GetGuestOsInfo

// VmSavedStateDumpProvider.dll
#include <windows.h>

HRESULT GetGuestOsInfo(
    void* vmSavedStateDumpHandle,
    BYTE virtualTrustLevel,
    GUEST_OS_INFO* guestOsInfo
);

<DllImport("VmSavedStateDumpProvider.dll", ExactSpelling:=True)>
Public Shared Function GetGuestOsInfo(
    vmSavedStateDumpHandle As IntPtr,   ' void* in/out
    virtualTrustLevel As Byte,   ' BYTE
    guestOsInfo As IntPtr   ' GUEST_OS_INFO* out
) As Integer
End Function

' vmSavedStateDumpHandle : void* in/out
' virtualTrustLevel : BYTE
' guestOsInfo : GUEST_OS_INFO* out
Declare PtrSafe Function GetGuestOsInfo Lib "vmsavedstatedumpprovider" ( _
    ByVal vmSavedStateDumpHandle As LongPtr, _
    ByVal virtualTrustLevel As Byte, _
    ByVal guestOsInfo As LongPtr) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

GetGuestOsInfo = ctypes.windll.vmsavedstatedumpprovider.GetGuestOsInfo
GetGuestOsInfo.restype = ctypes.c_int
GetGuestOsInfo.argtypes = [
    ctypes.POINTER(None),  # vmSavedStateDumpHandle : void* in/out
    ctypes.c_ubyte,  # virtualTrustLevel : BYTE
    ctypes.c_void_p,  # guestOsInfo : GUEST_OS_INFO* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('VmSavedStateDumpProvider.dll')
GetGuestOsInfo = Fiddle::Function.new(
  lib['GetGuestOsInfo'],
  [
    Fiddle::TYPE_VOIDP,  # vmSavedStateDumpHandle : void* in/out
    -Fiddle::TYPE_CHAR,  # virtualTrustLevel : BYTE
    Fiddle::TYPE_VOIDP,  # guestOsInfo : GUEST_OS_INFO* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "vmsavedstatedumpprovider")]
extern "system" {
    fn GetGuestOsInfo(
        vmSavedStateDumpHandle: *mut (),  // void* in/out
        virtualTrustLevel: u8,  // BYTE
        guestOsInfo: *mut GUEST_OS_INFO  // GUEST_OS_INFO* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("VmSavedStateDumpProvider.dll")]
public static extern int GetGuestOsInfo(IntPtr vmSavedStateDumpHandle, byte virtualTrustLevel, IntPtr guestOsInfo);
"@
$api = Add-Type -MemberDefinition $sig -Name 'VmSavedStateDumpProvider_GetGuestOsInfo' -Namespace Win32 -PassThru
# $api::GetGuestOsInfo(vmSavedStateDumpHandle, virtualTrustLevel, guestOsInfo)

#uselib "VmSavedStateDumpProvider.dll"
#func global GetGuestOsInfo "GetGuestOsInfo" sptr, sptr, sptr
; GetGuestOsInfo vmSavedStateDumpHandle, virtualTrustLevel, varptr(guestOsInfo)   ; 戻り値は stat
; vmSavedStateDumpHandle : void* in/out -> "sptr"
; virtualTrustLevel : BYTE -> "sptr"
; guestOsInfo : GUEST_OS_INFO* out -> "sptr"
; ※HSP3.7は #func のため戻り値はシステム変数 stat に格納されます。

#uselib "VmSavedStateDumpProvider.dll"
#cfunc global GetGuestOsInfo "GetGuestOsInfo" sptr, int, var
; res = GetGuestOsInfo(vmSavedStateDumpHandle, virtualTrustLevel, guestOsInfo)
; vmSavedStateDumpHandle : void* in/out -> "sptr"
; virtualTrustLevel : BYTE -> "int"
; guestOsInfo : GUEST_OS_INFO* out -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

; HRESULT GetGuestOsInfo(void* vmSavedStateDumpHandle, BYTE virtualTrustLevel, GUEST_OS_INFO* guestOsInfo)
#uselib "VmSavedStateDumpProvider.dll"
#cfunc global GetGuestOsInfo "GetGuestOsInfo" intptr, int, var
; res = GetGuestOsInfo(vmSavedStateDumpHandle, virtualTrustLevel, guestOsInfo)
; vmSavedStateDumpHandle : void* in/out -> "intptr"
; virtualTrustLevel : BYTE -> "int"
; guestOsInfo : GUEST_OS_INFO* out -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	vmsavedstatedumpprovider = windows.NewLazySystemDLL("VmSavedStateDumpProvider.dll")
	procGetGuestOsInfo = vmsavedstatedumpprovider.NewProc("GetGuestOsInfo")
)

// vmSavedStateDumpHandle (void* in/out), virtualTrustLevel (BYTE), guestOsInfo (GUEST_OS_INFO* out)
r1, _, err := procGetGuestOsInfo.Call(
	uintptr(vmSavedStateDumpHandle),
	uintptr(virtualTrustLevel),
	uintptr(guestOsInfo),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function GetGuestOsInfo(
  vmSavedStateDumpHandle: Pointer;   // void* in/out
  virtualTrustLevel: Byte;   // BYTE
  guestOsInfo: Pointer   // GUEST_OS_INFO* out
): Integer; stdcall;
  external 'VmSavedStateDumpProvider.dll' name 'GetGuestOsInfo';

result := DllCall("VmSavedStateDumpProvider\GetGuestOsInfo"
    , "Ptr", vmSavedStateDumpHandle   ; void* in/out
    , "UChar", virtualTrustLevel   ; BYTE
    , "Ptr", guestOsInfo   ; GUEST_OS_INFO* out
    , "Int")   ; return: HRESULT

●GetGuestOsInfo(vmSavedStateDumpHandle, virtualTrustLevel, guestOsInfo) = DLL("VmSavedStateDumpProvider.dll", "int GetGuestOsInfo(void*, byte, void*)")
# 呼び出し: GetGuestOsInfo(vmSavedStateDumpHandle, virtualTrustLevel, guestOsInfo)
# vmSavedStateDumpHandle : void* in/out -> "void*"
# virtualTrustLevel : BYTE -> "byte"
# guestOsInfo : GUEST_OS_INFO* out -> "void*"
# なでしこ1は32bit・ANSI(Shift_JIS)。文字列=char*(ANSI)、ポインタ/ハンドル=void*(4byte)。