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TSPI_lineGetCallAddressID function (tspi.h)

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The TSPI_lineGetCallAddressID function retrieves the address identifier for the indicated call.

Syntax

LONG TSPIAPI TSPI_lineGetCallAddressID(
  HDRVCALL hdCall,
  LPDWORD  lpdwAddressID
);

Parameters

hdCall

The service provider's handle to the call whose address identifier is to be retrieved. The call state of hdCall can be any state.

lpdwAddressID

A pointer to a DWORD into which the service provider writes the call's address identifier.

Return value

Returns zero if the function succeeds or an error number if an error occurs. Possible return values are as follows:

LINEERR_NOMEM, LINEERR_OPERATIONFAILED, LINEERR_OPERATIONUNAVAIL, LINEERR_RESOURCEUNAVAIL.

Remarks

If the service provider models lines as "pools" of channel resources and does inverse multiplexing of a call over several address identifiers it should consistently choose one of these address identifiers as the primary identifier reported by this function and in the LINECALLINFO data structure.

This function has no direct correspondence at the TAPI level. It gives TAPI sufficient information to implement the lineGetNewCalls function invoked with the LINECALLSELECT_ADDRESS option.

Requirements

Requirement Value
Target Platform Windows
Header tspi.h

See also

LINECALLINFO