InsertDib Method

Summary

Inserts a DIB (Device-independent bitmap) stored in a Windows Runtime IBuffer object to the specified location.

Syntax

C++

public IOcrPage InsertDib( 
   int pageIndex, 
   IntPtr dib, 
   OcrProgressCallback callback 
)

Overloads Function InsertDib( _ 
   ByVal pageIndex As Integer, _ 
   ByVal dib As IntPtr, _ 
   ByVal callback As OcrProgressCallback _ 
) As IOcrPage

IOcrPage^ InsertDib(  
   int pageIndex, 
   IntPtr dib, 
   OcrProgressCallback^ callback 
)

Parameters

pageIndex
The zero-based index at which dib should be inserted.

dib
A DIB (device-independent bitmap) stored in a Windows Runtime IBuffer object.

callback
Optional callback to show operation progress.

Return Value

The IOcrPage object that defines the newly inserted page.

Remarks

This method will insert a device independent bitmap (DIB) stored in a Windows Runtime IBuffer object.

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 LEADTOOLS OCR Module - LEAD 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.

Example

For an example on how to insert a page, refer to InsertPage. For an example on how to add pages from a DIB, refer to AddDib

Requirements

Target Platforms

Reference

IOcrPageCollection Interface

IOcrPageCollection Members

OcrEngineManager Class

OcrEngineType Enumeration

IOcrPage Interface

Programming with the LEADTOOLS .NET OCR

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Help Version 21.0.2021.7.2