoding.Code128)
    .ResizeTo(200, 100)
    .ChangeBarCodeColor(Color.DarkBlue);

// Verify the barcode is still readable after modifications
bool isReadable = myBarcode.Verify("TEST123");
Console.WriteLine($"Barcode verification: {(isReadable ? "PASS" : "FAIL")}");

Imports System.Drawing

' Generate and verify a barcode
Dim myBarcode As GeneratedBarcode = BarcodeWriter _
    .CreateBarcode("TEST123", BarcodeWriterEncoding.Code128) _
    .ResizeTo(200, 100) _
    .ChangeBarCodeColor(Color.DarkBlue)

' Verify the barcode is still readable after modifications
Dim isReadable As Boolean = myBarcode.Verify("TEST123")
Console.WriteLine($"Barcode verification: {(If(isReadable, "PASS", "FAIL"))}")