返回值是什么?Return Values This method supports the standard return values E_OUTOFMEMORY and E_UNEXPECTED, as well as the following: S_OK The connection has been established and *pdwCookie has the connection token. E_POINTER The value in pUnk or pdwCookie is not valid. For example, either pointer may be NULL. CONNECT_E_ADVISELIMIT The connection point has already reached its limit of connections and cannot accept any more. CONNECT_E_CANNOTCONNECT The sink does not support the interface required by this connection point. Res
This method supports the standard return values E_OUTOFMEMORY and E_UNEXPECTED, as well as the following: S_OK
The connection has been established and *pdwCookie has the connection token.
E_POINTER
The value in pUnk or pdwCookie is not valid. For example, either pointer may be NULL.
CONNECT_E_ADVISELIMIT
The connection point has already reached its limit of connections and cannot accept any more.
CONNECT_E_CANNOTCONNECT
The sink does not support the interface required by this connection point.
Res