Is it possible to change/set the alarm clock from a different application on the iPhone

Question

Is it possible to access information like the alarm clock time and change it from a different application on the iPhone. And if its possible to do it, can it be approved by the app store to sell it?

Answer 1

You can certainly do it—the CFPreferences API would probably be the right approach—but you definitely wouldn't get allowed into the App Store. If you're looking to make an alarm-clock application, check out the Scheduling Local Notifications docs.