Re: GNUstep and session management

[Richard Frith-Macdonald]

On 2005-10-06 10:11:53 +0000 Chris Vetter <cbv@gmx.net> wrote:

> On Thu, 06 Oct 2005 10:50:22 +0200, Saso wrote:
> > Quoting Roman Belenov <rbelenov@yandex.ru>:
> > > Is there a fallback for applications that don't explicitly observe this
> > > notification (like passing terminate: to NSApplication instance) ? What
> > > about OpenStep or Mac OS X - do they have something like that ?
> > In theory, when the workspace (or session manager) sends
> > NSWorkspaceWillPowerOffNotification, every running application (and thus
> > also it's app delegate object) is sent -applicationSholdTerminate to find 
> > out whether to proceed. However, I haven't used it on GNUstep yet, so no
> > clue as to how reliable this is.
>
> I actually played around with NSWorkspaceWillPowerOffNotification last night
> by posting this notification in one application, explicitly listening for it
> in another and a third without a listener.
>
> Neither of the three applications got a -applicationShouldTerminate:

The -applicationShouldTerminate: message is supposed to be sent to the 
application's delegate by the -terminate method.

My reading of it is that it's your responsibility as a developer to have 
your code listen for the notification and call [NSApp -terminate] when you 
receive it.  I don't think the gui/AppKit does that for you.  Did you try 
this on MacOS-X?  It would be interesting to know how it actually behaves.