Microsoft DirectX 8.0 |
Informs an application when the tuner filter tunes to a new frequency.
Syntax
HRESULT OnTune( ITuneRequest** Request, long* Strength );
Parameters
- Request
- [in] Address of an ITuneRequest interface pointer that will receive the TuneRequest object whose Components collection has been filled in to reflect the substreams available on the new channel or frequency.
- Strength
- [in] Pointer to a variable of type long representing the signal strength of the new channel or frequency.
Return Value
Returns S_OK if successful. If the method fails, error information can be retrieved using the standard COM IErrorInfo interface.