BarcodeData Constructor(BarcodeSymbology,string)

Summary

Initializes a new instance of the BarcodeData class with specified symbology and ASCII text value.

Syntax

Objective-C

C++/CLI

Java

Python

public BarcodeData( 
   BarcodeSymbology symbology, 
   string value 
)

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

public BarcodeData( 
  BarcodeSymbology symbology, 
  String value 
)

public: 
BarcodeData(  
   BarcodeSymbology symbology, 
   String^ value 
)

__init__(self,symbology,value) # Overloaded constructor

Parameters

symbology
Barcode symbology to use.

value
A String that specifies the ASCII text representation of the barcode data.

Remarks

This constructor initializes the BarcodeData member as follows:

Member	Value
Symbology	symbology
Bounds	LeadRect.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.

Example

This example creates a BarcodeData with specified symbology and ASCII text. It then writes it to an image.

using Leadtools; 
using Leadtools.Codecs; 
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 LeadRect(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, 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:\LEADTOOLS22\Resources\Images"; 
}

Requirements

Target Platforms

Reference

BarcodeData Class

BarcodeData Members

Overload List

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Help Version 22.0.2023.5.9