lineGetAddressStatus

The lineGetAddressStatus function allows an application to query the specified address for its current status.

LONG lineGetAddressStatus(

HLINE hLine,
DWORD dwAddressID,
LPLINEADDRESSSTATUS lpAddressStatus
);

Parameters
hLine

A handle to the open line device.

dwAddressID

An address on the given open line device. This is the address to be queried.

lpAddressStatus

A pointer to a variably sized data structure of type LINEADDRESSSTATUS. Prior to calling lineGetAddressStatus, the application should set the dwTotalSize field of this structure to indicate the amount of memory available to TAPI for returning information.

Return Values
Returns zero if the request is successful or a negative error number if an error has occurred. Possible return values are:

LINEERR_INVALADDRESSID, LINEERR_RESOURCEUNAVAIL, LINEERR_INVALLINEHANDLE, LINEERR_STRUCTURETOOSMALL, LINEERR_INVALPOINTER, LINEERR_UNINITIALIZED, LINEERR_NOMEM, LINEERR_OPERATIONUNAVAIL, LINEERR_OPERATIONFAILED.