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AddDib(IBuffer,OcrProgressCallback) Method

Summary

Adds a page from a DIB (Device-independent bitmap) stored in a Windows Runtime IBuffer object.

Syntax

WinRT C#

C++

Leadtools.Forms.Ocr.IOcrPage AddDib(  
   IBuffer dib, 
   Leadtools.Forms.Ocr.OcrProgressCallback callback 
)

Overloads Function AddDib( _ 
   ByVal dib As IBuffer, _ 
   ByVal callback As Leadtools.Forms.Ocr.OcrProgressCallback _ 
) As Leadtools.Forms.Ocr.IOcrPage

Leadtools.Forms.Ocr.IOcrPage AddDib(  
   IBuffer dib, 
   Leadtools.Forms.Ocr.OcrProgressCallback callback 
)

function Leadtools.Forms.Ocr.IOcrPageCollection.AddDib(IBuffer,OcrProgressCallback)(  
   dib , 
   callback  
)

Leadtools.Forms.Ocr.IOcrPage^ AddDib(  
   IBuffer^ dib, 
   Leadtools.Forms.Ocr.OcrProgressCallback^ callback 
)

Parameters

dib
A Windows Runtime IBuffer containing the DIB (device-independent bitmap).

callback
Optional callback to show operation progress.

Return Value

The IOcrPage object that define the newly added page.

Remarks

This method will add a device independent bitmap (DIB) stored in Windows Runtime IBuffer to the OCR document.

This method will add the page to the end of the collection if you already have pages in this IOcrPageCollection.

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

The LEADTOOLS OCR engine supports pages of dots per inch (DPI) values of 150 and greater. If you try to add a page with a DPI of less than 150 then the engine might be able to recognize any data from this page.

Note: The value of the "Recognition.ShareOriginalImage" (only supported by the Advantage OCR engine) setting is not used when calling this method. The engine loads the image(s) and sets them in the pages internally. The original image reference can be obtained from the page using IOcrPage.GetRasterImage(ocrpagetype.original). Sharing the original image minimizes the memory used during OCR operations.

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.

Requirements

Target Platforms

Reference

IOcrPageCollection Interface

IOcrPageCollection Members

Overload List

OcrEngineManager Class

OcrEngineType Enumeration

IOcrPage Interface

Programming with the LEADTOOLS .NET OCR

Help Version 19.0.2017.10.27