Overloads Sub AddPages( _
   ByVal image As RasterImage, _
   ByVal imageFirstPageNumber As Integer, _
   ByVal imageLastPageNumber As Integer, _
   ByVal callback As OcrProgressCallback _
) 

Visual Basic (Usage)	Copy Code
Dim instance As IOcrPageCollection Dim image As RasterImage Dim imageFirstPageNumber As Integer Dim imageLastPageNumber As Integer Dim callback As OcrProgressCallback   instance.AddPages(image, imageFirstPageNumber, imageLastPageNumber, callback)

void AddPages( 
   RasterImage image,
   int imageFirstPageNumber,
   int imageLastPageNumber,
   OcrProgressCallback callback
)

void AddPages( 
   RasterImage^ image,
   int imageFirstPageNumber,
   int imageLastPageNumber,
   OcrProgressCallback^ callback
) 

Parameters

image

The Leadtools.RasterImage object containing the pages to add.

imageFirstPageNumber

1-based index of the first page in image to add.

imageLastPageNumber

1-based index of the last page in image to add. A value of -1 means add up to and including the last page in image.

callback

Optional callback to show operation progress.

This method copies the Leadtools.RasterImage object image data into the newly created IOcrPage. Therefore, after this method returns, there is no relationship between image and the IOcrPage inside the OCR document. For example, if you do not need the image object after calling this method, you should dispose it after this method returns.

This method guarantees that no changes will be made to image.

A short-cut to add all the pages of a Leadtools.RasterImage object to the OCR document is AddPages(image, 1, -1, callback).

To add a single page from a Leadtools.RasterImage object, you can use AddPage(RasterImage image, OcrProgressCallback callback).

This method will add the page(s) 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 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.

Target Platforms: Microsoft .NET Framework 2.0, Windows 2000, Windows XP, Windows Server 2003 family, Windows Server 2008 family, Windows Vista, Windows 7

Reference