Changing Screen Brightness


Subscribing to the Key Press Event


Using Ringer Mode


Getting and Setting Volume


Sounding a Beep


Sounding Multiple Tones

Sound MS Silence MS Repetitions Frequency

Vibrating the Device

Duration MS (Optional) Interval MS (Optional) Count (Optional)

Getting Screen Timeout


Setting Screen Timeout


Locking and Unlocking the Screen

Changing the lock screen requires device administration privileges, which can be obtained via the Administration screen, within the app.

Reading Power Information


Subscribing to the Power Changed Event


Subscribing to the Hardware Button Press Event (on supported devices)


Obtaining OS System Information


Determine if an App is Installed