Does WinRT/Metro support multiple monitors?

I want to create an application that has multiple touch surfaces, preferably us开发者_运维知识库ing the Metro/WinRT APIs. However, much of what I've read indicates that Metro is confined to a single (primary?) monitor. Is that true?

Metro style applications are full screen, single screen only. There is no way to have a dual-screen application.

I have tested Win8 with multiple monitors. The metro interface is only ever available on a single monitor, with the othe always displaying the 'traditional' desktop. You can switch which monitor displays the metro UI, but cannot render it on both.

Microsoft heard this request and added multi-monitor support to Windows 8.1. See the Windows.UI.ViewManagement namespace, specifically the ProjectionManager and ApplicationViewSwitcher classes. There's also a Projection sample for this.