LEADTOOLS OCR (Leadtools.Forms.Ocr assembly)
LEAD Technologies, Inc

SaveZonesAsync Method (IOcrDocument)






The Windows Runtime storage file object to save the zones data to.
Saves zones to a multi-page zones Windows Runtime StorageFile object. .NET support WinRT support
Syntax
IAsyncAction SaveZonesAsync( 
   IStorageFile file
)
'Declaration
 
Function SaveZonesAsync( _
   ByVal file As IStorageFile _
) As IAsyncAction
'Usage
 
Dim instance As IOcrDocument
Dim file As IStorageFile
Dim value As IAsyncAction
 
value = instance.SaveZonesAsync(file)
IAsyncAction SaveZonesAsync( 
   IStorageFile file
)
function Leadtools.Forms.Ocr.IOcrDocument.SaveZonesAsync( 
   file 
)
IAsyncAction^ SaveZonesAsync( 
   IStorageFile^ file
) 

Parameters

file
The Windows Runtime storage file object to save the zones data to.
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 IOcrPage.Zones property conatins 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.

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 IOcrPage.Zones property.

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 IOcrPage.Zones collection manually and then save the result with IOcrDocument.SaveZonesAsync(file). Once the zones are saved. You can now process all similar forms in the following manner:

Example

For an example, refer to LoadZonesAsync(file).

Requirements

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

See Also

Reference

IOcrDocument Interface
IOcrDocument Members
IOcrPage.LoadZonesAsync(file)
IOcrPage.LoadZonesAsync(file, pageNumber)
IOcrPage.SaveZonesAsync(file)
IOcrPage.SaveZonesAsync(file, pageNumber)
IOcrDocument.SaveZonesAsync(file)
IOcrPageCollection Interface
IOcrZoneCollection Interface
OcrZone Structure
IOcrPage.Recognize
Programming with the LEADTOOLS .NET OCR

 

 


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SaveZonesAsync requires an OCR module license and unlock key. For more information, refer to: Imaging Pro/Document/Medical Features