IG_REC_approx_regex_match_cb

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:

Name	Type	Description
higRecApproxRegex	const HIG_REC_APPROX_REGEX	The handle to an approximate regex instance.
lpfnCallback	LPFNIG_REC_APPROX_REGEX_MATCH_CB	The callback function to invoke after a qualified match is made.
lpUserData	LPVOID	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.

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 ) ;

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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 ) ;

Remarks:

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