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Asked: 2026-06-16T09:55:20+00:00

Possible Duplicate: How to create a Menubar application for Mac I have implemented a

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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.
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1 Answer

  1. Editorial Team

    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.

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