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PostOperation Property

Summary
Gets a value that indicates whether the engine has already run the operation.
Syntax
C#
C++/CLI
Java
Python
public bool PostOperation { get; } 
public boolean isPostOperation() 
public: 
property bool PostOperation { 
   bool get(); 
} 

Property Value

true if the engine has already run the operation or false if the engine is preparing to run the operation.

Remarks

This is useful if you want to manipulate operation data as shown in the example.

Example
C#
using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.Ocr; 
using Leadtools.Document.Writer; 
using Leadtools.Forms.Common; 
using Leadtools.WinForms; 
 
public void JobOperationExample() 
{ 
   string imageFileName = Path.Combine(LEAD_VARS.ImagesDir, "Ocr1.tif"); 
   string documentFileName = Path.Combine(LEAD_VARS.ImagesDir, "JobOperation.pdf"); 
 
   using (IOcrEngine ocrEngine = OcrEngineManager.CreateEngine(OcrEngineType.LEAD)) 
   { 
      ocrEngine.Startup(null, null, null, LEAD_VARS.OcrLEADRuntimeDir); 
 
      IOcrAutoRecognizeManager autoRecognizeManager = ocrEngine.AutoRecognizeManager; 
      autoRecognizeManager.JobOperation += new EventHandler<OcrAutoRecognizeJobOperationEventArgs>(autoRecognizeManager_JobOperation); 
 
      IOcrAutoRecognizeJob job = autoRecognizeManager.CreateJob(new OcrAutoRecognizeJobData(imageFileName, DocumentFormat.Pdf, documentFileName)); 
      autoRecognizeManager.RunJob(job); 
 
      autoRecognizeManager.JobOperation -= new EventHandler<OcrAutoRecognizeJobOperationEventArgs>(autoRecognizeManager_JobOperation); 
   } 
} 
 
private static void autoRecognizeManager_JobOperation(object sender, OcrAutoRecognizeJobOperationEventArgs e) 
{ 
   // We did not pass a zone to the job, so the engine will attempt to do AutoZone unless we 
   // add any zone to the input document. 
   // We can also check for e.PostOperation equals to true and manipulate the zones 
   // found the engine at this point 
 
   // Add a graphics zone. 
   // If you comment out this code, the result PDF will contain text, but since we will be adding a zone here, 
   // the engine will not auto-zone the document for us. Also, since the zone we are adding is 
   // graphics that takes up the whole page, the result PDF will contain a raster image and no text. 
   if (!e.PostOperation && e.ImagePageNumber == 1) 
   { 
      OcrZone ocrZone = new OcrZone(); 
      ocrZone.ZoneType = OcrZoneType.Graphic; 
      ocrZone.Bounds = new LeadRect(0, 0, e.Page.Width, e.Page.Height); 
      e.Page.Zones.Add(ocrZone); 
   } 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS22\Resources\Images"; 
   public const string OcrLEADRuntimeDir = @"C:\LEADTOOLS22\Bin\Common\OcrLEADRuntime"; 
} 
Requirements

Target Platforms

Help Version 22.0.2023.3.31
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Leadtools.Ocr Assembly

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© 1991-2023 LEAD Technologies, Inc. All Rights Reserved.