|Microsoft DirectX 9.0|
The CreateTuneRequest method creates an empty (uninitialized) tune request.
HRESULT CreateTuneRequest( ITuneRequest** ppTuneRequest );
[out] Address of a variable that receives a pointer to the ITuneRequest interface of the new tune request object. The caller must release the interface.
Returns S_OK if successful. If the method fails, error information can be retrieved using the standard COM IErrorInfo interface.
You can query the returned ITuneRequest pointer for derived interfaces. For more information, see the reference pages for the individual tuning space objects, which are listed in the topic Microsoft Unified Tuning Model Objects.