In iOS, we receive a callback event when a user takes a screenshot. This is achieved by listening to the "UIApplicationUserDidTakeScreenshotNotification" event. Is there a similar event callback available for macOS? [[NSNotificationCenter defaultCenter] addObserverForName:UIApplicationUserDidTakeScreenshotNotification object:nil queue:mainQueue usingBlock:^(NSNotification *note) { // executes after screenshot NSLog(@"Screenshot Detection : %@", note); UIAlertView *screenshotAlert = [[UIAlertView alloc] initWithTitle:@"Screenshot Detected" message:@"Oh Oh no screenshot bruhh" delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil]; [screenshotAlert show]; }];