Re: Newbie COM / HTTP question

[Mark Hammond]

Brian Teague wrote:

>  nsCOMPtr<nsIHttpAuthenticator> serv = do_GetService(contractid, &rv);
> 
> Which implementation of nsIHttpAuthenticator is returned?  


The do_GetService() call takes a contract ID - not an interface ID.  So 
it creates a _component_, then does a QI for nsIHttpAuthenticator.

Thus, the only way to change the implementation is to change the 
contract ID (or to replace the implementation with a new component that 
has the same contractid, but that is probably a slippery slope.)

Mark.