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Length Property

Summary

Length of the Data Element.

Syntax
C#
VB
Objective-C
C++
Java
public int Length { get; } 
Public ReadOnly Property Length As Integer 
@property (nonatomic, assign, readonly) NSInteger length 
public int getLength(); 
public: 
property int Length { 
   int get(); 
} 

Property Value

Length of the Data Element (MRZ Value).

Example
C#
VB
using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.Forms.Common; 
using Leadtools.Ocr; 
using Leadtools.Forms.Commands; 
 
public void TestMRTDReader() 
{ 
   // Initialize the RasterCodecs class 
   RasterCodecs codecs = new RasterCodecs(); 
 
   // Initialize the BankCheckReader class 
   MRTDReader mrtdReader = new MRTDReader(); 
 
   // The bank cheque image 
   string chequePath = Path.Combine(LEAD_VARS.ImagesDir, "MRZ_SAMPLE.jpg"); 
   RasterImage image = codecs.Load(chequePath); 
 
   IOcrEngine ocrEngine = OcrEngineManager.CreateEngine(OcrEngineType.LEAD, false); 
   ocrEngine.Startup(codecs, null, null, LEAD_VARS.OcrLEADRuntimeDir); 
 
   // Assign Engine to Reader 
   mrtdReader.OcrEngine = ocrEngine; 
 
   // Process Image 
   mrtdReader.ProcessImage(image); 
 
   if (mrtdReader.Errors == MRTDErrors.NoError) 
   { 
      foreach (var value in mrtdReader.Results) 
      { 
         Console.WriteLine(string.Format("Data Element Field: {0}", value.Key.ToString())); 
         Console.WriteLine(string.Format("Data Element Value: {0}", value.Value.ReadableValue)); 
         Console.WriteLine(string.Format("Data Element Code : {0}", value.Value.MrzCharacters)); 
         Console.WriteLine(string.Format("Data Element Valid: {0}", value.Value.IsValid.ToString())); 
         Console.WriteLine("************************************"); 
      } 
   } 
 
   ocrEngine.Shutdown(); 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images"; 
   public const string OcrLEADRuntimeDir = @"C:\LEADTOOLS 20\Bin\Common\OcrLEADRuntime"; 
} 
Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.Forms.Common 
Imports Leadtools.Ocr 
Imports Leadtools.Forms.Commands 
 
Public Sub TestMRTDReader() 
   ' Initialize the RasterCodecs class 
   Dim codecs As New RasterCodecs() 
 
   ' Initialize the BankCheckReader class 
   Dim mrtdReader As New MRTDReader() 
 
   ' The bank check image 
   Dim chequePath As String = Path.Combine(LEAD_VARS.ImagesDir, "MRZ_SAMPLE.jpg") 
   Dim image As RasterImage = codecs.Load(chequePath) 
 
   Using ocrEngine As IOcrEngine = OcrEngineManager.CreateEngine(OcrEngineType.LEAD, False) 
      ocrEngine.Startup(Nothing, Nothing, Nothing, "C:\LEADTOOLS 20\Bin\Common\OcrLEADRuntime") 
      ' Assign Engine to Reader 
      mrtdReader.OcrEngine = ocrEngine 
 
 
 
      ' Process Image 
      mrtdReader.ProcessImage(image) 
 
      If mrtdReader.Errors = MRTDErrors.NoError Then 
         For Each value As KeyValuePair(Of MRTDField, MRTDDataElement) In mrtdReader.Results 
            Console.WriteLine(String.Format("Data Element Field: {0}", value.Key.ToString())) 
            Console.WriteLine(String.Format("Data Element Value: {0}", value.Value.ReadableValue)) 
            Console.WriteLine(String.Format("Data Element Code : {0}", value.Value.MrzCharacters)) 
            Console.WriteLine(String.Format("Data Element Valid: {0}", value.Value.IsValid.ToString())) 
            Console.WriteLine("************************************") 
         Next 
      End If 
   End Using 
End Sub 
 
Public NotInheritable Class LEAD_VARS 
   Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images" 
End Class 

Requirements

Target Platforms

Help Version 20.0.2020.3.31
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Leadtools.Forms.Commands Assembly