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Barcodes in MS VB.NET and C#

A word of caution: You might be tempted to import the ActiveX Control BarCodeWiz.dll by clicking on Tools > Choose Toolbox Items... > COM Components > Browse... .

However, Visual Studio does not import the properties correctly.  When accessing the Picture property in a project compiled for x64 or Any CPU, an exception "A generic error occurred in GDI+" is thrown.

Instead, use the supplied Interop Assemblies as outlined in the steps below to ensure compatibility with both 32 and 64-bit projects.

Step 1. Add AxBarCodeWiz to Toolbox

  • Click on Tools > Choose Toolbox Items...

  • With .NET Framework Components selected, click Browse...

  • Select AxBARCODEWIZLib.dll. The default location of the file is:
    C:\Program Files\BarCodeWiz\BarCodeWiz ActiveX Control\Dll\Interop\4.0\AxBARCODEWIZLib.dll

Step 2. Add reference to BARCODEWIZLib.dll

  • Click Project > Add Project Reference...

  • Click on the Browse tab and select BARCODEWIZLib.dll. The default location of the file is:
    C:\Program Files\BarCodeWiz\BarCodeWiz ActiveX Control\Dll\Interop\4.0\BARCODEWIZLib.dll

Step 3. Edit Properties

  • In Solution Explorer click on BARCODEWIZLib and set Embed Interop Types to False and Copy Local to True.


  • AxBarCodeWiz is now available in the toolbox. Drag it onto a form as you would any other control.

VB.NET Example:

Public Class Form1
  Private Sub Button1_Click(ByVal sender As System.Object, _
                          ByVal e As System.EventArgs) Handles Button1.Click

      'Set the barcode properties.
      AxBarCodeWiz1.Symbology = BARCODEWIZLib.enumSYMBOLOGY.Code_128_Auto
      AxBarCodeWiz1.Barcode = "HELLO 123"

      Dim pd As New System.Drawing.Printing.PrintDocument
      AddHandler pd.PrintPage, AddressOf pd_PrintPage

      Dim pp As New PrintPreviewDialog
      pp.Document = pd
  End Sub

  Private Sub pd_PrintPage(ByVal sender As Object, _
                         ByVal ev As System.Drawing.Printing.PrintPageEventArgs)

      'Add the barcode at position (100,100).
      ev.Graphics.DrawImage(AxBarCodeWiz1.Picture, 100, 100)

      'No more pages, let's print.
      ev.HasMorePages = False
  End Sub

End Class

C# Example

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Drawing.Printing;

namespace WindowsApplication1
  public partial class Form1 : Form
      public Form1()

      private void button1_Click(object sender, EventArgs e)
         // Set the barcode properties.
          axBarCodeWiz1.Symbology = BARCODEWIZLib.enumSYMBOLOGY.Code_128_Auto;
          axBarCodeWiz1.Barcode = "HELLO 123";
          PrintPreviewDialog pp = new PrintPreviewDialog();
          PrintDocument pd = new PrintDocument();
          pd.PrintPage += new PrintPageEventHandler(pd_PrintPage);
          pp.Document = pd;

      private void pd_PrintPage(object sender, PrintPageEventArgs ev)
          // Add the barcode at position (100,100).
          ev.Graphics.DrawImage(axBarCodeWiz1.Picture, 100, 100);

          // No more pages, let's print.
          ev.HasMorePages = false;

See More

  • See more complete examples under:
    Documents\BarCodeWiz Examples\Barcode ActiveX Control\