addGlobalMonitorForEventsMatchingMask not working on some computers

Question

I'm using this code to capture Global Keyboard Shortcuts in my app.

This works great on almost every computer I run it on. I tried it on a brand new Retina Macbook Pro this week and addGlobalMonitorForEventsMatchingMask doesn't work at all. It doesn't even log every key like I have it set up to do here for debugging.

Is there a more reliable way to do this? Right now I load this on applicationDidFinishLaunching.

I think it might make more sense to load it as its own method in the App Delegate but I'm not sure what the syntax of that would look like.

[NSEvent addGlobalMonitorForEventsMatchingMask:NSKeyDownMask handler:^(NSEvent *event){

    NSLog(@"sequence = %li", (unsigned long)[event modifierFlags]);

    // Activate app when pressing cmd-c
    if([event modifierFlags] == 1048840 && [[event charactersIgnoringModifiers] compare:@"c"] == 0) {

Answer 1

In OSX 10.9 (Mavericks) the setting has moved to System Preferences > Security & Privacy > Privacy > Accessibility - make sure your app is checked.