Detect whether a Windows 8 Store App has a touch screen

Question

There are certain elements of Win 8 Store App UI that change based on whether the user has a touch screen. For example, a ScrollViewer, when rendered on a non-touch screen s

Answer 1

If you are using HTML/JS you can query it like this

var touchCapabilities = new Windows.Devices.Input.TouchCapabilities();
var isTouchCapable = touchCapabilities.touchPresent;

Answer 2

You can use the Windows.Devices.Input namespace to detect various capabilities (touch, keyboard, mouse, etc.). For example, the TouchCapabilities class has a TouchPresent property you could check to see if there's a digitizer available.

Take a look at the Input: Device capabilities sample to see them in action.