3.2.4.11.13 FilterData (Get) (Opnum 19)
The FilterData (Get) method retrieves the FilterData property, as specified in the property table in section 3.2.4.11.
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[propget] HRESULT FilterData( [out, retval] SAFEARRAY(BYTE)* ppData );
ppData: Receives the filter data. The FilterData is any arbitrary data, of total size that MUST NOT be greater than 1 KB, that MAY be used by the trace provider to filter which events are logged.
Return Values: This method MUST return an HRESULT with the severity bit clear on success as specified in [MS-ERREF]; otherwise, it MUST return one of the errors as defined in 2.2.1 or one of the errors as defined in [MS-ERREF] section 2.1.