15   T* _p;  variable
18   CMyComPtr() { _p = NULL;}  in CMyComPtr()
19   CMyComPtr(T* p) {if ((_p = p) != NULL) p->AddRef(); }  in CMyComPtr()
22     if ((_p = lp._p) != NULL)  in CMyComPtr()
23       _p->AddRef();  in CMyComPtr()
25   ~CMyComPtr() { if (_p) _p->Release(); }  in ~CMyComPtr()
26   void Release() { if (_p) { _p->Release(); _p = NULL; } }  in Release()
27   operator T*() const {  return (T*)_p;  }
29   T** operator&() { return &_p; }
30   T* operator->() const { return _p; }
35     if (_p)
36       _p->Release();
37     _p = p;
40   T* operator=(const CMyComPtr<T>& lp) { return (*this = lp._p); }
41   bool operator!() const { return (_p == NULL); }
47     _p = p2;  in Attach()
51     T* pt = _p;  in Detach()
52     _p = NULL;  in Detach()
58     return ::CoCreateInstance(rclsid, pUnkOuter, dwClsContext, iid, (void**)&_p);
75     return _p->QueryInterface(iid, (void**)pp);  in QueryInterface()