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lineGetCallInfo

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

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 Values

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.

Note   This function is for TAPI version 2.0 and later.

Requirements

OS Versions: Windows CE 1.0 and later.
Header: Tapi.h.
Link Library: Coredll.lib.

See Also

LINE_CALLINFO | LINE_CALLSTATE | LINECALLINFO

 Last updated on Saturday, April 10, 2004

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