function queries the specified address on the specified line device to
determine its telephony capabilities.
| HLINEAPP hLineApp,
| DWORD dwDeviceID,
| DWORD dwAddressID,
| DWORD dwAPIVersion,
| DWORD dwExtVersion,
| LPLINEADDRESSCAPS lpAddressCaps
The handle to the application's registration with TAPI.
The line device containing the address to be queried.
The address on the given line device whose capabilities are to be queried.
The version number of the Telephony API to be used. The high-order word
contains the major version number; the low-order word contains the minor version
number. This number is obtained by lineNegotiateAPIVersion
The version number of the service provider-specific extensions to be used.
This number can be left zero if no device-specific extensions are to be used.
Otherwise, the high-order word contains the major version number; and the low-order
word contains the minor version number.
A pointer to a variably sized structure of type LINEADDRESSCAPS
. Upon successful completion of the request, this structure is filled with
address capabilities information. Prior to calling lineGetAddressCaps
, the application should set the dwTotalSize
field of this structure to indicate the amount of memory available to TAPI
for returning information.
Returns zero if the request is successful or a negative error number if an
error has occurred. Possible return values are:
LINEERR_BADDEVICEID, LINEERR_NOMEM, LINEERR_INCOMPATIBLEAPIVERSION,
LINEERR_OPERATIONFAILED, LINEERR_INCOMPATIBLEEXTVERSION, LINEERR_RESOURCEUNAVAIL,
LINEERR_INVALADDRESSID, LINEERR_STRUCTURETOOSMALL, LINEERR_INVALAPPHANDLE,
LINEERR_UNINITIALIZED, LINEERR_INVALPOINTER, LINEERR_OPERATIONUNAVAIL, LINEERR_NODRIVER,
Valid address IDs range from zero to one less than the number of addresses
returned by lineGetDevCaps
. The version number to be supplied is the version number that was returned as
part of the line's device capabilities by lineGetDevCaps
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