ClusterNodeEnumEx

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

DWORD ClusterNodeEnumEx(
    HNODEENUMEX hNodeEnum,
    DWORD dwIndex,
    CLUSTER_ENUM_ITEM* pItem,
    DWORD* cbItem
);

<DllImport("CLUSAPI.dll", ExactSpelling:=True)>
Public Shared Function ClusterNodeEnumEx(
    hNodeEnum As IntPtr,   ' HNODEENUMEX
    dwIndex As UInteger,   ' DWORD
    pItem As IntPtr,   ' CLUSTER_ENUM_ITEM* in/out
    ByRef cbItem As UInteger   ' DWORD* in/out
) As UInteger
End Function

' hNodeEnum : HNODEENUMEX
' dwIndex : DWORD
' pItem : CLUSTER_ENUM_ITEM* in/out
' cbItem : DWORD* in/out
Declare PtrSafe Function ClusterNodeEnumEx Lib "clusapi" ( _
    ByVal hNodeEnum As LongPtr, _
    ByVal dwIndex As Long, _
    ByVal pItem As LongPtr, _
    ByRef cbItem 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

ClusterNodeEnumEx = ctypes.windll.clusapi.ClusterNodeEnumEx
ClusterNodeEnumEx.restype = wintypes.DWORD
ClusterNodeEnumEx.argtypes = [
    ctypes.c_ssize_t,  # hNodeEnum : HNODEENUMEX
    wintypes.DWORD,  # dwIndex : DWORD
    ctypes.c_void_p,  # pItem : CLUSTER_ENUM_ITEM* in/out
    ctypes.POINTER(wintypes.DWORD),  # cbItem : DWORD* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('CLUSAPI.dll')
ClusterNodeEnumEx = Fiddle::Function.new(
  lib['ClusterNodeEnumEx'],
  [
    Fiddle::TYPE_INTPTR_T,  # hNodeEnum : HNODEENUMEX
    -Fiddle::TYPE_INT,  # dwIndex : DWORD
    Fiddle::TYPE_VOIDP,  # pItem : CLUSTER_ENUM_ITEM* in/out
    Fiddle::TYPE_VOIDP,  # cbItem : DWORD* in/out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "clusapi")]
extern "system" {
    fn ClusterNodeEnumEx(
        hNodeEnum: isize,  // HNODEENUMEX
        dwIndex: u32,  // DWORD
        pItem: *mut CLUSTER_ENUM_ITEM,  // CLUSTER_ENUM_ITEM* in/out
        cbItem: *mut u32  // DWORD* in/out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("CLUSAPI.dll")]
public static extern uint ClusterNodeEnumEx(IntPtr hNodeEnum, uint dwIndex, IntPtr pItem, ref uint cbItem);
"@
$api = Add-Type -MemberDefinition $sig -Name 'CLUSAPI_ClusterNodeEnumEx' -Namespace Win32 -PassThru
# $api::ClusterNodeEnumEx(hNodeEnum, dwIndex, pItem, cbItem)

#uselib "CLUSAPI.dll"
#func global ClusterNodeEnumEx "ClusterNodeEnumEx" sptr, sptr, sptr, sptr
; ClusterNodeEnumEx hNodeEnum, dwIndex, varptr(pItem), varptr(cbItem)   ; 戻り値は stat
; hNodeEnum : HNODEENUMEX -> "sptr"
; dwIndex : DWORD -> "sptr"
; pItem : CLUSTER_ENUM_ITEM* in/out -> "sptr"
; cbItem : DWORD* in/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 "CLUSAPI.dll"
#cfunc global ClusterNodeEnumEx "ClusterNodeEnumEx" sptr, int, var, var
; res = ClusterNodeEnumEx(hNodeEnum, dwIndex, pItem, cbItem)
; hNodeEnum : HNODEENUMEX -> "sptr"
; dwIndex : DWORD -> "int"
; pItem : CLUSTER_ENUM_ITEM* in/out -> "var"
; cbItem : DWORD* in/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。

; DWORD ClusterNodeEnumEx(HNODEENUMEX hNodeEnum, DWORD dwIndex, CLUSTER_ENUM_ITEM* pItem, DWORD* cbItem)
#uselib "CLUSAPI.dll"
#cfunc global ClusterNodeEnumEx "ClusterNodeEnumEx" intptr, int, var, var
; res = ClusterNodeEnumEx(hNodeEnum, dwIndex, pItem, cbItem)
; hNodeEnum : HNODEENUMEX -> "intptr"
; dwIndex : DWORD -> "int"
; pItem : CLUSTER_ENUM_ITEM* in/out -> "var"
; cbItem : DWORD* in/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 (
	clusapi = windows.NewLazySystemDLL("CLUSAPI.dll")
	procClusterNodeEnumEx = clusapi.NewProc("ClusterNodeEnumEx")
)

// hNodeEnum (HNODEENUMEX), dwIndex (DWORD), pItem (CLUSTER_ENUM_ITEM* in/out), cbItem (DWORD* in/out)
r1, _, err := procClusterNodeEnumEx.Call(
	uintptr(hNodeEnum),
	uintptr(dwIndex),
	uintptr(pItem),
	uintptr(cbItem),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function ClusterNodeEnumEx(
  hNodeEnum: NativeInt;   // HNODEENUMEX
  dwIndex: DWORD;   // DWORD
  pItem: Pointer;   // CLUSTER_ENUM_ITEM* in/out
  cbItem: Pointer   // DWORD* in/out
): DWORD; stdcall;
  external 'CLUSAPI.dll' name 'ClusterNodeEnumEx';

result := DllCall("CLUSAPI\ClusterNodeEnumEx"
    , "Ptr", hNodeEnum   ; HNODEENUMEX
    , "UInt", dwIndex   ; DWORD
    , "Ptr", pItem   ; CLUSTER_ENUM_ITEM* in/out
    , "Ptr", cbItem   ; DWORD* in/out
    , "UInt")   ; return: DWORD

●ClusterNodeEnumEx(hNodeEnum, dwIndex, pItem, cbItem) = DLL("CLUSAPI.dll", "dword ClusterNodeEnumEx(int, dword, void*, void*)")
# 呼び出し: ClusterNodeEnumEx(hNodeEnum, dwIndex, pItem, cbItem)
# hNodeEnum : HNODEENUMEX -> "int"
# dwIndex : DWORD -> "dword"
# pItem : CLUSTER_ENUM_ITEM* in/out -> "void*"
# cbItem : DWORD* in/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)。