The SmsGetFilterType function retrieves the filter type and filter tag for the specified filter.
SMS_STATUS SmsGetFilterType(
HANDLE hFilter, // Handle to filter.
DWORD *pfilterType, // Pointer to DWORD that will receive the
// filter type.
char *pszTag // Pointer to string that will receive the
// filter tag.
);
The SmsGetFilterType function returns a status code SMS_STATUS. If successful, the function returns a status of SMS_OK. Otherwise, it returns one of the following manifest constants: