GetProductInfo

// KERNEL32.dll
#include <windows.h>

BOOL GetProductInfo(
    DWORD dwOSMajorVersion,
    DWORD dwOSMinorVersion,
    DWORD dwSpMajorVersion,
    DWORD dwSpMinorVersion,
    OS_PRODUCT_TYPE* pdwReturnedProductType
);

<DllImport("KERNEL32.dll", ExactSpelling:=True)>
Public Shared Function GetProductInfo(
    dwOSMajorVersion As UInteger,   ' DWORD
    dwOSMinorVersion As UInteger,   ' DWORD
    dwSpMajorVersion As UInteger,   ' DWORD
    dwSpMinorVersion As UInteger,   ' DWORD
    <Out> ByRef pdwReturnedProductType As UInteger   ' OS_PRODUCT_TYPE* out
) As Boolean
End Function

' dwOSMajorVersion : DWORD
' dwOSMinorVersion : DWORD
' dwSpMajorVersion : DWORD
' dwSpMinorVersion : DWORD
' pdwReturnedProductType : OS_PRODUCT_TYPE* out
Declare PtrSafe Function GetProductInfo Lib "kernel32" ( _
    ByVal dwOSMajorVersion As Long, _
    ByVal dwOSMinorVersion As Long, _
    ByVal dwSpMajorVersion As Long, _
    ByVal dwSpMinorVersion As Long, _
    ByRef pdwReturnedProductType As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

GetProductInfo = ctypes.windll.kernel32.GetProductInfo
GetProductInfo.restype = wintypes.BOOL
GetProductInfo.argtypes = [
    wintypes.DWORD,  # dwOSMajorVersion : DWORD
    wintypes.DWORD,  # dwOSMinorVersion : DWORD
    wintypes.DWORD,  # dwSpMajorVersion : DWORD
    wintypes.DWORD,  # dwSpMinorVersion : DWORD
    ctypes.c_void_p,  # pdwReturnedProductType : OS_PRODUCT_TYPE* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
GetProductInfo = Fiddle::Function.new(
  lib['GetProductInfo'],
  [
    -Fiddle::TYPE_INT,  # dwOSMajorVersion : DWORD
    -Fiddle::TYPE_INT,  # dwOSMinorVersion : DWORD
    -Fiddle::TYPE_INT,  # dwSpMajorVersion : DWORD
    -Fiddle::TYPE_INT,  # dwSpMinorVersion : DWORD
    Fiddle::TYPE_VOIDP,  # pdwReturnedProductType : OS_PRODUCT_TYPE* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "kernel32")]
extern "system" {
    fn GetProductInfo(
        dwOSMajorVersion: u32,  // DWORD
        dwOSMinorVersion: u32,  // DWORD
        dwSpMajorVersion: u32,  // DWORD
        dwSpMinorVersion: u32,  // DWORD
        pdwReturnedProductType: *mut u32  // OS_PRODUCT_TYPE* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("KERNEL32.dll")]
public static extern bool GetProductInfo(uint dwOSMajorVersion, uint dwOSMinorVersion, uint dwSpMajorVersion, uint dwSpMinorVersion, out uint pdwReturnedProductType);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_GetProductInfo' -Namespace Win32 -PassThru
# $api::GetProductInfo(dwOSMajorVersion, dwOSMinorVersion, dwSpMajorVersion, dwSpMinorVersion, pdwReturnedProductType)

