User written checking callback return codes.
Values:
| IG_REC_CW_IMPOSSIBLE | The application finds that the recognized string passed to the checking function is not possible for the given zone. |
| IG_REC_CW_UNLIKELY | The application finds that the recognized string passed to the checking function is unlikely to be acceptable for the given zone. |
| IG_REC_CW_UNRESOLVED | The application's checking function cannot make a decision on the acceptability of the string for the zone. |
| IG_REC_CW_POSSIBLE | The application finds that the recognized string passed to the checking function is possible to be acceptable for the given zone. |
| IG_REC_CW_SURE | The application finds that the recognized string passed to the checking function is certainly acceptable for the given zone. |
Remarks:
This enum defines the possible values that a user-written checking callback function should return. This type of function should be written for zones where recognition accuracy can be improved by providing the recognition module with application-derived, additional checking information.