Menu status applications doubts

Question

Possible Duplicate:
How to create a Menubar application for Mac

I have implemented a feed with Cocoa, for Mac OS X.
It's a status application, displaying only the menu.Now basically I got three questions:

When I launch it I always see the application icon in the dock.But this is a menu status application, how do I remove the dock icon? It should be an application like Watts and Dropbox, a pure menu;
How do I prevent the user from launching the application multiple times? If the user does so, I would like to not launch a second instance of the application.

You are asking two different questions, which requires two different answer. — Black Frog, Dec 26 '12 at 20:49
I understand that this was a double question, I removed the third point and removed the iOS and iPhone tags. — Ramy Al Zuhouri, Dec 26 '12 at 22:41

score 1 · Accepted Answer · answered Dec 26 '12 at 21:00

How do I prevent the user from launching the application multiple times? If the user does so, I would like to not launch a second instance of the application.

That would commonly be done using a filesystem lock (flock) on unix based systems.

But then again, Cocoa has an even simpler solution for that; you may check if an application is active by supplying its bundle identifier to the system.

NSRunningApplication runningApplicationsWithBundleIdentifier:

See the NSRunningApplication Reference for more.

Actually, for number two, I recommend an NSMachPort check: https://gist.github.com/3956491 — CodaFi, Dec 26 '12 at 21:06

Menu status applications doubts

1 Answers1