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GetResultsHRC
- 0
Retrieves results from a recognition context HRC. A recognizer must export this function.
int GetResultsHRC( HRC hrc, UINT uType, LPHRCRESULT rghrcresults, UINT cResults )
Parameters
hrc
Handle to the HRC object.
uType
Specifies the type of expected results. This can be one of the following
values:
Constant
| Description
| GRH_ALL
| Return all results.
| GRH_GESTURE
| Return results of type gesture only.
| GRH_NONGESTURE
| Return all results not of type gesture.
|
rghrcresults
Address of an array of HRCRESULT objects.
cResults
The size of the rghrcresults array, in objects. The actual size in bytes can be calculated by multiplying cResults by the size of HRCRESULT. This parameter must be greater than 0.
Return Value
Returns the actual number of results returned if successful. This can be 0;
otherwise, returns one of the following negative values:
Constant
| Description
| HRCR_ERROR
| Invalid parameter or other error.
| HRCR_HOOKED
| A hook preempted the result.
| HRCR_MEMERR
| Insufficient memory.
|
Comments
The actual number of results returned by this function may be less than the
number specified by cResults. It is also less than or equal to the count specified at the creation of hrc by the cMaxResults parameter in SetMaxResultsHRC, regardless of the size of the rghrcresults array.
A return value of 0 indicates that the recognizer was not able to recognize
any of the input, even if coerced by a word list set into the HRC. A recognizer should never return a result consisting entirely of SYV_UNKNOWN
symbols.
The calling application must explicitly destroy each valid result using DestroyHRCRESULT. However, if the return value is 0 or negative, the contents of the rghrcresults array are undefined (though not NULL) and DestroyHRCRESULT must not be called.
See Also
DestroyHRCRESULT
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