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ImagePageNumber Property

Summary
Gets the page number in the input (image) file name for the current operation
Syntax
C#
Objective-C
C++/CLI
Java
Python
public int ImagePageNumber { get; } 
@property (nonatomic, assign, readonly) NSInteger imagePageNumber; 
public int getImagePageNumber() 
public: 
property int ImagePageNumber { 
   int get(); 
} 
ImagePageNumber # get  (OcrAutoRecognizeJobOperationEventArgs) 

Property Value

The 1-based page number in the input (image) file name for the current operation. Or 0 if no page is being used.

Remarks

This member is not valid and will be 0 when the current operation is CreateDocument, PrepareDocument, SaveDocument or ConvertDocument.

Example
C#
Java
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:\LEADTOOLS23\Resources\Images"; 
   public const string OcrLEADRuntimeDir = @"C:\LEADTOOLS23\Bin\Common\OcrLEADRuntime"; 
} 
 
import java.io.File; 
import java.io.FileNotFoundException; 
import java.io.FileWriter; 
import java.io.FilenameFilter; 
import java.io.IOException; 
import java.nio.file.Files; 
import java.nio.file.Path; 
import java.nio.file.Paths; 
import java.util.ArrayList; 
import java.util.concurrent.ExecutorService; 
import java.util.concurrent.Executors; 
import java.util.concurrent.atomic.AtomicInteger; 
 
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.document.writer.*; 
import leadtools.internal.AutoResetEvent; 
import leadtools.ocr.*; 
 
 
public void OcrAutoRecognizeManagerJobOperationExample() { 
   String LEAD_VARS_ImagesDir = "C:\\LEADTOOLS23\\Resources\\Images"; 
   String LEAD_VARS_OcrLEADRuntimeDir = "C:\\LEADTOOLS23\\Bin\\Common\\OcrLEADRuntime"; 
   String imageFileName = combine(LEAD_VARS_ImagesDir, "Ocr1.tif"); 
   String documentFileName = combine(LEAD_VARS_ImagesDir, "JobOperation.pdf"); 
 
   OcrEngine ocrEngine = OcrEngineManager.createEngine(OcrEngineType.LEAD); 
   ocrEngine.startup(null, null, null, LEAD_VARS_OcrLEADRuntimeDir); 
 
   OcrAutoRecognizeManager autoRecognizeManager = ocrEngine.getAutoRecognizeManager(); 
   autoRecognizeManager.addJobOperationListener(autoRecognizeManager_JobOperation); 
 
   OcrAutoRecognizeJob job = autoRecognizeManager 
         .createJob(new OcrAutoRecognizeJobData(imageFileName, DocumentFormat.PDF, documentFileName)); 
   autoRecognizeManager.runJob(job); 
 
   autoRecognizeManager.removeJobOperationListener(autoRecognizeManager_JobOperation); 
   ocrEngine.dispose(); 
} 
 
OcrAutoRecognizeJobOperationListener autoRecognizeManager_JobOperation=new OcrAutoRecognizeJobOperationListener(){ 
 
   @Override public void onOperation(OcrAutoRecognizeJobOperationEvent 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.isPostOperation()&&e.getImagePageNumber()==1) { 
         OcrZone ocrZone=new OcrZone(); 
         ocrZone.setZoneType(OcrZoneType.GRAPHIC); 
         ocrZone.setBounds(new LeadRect(0,0,e.getPage().getWidth(),e.getPage().getHeight()));e.getPage().getZones().add(ocrZone); 
      } 
   } 
 
}; 
Requirements

Target Platforms

Help Version 23.0.2024.4.19
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© 1991-2024 LEAD Technologies, Inc. All Rights Reserved.

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