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Alex Rivera
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Possible Duplicate: How does an underscore in front of a variable in a cocoa objective-c class work? When creating a new project in Xcode 4, the boilerplate code adds an underscore character when it synthesizes the ivars in the implementation file as: @synthesize window = _window; or: @synthesize managedObjectContext = __managedObjectContext; Can someone tell me what is being accomplished here? I'm not a complete nube, but this is one aspect of objective-C I don't understand. Another point of confusion; in the app delegate implementation, after synthesizing the window iVar as above, in the application didFinishLaunchingWithOptions: method the window and viewController ivars are referred to using self: self.window.rootViewController = self.viewController [self.window makeKeyAndVisible]; but in the dealloc method it's _window, or _viewController Thanks
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