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Retrieves a pointer to the requested interface pointer.
STDMETHOD(QueryInterface)(
   REFIID iid,
   void** ppvObject 
) ;
Parameters
- iid 
 [in] The GUID of the interface being requested.
- ppvObject 
 [out] A pointer to the interface pointer identified by iid, or NULL if the interface is not found.
Return Value
A standard HRESULT value.
Remarks
QueryInterface only handles interfaces in the COM map table.
Requirements
Header: atlcom.h
See Also
Reference
CComObjectRootEx::InternalQueryInterface