ImageGear Professional DLL v17.1 for Windows Accusoft
IG_REC_approx_regex_match_cb_set
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ImageGear Professional DLL v17.1 for Windows > API Reference Guide > Recognition Component API Reference > Recognition Component Functions Reference > Approx Regex Functions > IG_REC_approx_regex_match_cb_set

Glossary Item Box

Assigns the approximate regex match callback.

Declaration:

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AT_ERRCOUNT ACCUAPI IG_REC_approx_regex_match_cb_set(
   const HIG_REC_APPROX_REGEX higRecApproxRegex,
   LPFNIG_REC_APPROX_REGEX_MATCH_CB const  lpfnCallback,
   LPVOID const  lpUserData
);

Arguments:

higRecApproxRegex The handle to an approximate regex instance.
lpfnCallback The callback function to invoke after a qualified match is made.
lpUserData The anonymous data passed to the callback function.

Return Value:

The number of ImageGear errors that occurred during this function call. If there are no errors, the return value is IGE_SUCCESS.

Supported Raster Image Formats:

This function does not process image pixels.

Remarks:

The callback presents an opportunity for the caller to evaluate the match. Rejected matches shall not be included in the match result vector.

Example:

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AT_ERRCOUNT errCount = 0 ;
HIG_REC_APPROX_REGEX higRecApproxRegex = 0 ;
AT_INT user_data = 0 ;

IG_REC_approx_regex_create( &higRecApproxRegex ) ;
errCount = IG_REC_approx_regex_match_cb_set 
                          ( higRecApproxRegex, 
                            &on_match,
                            &user_data 
                          ) ;
IG_REC_approx_regex_delete( higRecApproxRegex ) ; 

See Also

HIG_REC_APPROX_REGEX

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