IItemFilter

The IItemFilter methods are (as ordered in the virtual function table after the IUnknown methods):

with prototypes:

HRESULT HasFilter (INT, BOOL *);

HRESULT GetTextFilterCondition (TEXTFILTER_OPTIONS, IFilterCondition **);

HRESULT GetTextPropKeys (PROPERTYKEY **, UINT *);

HRESULT GetFilterCondition (IFilterCondition **);

HRESULT GetPropertyFilter (PROPERTYKEY *, IFilterCondition **);

HRESULT GetIDListFilters (IObjectArray **);

in which TEXTFILTER_OPTIONS is an undocumented enumeration and IObjectArray is an undocumented interface.