lineGetAddressStatus

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

LONG WINAPI 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. An address identifier is permanently associated with an address; the identifier remains constant across operating system upgrades.

lpAddressStatus

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

Return Values

Returns zero if the request succeeds or a negative error number if an error occurs. Possible return values are:

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

Requirements

  Windows NT/2000: Requires Windows NT 4.0 SP3 or later.
  Windows 95/98: Requires Windows 95 or later.
  Version: Requires TAPI 1.3 or later.
  Header: Declared in Tapi.h.
  Library: Use Tapi32.lib.
  Unicode: Implemented as Unicode and ANSI versions on all platforms.

See Also

TAPI 2.2 Reference Overview, Basic Telephony Services Reference, LINEADDRESSSTATUS