Programmatically check state of do not disturb on OS X

Question

Using Objective-C, how can I programmatically check the state of the system "Do Not Disturb" setting on OS X? I'm fine with using hacks or private APIs since I don't need to submit to the Mac App Store.

Answer 1

In Objective-C, you can access the value like this:

NSUserDefaults* defaults = [[NSUserDefaults alloc]initWithSuiteName:@"com.apple.notificationcenterui"];
BOOL dnd = [defaults boolForKey:@"doNotDisturb"];