Device

Changing Screen Brightness


	
	
	

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


	
	

Obtaining OS System Information


	
	

Determine if an App is Installed