IOcrZoneManager Interface

C#
Visual Basic
WinRT C#
Objective-C
Java
WinRT JavaScript
C++

public interface IOcrZoneManager

'Declaration
 
Public Interface IOcrZoneManager

'Usage
 
Dim instance As IOcrZoneManager

public interface IOcrZoneManager

@interface LTOcrZoneManager : NSObject

public class OcrZoneManager

function Leadtools.Forms.Ocr.IOcrZoneManager()

public interface 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), recognition module (OcrZone.RecognitionModule) and fill method (OcrZone.FillMethod) 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. You do this by using the instance of IOcrZoneManager of the engine through the IOcrEngine.ZoneManager property as follows:

To change the zone type, use IsZoneTypeSupported first.
To change the recognition module, use IsRecognitionModuleSupported first.
To change the fill method, use IsFillMethodSupported first.

To get all the supported zone types, recognition modules or fill methods use GetSupportedZoneTypes, GetSupportedRecognitionModules and GetSupportedFillMethods respectively.

C#
Visual Basic
WinRT C#
WinRT JavaScript
Silverlight C#
Silverlight VB

Copy Code

Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.Forms.Ocr
Imports Leadtools.Forms
Imports Leadtools.Forms.DocumentWriters
Imports Leadtools.WinForms
Imports Leadtools.ImageProcessing.Core

Public Sub ZoneManagerExample()
   ' Create an instance of the engine
   Using ocrEngine As IOcrEngine = OcrEngineManager.CreateEngine(OcrEngineType.Advantage, False)
      ' Start the engine using default parameters
      ocrEngine.Startup(Nothing, Nothing, Nothing, LEAD_VARS.OcrAdvantageRuntimeDir)
      ' Get the zone manager
      Dim ocrZoneManager As IOcrZoneManager = ocrEngine.ZoneManager

      ' Show all the zone types supported by this engine
      Console.WriteLine("Hit enter to show the supported zone types")
      Console.ReadLine()

      Dim zoneTypes() As OcrZoneType = ocrZoneManager.GetSupportedZoneTypes()
      Console.WriteLine("Supported zone types:")
      Console.WriteLine("---------------------")
      For Each zoneType As OcrZoneType In zoneTypes
         Console.WriteLine("  {0}", zoneType)
      Next

      Console.WriteLine("Hit enter to show the supported recognition modules")
      Console.ReadLine()

      Dim recognitionModules() As OcrZoneRecognitionModule = ocrZoneManager.GetSupportedRecognitionModules()
      Console.WriteLine("Supported recognition modules:")
      Console.WriteLine("---------------------")
      For Each recognitionModule As OcrZoneRecognitionModule In recognitionModules
         Console.WriteLine("  {0}", recognitionModule)
      Next

      Console.WriteLine("Hit enter to show the supported fill methods")
      Console.ReadLine()

      Dim fillMethods() As OcrZoneFillMethod = ocrZoneManager.GetSupportedFillMethods()
      Console.WriteLine("Supported fillMethods:")
      Console.WriteLine("---------------------")
      For Each fillMethod As OcrZoneFillMethod In fillMethods
         Console.WriteLine("  {0}", fillMethod)
      Next

      ' Shutdown the engine
      ' Note: calling Dispose will also automatically shutdown the engine if it has been started
      ocrEngine.Shutdown()
   End Using
End Sub

using Leadtools;
using Leadtools.Codecs;
using Leadtools.Forms.Ocr;
using Leadtools.Forms;
using Leadtools.Forms.DocumentWriters;
using Leadtools.WinForms;

public void ZoneManagerExample()
{
   // Create an instance of the engine
   using (IOcrEngine ocrEngine = OcrEngineManager.CreateEngine(OcrEngineType.Advantage, false))
   {
      // Start the engine using default parameters
      ocrEngine.Startup(null, null, null, LEAD_VARS.OcrAdvantageRuntimeDir);
      // 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");
      Console.ReadLine();

      OcrZoneType[] zoneTypes = ocrZoneManager.GetSupportedZoneTypes();
      Console.WriteLine("Supported zone types:");
      Console.WriteLine("---------------------");
      foreach (OcrZoneType zoneType in zoneTypes)
         Console.WriteLine("  {0}", zoneType);

      Console.WriteLine("Hit enter to show the supported recognition modules");
      Console.ReadLine();

      OcrZoneRecognitionModule[] recognitionModules = ocrZoneManager.GetSupportedRecognitionModules();
      Console.WriteLine("Supported recognition modules:");
      Console.WriteLine("---------------------");
      foreach (OcrZoneRecognitionModule recognitionModule in recognitionModules)
         Console.WriteLine("  {0}", recognitionModule);

      Console.WriteLine("Hit enter to show the supported fill methods");
      Console.ReadLine();

      OcrZoneFillMethod[] fillMethods = ocrZoneManager.GetSupportedFillMethods();
      Console.WriteLine("Supported fillMethods:");
      Console.WriteLine("---------------------");
      foreach (OcrZoneFillMethod fillMethod in fillMethods)
         Console.WriteLine("  {0}", fillMethod);

      // Shutdown the engine
      // Note: calling Dispose will also automatically shutdown the engine if it has been started
      ocrEngine.Shutdown();
   }
}

using Leadtools;
using Leadtools.Codecs;
using Leadtools.Forms.Ocr;
using Leadtools.Forms;
using Leadtools.Forms.DocumentWriters;

[TestMethod]
public void ZoneManagerExample()
{
   // Create an instance of the engine
   IOcrEngine ocrEngine = OcrEngineManager.CreateEngine(OcrEngineType.Advantage, false);
   // Start the engine using default parameters
   ocrEngine.Startup(null, null, String.Empty, Tools.OcrEnginePath);

   // Get the zone manager
   IOcrZoneManager ocrZoneManager = ocrEngine.ZoneManager;

   OcrZoneType[] zoneTypes = ocrZoneManager.GetSupportedZoneTypes();
   Debug.WriteLine("Supported zone types:");
   Debug.WriteLine("---------------------");
   foreach(OcrZoneType zoneType in zoneTypes)
      Debug.WriteLine("  {0}", zoneType);

   OcrZoneRecognitionModule[] recognitionModules = ocrZoneManager.GetSupportedRecognitionModules();
   Debug.WriteLine("Supported recognition modules:");
   Debug.WriteLine("---------------------");
   foreach(OcrZoneRecognitionModule recognitionModule in recognitionModules)
      Debug.WriteLine("  {0}", recognitionModule);

   OcrZoneFillMethod[] fillMethods = ocrZoneManager.GetSupportedFillMethods();
   Debug.WriteLine("Supported fillMethods:");
   Debug.WriteLine("---------------------");
   foreach(OcrZoneFillMethod fillMethod in fillMethods)
      Debug.WriteLine("  {0}", fillMethod);

   // Shutdown the engine
   ocrEngine.Shutdown();
}

Target Platforms

Reference

IOcrZoneManager Members
Leadtools.Forms.Ocr Namespace
IOcrPage.AutoZone
OcrZoneType Enumeration
OcrZoneRecognitionModule Enumeration
OcrZoneFillMethod Enumeration
OcrEngineManager Class
OcrEngineType Enumeration
IOcrPageCollection Interface
IOcrZoneCollection Interface
OcrZone Structure
Programming with LEADTOOLS .NET OCR
Working with OCR Zones