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Disable automatic application termination in OS X
Authored by: vykor on Aug 02, '12 12:15:02PM

Well, perhaps not quite. There is a system policy to "terminate" apps with no windows open, automatically -- this has been set since Lion, and has nothing to do with the app-specific setting. You can see John Siracusa's review on it from Ars.

http://arstechnica.com/apple/2012/07/os-x-10-8/18/#automatic-termination

You can test this experimentally by opening Preview, opening a PDF, closing the window, and then switching to another app. Preview disappears from the Dock and the Cmd-Tab list.

Now, the process does not actually leave the Activity Monitor or top, so one wonders how "terminated" it really is.



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Disable automatic application termination in OS X
Authored by: chabig on Aug 02, '12 02:32:56PM

"You can test this experimentally by opening Preview, opening a PDF, closing the window, and then switching to another app. Preview disappears from the Dock and the Cmd-Tab list."

On my machine, Preview stays in the Dock and the Cmd-Tab list. I think the System is smarter than you think and is basing the decision to terminate or keep open based on demand for resources.



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Disable automatic application termination in OS X
Authored by: DavidRavenMoon on Aug 03, '12 08:08:21AM

So I just tried opening Preview, and then opening a PDF. As soon as I closed the PDF window Preview did quit, and it is still in the Activity Monitor.

Very odd.

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Disable automatic application termination in OS X
Authored by: jaydisc on Aug 02, '12 05:02:45PM

I think you still have to opt-in for this behavior. Obviously, Apple has opted-in Preview and TextEdit.



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