Determining when to use FileOpenPicker or IFileDialog

[lb90]

As reported in https://learn.microsoft.com/en-us/uwp/api/windows.storage.pickers.filesavepicker#in-a-desktop-app-that-requires-elevation (see also #2504), apps should use the WinRT file pickers when run non-elevated and the Common Item Dialogs (IFileDialog) when run elevated. Which method should be used to determine if running elevated or not?

• Should we use PrivilegeCheck?
• Should we use GetTokenInformation, similarly to the AppContainer check?
• Any other method?

Thank you very much!
Luca

[DHancock]

If you require an unmanged version, the runtime installer (and others) use this:

https://github.com/microsoft/WindowsAppSDK/blob/main/dev/Common/Security.IntegrityLevel.h

[Gaoyifei1011]

Is there a c# version of this code?

[DHancock]

    private static bool GetIsElevated()
    {
        try
        {
            using (WindowsIdentity identity = WindowsIdentity.GetCurrent())
            {
                WindowsPrincipal principal = new WindowsPrincipal(identity);
                return principal.IsInRole(WindowsBuiltInRole.Administrator);
            }
        }
        catch (Exception ex)
        {
            Debug.Fail(ex.ToString());
        }

        return false;
    }

(with the caveat that I haven't tested it in a domain environment)

[Gaoyifei1011]

Thanks for your answer, this code solves my problem