GdPicturePDF.ExternalOcrPageRequestEventHandler Delegate

In This Topic

This event is triggered when OCR is requested to an external engine.

Syntax

Visual Basic
C#
Delphi
JScript
Managed Extensions for C++
C++/CLI

'Declaration
 
<GuidAttribute("8B93F907-B23F-404E-A37C-243865E928AB")>
Public Delegate Sub GdPicturePDF.ExternalOcrPageRequestEventHandler( _
   ByVal ImageID As Integer, _
   ByVal PdfOcrOptions As GdPicturePDF.PdfOcrOptions, _
   ByRef Status As GdPictureStatus, _
   ByRef ResultEncoding As String, _
   ByRef OcrResult As String _
)

[Guid("8B93F907-B23F-404E-A37C-243865E928AB")]
public delegate void GdPicturePDF.ExternalOcrPageRequestEventHandler( 
   int ImageID,
   GdPicturePDF.PdfOcrOptions PdfOcrOptions,
   out GdPictureStatus Status,
   out string ResultEncoding,
   out string OcrResult
)

public delegate GdPicturePDF.ExternalOcrPageRequestEventHandler( 
    ImageID: Integer;
    PdfOcrOptions: GdPicturePDF.PdfOcrOptions;
   Out  Status: GdPictureStatus;
   Out  ResultEncoding: String;
   Out  OcrResult: String
);

GuidAttribute("8B93F907-B23F-404E-A37C-243865E928AB")
public delegate GdPicturePDF.ExternalOcrPageRequestEventHandler( 
   ImageID : int,
   PdfOcrOptions : GdPicturePDF.PdfOcrOptions,
   Status : GdPictureStatus,
   ResultEncoding : String,
   OcrResult : String
)

[Guid("8B93F907-B23F-404E-A37C-243865E928AB")]
public: __gc __delegate void GdPicturePDF.ExternalOcrPageRequestEventHandler( 
   int ImageID,
   GdPicturePDF.PdfOcrOptions* PdfOcrOptions,
   [PARAMFLAG::Out] GdPictureStatus Status,
   [PARAMFLAG::Out] string* ResultEncoding,
   [PARAMFLAG::Out] string* OcrResult
)

[Guid("8B93F907-B23F-404E-A37C-243865E928AB")]
public delegate void GdPicturePDF.ExternalOcrPageRequestEventHandler( 
   int ImageID,
   GdPicturePDF.PdfOcrOptions^ PdfOcrOptions,
   [Out] GdPictureStatus Status,
   [Out] String^ ResultEncoding,
   [Out] String^ OcrResult
)

Parameters

ImageID: Specifies the identifier of the GdPicture Image into which the OCR must be performed.
PdfOcrOptions: A PdfOcrOptions instance specifying the options requested to the OCR engine.
Status: A member of the GdPictureStatus enumeration that must be returned by the event subscriber.
ResultEncoding: A string specifying the encoding format of the serialized OCR result returned by the event subscriber. Please check the reference guide (Programming / OCR) to obtain the possible encoding list and models into which the data must be serialized.
OcrResult: The ocr result, as string, encoded in the format specified by the ResultEncodingParameter.

Remarks

Use the SetOverrideOcrEngine() method to specify that an external OCR engine must be used.

Reference

GdPicturePDF.ExternalOcrPageRequestEventHandler Members
GdPicture14 Namespace