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InsertDib(Int32,IBuffer,OcrProgressCallback) Method

Summary

Inserts a DIB (Device-independent bitmap) stored in unmanaged memory to the specified location.

Syntax

WinRT C#

C++

Leadtools.Forms.Ocr.IOcrPage InsertDib(  
   int pageIndex, 
   IBuffer dib, 
   Leadtools.Forms.Ocr.OcrProgressCallback callback 
)

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

Leadtools.Forms.Ocr.IOcrPage InsertDib(  
   int pageIndex, 
   IBuffer dib, 
   Leadtools.Forms.Ocr.OcrProgressCallback callback 
)

function Leadtools.Forms.Ocr.IOcrPageCollection.InsertDib(Int32,IBuffer,OcrProgressCallback)(  
   pageIndex , 
   dib , 
   callback  
)

Leadtools.Forms.Ocr.IOcrPage^ InsertDib(  
   int pageIndex, 
   IBuffer^ dib, 
   Leadtools.Forms.Ocr.OcrProgressCallback^ callback 
)

Parameters

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

dib
An unmanaged pointer to the DIB (device-independent bitmap).

callback
Optional callback to show operation progress.

Return Value

The IOcrPage object that define the newly inserted page.

Remarks

This method will insert a device independent bitmap (DIB) stored in an unmanaged memory pointer to the OCR document.

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