Detect if Windows 10 Anniversary (version number)

Questions & Answers
1

Hi there,

Okay, here’s the thing. Some users are experiencing this issue with our game: for those who do have Win10 Anniversary Update, the Xbox One controller mapping I did is working nice, but for those using a Win10 pre-Anniversary the controller axis mapping is completely messed up.

So, what I’m going to do is to check which version of Win10 they are using, and apply a different mapping for the XOne pad depending on the current OS version. But I’m a bit lost on one thing: how can I check by code whether their Win10 is Anniversary Update or not? SystemInfo.operatingSystem is of no use, since it is always returning “Windows 10 (10.0.0)”.

Thanks in advance.

2

Okay, someone from the Unity tech team (@Tautvydas-Zilys) has shown me how to detect if W10A, I’m copying here his method so any future user looking for this can also know how to achieve this.

[DllImport("api-ms-win-core-winrt-string-l1-1-0.dll")]
private static extern int WindowsCreateString([MarshalAs(UnmanagedType.LPWStr)]string sourceString, int stringLength, out IntPtr hstring);
 
[DllImport("api-ms-win-core-winrt-string-l1-1-0.dll")]
private static extern int WindowsDeleteString(IntPtr hstring);
 
[DllImport("api-ms-win-core-winrt-l1-1-0.dll")]
private static extern int RoGetActivationFactory(IntPtr className, ref Guid guid, out IntPtr instance);
 
public static bool IsRunningOnAnniversaryUpdateOrNewer()
{
    try
    {
        const string kAppExtensionClassName = "Windows.ApplicationModel.AppExtensions.AppExtensionCatalog";
        var classNameHString = IntPtr.Zero;
 
        if (WindowsCreateString(kAppExtensionClassName, kAppExtensionClassName.Length, out classNameHString) != 0)
            return false;
 
        try
        {
            IntPtr appExtensionCatalogStatics;
            var IID_IAppExtensionCatalogStatics = new Guid(1010198154, 24344, 20235, 156, 229, 202, 182, 29, 25, 111, 17);
 
            if (RoGetActivationFactory(classNameHString, ref IID_IAppExtensionCatalogStatics, out appExtensionCatalogStatics) != 0)
                return false;
 
            if (appExtensionCatalogStatics != IntPtr.Zero)
            {
                Marshal.Release(appExtensionCatalogStatics);
                return true;
            }
 
            return false;
        }
        finally
        {
            WindowsDeleteString(classNameHString);
        }
    }
    catch
    {
        return false;
    }
}

It checks whether a Windows runtime class Windows.ApplicationModel.AppExtensions.AppExtensionCatalog exists on the system, which was added in anniversary update:

https://msdn.microsoft.com/library/windows/apps/windows.applicationmodel.appextensions.appextensioncatalog