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ExportPage Method
See Also  Example
Leadtools.Document Namespace > RasterDocumentEngine Class : ExportPage Method



pageIndex
Index of the page to be updated. This is a zero-based index.
pageIndex
Index of the page to be updated. This is a zero-based index.
Exports the specified page to an Image object.

Syntax

Visual Basic (Declaration) 
Public Function ExportPage( _
   ByVal pageIndex As Integer _
) As RasterImage
Visual Basic (Usage)Copy Code
Dim instance As RasterDocumentEngine
Dim pageIndex As Integer
Dim value As RasterImage
 
value = instance.ExportPage(pageIndex)
C# 
public RasterImage ExportPage( 
   int pageIndex
)
C++/CLI 
public:
RasterImage ExportPage( 
   int pageIndex
)

Parameters

pageIndex
Index of the page to be updated. This is a zero-based index.

Return Value

If successful, returns the exported page as an RasterImage object.

Example

Visual BasicCopy Code
Public Sub ExportPageExample()
   ' Load an image
   RasterCodecs.Startup()
   Dim codecs As RasterCodecs = New RasterCodecs()
   codecs.ThrowExceptionsOnInvalidImages = True

   Dim image As RasterImage = codecs.Load(LeadtoolsExamples.Common.ImagesPath.Path + "ocr1.tif")

   ' Note that this is a sample key, which will not work in your toolkit
   RasterSupport.Unlock(Leadtools.RasterSupportType.Ocr, "TestKey")

   Dim rasterDocument As RasterDocumentEngine
   rasterDocument = RasterDocumentEngine.Instance
   rasterDocument.Startup()
   'assume page is added, refer to AddPage example for more information

   Try
      ' export page...
      image = rasterDocument.ExportPage(0)
      MessageBox.Show("The engine exported the specified page")
   Catch ex As Exception
      MessageBox.Show(ex.Message)
   End Try

   rasterDocument.Shutdown()
   RasterCodecs.Shutdown()
End Sub
C#Copy Code
public void ExportPageExample() 
{ 
   // Load an image 
   RasterCodecs.Startup(); 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
 
   RasterImage image = codecs.Load(LeadtoolsExamples.Common.ImagesPath.Path + "ocr1.tif"); 
 
   // Note that this is a sample key, which will not work in your toolkit 
   RasterSupport.Unlock(Leadtools.RasterSupportType.Ocr, "TestKey"); 
   RasterDocumentEngine rasterDocument; 
   rasterDocument = RasterDocumentEngine.Instance; 
   rasterDocument.Startup(); 
 
   // assume page is added, refer to AddPage example for more information 
 
   try 
   { 
      // export page... 
      image = rasterDocument.ExportPage(0); 
      MessageBox.Show("The engine exported the specified page"); 
   } 
   catch (Exception ex) 
   { 
      MessageBox.Show(ex.Message); 
   } 
 
   rasterDocument.Shutdown(); 
   RasterCodecs.Shutdown(); 
}

Remarks

For more information, refer to Working with Pages.

Requirements

Target Platforms: Microsoft .NET Framework 3.0, Windows XP, Windows Server 2003 family, Windows Server 2008 family

See Also

The Leadtools.Document namespace is deprecated and no longer supported as of LEADTOOLS v16. For v16 and later, please refer to: Leadtools.Forms.Ocr. This documentation is retained for v15 and earlier informational use only.