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IOcrZoneManager Interface

Support for determining the various zone types, recognition modules and fill methods supported by the OCR engine.
public interface IOcrZoneManager 
@interface LTOcrZoneManager : NSObject 
public class OcrZoneManager 
public interface class IOcrZoneManager  
class IOcrZoneManager: 

You can access the instance of the IOcrZoneManager used by an IOcrEngine through the IOcrEngine.ZoneManager property.

When calling the IOcrPage.AutoZone method on a page, the generated zone's type (OcrZone.ZoneType) will always be one of the supported values as reported by the IOcrZoneManager.

Before manually changing any of the above zone properties, you must determine whether the particular value is supported by this instance of IOcrEngine by using IsZoneTypeSupported first.

To get all the supported zone types use GetSupportedZoneTypes.


This example will show the different zone types supported by the LEADTOOLS OCR Module - LEAD Engine.

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.Ocr; 
using Leadtools.Forms.Common; 
using Leadtools.Document.Writer; 
using Leadtools.WinForms; 
public void ZoneManagerExample() 
   // Create an instance of the engine 
   using (IOcrEngine ocrEngine = OcrEngineManager.CreateEngine(OcrEngineType.LEAD)) 
      // Start the engine using default parameters 
      ocrEngine.Startup(null, null, null, LEAD_VARS.OcrLEADRuntimeDir); 
      // Get the zone manager 
      IOcrZoneManager ocrZoneManager = ocrEngine.ZoneManager; 
      // Show all the zone types supported by this engine 
      Console.WriteLine("Hit enter to show the supported zone types"); 
      OcrZoneType[] zoneTypes = ocrZoneManager.GetSupportedZoneTypes(); 
      Console.WriteLine("Supported zone types:"); 
      foreach (OcrZoneType zoneType in zoneTypes) 
         Console.WriteLine("  {0}", zoneType); 
      // Shutdown the engine 
      // Note: calling Dispose will also automatically shutdown the engine if it has been started 
static class LEAD_VARS 
   public const string OcrLEADRuntimeDir = @"C:\LEADTOOLS22\Bin\Common\OcrLEADRuntime"; 

Target Platforms

Help Version 22.0.2023.3.31
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Leadtools.Ocr Assembly

Products | Support | Contact Us | Intellectual Property Notices
© 1991-2023 LEAD Technologies, Inc. All Rights Reserved.