Re: Trapping user shutdown/logout/restart in Cocoa/Foundation tool
Re: Trapping user shutdown/logout/restart in Cocoa/Foundation tool
- Subject: Re: Trapping user shutdown/logout/restart in Cocoa/Foundation tool
- From: "parag vibhute" <email@hidden>
- Date: Tue, 8 Jan 2008 13:41:44 +0530
Is anybody there?
Please reply.
Thanks,
Palav
On 1/5/08, parag vibhute <email@hidden> wrote:
> Hi,
>
> While going through code snippets given in QA, I observed that apple used *
> daemon* API to run process in background. In my cocoa application, I just
> added daemon(0,0) line in my main function & using LSUIElement, hide the
> application icon. Now even though dock icon is hidden, my application is
> able to trap logout/restart/shutdown in
> -(void)workspaceWillPowerOff:(NSNotification
> *)aNotification. Want to know whether this way is correct? or is it having
> any drawback?
>
> Thanks for reply,
> Palav
>
>
> On Jan 4, 2008 9:50 PM, Jean-Daniel Dupas <email@hidden> wrote:
>
> > Le 4 janv. 08 à 16:46, parag vibhute a écrit :
> >
> > Hi,
> >
> > Thanks for reply. I read QA1340 which you mentioned & after going
> throught
> > it got following API:
> > *
> > IORegisterForSystemPower
> > Connects the caller to the Root Power Domain IOService for the purpose of
> > receiving Sleep, Wake, ShutDown, PowerUp notifications for the System. *
> >
> > Even though I have not implemented the code, I think above API will work
> > for Shutdown & Restart. Am I correct?
> >
> >
> > I did not try but addind a *kIOMessageSystemWillRestart case and a **
> > kIOMessageSystemWillPowerOff case in the switch statement should be
> > enough.*
> >
> >
> > Also then what should I use to trap logout event as did not find any info
> > regarding it in API reference?
> >
> >
> > Getting login/logout event from a command line tool is a bit tricky. You
> > have to use the System Configuration frameworks. But there is another Q&A
> > for this task ;-)
> >
> > http://developer.apple.com/qa/qa2001/qa1133.html
> >
> >
> >
> >
>
>
> --
>
> There are many things in your life that will catch your eye but only a few
> will catch your heart....pursue those'.
>
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