ClusterGroupOpenEnum

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

HGROUPENUM ClusterGroupOpenEnum(
    HGROUP hGroup,
    DWORD dwType
);

<DllImport("CLUSAPI.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function ClusterGroupOpenEnum(
    hGroup As IntPtr,   ' HGROUP
    dwType As UInteger   ' DWORD
) As IntPtr
End Function

' hGroup : HGROUP
' dwType : DWORD
Declare PtrSafe Function ClusterGroupOpenEnum Lib "clusapi" ( _
    ByVal hGroup As LongPtr, _
    ByVal dwType 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

ClusterGroupOpenEnum = ctypes.windll.clusapi.ClusterGroupOpenEnum
ClusterGroupOpenEnum.restype = ctypes.c_ssize_t
ClusterGroupOpenEnum.argtypes = [
    ctypes.c_ssize_t,  # hGroup : HGROUP
    wintypes.DWORD,  # dwType : DWORD
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('CLUSAPI.dll')
ClusterGroupOpenEnum = Fiddle::Function.new(
  lib['ClusterGroupOpenEnum'],
  [
    Fiddle::TYPE_INTPTR_T,  # hGroup : HGROUP
    -Fiddle::TYPE_INT,  # dwType : DWORD
  ],
  Fiddle::TYPE_INTPTR_T)

#[link(name = "clusapi")]
extern "system" {
    fn ClusterGroupOpenEnum(
        hGroup: isize,  // HGROUP
        dwType: u32  // DWORD
    ) -> isize;
}
// crates: windows-sys provides ready-made bindings for this API.

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

#uselib "CLUSAPI.dll"
#func global ClusterGroupOpenEnum "ClusterGroupOpenEnum" sptr, sptr
; ClusterGroupOpenEnum hGroup, dwType   ; 戻り値は stat
; hGroup : HGROUP -> "sptr"
; dwType : 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 ClusterGroupOpenEnum "ClusterGroupOpenEnum" sptr, int
; res = ClusterGroupOpenEnum(hGroup, dwType)
; hGroup : HGROUP -> "sptr"
; dwType : DWORD -> "int"

; HGROUPENUM ClusterGroupOpenEnum(HGROUP hGroup, DWORD dwType)
#uselib "CLUSAPI.dll"
#cfunc global ClusterGroupOpenEnum "ClusterGroupOpenEnum" intptr, int
; res = ClusterGroupOpenEnum(hGroup, dwType)
; hGroup : HGROUP -> "intptr"
; dwType : DWORD -> "int"

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

var (
	clusapi = windows.NewLazySystemDLL("CLUSAPI.dll")
	procClusterGroupOpenEnum = clusapi.NewProc("ClusterGroupOpenEnum")
)

// hGroup (HGROUP), dwType (DWORD)
r1, _, err := procClusterGroupOpenEnum.Call(
	uintptr(hGroup),
	uintptr(dwType),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HGROUPENUM

function ClusterGroupOpenEnum(
  hGroup: NativeInt;   // HGROUP
  dwType: DWORD   // DWORD
): NativeInt; stdcall;
  external 'CLUSAPI.dll' name 'ClusterGroupOpenEnum';

result := DllCall("CLUSAPI\ClusterGroupOpenEnum"
    , "Ptr", hGroup   ; HGROUP
    , "UInt", dwType   ; DWORD
    , "Ptr")   ; return: HGROUPENUM

●ClusterGroupOpenEnum(hGroup, dwType) = DLL("CLUSAPI.dll", "int ClusterGroupOpenEnum(int, dword)")
# 呼び出し: ClusterGroupOpenEnum(hGroup, dwType)
# hGroup : HGROUP -> "int"
# dwType : 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)。