Missing FlushMenuThemes, SetPreferredAppMode

[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

[riverar]

RtlGetVersion is already covered by WDK metadata.

FlushMenuThemes and SetPreferredAppMode appear to be undocumented, exported only by ordinal via uxtheme. While public, not sure those are a candidate for addition to metadata? @mikebattista

[ghost1372]

Thank You @riverar so what should i do? i am not familiar with WDK metadata. should i install some nuget package to fix it?

[riverar]

@AArnott What's the official way to bring WDK metadata into CsWin32? Or does @ghost1372 need to manually add a reference like I did in https://github.com/microsoft/CsWin32/issues/1176?

[AArnott]

WDK metadata is brought in by default. RtlGetVersion is available already if you ask for it in NativeMethods.txt. It's generated as Windows.Wdk.PInvoke.RtlGetVersion

[ghost1372]

WDK metadata is brought in by default. RtlGetVersion is available already if you ask for it in NativeMethods.txt. It's generated as Windows.Wdk.PInvoke.RtlGetVersion

tnx but its not working!

[riverar]

@ghost1372 Try just adding RtlGetVersion to NativeMethods.txt.

[ghost1372]

RtlGetVersion

Tnx it is working fine! It's very strange, I tried this before and it didn't work (my first post), but now it works without any problem, of course I have to say that I installed the following packages (In CSWin32, their versions are less)

    <PackageReference Include="Microsoft.Windows.SDK.Win32Metadata" Version="62.0.23-preview" />
    <PackageReference Include="Microsoft.Windows.WDK.Win32Metadata" Version="0.12.8-experimental" />

but now that I have removed it, it still works.

[ghost1372]

I was globally using the following namespace, so PInvoke was always called from there global using Windows.Win32; Now I found that PInvoke is also available in the following namespace using Windows.Wdk;

[AArnott]

I've dropped RtlGetVersion from the title since that's already there. That leaves the remaining two apparently undocumented functions for consideration.

[mikebattista]

I'm following up for some more context on these APIs. If they're internal/undocumented, then I won't add them here.

[mikebattista]

I confirmed these aren't ready for general use so will not be added here.