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Returns information about the filter.
HRESULT QueryFilterInfo( FILTER_INFO * pInfo );
Parameters
- pInfo
- [out] Pointer to a
FILTER_INFOstructure.
Return Values
Returns an HRESULTvalue that depends on the implementation. HRESULTcan be one of the following standard constants, or other values not listed:
Value Description E_FAIL Failure. E_POINTER Null pointer argument. E_INVALIDARG Invalid argument. E_NOTIMPL Method isn't supported. S_OK or NOERROR Success. Remarks
The FILTER_INFOstructure is defined as follows:
typedef struct _FilterInfo { [string] WCHAR achName[MAX_FILTER_NAME]; // allowed to be null IFilterGraph * pGraph; // null if not part of graph } FILTER_INFO ;Note that on return, if the pGraphmember of the FILTER_INFOstructure is non-NULL, it will have an outstanding reference count and should be released when the interface is no longer needed.