CComCachedTearOffObject::QueryInterface

Retrieves a pointer to the requested interface.

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

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.

Requirements

Header: atlcom.h

See Also

Concepts

CComCachedTearOffObject Class

CComCachedTearOffObject Members

CComCachedTearOffObject::AddRef

CComCachedTearOffObject::Release