Re: launchd detecting when an application is running
Re: launchd detecting when an application is running
- Subject: Re: launchd detecting when an application is running
- From: Greg Guerin <email@hidden>
- Date: Wed, 3 Jun 2009 23:04:49 -0700
Tom Hohensee wrote:
I have written an application that I would like to launch whenever
a certain app is launched. I have used LaunchAgents in the past to
detect events such as USB insertion and volume mounting to perform
certain actions. I was wondering if there was a launchd.plist key
that allowed for launchd to detect an application startup.
Is this for distribution, or only for your personal use?
How soon after the original app launches do you need to start the
secondary app?
How much control do you have over the original app?
Can you replace the original app's existing executable with another
one that triggers your secondary app, then goes on to exec the
original executable? The trigger could be many things, including
something that launchd monitors (see 'man launchd.plist' for on-
demand conditions).
Maybe run a daemon that monitors FSEvents for creation of a temp-file
you know the original app will create.
Maybe on-demand monitor the original app's user-defaults, so launchd
triggers that way.
Those are just some random ideas. It might help if you described
exactly what you're trying to accomplish, including what the original
app is. Describe the problem; don't propose a solution. If you've
already tried something, tell us what you've tried and exactly why it
didn't work. Be specific.
-- GG
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