GetClusterGroupState

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

CLUSTER_GROUP_STATE GetClusterGroupState(
    HGROUP hGroup,
    LPWSTR lpszNodeName,   // optional
    DWORD* lpcchNodeName   // optional
);

<DllImport("CLUSAPI.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function GetClusterGroupState(
    hGroup As IntPtr,   ' HGROUP
    <MarshalAs(UnmanagedType.LPWStr)> lpszNodeName As System.Text.StringBuilder,   ' LPWSTR optional, out
    lpcchNodeName As IntPtr   ' DWORD* optional, in/out
) As Integer
End Function

' hGroup : HGROUP
' lpszNodeName : LPWSTR optional, out
' lpcchNodeName : DWORD* optional, in/out
Declare PtrSafe Function GetClusterGroupState Lib "clusapi" ( _
    ByVal hGroup As LongPtr, _
    ByVal lpszNodeName As LongPtr, _
    ByVal lpcchNodeName As LongPtr) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

GetClusterGroupState = ctypes.windll.clusapi.GetClusterGroupState
GetClusterGroupState.restype = ctypes.c_int
GetClusterGroupState.argtypes = [
    ctypes.c_ssize_t,  # hGroup : HGROUP
    wintypes.LPWSTR,  # lpszNodeName : LPWSTR optional, out
    ctypes.POINTER(wintypes.DWORD),  # lpcchNodeName : DWORD* optional, in/out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('CLUSAPI.dll')
GetClusterGroupState = Fiddle::Function.new(
  lib['GetClusterGroupState'],
  [
    Fiddle::TYPE_INTPTR_T,  # hGroup : HGROUP
    Fiddle::TYPE_VOIDP,  # lpszNodeName : LPWSTR optional, out
    Fiddle::TYPE_VOIDP,  # lpcchNodeName : DWORD* optional, in/out
  ],
  Fiddle::TYPE_INT)

#[link(name = "clusapi")]
extern "system" {
    fn GetClusterGroupState(
        hGroup: isize,  // HGROUP
        lpszNodeName: *mut u16,  // LPWSTR optional, out
        lpcchNodeName: *mut u32  // DWORD* optional, in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("CLUSAPI.dll", SetLastError = true)]
public static extern int GetClusterGroupState(IntPtr hGroup, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder lpszNodeName, IntPtr lpcchNodeName);
"@
$api = Add-Type -MemberDefinition $sig -Name 'CLUSAPI_GetClusterGroupState' -Namespace Win32 -PassThru
# $api::GetClusterGroupState(hGroup, lpszNodeName, lpcchNodeName)

#uselib "CLUSAPI.dll"
#func global GetClusterGroupState "GetClusterGroupState" sptr, sptr, sptr
; GetClusterGroupState hGroup, varptr(lpszNodeName), varptr(lpcchNodeName)   ; 戻り値は stat
; hGroup : HGROUP -> "sptr"
; lpszNodeName : LPWSTR optional, out -> "sptr"
; lpcchNodeName : DWORD* optional, 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。

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

var (
	clusapi = windows.NewLazySystemDLL("CLUSAPI.dll")
	procGetClusterGroupState = clusapi.NewProc("GetClusterGroupState")
)

// hGroup (HGROUP), lpszNodeName (LPWSTR optional, out), lpcchNodeName (DWORD* optional, in/out)
r1, _, err := procGetClusterGroupState.Call(
	uintptr(hGroup),
	uintptr(lpszNodeName),
	uintptr(lpcchNodeName),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // CLUSTER_GROUP_STATE

function GetClusterGroupState(
  hGroup: NativeInt;   // HGROUP
  lpszNodeName: PWideChar;   // LPWSTR optional, out
  lpcchNodeName: Pointer   // DWORD* optional, in/out
): Integer; stdcall;
  external 'CLUSAPI.dll' name 'GetClusterGroupState';

result := DllCall("CLUSAPI\GetClusterGroupState"
    , "Ptr", hGroup   ; HGROUP
    , "Ptr", lpszNodeName   ; LPWSTR optional, out
    , "Ptr", lpcchNodeName   ; DWORD* optional, in/out
    , "Int")   ; return: CLUSTER_GROUP_STATE

