BarcodeData Constructor()

Summary

Initializes a new instance of the BarcodeData class with default values.

Syntax

Objective-C

C++/CLI

Java

Python

public BarcodeData()

- (instancetype)init

public BarcodeData()

public: 
BarcodeData();

__init__() # Default constructor

Remarks

This constructor initializes the BarcodeData member as follows:

Member	Value
Symbology	BarcodeSymbology.Unknown
Bounds	LeadRect.Empty
RotationAngle	0
BarWidthReduction	0
Byte array inside GetData	null (Nothing in Visual Basic)
Value	null (Nothing in Visual Basic)
Tag	null (Nothing in Visual Basic)

To quickly construct a new BarcodeData object with a specific symbology and data, use BarcodeData(BarcodeSymbology symbology, byte[] data) or BarcodeData(BarcodeSymbology symbology, string value).

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

Example

Java

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.Barcode; 
using Leadtools.ImageProcessing; 
 
 
public void BarcodeData_Example() 
{ 
   string imageFileName = Path.Combine(LEAD_VARS.ImagesDir, "Barcode1.tif"); 
 
   // Create a Barcode engine 
   BarcodeEngine engine = new BarcodeEngine(); 
 
   // Load the image 
   using (RasterCodecs codecs = new RasterCodecs()) 
   { 
      using (RasterImage image = codecs.Load(imageFileName, 0, CodecsLoadByteOrder.BgrOrGray, 1, 1)) 
      { 
         // Read the first barcode 
         BarcodeData data = engine.Reader.ReadBarcode(image, LeadRect.Empty, BarcodeSymbology.Unknown); 
 
         // Show the barcode data found (if any) 
         if (data != null) 
         { 
            Console.WriteLine("Found barcode at {0}", data.Bounds); 
            Console.WriteLine("Symbology: {0}", data.Symbology); 
            Console.WriteLine("Data: {0}", data.Value); 
         } 
      } 
   } 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS23\Resources\Images"; 
}

 
import java.io.File; 
import java.io.IOException; 
import java.nio.charset.StandardCharsets; 
 
import org.junit.*; 
import org.junit.runner.JUnitCore; 
import org.junit.runner.Result; 
import org.junit.runner.notification.Failure; 
import static org.junit.Assert.*; 
 
import leadtools.*; 
import leadtools.barcode.*; 
import leadtools.codecs.*; 
 
 
public void barcodeDataExample() { 
   final String LEAD_VARS_IMAGES_DIR = "C:\\LEADTOOLS23\\Resources\\Images"; 
   String imageFileName = combine(LEAD_VARS_IMAGES_DIR, "barcode1.tif"); 
 
   // Create a Barcode engine 
   BarcodeEngine engine = new BarcodeEngine(); 
 
   // Load the image 
   RasterCodecs codecs = new RasterCodecs(); 
       
   RasterImage image = codecs.load(imageFileName, 0, CodecsLoadByteOrder.BGR_OR_GRAY, 1, 1); 
             
   // Read the first barcode 
   BarcodeData data = engine.getReader().readBarcode(image, LeadRect.getEmpty(), BarcodeSymbology.UNKNOWN); 
 
   // Show the barcode data found (if any) 
   if (data != null) 
   { 
      System.out.printf("Found barcode at %s%n", data.getBounds()); 
      System.out.printf("Symbology: %s%n", data.getSymbology().getValue()); 
      System.out.printf("Data: %s%n", data.getValue()); 
   }      
          
   codecs.dispose(); 
   image.dispose(); 
   assertTrue("File does not exist", new File(imageFileName).exists()); 
   System.out.println("Command run and file exported to: " + imageFileName); 
}

Requirements

Target Platforms

Reference

BarcodeData Class

BarcodeData Members

Overload List

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Help Version 23.0.2024.2.29

Leadtools.Barcode Assembly

Introduction

Getting Started

Namespaces

Leadtools.Barcode Namespace

Assemblies