GetClusterKey

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

HKEY GetClusterKey(
    HCLUSTER hCluster,
    DWORD samDesired
);

<DllImport("CLUSAPI.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function GetClusterKey(
    hCluster As IntPtr,   ' HCLUSTER
    samDesired As UInteger   ' DWORD
) As IntPtr
End Function

' hCluster : HCLUSTER
' samDesired : DWORD
Declare PtrSafe Function GetClusterKey Lib "clusapi" ( _
    ByVal hCluster As LongPtr, _
    ByVal samDesired As Long) As LongPtr
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

GetClusterKey = ctypes.windll.clusapi.GetClusterKey
GetClusterKey.restype = ctypes.c_void_p
GetClusterKey.argtypes = [
    ctypes.c_ssize_t,  # hCluster : HCLUSTER
    wintypes.DWORD,  # samDesired : DWORD
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('CLUSAPI.dll')
GetClusterKey = Fiddle::Function.new(
  lib['GetClusterKey'],
  [
    Fiddle::TYPE_INTPTR_T,  # hCluster : HCLUSTER
    -Fiddle::TYPE_INT,  # samDesired : DWORD
  ],
  Fiddle::TYPE_VOIDP)

#[link(name = "clusapi")]
extern "system" {
    fn GetClusterKey(
        hCluster: isize,  // HCLUSTER
        samDesired: u32  // DWORD
    ) -> *mut core::ffi::c_void;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("CLUSAPI.dll", SetLastError = true)]
public static extern IntPtr GetClusterKey(IntPtr hCluster, uint samDesired);
"@
$api = Add-Type -MemberDefinition $sig -Name 'CLUSAPI_GetClusterKey' -Namespace Win32 -PassThru
# $api::GetClusterKey(hCluster, samDesired)

#uselib "CLUSAPI.dll"
#func global GetClusterKey "GetClusterKey" sptr, sptr
; GetClusterKey hCluster, samDesired   ; 戻り値は stat
; hCluster : HCLUSTER -> "sptr"
; samDesired : DWORD -> "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 "CLUSAPI.dll"
#cfunc global GetClusterKey "GetClusterKey" sptr, int
; res = GetClusterKey(hCluster, samDesired)
; hCluster : HCLUSTER -> "sptr"
; samDesired : DWORD -> "int"

; HKEY GetClusterKey(HCLUSTER hCluster, DWORD samDesired)
#uselib "CLUSAPI.dll"
#cfunc global GetClusterKey "GetClusterKey" intptr, int
; res = GetClusterKey(hCluster, samDesired)
; hCluster : HCLUSTER -> "intptr"
; samDesired : DWORD -> "int"

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

var (
	clusapi = windows.NewLazySystemDLL("CLUSAPI.dll")
	procGetClusterKey = clusapi.NewProc("GetClusterKey")
)

// hCluster (HCLUSTER), samDesired (DWORD)
r1, _, err := procGetClusterKey.Call(
	uintptr(hCluster),
	uintptr(samDesired),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HKEY

function GetClusterKey(
  hCluster: NativeInt;   // HCLUSTER
  samDesired: DWORD   // DWORD
): THandle; stdcall;
  external 'CLUSAPI.dll' name 'GetClusterKey';

result := DllCall("CLUSAPI\GetClusterKey"
    , "Ptr", hCluster   ; HCLUSTER
    , "UInt", samDesired   ; DWORD
    , "Ptr")   ; return: HKEY

●GetClusterKey(hCluster, samDesired) = DLL("CLUSAPI.dll", "void* GetClusterKey(int, dword)")
# 呼び出し: GetClusterKey(hCluster, samDesired)
# hCluster : HCLUSTER -> "int"
# samDesired : DWORD -> "dword"
# 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)。