Recognize(Int32,Int32,OcrProgressCallback) Method

void Recognize( 
   int firstPageIndex,
   int lastPageIndex,
   OcrProgressCallback callback
)

'Declaration
 

Overloads Sub Recognize( _
   ByVal firstPageIndex As Integer, _
   ByVal lastPageIndex As Integer, _
   ByVal callback As OcrProgressCallback _
) 

'Usage
 

Dim instance As IOcrPageCollection
Dim firstPageIndex As Integer
Dim lastPageIndex As Integer
Dim callback As OcrProgressCallback
 
instance.Recognize(firstPageIndex, lastPageIndex, callback)

void Recognize( 
   int firstPageIndex,
   int lastPageIndex,
   OcrProgressCallback callback
)

- (BOOL)recognizePagesInRange:(NSRange)range
                     progress:(nullable LTOcrProgressHandler)progressHandler
                        error:(NSError **)error
            

public void recognize(int firstPageIndex,
                      int lastPageIndex,
                      OcrProgressListener callback)
            

function Leadtools.Forms.Ocr.IOcrPageCollection.Recognize(Int32,Int32,OcrProgressCallback)( 
   firstPageIndex ,
   lastPageIndex ,
   callback 
)

void Recognize( 
   int firstPageIndex,
   int lastPageIndex,
   OcrProgressCallback^ callback
) 

Parameters

firstPageIndex

The zero-based index of the first page to recognize.

lastPageIndex

The zero-based index of the last page to recognize. A value of -1 means recognize up to and including the last page in the OCR document.

callback

Optional callback to show operation progress.

For more information on recognition of OCR data a page, refer to IOcrPage.Recognize.

This method will iterate through all the pages between firstPageIndex and lastPageIndex in the OCR document and run IOcrPage.Recognize on each page.

To recognize all the pages in the OCR document use Recognize(OcrProgressCallback callback).

You can use the OcrProgressCallback to show the operation progress or to abort it. For more information and an example, refer to OcrProgressCallback.

This member only works with memory-based documents and will throw an exception otherwise. For more information, refer to IOcrDocumentManager.CreateDocument and Programming with the LEADTOOLS .NET OCR.

Target Platforms

Reference

IOcrPageCollection Interface
IOcrPageCollection Members
Overload List
IOcrPage.Recognize
AutoZone
Programming with the LEADTOOLS .NET OCR