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BarcodeData Constructor(BarcodeSymbology,byte[])

Initializes a new instance of the BarcodeData class with specified symbology and data.
Public Function New( _ 
   ByVal symbology As BarcodeSymbology, _ 
   ByVal data() As Byte _ 
- (instancetype)initWithSymbology:(LTBarcodeSymbology)symbology  
                             data:(nullable NSData *)data 
public BarcodeData( 
  BarcodeSymbology symbology, 
  byte[] data 
   BarcodeSymbology symbology, 
   array<byte>^ data 


Barcode symbology to use.

An array of Byte that specifies the data to use. This value can be null (Nothing in VB).


This constructor initializes the BarcodeData member as follows:

Member Value
Symbology symbology
Bounds LeadRect.Empty
RotationAngle 0
BarWidthReduction 0
Byte array inside GetData data (same reference, the data is not copied)
Value ASCII text string representation of data, if this parameter is null, then Value is null too.
Tag null (Nothing in Visual Basic)

To quickly construct a new BarcodeData object with a specific symbology and data as a string value, use BarcodeData(BarcodeSymbology symbology, string value) to construct a default BarcodeData, use BarcodeData().

To create an instance of BarcodeData suitable for writing for a specified symbology, use CreateDefaultBarcodeData.


This example creates a BarcodeData using specified symbology and raw data. Then it writes it to an image.

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.Barcode; 
using Leadtools.ImageProcessing; 
public void BarcodeData_FromByteArrayExample() 
   string outFileName = Path.Combine(LEAD_VARS.ImagesDir, @"MyBarcode.tif"); 
   // This is UPC data to save a a string 
   string originalString = "01234567890"; 
   // We will get it as a byte array to use in the rest of this example 
   byte[] bytes = Encoding.ASCII.GetBytes(originalString); 
   // Create a BarcodeData object from this data 
   BarcodeData data = new BarcodeData(BarcodeSymbology.UPCA, bytes); 
   data.Bounds = new LeadRect(0, 0, 400, 200); 
   // Make sure it is the same 
   Debug.Assert(data.Value == originalString); 
   // Write it to an image 
   BarcodeEngine engine = new BarcodeEngine(); 
   using (RasterCodecs codecs = new RasterCodecs()) 
      int resolution = 300; 
      LeadRect pixels = data.Bounds; 
      using (RasterImage image = RasterImage.Create(pixels.Width, pixels.Height, 1, resolution, RasterColor.FromKnownColor(RasterKnownColor.White))) 
         engine.Writer.WriteBarcode(image, data, null); 
         codecs.Save(image, outFileName, RasterImageFormat.Tif, 1); 
static class LEAD_VARS 
   public const string ImagesDir = @"C:\LEADTOOLS21\Resources\Images"; 
Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.Barcode 
Imports Leadtools.ImageProcessing 
Public Sub BarcodeData_FromByteArrayExample() 
   Dim outFileName As String = Path.Combine(LEAD_VARS.ImagesDir, "MyBarcode.tif") 
   ' This is UPC data to save a a string 
   Dim originalString As String = "01234567890" 
   ' We will get it as a byte array to use in the rest of this example 
   Dim bytes() As Byte = Encoding.ASCII.GetBytes(originalString) 
   ' Create a BarcodeData object from this data 
   Dim data As New BarcodeData(BarcodeSymbology.UPCA, bytes) 
   data.Bounds = New LeadRect(0, 0, 400, 200) 
   ' Make sure it is the same 
   Debug.Assert(data.Value = originalString) 
   ' Write it to an image 
   Dim engine As New BarcodeEngine() 
   Using codecs As New RasterCodecs() 
      Dim resolution As Integer = 300 
      Dim pixels As LeadRect = data.Bounds 
      Using image As RasterImage = RasterImage.Create(pixels.Width, pixels.Height, 1, resolution, RasterColor.FromKnownColor(RasterKnownColor.White)) 
         engine.Writer.WriteBarcode(image, data, Nothing) 
         codecs.Save(image, outFileName, RasterImageFormat.Tif, 1) 
      End Using 
   End Using 
End Sub 
Public NotInheritable Class LEAD_VARS 
   Public Const ImagesDir As String = "C:\LEADTOOLS21\Resources\Images" 
End Class 

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