●GetClusterGroupState(hGroup, lpszNodeName, lpcchNodeName) = DLL("CLUSAPI.dll", "int GetClusterGroupState(int, char*, void*)")
# 呼び出し: GetClusterGroupState(hGroup, lpszNodeName, lpcchNodeName)
# hGroup : HGROUP -> "int"
# lpszNodeName : LPWSTR optional, out -> "char*"
# lpcchNodeName : DWORD* optional, 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)。

const std = @import("std");

extern "clusapi" fn GetClusterGroupState(
    hGroup: isize, // HGROUP
    lpszNodeName: [*c]u16, // LPWSTR optional, out
    lpcchNodeName: [*c]u32 // DWORD* optional, in/out
) callconv(std.os.windows.WINAPI) i32;

proc GetClusterGroupState(
    hGroup: int,  # HGROUP
    lpszNodeName: ptr uint16,  # LPWSTR optional, out
    lpcchNodeName: ptr uint32  # DWORD* optional, in/out
): int32 {.importc: "GetClusterGroupState", stdcall, dynlib: "CLUSAPI.dll".}

pragma(lib, "clusapi");
extern(Windows)
int GetClusterGroupState(
    ptrdiff_t hGroup,   // HGROUP
    wchar* lpszNodeName,   // LPWSTR optional, out
    uint* lpcchNodeName   // DWORD* optional, in/out
);

ccall((:GetClusterGroupState, "CLUSAPI.dll"), stdcall, Int32,
      (Int, Ptr{UInt16}, Ptr{UInt32}),
      hGroup, lpszNodeName, lpcchNodeName)
# hGroup : HGROUP -> Int
# lpszNodeName : LPWSTR optional, out -> Ptr{UInt16}
# lpcchNodeName : DWORD* optional, in/out -> Ptr{UInt32}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t GetClusterGroupState(
    intptr_t hGroup,
    uint16_t* lpszNodeName,
    uint32_t* lpcchNodeName);
]]
local clusapi = ffi.load("clusapi")
-- clusapi.GetClusterGroupState(hGroup, lpszNodeName, lpcchNodeName)
-- hGroup : HGROUP
-- lpszNodeName : LPWSTR optional, out
-- lpcchNodeName : DWORD* optional, in/out
-- 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。

const koffi = require('koffi');
const lib = koffi.load('CLUSAPI.dll');
const GetClusterGroupState = lib.func('__stdcall', 'GetClusterGroupState', 'int32_t', ['intptr_t', 'uint16_t *', 'uint32_t *']);
// GetClusterGroupState(hGroup, lpszNodeName, lpcchNodeName)
// hGroup : HGROUP -> 'intptr_t'
// lpszNodeName : LPWSTR optional, out -> 'uint16_t *'
// lpcchNodeName : DWORD* optional, in/out -> 'uint32_t *'
// 出力ポインタは koffi.out(...) で包む。構造体は koffi.struct で定義。

const lib = Deno.dlopen("CLUSAPI.dll", {
  GetClusterGroupState: { parameters: ["isize", "buffer", "pointer"], result: "i32" },
});
// lib.symbols.GetClusterGroupState(hGroup, lpszNodeName, lpcchNodeName)
// hGroup : HGROUP -> "isize"
// lpszNodeName : LPWSTR optional, out -> "buffer"
// lpcchNodeName : DWORD* optional, in/out -> "pointer"
// 文字列引数は "buffer"(NUL 終端のバイト列を Uint8Array で渡す)。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。

