CreateClusterAvailabilitySet

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

HGROUPSET CreateClusterAvailabilitySet(
    HCLUSTER hCluster,
    LPCWSTR lpAvailabilitySetName,
    CLUSTER_AVAILABILITY_SET_CONFIG* pAvailabilitySetConfig
);

<DllImport("CLUSAPI.dll", ExactSpelling:=True)>
Public Shared Function CreateClusterAvailabilitySet(
    hCluster As IntPtr,   ' HCLUSTER
    <MarshalAs(UnmanagedType.LPWStr)> lpAvailabilitySetName As String,   ' LPCWSTR
    pAvailabilitySetConfig As IntPtr   ' CLUSTER_AVAILABILITY_SET_CONFIG*
) As IntPtr
End Function

' hCluster : HCLUSTER
' lpAvailabilitySetName : LPCWSTR
' pAvailabilitySetConfig : CLUSTER_AVAILABILITY_SET_CONFIG*
Declare PtrSafe Function CreateClusterAvailabilitySet Lib "clusapi" ( _
    ByVal hCluster As LongPtr, _
    ByVal lpAvailabilitySetName As LongPtr, _
    ByVal pAvailabilitySetConfig As LongPtr) As LongPtr
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

CreateClusterAvailabilitySet = ctypes.windll.clusapi.CreateClusterAvailabilitySet
CreateClusterAvailabilitySet.restype = ctypes.c_ssize_t
CreateClusterAvailabilitySet.argtypes = [
    ctypes.c_ssize_t,  # hCluster : HCLUSTER
    wintypes.LPCWSTR,  # lpAvailabilitySetName : LPCWSTR
    ctypes.c_void_p,  # pAvailabilitySetConfig : CLUSTER_AVAILABILITY_SET_CONFIG*
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('CLUSAPI.dll')
CreateClusterAvailabilitySet = Fiddle::Function.new(
  lib['CreateClusterAvailabilitySet'],
  [
    Fiddle::TYPE_INTPTR_T,  # hCluster : HCLUSTER
    Fiddle::TYPE_VOIDP,  # lpAvailabilitySetName : LPCWSTR
    Fiddle::TYPE_VOIDP,  # pAvailabilitySetConfig : CLUSTER_AVAILABILITY_SET_CONFIG*
  ],
  Fiddle::TYPE_INTPTR_T)

#[link(name = "clusapi")]
extern "system" {
    fn CreateClusterAvailabilitySet(
        hCluster: isize,  // HCLUSTER
        lpAvailabilitySetName: *const u16,  // LPCWSTR
        pAvailabilitySetConfig: *mut CLUSTER_AVAILABILITY_SET_CONFIG  // CLUSTER_AVAILABILITY_SET_CONFIG*
    ) -> isize;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("CLUSAPI.dll")]
public static extern IntPtr CreateClusterAvailabilitySet(IntPtr hCluster, [MarshalAs(UnmanagedType.LPWStr)] string lpAvailabilitySetName, IntPtr pAvailabilitySetConfig);
"@
$api = Add-Type -MemberDefinition $sig -Name 'CLUSAPI_CreateClusterAvailabilitySet' -Namespace Win32 -PassThru
# $api::CreateClusterAvailabilitySet(hCluster, lpAvailabilitySetName, pAvailabilitySetConfig)

#uselib "CLUSAPI.dll"
#func global CreateClusterAvailabilitySet "CreateClusterAvailabilitySet" sptr, sptr, sptr
; CreateClusterAvailabilitySet hCluster, lpAvailabilitySetName, varptr(pAvailabilitySetConfig)   ; 戻り値は stat
; hCluster : HCLUSTER -> "sptr"
; lpAvailabilitySetName : LPCWSTR -> "sptr"
; pAvailabilitySetConfig : CLUSTER_AVAILABILITY_SET_CONFIG* -> "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 CreateClusterAvailabilitySet "CreateClusterAvailabilitySet" sptr, wstr, var
; res = CreateClusterAvailabilitySet(hCluster, lpAvailabilitySetName, pAvailabilitySetConfig)
; hCluster : HCLUSTER -> "sptr"
; lpAvailabilitySetName : LPCWSTR -> "wstr"
; pAvailabilitySetConfig : CLUSTER_AVAILABILITY_SET_CONFIG* -> "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。

; HGROUPSET CreateClusterAvailabilitySet(HCLUSTER hCluster, LPCWSTR lpAvailabilitySetName, CLUSTER_AVAILABILITY_SET_CONFIG* pAvailabilitySetConfig)
#uselib "CLUSAPI.dll"
#cfunc global CreateClusterAvailabilitySet "CreateClusterAvailabilitySet" intptr, wstr, var
; res = CreateClusterAvailabilitySet(hCluster, lpAvailabilitySetName, pAvailabilitySetConfig)
; hCluster : HCLUSTER -> "intptr"
; lpAvailabilitySetName : LPCWSTR -> "wstr"
; pAvailabilitySetConfig : CLUSTER_AVAILABILITY_SET_CONFIG* -> "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")
	procCreateClusterAvailabilitySet = clusapi.NewProc("CreateClusterAvailabilitySet")
)

// hCluster (HCLUSTER), lpAvailabilitySetName (LPCWSTR), pAvailabilitySetConfig (CLUSTER_AVAILABILITY_SET_CONFIG*)
r1, _, err := procCreateClusterAvailabilitySet.Call(
	uintptr(hCluster),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpAvailabilitySetName))),
	uintptr(pAvailabilitySetConfig),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HGROUPSET

function CreateClusterAvailabilitySet(
  hCluster: NativeInt;   // HCLUSTER
  lpAvailabilitySetName: PWideChar;   // LPCWSTR
  pAvailabilitySetConfig: Pointer   // CLUSTER_AVAILABILITY_SET_CONFIG*
): NativeInt; stdcall;
  external 'CLUSAPI.dll' name 'CreateClusterAvailabilitySet';

result := DllCall("CLUSAPI\CreateClusterAvailabilitySet"
    , "Ptr", hCluster   ; HCLUSTER
    , "WStr", lpAvailabilitySetName   ; LPCWSTR
    , "Ptr", pAvailabilitySetConfig   ; CLUSTER_AVAILABILITY_SET_CONFIG*
    , "Ptr")   ; return: HGROUPSET

●CreateClusterAvailabilitySet(hCluster, lpAvailabilitySetName, pAvailabilitySetConfig) = DLL("CLUSAPI.dll", "int CreateClusterAvailabilitySet(int, char*, void*)")
# 呼び出し: CreateClusterAvailabilitySet(hCluster, lpAvailabilitySetName, pAvailabilitySetConfig)
# hCluster : HCLUSTER -> "int"
# lpAvailabilitySetName : LPCWSTR -> "char*"
# pAvailabilitySetConfig : CLUSTER_AVAILABILITY_SET_CONFIG* -> "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)。