InsertDib(Int32,IBuffer,OcrProgressCallback) Method

IOcrPage InsertDib( 
   int pageIndex,
   IBuffer dib,
   OcrProgressCallback callback
)

'Declaration
 
Overloads Function InsertDib( _
   ByVal pageIndex As Integer, _
   ByVal dib As IBuffer, _
   ByVal callback As OcrProgressCallback _
) As IOcrPage

'Usage
 
Dim instance As IOcrPageCollection
Dim pageIndex As Integer
Dim dib As IBuffer
Dim callback As OcrProgressCallback
Dim value As IOcrPage
 
value = instance.InsertDib(pageIndex, dib, callback)

IOcrPage InsertDib( 
   int pageIndex,
   IBuffer dib,
   OcrProgressCallback callback
)

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

IOcrPage^ InsertDib( 
   int pageIndex,
   IBuffer^ dib,
   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

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 LEADTOOLS Plus OCR engine does not support image size greater than A3 paper size (11.7 by 16.5 inches at 300 dpi). Attempting to add an image that has a size greater than A3 will result in an error. For document of size greater than the maximum allowed, you must first resize the image before adding it to the LEADTOOLS Plus OCR engine. The Professional and Advantage engines do not have a restriction on the image size.

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.

Target Platforms

Reference

IOcrPageCollection Interface
IOcrPageCollection Members
Overload List
OcrEngineManager Class
OcrEngineType Enumeration
IOcrPage Interface
Programming with the LEADTOOLS .NET OCR