Call this method to create a connection between the CComPtrBase's connection point and a client's sink.
HRESULT Advise(
   IUnknown* pUnk,
   const IID& iid,
   LPDWORD pdw 
) throw( );
Parameters
- pUnk 
 A pointer to the client's IUnknown.
- iid 
 The GUID of the connection point. Typically, this is the same as the outgoing interface managed by the connection point.
- pdw 
 A pointer to the cookie that uniquely identifies the connection.
Return Value
Returns S_OK on success, or an error HRESULT on failure.
Remarks
See AtlAdvise for more information.
Requirements
Header: atlcomcli.h