LINE_CALLINFO

The TSPI LINE_CALLINFO message is sent to the LINEEVENT callback function when the call information about the specified call has changed. TAPI can invoke lineGetCallInfo to determine the current call information.

LINE_CALLINFO
htLine = (HTAPILINE) hLineDevice;
htCall = (HTAPICALL) hCallDevice;
dwMsg = (DWORD) LINE_CALLINFO;
dwParam1 = (DWORD) CallInfoState;
dwParam2 = (DWORD) 0;
dwParam3 = (DWORD) 0;

Parameters

htLine

The TAPI opaque object handle to the line device.

htCall

The TAPI opaque object handle to the call device.

dwMsg

The value LINE_CALLINFO.

dwParam1

Specifies the call information item that has changed. This parameter can be a combination of the LINECALLINFOSTATE_ constants.

dwParam2

Unused.

dwParam3

Unused.

Remarks

This message is sent to TAPI whenever the event occurs and TAPI has the line open. However, no LINE_CALLINFO messages are sent for a call after the call has entered the idle state.

Requirements

  Windows NT/2000: Requires Windows NT 4.0 SP3 or later.
  Windows 95/98: Requires Windows 95 or later.
  Version: Requires TAPI 2.0 or later.
  Header: Declared in Tapi.h.

See Also

LINECALLINFOSTATE_ Constants, TSPI_lineGetCallInfo