lineGetCallInfo (Compact 2013)

3/26/2014

This function enables an application to obtain fixed information about the specified call.

Syntax

LONG WINAPI lineGetCallInfo(
  HCALL hCall,
  LPLINECALLINFO lpCallInfo 
);

Parameters

• hCall
  Handle to the call to be queried. The call state of hCall can be any state.

• lpCallInfo
  Pointer to a variably sized data structure of type LINECALLINFO. Upon successful completion of the request, this structure is filled with call-related information. Prior to calling lineGetCallInfo, the application should set the dwTotalSize member of this structure to indicate the amount of memory available to TAPI for returning information.

Return Value

Returns zero if the request succeeds or a negative 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_RESOURCEUNAVAIL	The resources are unavailable.
LINEERR_INVALPOINTER	The pointer is invalid.
LINEERR_STRUCTURETOOSMALL	The structure is too small.
LINEERR_NOMEM	Not enough memory is available.
LINEERR_UNINITIALIZED	A parameter is uninitialized.
LINEERR_OPERATIONFAILED	The operation failed.
LINEERR_OPERATIONUNAVAIL	The operation is unavailable.

Remarks

A separate LINECALLINFO structure exists for every incoming or outgoing call. The structure contains primarily fixed information about the call. An application would typically be interested in checking this information when it receives its handle for a call by the LINE_CALLSTATE message, or each time it receives notification by a LINE_CALLINFO message that parts of the call information structure have changed. These messages supply the handle for the call as a parameter.

Requirements

Header	tapi.h
Library	TAPI32.dll

See Also

Reference

TAPI Line Device Functions
LINE_CALLINFO (TAPI)
LINE_CALLSTATE (TAPI)
LINECALLINFO