IRTCClient::SendDTMF
The SendDTMF method sends a DTMF to the active session and plays a feedback tone to the RTC default audio device. This method should be called when a dialpad button is pressed.
HRESULT SendDTMF(RTC_DTMFenDTMF);
Parameters
- enDTMF
[in] An RTC_DTMF enumeration that specifies which DTMF should be sent.
Return Values
RTC methods may return an RTC_E_ constant.
| Value | Meaning |
|---|---|
| RTC_E_CLIENT_NOT_INITIALIZED | The client has not been initialized. |
Remarks
The RTC Client API only supports sending DTMF to the active session. There is no mechanism for the application to receive DTMF.
Requirements
Client: Requires Windows XP.
Server: Requires Windows Server 2003.
Redistributable: Requires Rtcdll.dll on Windows 2000, and Windows Me/98.
Header: Declared in Rtccore.h.
Library: Included as a resource in Rtcdll.dll.
GUID: IID_IRTCClient is defined as 07829e45-9a34-408e-a011-bddf13487cd1.