How to make a macOS App quit when you press the red close button?

Hi!

I am making an app with Mac OS X Snow Leopard and XCode version 3. I can't figure out how to make the app quit when you press the red "close" button in the top left corner. Could you please tell me how to do this?

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Snow_Leopard
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Xcode 3???!!??!!


Still, the answer has been around since OS X 10.0, so you're in luck.


In your application delegate .m file, implement this delegate method:


     - (BOOL)applicationShouldTerminateAfterLastWindowClosed:(NSApplication *)sender
     {
          return YES;
     }


and the app should terminate automatically when that main window is closed.

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QuinceyMorris
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