CComCachedTearOffObject::QueryInterface

Статья
10/16/2008

Retrieves a pointer to the requested interface.

STDMETHOD(QueryInterface)(
   REFIID iid ,
   void** ppvObject 
);

Параметры

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.

Возвращаемое значение

A standard HRESULT value.

Заметки

If the requested interface is IUnknown, returns a pointer to the CComCachedTearOffObject's own IUnknown and increments the reference count. Otherwise, queries for the interface on your tear-off class using the InternalQueryInterface method inherited from CComObjectRootEx.