Get Windows Phone Screen Size and Scale Factor

using System.Windows;  
public void GetScreenResolution()  
{  
     double w = Application.Current.Host.Content.ActualWidth;  
     double h = Application.Current.Host.Content.ActualHeight;  
     int scale = Application.Current.Host.Content.ScaleFactor;  
}

The following is an overview of the current characteristics of all these properties:

	WVGA	HD	WXGA
ActualWidth	480	480	480
ActualHeight	800	853	800
ScaleFactor (%)	100	150	160
Resulting Size (Width/Height x Scale)	480x800	720x1280	768x1280