Re: fast user switching (was <no subject>)
Re: fast user switching (was <no subject>)
- Subject: Re: fast user switching (was <no subject>)
- From: Tom Sutcliffe <email@hidden>
- Date: Wed, 6 Aug 2003 01:00:08 +0100
This is the case. The app is launched as a Login item and is owned by
the
user logging in. And I agree with you 100%, the second user should not
be
affected by it. But the only way that can happen is if the background
app
KNOWs there is another user using the system via a fast user switch.
What I
am looking for is a way to make that determination.
Guys,
The background app (launched from a login item) simply cannot affect
the second user, full stop. It doesn't need to check whether the user
it's running as has been fast-switched away from before popping up a
dialog or whatever. Any dialog it does show will be in the context of
the first user, and the second user won't see it. (Assuming it's
running as a login item: it simply doesn't have the privileges to make
any changes visible to any other users.)
If you really want the app to be able to look at all current sessions
on the computer (ie to find who's actually sitting at the computer
right now), you can't run it as a login item background app, it will
have to be a StartupItem running as root. If you do this, I've no idea
how you'd proceed as I don't have Panther.
As other people have pointed out, there may well not be an API for this
because the concept of 'the person sitting in front of the computer
right now' becomes meaningless if you allow remote graphical logins,
which Apple may well do now they have added fast-switching. Or, there
might not be a formal public API for it *yet*. Panther's not finished,
remember.
But hey, what do I know, I don't have Panther. On the plus side, I can
talk about it as much as I like, but on the minus, I could be
completely wrong ;)
Tom
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| | ><no subject> (From: Alec Carlson <email@hidden>) |