<?php
$ffi = FFI::cdef(<<<C
int32_t GetClusterGroupState(
    intptr_t hGroup,
    uint16_t* lpszNodeName,
    uint32_t* lpcchNodeName);
C, "CLUSAPI.dll");
// $ffi->GetClusterGroupState(hGroup, lpszNodeName, lpcchNodeName);
// hGroup : HGROUP
// lpszNodeName : LPWSTR optional, out
// lpcchNodeName : DWORD* optional, in/out
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。

import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;

public interface Clusapi extends StdCallLibrary {
    Clusapi INSTANCE = Native.load("clusapi", Clusapi.class);
    int GetClusterGroupState(
        long hGroup,   // HGROUP
        char[] lpszNodeName,   // LPWSTR optional, out
        IntByReference lpcchNodeName   // DWORD* optional, in/out
    );
}

@[Link("clusapi")]
lib LibCLUSAPI
  fun GetClusterGroupState = GetClusterGroupState(
    hGroup : LibC::SSizeT,   # HGROUP
    lpszNodeName : UInt16*,   # LPWSTR optional, out
    lpcchNodeName : UInt32*   # DWORD* optional, in/out
  ) : Int32
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。

import 'dart:ffi';
import 'package:ffi/ffi.dart';

typedef GetClusterGroupStateNative = Int32 Function(IntPtr, Pointer<Utf16>, Pointer<Uint32>);
typedef GetClusterGroupStateDart = int Function(int, Pointer<Utf16>, Pointer<Uint32>);
final GetClusterGroupState = DynamicLibrary.open('CLUSAPI.dll')
    .lookupFunction<GetClusterGroupStateNative, GetClusterGroupStateDart>('GetClusterGroupState');
// hGroup : HGROUP -> IntPtr
// lpszNodeName : LPWSTR optional, out -> Pointer<Utf16>
// lpcchNodeName : DWORD* optional, in/out -> Pointer<Uint32>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function GetClusterGroupState(
  hGroup: NativeInt;   // HGROUP
  lpszNodeName: PWideChar;   // LPWSTR optional, out
  lpcchNodeName: Pointer   // DWORD* optional, in/out
): Integer; stdcall;
  external 'CLUSAPI.dll' name 'GetClusterGroupState';

import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "GetClusterGroupState"
  c_GetClusterGroupState :: CIntPtr -> CWString -> Ptr Word32 -> IO Int32
-- hGroup : HGROUP -> CIntPtr
-- lpszNodeName : LPWSTR optional, out -> CWString
-- lpcchNodeName : DWORD* optional, in/out -> Ptr Word32
-- 要 GHC(Windows)。stdcall は x64 では ccall として扱われる。ブロックする API は safe 呼び出し推奨。

open Ctypes
open Foreign

let getclustergroupstate =
  foreign "GetClusterGroupState"
    (intptr_t @-> (ptr uint16_t) @-> (ptr uint32_t) @-> returning int32_t)
(* hGroup : HGROUP -> intptr_t *)
(* lpszNodeName : LPWSTR optional, out -> (ptr uint16_t) *)
(* lpcchNodeName : DWORD* optional, in/out -> (ptr uint32_t) *)
(* foreign は cdecl 前提。x64 Windows では WINAPI と一致。構造体は ctypes structure を定義のこと。 *)

(cffi:define-foreign-library clusapi (t "CLUSAPI.dll"))
(cffi:use-foreign-library clusapi)

(cffi:defcfun ("GetClusterGroupState" get-cluster-group-state :convention :stdcall) :int32
  (h-group :int64)   ; HGROUP
  (lpsz-node-name :pointer)   ; LPWSTR optional, out
  (lpcch-node-name :pointer))   ; DWORD* optional, in/out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $GetClusterGroupState = Win32::API::More->new('CLUSAPI',
    'int GetClusterGroupState(LPARAM hGroup, LPWSTR lpszNodeName, LPVOID lpcchNodeName)');
# my $ret = $GetClusterGroupState->Call($hGroup, $lpszNodeName, $lpcchNodeName);
# hGroup : HGROUP -> LPARAM
# lpszNodeName : LPWSTR optional, out -> LPWSTR
# lpcchNodeName : DWORD* optional, in/out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。