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How to create Code39 (USD-3, Code 3 of 9, LOGMARS and in extended mode also know as Code39Extended, Code 39 Full ASCII mode) barcode using Bytescout.BarCode library for .NET

Output barcode screenshot (Code39 symbology)

Code39 sample barcode

Code 39 barcode (aka USD-3, 3 of 9). Code 39 symbology allows all ASCII symbols to be encoded in extended mode or symbols from this string "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ-. $/+%" in standard mode. This symbology used for example by U.S. Government and military, required for DoD applications

Important: you can also use BarCode Windows Forms or Web ImageControl instead. To use the Windows Formscontrol in Visual Studio please open Toolbox and open "Bytescout Software" tab and drag-n-drop "BarCode" control into your WinForms or ASP.NET application (in design mode)

Visual Basic:

Imports Bytescout.BarCode

Module Module1

Sub Main()

' Create new barcode

Dim barcode As New Barcode()

' Set symbology

barcode.Symbology = SymbologyType.Code39

' Set value

barcode.Value = "DATA"

' Save barcode to image

barcode.SaveImage("result.png")

' Show image in default image viewer

Process.Start("result.png")

End Sub

End Module

C#:

using System;

using System.Collections.Generic;

using System.Text;

using System.Diagnostics;

using Bytescout.BarCode;

namespace Sample

{

class Program

{

static void Main(string[] args)

{

// Create new barcode

Barcode barcode = new Barcode();

// Set symbology

barcode.Symbology = SymbologyType.Code39;

// Set value

barcode.Value = "DATA";

// Save barcode to image

barcode.SaveImage("result.png");

// Show image in default image viewer

Process.Start("result.png");

}

}

}

Tutorials: