Make a Cocoa application quit when the main window is closed?

Question

How to make a Cocoa application quit when the main window is closed? Without that you have to click on the app icon and click quit in the menu.

Answer 1

You should have an IBOutlet to your main window. For Example: IBOutlet NSWindow *mainWindow;

- (void)awakeFromWindow {
    [mainWindow setDelegate: self];
}
- (void)windowWillClose:(NSNotification *)notification {
    [NSApp terminate:self];
}

If this does not work you should add an observer to your NSNotificationCenter for the Notification NSWindowWillCloseNotification. Don't forget to check if the right window is closing.