CComObjectStack( );
Remarks
The constructor. Calls FinalConstruct and then sets m_hResFinalConstruct to the HRESULT returned by FinalConstruct. If you have not derived your base class from CComObjectRoot, you must supply your own FinalConstruct method. The destructor calls FinalRelease.
CComObjectStack Overview | Class Members
See Also CComObjectRootEx::FinalConstruct