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Writing Barcodes
  1. Start Visual Studio .NET.
  2. Start with the project that you created in Reading Bar Codes Tutorial
  3. Drag and drop a button on Form1. Change the following properties: Property Value: Name: btnWriteBarCode Text: Write BarCode
  4. Add the following code for the btnWriteBarCode control’s click procedure:

    Visual Basic

                 Private Sub btnWriteBarCode_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnWriteBarCode.Click
                    Dim barcodeData As String() = New String(0){}
                    barcodeData(0) = "012345678901"
                    Dim barColor As BarcodeColor = New BarcodeColor()
                    Dim barData As BarcodeData = New BarcodeData()
                    barData.Unit = BarcodeUnit.ScanlinesPerPixels
                    barData.Location = New LeadRect(0, 0, 500, 250)
                    barData.Data = BarcodeData.ConvertFromStringArray(barcodeData)
                    barData.SearchType = BarcodeSearchTypeFlags.Barcode1dCode3Of9
                    Dim bar1d As Barcode1d = New Barcode1d()
                    bar1d.ErrorCheck = True
                    bar1d.OutShowText = True
                
                    Try
                      _barEngine.Write(_image, barData, barColor, BarcodeWriteFlags.None, bar1d, Nothing, Nothing, Nothing, LeadRect.Empty)
                
                      Dim fName As String = "C:\Users\Public\Documents\LEADTOOLS Images\barcode_modified.tif"
                      _codecs.Save(_image, fName, RasterImageFormat.CcittGroup4, 0)
                      MessageBox.Show(Me, String.Format("The barcode has been written and saved to {0}", fName))
                    Catch ex As Exception
                      MessageBox.Show(Me, ex.Message)
                    End Try
                 End Sub
                 
    

    C#

                 private void btnWriteBarCode_Click(object sender, EventArgs e)
                 {
                    string[] barcodeData = new string[1];
                    barcodeData[0] = "012345678901";
                    BarcodeColor barColor = new BarcodeColor();
                    BarcodeData barData = new BarcodeData();
                    barData.Unit = BarcodeUnit.ScanlinesPerPixels;
                    barData.Location = new LeadRect(0, 0, 500, 250);
                    barData.Data = BarcodeData.ConvertFromStringArray(barcodeData);
                    barData.SearchType = BarcodeSearchTypeFlags.Barcode1dCode3Of9;
                    Barcode1d bar1d = new Barcode1d();
                    bar1d.ErrorCheck = true;
                    bar1d.OutShowText = true;
                 
                    try
                    {
                       _barEngine.Write(_image,
                                        barData,
                                        barColor,
                                        BarcodeWriteFlags.None,
                                        bar1d,
                                        null,
                                        null,
                                        null,
                                        LeadRect.Empty);
                
                       string fName = @"C:\Users\Public\Documents\LEADTOOLS Images\barcode_modified.tif";
                       _codecs.Save(_image, fName, RasterImageFormat.CcittGroup4, 0);
                       MessageBox.Show(this, String.Format("The barcode has been written and saved to {0}", fName));
                    }
                    catch (Exception ex)
                    {
                       MessageBox.Show(this, ex.Message);
                    }
                 }
                 
    
  5. Build, and Run the program to test it. Click "Load Image" to load the image and "Write Barcode" to write a 1D barcode to the image and save it