Platform SDK: TAPI |
The TSPI_lineGetCallStatus function returns the current status of the specified call.
LONG TSPIAPI TSPI_lineGetCallStatus( HDRVCALL hdCall, LPLINECALLSTATUS lpCallStatus );
Returns zero if the function succeeds, or an error number if an error occurs. Possible return values are as follows:
LINEERR_INVALCALLHANDLE, LINEERR_OPERATIONFAILED, LINEERR_NOMEM, LINEERR_RESOURCEUNAVAIL, LINEERR_OPERATIONUNAVAIL.
The following table indicates which members of the LINECALLSTATUS data structure are filled in by the service provider and which members are filled in by TAPI. The service provider must preserve (it must not overwrite) the values filled in by TAPI.
Member name | TAPI | Service provider |
---|---|---|
dwTotalSize; | X | |
dwNeededSize; | X | |
dwUsedSize; | X | |
dwCallState; | X | |
dwCallStateMode; | X | |
dwCallPrivilege; | X | |
dwCallFeatures; | X | |
dwDevSpecificSize; | X | |
dwDevSpecificOffset; | X |
TSPI_lineGetCallStatus returns the dynamic status of a call, whereas TSPI_lineGetCallInfo returns primarily static information about a call. Call status information includes the current call state, detailed mode information related to the call while in this state (if any), as well as a list of the available TSPI functions TAPI can invoke on the call while the call is in this state.
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 Tspi.h.