Detect if Mac OSX space changed in cocoa - NSWorkspaceActiveSpaceDidChangeNotification change / event / notification

gistfile1.txt

@implementation AppDelegate

- (void)applicationDidFinishLaunching:(NSNotification *)aNotification
{
    NSNotificationCenter *nc = [[NSWorkspace sharedWorkspace] notificationCenter];
    
    [nc addObserver:self
           selector:@selector(spaceChanged:)
               name:NSWorkspaceActiveSpaceDidChangeNotification
             object:[NSWorkspace sharedWorkspace]];
    
    NSLog(@"applicationDidFinishLaunching");
}

- (void)spaceChanged:(NSNotification *)aNotification{
    NSLog(@"spaceChanged");
}