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LoadZones(string,int) Method

Summary

Loads zones from a multi-page zones disk file.

Syntax

C#
VB
Java
Objective-C
C++
public void LoadZones( 
   string fileName, 
   int pageNumber 
) 
Overloads Sub LoadZones( _ 
   ByVal fileName As String, _ 
   ByVal pageNumber As Integer _ 
)  
- (void)loadZonesFromFile:(NSString *)fileName  
               pageNumber:(NSUInteger)pageNumber  
                    error:(NSError **)error 
             
public void loadZones( 
   String fileName,  
   int pageNumber 
) 
             
void LoadZones(  
   String^ fileName, 
   int pageNumber 
)  

Parameters

fileName
The name of the file containing the zones to load.

pageNumber
1-based page number.

Remarks

To save and load the zones of OCR pages, you can use one of these methods:

Note on loading zones from a multi-page zone file: If the file does not contain zones data with the correct page number, the engine will not load any zones for this page. After the method returns, any OCR page that did not have zones data will contain zero zones. (the Zones property contains 0 items). You can then use IOcrPage.AutoZone if required to re-zone this page.

Use this method to load the zones previously saved into a multi-page zones disk file with the IOcrDocument.SaveZones(filename) method. This method will load the zones associated with pageNumber found in the file name. If the file does not contain any zones associated with this page, then no zones are loaded and the Zones property will contain 0 items.

The zones of this page will first be cleared prior to loading the new items.

After this method finishes, you can access the loaded zones in the Zones property.

To load and save the zones to a .NET stream, use IOcrDocument.SaveZones(stream), IOcrDocument.LoadZones(stream) and IOcrPage.LoadZones(stream, pageNumber).

Saving zones to an external file or a stream could be useful when you are processing forms. For example, you can load one of the forms and automatically find the zones inside it using AutoZone, if the automatic zone detection was not 100 percent satisfactory, you can update the zones in the Zones collection manually and then save the result with IOcrDocument.SaveZones(filename). Once the zones are saved. You can now process all similar forms in the following manner:

Example

For an example, refer to IOcrDocument.SaveZones(filename).

Requirements

Target Platforms

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