lineGetCountry function (tapi.h)
The lineGetCountry function fetches the stored dialing rules and other information related to a specified country/region, the first country/region in the country/region list, or all countries/regions.
LONG lineGetCountry( DWORD dwCountryID, DWORD dwAPIVersion, LPLINECOUNTRYLIST lpLineCountryList );
Country/region identifier (not the country code) of the country/region for which information is to be obtained. If the value 1 is specified, information on the first country/region in the country/region list is obtained. If the value 0 is specified, information on all countries/regions is obtained (which can require a great deal of memory — 20 KB or more).
Highest version of TAPI supported by the application (not necessarily the value negotiated by lineNegotiateAPIVersion on some particular line device).
Pointer to a location to which a LINECOUNTRYLIST structure is loaded. Prior to calling lineGetCountry, the application must set the dwTotalSize member of this structure to indicate the amount of memory available to TAPI for returning information.
Returns zero if the request succeeds or a negative error number if an error occurs. Possible return values are:
LINEERR_INCOMPATIBLEAPIVERSION, LINEERR_NOMEM, LINEERR_INIFILECORRUPT, LINEERR_OPERATIONFAILED, LINEERR_INVALCOUNTRYCODE, LINEERR_STRUCTURETOOSMALL, LINEERR_INVALPOINTER.