#import "AppDelegate.h" @implementation AppDelegate - (void) applicationDidFinishLaunching: (NSNotification *) aNotification { } - (BOOL) applicationShouldTerminateAfterLastWindowClosed: (NSApplication *) theApplication { return YES; } - (IBAction) scambiaFinestre: (id) sender { switch([sender tag]){ case 0:{ [_finestra2 orderOut: self]; [_finestra1 makeKeyAndOrderFront: self]; } case 1:{ [_finestra1 orderOut: self]; [_finestra2 makeKeyAndOrderFront: self]; } } } @end