#uselib "KERNEL32.dll"
#func global GetProductInfo "GetProductInfo" sptr, sptr, sptr, sptr, sptr
; GetProductInfo dwOSMajorVersion, dwOSMinorVersion, dwSpMajorVersion, dwSpMinorVersion, pdwReturnedProductType   ; 戻り値は stat
; dwOSMajorVersion : DWORD -> "sptr"
; dwOSMinorVersion : DWORD -> "sptr"
; dwSpMajorVersion : DWORD -> "sptr"
; dwSpMinorVersion : DWORD -> "sptr"
; pdwReturnedProductType : OS_PRODUCT_TYPE* 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 "KERNEL32.dll"
#cfunc global GetProductInfo "GetProductInfo" int, int, int, int, int
; res = GetProductInfo(dwOSMajorVersion, dwOSMinorVersion, dwSpMajorVersion, dwSpMinorVersion, pdwReturnedProductType)
; dwOSMajorVersion : DWORD -> "int"
; dwOSMinorVersion : DWORD -> "int"
; dwSpMajorVersion : DWORD -> "int"
; dwSpMinorVersion : DWORD -> "int"
; pdwReturnedProductType : OS_PRODUCT_TYPE* out -> "int"

; BOOL GetProductInfo(DWORD dwOSMajorVersion, DWORD dwOSMinorVersion, DWORD dwSpMajorVersion, DWORD dwSpMinorVersion, OS_PRODUCT_TYPE* pdwReturnedProductType)
#uselib "KERNEL32.dll"
#cfunc global GetProductInfo "GetProductInfo" int, int, int, int, int
; res = GetProductInfo(dwOSMajorVersion, dwOSMinorVersion, dwSpMajorVersion, dwSpMinorVersion, pdwReturnedProductType)
; dwOSMajorVersion : DWORD -> "int"
; dwOSMinorVersion : DWORD -> "int"
; dwSpMajorVersion : DWORD -> "int"
; dwSpMinorVersion : DWORD -> "int"
; pdwReturnedProductType : OS_PRODUCT_TYPE* out -> "int"

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

var (
	kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
	procGetProductInfo = kernel32.NewProc("GetProductInfo")
)

// dwOSMajorVersion (DWORD), dwOSMinorVersion (DWORD), dwSpMajorVersion (DWORD), dwSpMinorVersion (DWORD), pdwReturnedProductType (OS_PRODUCT_TYPE* out)
r1, _, err := procGetProductInfo.Call(
	uintptr(dwOSMajorVersion),
	uintptr(dwOSMinorVersion),
	uintptr(dwSpMajorVersion),
	uintptr(dwSpMinorVersion),
	uintptr(pdwReturnedProductType),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function GetProductInfo(
  dwOSMajorVersion: DWORD;   // DWORD
  dwOSMinorVersion: DWORD;   // DWORD
  dwSpMajorVersion: DWORD;   // DWORD
  dwSpMinorVersion: DWORD;   // DWORD
  pdwReturnedProductType: Pointer   // OS_PRODUCT_TYPE* out
): BOOL; stdcall;
  external 'KERNEL32.dll' name 'GetProductInfo';

result := DllCall("KERNEL32\GetProductInfo"
    , "UInt", dwOSMajorVersion   ; DWORD
    , "UInt", dwOSMinorVersion   ; DWORD
    , "UInt", dwSpMajorVersion   ; DWORD
    , "UInt", dwSpMinorVersion   ; DWORD
    , "Ptr", pdwReturnedProductType   ; OS_PRODUCT_TYPE* out
    , "Int")   ; return: BOOL

●GetProductInfo(dwOSMajorVersion, dwOSMinorVersion, dwSpMajorVersion, dwSpMinorVersion, pdwReturnedProductType) = DLL("KERNEL32.dll", "bool GetProductInfo(dword, dword, dword, dword, void*)")
# 呼び出し: GetProductInfo(dwOSMajorVersion, dwOSMinorVersion, dwSpMajorVersion, dwSpMinorVersion, pdwReturnedProductType)
# dwOSMajorVersion : DWORD -> "dword"
# dwOSMinorVersion : DWORD -> "dword"
# dwSpMajorVersion : DWORD -> "dword"
# dwSpMinorVersion : DWORD -> "dword"
# pdwReturnedProductType : OS_PRODUCT_TYPE* 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)。