BarcodeData Constructor(BarcodeSymbology,String)

C#
Visual Basic
WinRT C#
Java
Objective-C
WinRT JavaScript
C++

public BarcodeData( 
   BarcodeSymbology symbology,
   string value
)

'Declaration

Public Function New( _
   ByVal symbology As BarcodeSymbology, _
   ByVal value As String _
)

'Usage

Dim symbology As BarcodeSymbology
Dim value As String
 
Dim instance As New BarcodeData(symbology, value)

public BarcodeData( 
   BarcodeSymbology symbology,
   string value
)

- (instancetype)initWithSymbology:(LTBarcodeSymbology)symbology 
                            value:(nullable NSString *)value

public BarcodeData(
  BarcodeSymbology symbology,
  String value
)

function BarcodeData( 
   symbology ,
   value 
)

public:
BarcodeData( 
   BarcodeSymbology symbology,
   String^ value
)

Parameters

symbology: Barcode symbology to use.
value: A String that specifies the ASCII text representation of the barcode data.

This constructor initializes the BarcodeData member as follows:

s

Member	Value
Symbology	symbology
Bounds	LogicalRectangle.Empty
RotationAngle	0
BarWidthReduction	0
Byte array inside GetData	The raw value of the bytes array in value. if this parameter is null, then the data is null too.
Value	value.
Tag	null (Nothing in Visual Basic)

To quickly construct a new BarcodeData object with a specific symbology and data as a raw byte array, use BarcodeData(BarcodeSymbology symbology, byte[] data) 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 with specified symbology and ASCII text. It then writes it to an image.

C#
Visual Basic
WinRT C#
WinRT JavaScript
Silverlight C#
Silverlight VB

Copy Code

Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.Forms
Imports Leadtools.Barcode
Imports Leadtools.ImageProcessing

      
Public Sub BarcodeData_FromStringExample()
   Dim outFileName As String = Path.Combine(LEAD_VARS.ImagesDir, "MyBarcode.tif")
   ' This is UPC data to save a a string
   Dim dataString As String = "01234567890"

   ' Create a BarcodeData object from this data
   Dim data As New BarcodeData(BarcodeSymbology.UPCA, dataString)
   data.Bounds = New LogicalRectangle(0, 0, 400, 200, LogicalUnit.Pixel)

   ' Make sure it is the same
   Debug.Assert(data.Value = dataString)

   ' 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.ToRectangle(resolution, resolution)
      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:\Users\Public\Documents\LEADTOOLS Images"
End Class

using Leadtools;
using Leadtools.Codecs;
using Leadtools.Forms;
using Leadtools.Barcode;
using Leadtools.ImageProcessing;

      
public void BarcodeData_FromStringExample()
{
   string outFileName = Path.Combine(LEAD_VARS.ImagesDir, @"MyBarcode.tif");
   // This is UPC data to save a a string
   string dataString = "01234567890";

   // Create a BarcodeData object from this data
   BarcodeData data = new BarcodeData(BarcodeSymbology.UPCA, dataString);
   data.Bounds = new LogicalRectangle(0, 0, 400, 200, LogicalUnit.Pixel);

   // Make sure it is the same
   Debug.Assert(data.Value == dataString);

   // Write it to an image
   BarcodeEngine engine = new BarcodeEngine();
   using(RasterCodecs codecs = new RasterCodecs())
   {
      int resolution = 300;
      LeadRect pixels = data.Bounds.ToRectangle(resolution, resolution);
      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:\Users\Public\Documents\LEADTOOLS Images";
}

using Leadtools;
using Leadtools.Codecs;
using Leadtools.Barcode;
using Leadtools.ImageProcessing;

      
public async Task BarcodeData_FromStringExample()
{
   string outFileName = @"MyBarcode.tif";
   // This is UPC data to save a a string
   string dataString = "01234567890";

   // Create a BarcodeData object from this data
   BarcodeData data = new BarcodeData(BarcodeSymbology.UPCA, dataString);
   data.Bounds = LeadRectHelper.Create(0, 0, 400, 200);

   // Make sure it is the same
   Debug.Assert(data.Value == dataString);

   // 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, RasterColorHelper.FromKnownColor(RasterKnownColor.White)))
      {
         engine.Writer.WriteBarcode(image, data, null);

         StorageFile saveFile = await Tools.AppLocalFolder.CreateFileAsync(outFileName);
         await codecs.SaveAsync(image, LeadStreamFactory.Create(saveFile), RasterImageFormat.Tif, 1);
      }
   }
}

using Leadtools;
using Leadtools.Codecs;
using Leadtools.Forms;
using Leadtools.Barcode;
using Leadtools.ImageProcessing;
using Leadtools.Examples;

public void BarcodeData_FromStringExample()
{
   // This is UPC data to save a a string
   string dataString = "01234567890";
   // Create a BarcodeData object from this data
   BarcodeData data = new BarcodeData(BarcodeSymbology.UPCA, dataString);
   data.Bounds = new LogicalRectangle(0, 0, 400, 200, LogicalUnit.Pixel);

   // Make sure it is the same
   Debug.Assert(data.Value == dataString);

   // Write it to an image
   BarcodeEngine engine = new BarcodeEngine();
   RasterCodecs codecs = new RasterCodecs();

   int resolution = 300;
   LeadRect pixels = data.Bounds.ToRectangle(resolution, resolution);
   using(RasterImage image = RasterImage.Create(pixels.Width, pixels.Height, 1, resolution, RasterColor.FromKnownColor(RasterKnownColor.White)))
   {
      engine.Writer.WriteBarcode(image, data, null);

      using (SampleImageStream outputStream = new SampleImageStream("MyBarcode.tif"))
      {
         codecs.Save(image, outputStream, RasterImageFormat.Tif, 1);
      }
   }
}

Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.Forms
Imports Leadtools.Barcode
Imports Leadtools.ImageProcessing

Public Sub BarcodeData_FromStringExample()
  ' This is UPC data to save a a string
  Dim dataString As String = "01234567890"
  ' Create a BarcodeData object from this data
  Dim data As BarcodeData = New BarcodeData(BarcodeSymbology.UPCA, dataString)
  data.Bounds = New LogicalRectangle(0, 0, 400, 200, LogicalUnit.Pixel)

  ' Make sure it is the same
  Debug.Assert(data.Value = dataString)

  ' Write it to an image
  Dim engine As BarcodeEngine = New BarcodeEngine()
  Dim codecs As RasterCodecs = New RasterCodecs()

  Dim resolution As Integer = 300
  Dim pixels As LeadRect = data.Bounds.ToRectangle(resolution, resolution)
  Using image As RasterImage = RasterImage.Create(pixels.Width, pixels.Height, 1, resolution, RasterColor.FromKnownColor(RasterKnownColor.White))
    engine.Writer.WriteBarcode(image, data, Nothing)

    Using outputStream As SampleImageStream = New SampleImageStream("MyBarcode.tif")
       codecs.Save(image, outputStream, RasterImageFormat.Tif, 1)
    End Using
  End Using
End Sub

Target Platforms

Reference

BarcodeData Class
BarcodeData Members
Overload List