TSPI_lineGetCallStatus

  • 项目

This function returns the current status of the specified call.

LONG TSPIAPI TSPI_lineGetCallStatus(
  HDRVCALL hdCall, 
  LPLINECALLSTATUS lpCallStatus 
);

Parameters

  • hdCall
    Service provider's handle to the call to be queried for its status. The call state of hdCall can be any state.
  • lpCallStatus
    Pointer to a variably sized data structure of typeLINECALLSTATUS. This structure is filled with call status information.

Return Values

Returns zero if the function succeeds, or an error number if an error occurs. The following table shows the return values for this function.

Value Description
LINEERR_INVALCALLHANDLE The handle to the call is invalid.
LINEERR_OPERATIONFAILED The operation failed.
LINEERR_NOMEM Not enough memory is available.
LINEERR_RESOURCEUNAVAIL The resource is unavailable.
LINEERR_OPERATIONUNAVAIL The operation is unavailable.

Remarks

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 the TSPI_lineGetCallInfo function 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.

Requirements

OS Versions: Windows CE 3.0 and later.
Header: Tapicomn.h.
Link Library: Coredll.lib.

See Also

TSPI_lineGetCallInfo

 Last updated on Saturday, April 10, 2004

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