CComPtr::CComPtr
CComPtr( );
CComPtr( T* lp );
CComPtr ( const CComPtr< T >& lp );
Parameters
lp
[in] Used to initialize the interface pointer, p.
T
[in] A COM interface.
Remarks
The default constructor sets p to NULL. The copy constructor sets p to the member pointer of lp and calls AddRef through p. If you pass a pointer type derived from T, the constructor sets p to the T* parameter and calls AddRef.
The destructor calls Release through p.