LINE_CALLINFO message
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
The LINE_CALLINFO 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
TAPI version |
Requires TAPI 2.0 or later |
Header |
Tapi.h |