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One of my pet hates with OSX at the moment is that whenever I close an app (i.e. clicking the red button in the top left) then attempt to open it again using alt+tab I can't. I need to use my mouse or launch Alfred to open the app.

Ideally What I'd like todo is somehow override the close button with hide instead (hide as in cmd+h). By hiding an app, I can use alt+tab to retrieve it.

Any help would be great

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Specifically which apps? Most that I use do not do this. – ughoavgfhw Nov 13 '12 at 16:10
Ideally, all apps. – Shane Griffiths Nov 13 '12 at 22:37
You can reopen a default window by holding option before releasing command. Witch and LiteSwitch X have an option to make that the default behavior. – user495470 Nov 14 '12 at 4:40

There are two types of app in OS X.
Document-based apps can have multiple windows, and they only close the window when you click the close button (red cross). The other type of app has only one window; and when you click the close button it quits the app.

Cmd+tab in OS X doesn't behave in the way you are trying to use it; it is simply for switching between open apps in a similar way to alt+tab on Windows (but not identical). It doesn't open apps that have been closed.

It's not the answer you want to hear, but I'm afraid there isn't a way to override the close button globally; it is a part of OS X's AppKit and can't easily be overridden by third-party software.

An easier fix would be not to click close when you only want to hide an app. Try pressing Cmd+H instead, or perhaps minimising the window by clicking the yellow button instead of the red one.

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Thanks for your input. Appreciate that :) – Shane Griffiths Nov 13 '12 at 22:37

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