Is it possible to determine screen orientation in a native Windows 8.1 Desktop App?

Question

I need to account for the different orientations a device can be in. Aka landscape, landscape flipped, portrait, or portrait flipped. My app is written in native C++ and is running on Windows 8.1 as a desktop app (cross platform is not a requirement in any way).

I know that I can determine if the device is in portrait or landscape using methods outlined by Microsoft here: http://msdn.microsoft.com/en-us/library/ms812142.aspx

However, there's no way to discern between landscape and landscape flipped (or portrait and portrait flipped).

I could get exactly what I need by checking the DisplayInformation.CurrentOrientation property but it's a WinRT API. Which means if I wanted to use it, my app would have to use CLR, which is a non-starter.

Also I'd really like to keep my app as a single executable and I don't think there's a clean way to do that and call managed APIs at the same time. But then again, I'm very inexperienced with native + managed code integration.

So, does anyone know of any way of figuring out display orientation using only native code in Windows?

Answer 1

I figured this out. It's actually a lot easier than I thought. EnumDisplaySettings() doesn't populate the dmDisplayOrientation field in the DEVMODE struct, but EnumDisplaySettingsEx() does. So it's actually really easy :)

There's a good example here.