HOME PURCHASE SITEMAP COMPANY
.NET Barcode ScannerVB.NET Scanning
Scan EAN-13
Service & Price
Our Customers
Contact Us Email: support@barcodelib.com
Home > .NET Barcode Scanner > VB.NET Barcode Recognition Guide > How to Use VB.NET Class Library to Read EAN-13 Barcodes in .NET Applications
Download Barcode Reader for .NET Trial

VB.NET EAN-13 Barcode Scanner & Reader Library

How to Read & decode EAN-13 Barcode Using Free Sample VB.NET Programming Code
  • An easy-to-use EAN-13 .net barcode reader, compatible with both VB.NET & C# class
  • Professional EAN-13 decoding dll with high reading speed in VB.NET applications
  • Can be customized to scan EAN-13 in a specific area using free VB.NET code
  • Decode EAN-13 barcode images in VB.NET class & VB ASP.NET web applications
  • Able to read & output over 20 linear & 2D barcode types using VB.NET library
  • Royalty-free VB.NET Barcode Reader Library Server License for .NET Programmers
This document provides a technical guide for scanning and reading EAN-13 barcode images in Visual Basic .NET Windows applications, with specific support for Windows Forms and WPF.

Scanning and reading EAN-13 barcodes from images is a core function of the BarcodeLib .NET Barcode Reader SDK control. It is compatible with Microsoft Visual Studio .NET Framework 2.0 and later versions. The BarcodeLib VB.NET barcode scanner is a robust and mature .NET barcode recognition component for VB.NET projects. One can easily scan and decode linear and 2D barcodes from image documents in VB.NET class, console application, ASP.NET web projects, and VB.NET Windows software (including WinForms and WPF).
Guide to Embed VB.NET EAN 13 Bar Coding Reader SDK into VS
  1. Download & unzip the free trial package and find "BarcodeLib.BarcodeReader.dll". Then click "Add Reference..." in the Solution Explorer and add above reader dll to your project reference.
Guide to Scan EAN 13 Barcode Images Using VB.NET Class Programming
Use one-line VB.NET programming code, you can read & encode all EAN13 barcode images from an image source called "ean13-vbnet.gif".
     Dim datas() As String = BarcodeReader.read("c:/ean13-vbnet.gif", BarcodeReader.EAN13)
Guide to Customize EAN-13 Barcode Encoding SDK Using VB.NET Code
If you meet the below situations, you could actually optimize the scanning effects by activating some special features of VB.NET EAN-13 Barcode Encoding SDK.

1. Need to read a maximum EAN-13 barcode

  1. When you are under such a condition, you just need to set maxOneBarcodePerPage to true. Then, our EAN13 barcode scanner will stop reading once it detects one barcode.
  2. If you set maxOneBarcodePerPage to false, our reader will use total 5 algorithms and each will read the whole source file from 4 directions.

2. Need to decode EAN13 barcodes which are concentrated in one certain area of the image file

When you are under such a condition, you could command the barcode reader to scan in a specific area by axis-positioning.
  1. Please note the point X, Y values are expressed in percentage of the whole image, so image most left top point is (0%, 0%), and most right bottom point is (100%, 100%).
The following free VB.NET codes are used to direct scanner to read the top 20% and bottom 20% area of the image.
     Dim setting As OptimizeSetting = New OptimizeSetting()

     setMaxOneBarcodePerPage(True)

     Dim top20 As ScanArea = New ScanArea(New Drawing.PointF(0.0F, 0.0F), New Drawing.PointF(100.0F, 20.0F))

     Dim bottom20 As ScanArea = New ScanArea(New Drawing.PointF(0.0F, 80.0F), New Drawing.PointF(100.0F, 100.0F))

     Dim areas As List(Of ScanArea) = New List(Of ScanArea)
     areas.Add(top20)
     areas.Add(bottom20)

     setting.setAreas(areas)

     Dim datas() As String = BarcodeReader.read("c:/ean13-vbnet.gif", BarcodeReader.EAN13, setting)


Scan EAN-13 Barcodes in VB.NET WinForms and WPF Applications

This section demonstrates how to scan and recognize EAN-13 (13-digit international standard linear barcode) using the BarcodeLib VB.NET Barcode Reader library. EAN-13 barcode scanning can be implemented with a direct method call in VB.NET. The core scanning method accepts an image source and target barcode type as input parameters. Follow these steps to scan EAN-13 barcodes in VB.NET (compatible with WinForms and WPF):
  • Call the core decoding method BarcodeScanner.Scan().
  • Pass the barcode image file path as the first parameter.
  • Specify the barcode type as BarcodeType.EAN13.
  • The method returns a string array containing all decoded barcode data.
Note: This method supports common image formats (GIF, PNG, JPG) in VB.NET desktop applications (Windows Forms and WPF). For EAN-13 barcodes, the returned string includes the full 13 digits; the check digit is automatically verified by the library.


Summary

This page has covered the basic scanning procedure for EAN-13 barcodes using BarcodeLib in VB.NET environments, including Windows Forms and WPF. The library automatically verifies the embedded check digit and returns valid data only. For advanced features such as reading EAN-13 with add on symbols, extracting barcode position, or scanning from multi page TIFF files, refer to the complete BarcodeLib .NET documentation.
How to Use Free VB.NET Code to Scan Other Linear & 2D Barcodes
Decode VB 1D Barcodes:
Decode VB 2D Barcodes:
Use VB to Scan Linear Barcodes: Codabar in VB.NET, Code 39 in VB.NET, Code 128 in VB.NET, Interleaved 2 of 5 in VB.NET, EAN-8 in VB.NET, EAN-13 in VB.NET, UPC-A in VB.NET, UPC-E in VB.NET.

Use VB to Scan Matrix Barcodes: Data Matrix in VB.NET, PDF417 in VB.NET, QR Code in VB.NET.
EAN-13 Linear Barcode Reader SDKs for Other .NET Projects
The following links are connected to other .NET applications using EAN-13 decoding SDKs:




.NET Barcode Reader Lib, ASP.NET Barcode Reader Lib, C# Barcode Reader Lib, VB.NET Barcode Reader Lib, .NET EAN-13 Reader Lib, ASP.NET EAN-13 Reader Lib, C# EAN-13 Reader Lib, VB.NET EAN-13 Reader Lib.
Copyright © 2026 BarcodeLib.com. All rights reserved.
We partner with .NET Document Imaging Expert RasterEdge.com, which provides ASP.NET HTML5 Document Viewer, MVC Document Viewer, ASP.NET PDF Viewer, ASP.NET PDF Editor, MVC PDF Viewer, ASP.NET Annotate PDF, C# Read PDF file, C# Convert PDF to SVG, C# extract pdf pages, C# insert pdf pages, C# delete pdf pages, C# PDF Converter, .net imaging sdk, C# Convert PDF to HTML.