Re: Several Questions
Re: Several Questions
- Subject: Re: Several Questions
- From: Ammar Ibrahim <email@hidden>
- Date: Sun, 31 May 2009 03:57:31 +0300
On Sun, May 31, 2009 at 3:27 AM, Kyle Sluder <email@hidden> wrote:
> On Sat, May 30, 2009 at 5:20 PM, Ammar Ibrahim <email@hidden>
> wrote:
> > 1- How do you ensure only one instance of your app is running? How do you
> > detect if it stops responding? Can you restart it using something like a
> > watchdog? And how would you go about implementing it?
>
> The system already does this for you. Unless you're not writing a
> regular application (say, a daemon or something), or you only want one
> instance regardless of how many people are logged in on the machine
> (say, using Fast User Switching). If you need to ask this question,
> you're probably not in either of these scenarios, so don't worry about
> it.
>
Actually, I'm writing a non regular application, and it's for a controlled
environment. No users will be using the system, it should be completely
automated and recover from errors. All I need is to make sure my app is
running at all times. Would a simple cronjob check do the trick? The only
thing I dont know how to do at the moment is to check if the app is not
responding, and force quit it from an external script/app
>
>
> > 2- Is there a way to launch applications like iTunes from cocoa without
> the
> > need to use AppleScript?
>
> Look at the NSWorkspace documentation. iTunes's bundle identifier is
> com.apple.iTunes, but in general you can look at any app bundle's
> Info.plist file to get its bundle identifier (the CFBundleIdentifier
> key).
Thanks, I did and it did the trick. One question though, it seems the call
returns before the app is launched, what's the best way to detect when the
app is launched? I heard there's something called notification center or so.
Is there a way to view all notifications being sent on my Mac?
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