| Platform SDK: TAPI |
The ITDigitDetectionEvent interface contains methods that retrieve the description of DTMF digit events. When the application's implementation of the ITTAPIEventNotification::Event method indicates a TAPI_EVENT equal to TE_DIGITEVENT, the method's pEvent parameter is an IDispatch pointer for the ITDigitDetectionEvent interface. The methods of this interface can be used to detect DTMF digits during a call. This interface is implemented by the application and called by the TAPI 3.0 DLL.
Note You must call the ITTAPI::put_EventFilter method and set an event filter mask that includes the TE_DIGITEVENT event to enable reception of DTMF digit events. If you do not call ITTAPI::put_EventFilter, your application will not receive any events. For more information, see the Events overview.
IUnknown Methods
IDispatch Methods
| ITDigitDetectionEvent methods | Description |
|---|---|
| get_Call | Gets a pointer to the ITCallInfo interface. |
| get_Digit | Gets a digit. |
| get_DigitMode | Gets the descriptor of the line digit mode. |
| get_TickCount | Gets the "tick count" (number of milliseconds since Windows started) at which the digit-gathering completed. |
| get_CallbackInstance | Gets the callback instance associated with the event. |
Windows NT/2000: Requires Windows 2000.
Version: Requires TAPI 3.0 or later.
Header: Declared in Tapi3.h.
Library: Use T3iid.lib.
Events, ITTAPIEventNotification, ITTAPI::RegisterCallNotifications