CComDispatchDriver( );
CComDispatchDriver( IDispatch* lp );
CComDispatchDriver( IUnknown* lp );
Parameters
lp
[in] Pointer to an IDispatch or IUnknown interface.
Remarks
The constructor. If there is no lp parameter, the constructor initializes the data member p to NULL. If lp points to an IDispatch interface, the constructor sets p to that interface and calls AddRef. If lp points to an IUnknown interface, the constructor calls QueryInterface for the IDispatch interface and sets p to that interface.
The destructor calls Release on p, if necessary.