#include "ltdoc2.h"

L_LTDOC2_API L_INT L_Doc2GetSpecialCharExt(hDoc, nDocId, pSpecialChar, uStructSize)

Gets the current special characters used in the last recognition or save results process.


L_HDOC2 hDoc

Handle to the OCR document.

L_INT nDocId

Document ID created by calling L_Doc2CreateDocument.

pSPECIALCHAR2 pSpecialChar

Pointer to a SPECIALCHAR2 structure to be updated.

L_UINT uStructSize

Size in bytes, of the structure pointed to by pSpecialChar. Use sizeof(SPECIALCHAR2) to calculate this value.


Value Meaning
SUCCESS The function was successful.
< 1 An error occurred. Refer to Return Codes.


Special characters are the characters the engine will use when replacing all missing or rejected characters. This helps finding the missing or rejected characters with minimal effort when the recognition results are saved to a file.

To update the special characters, call the L_Doc2SetSpecialChar / L_Doc2SetSpecialCharExt function.

To recognize one or more pages, call the L_Doc2Recognize / L_Doc2RecognizeExt function.

Required DLLs and Libraries

Help Version 21.0.2021.4.7
Products | Support | Contact Us | Intellectual Property Notices
© 1991-2021 LEAD Technologies, Inc. All Rights Reserved.

LEADTOOLS OCR Module - OmniPage Engine C API Help