Missing FlushMenuThemes, SetPreferredAppMode, RtlGetVersion

[ghost1372]

Actual behavior

i want to use FlushMenuThemes, SetPreferredAppMode and RtlGetVersion methods but none of them exist, currently i can use them with dllimport:

[DllImport(ExternDll.UxTheme, EntryPoint = "#136", SetLastError = true, StringMarshalling = StringMarshalling.Utf16)]
public static extern void FlushMenuThemes();

[DllImport(ExternDll.UxTheme, EntryPoint = "#135", SetLastError = true, StringMarshalling = StringMarshalling.Utf16)]
public static extern int SetPreferredAppMode(PreferredAppMode preferredAppMode);

[DllImport(ExternDll.NTdll)]
public static extern int RtlGetVersion(out RTL_OSVERSIONINFOEX lpVersionInformation);

but i can not access this methods because do not exist/available

Expected behavior

we should be able to use FlushMenuThemes, SetPreferredAppMode, RtlGetVersion

Repro steps

1. NativeMethods.txt content:

`RtlGetVersion`
`FlushMenuThemes`
`SetPreferredAppMode`
`136`
`135`
`#136`
`#135`

2. NativeMethods.json content (if present):

3. Any of your own code that should be shared?

Context

• CsWin32 version: [e.g. 0.4.422-beta] latest
• Win32Metadata version (if explicitly set by project):
• Target Framework: [e.g. netstandard2.0] net8.0
• LangVersion (if explicitly set by project): [e.g. 9] Latest