GetClusterNetInterface

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

DWORD GetClusterNetInterface(
    HCLUSTER hCluster,
    LPCWSTR lpszNodeName,
    LPCWSTR lpszNetworkName,
    LPWSTR lpszInterfaceName,
    DWORD* lpcchInterfaceName
);

<DllImport("CLUSAPI.dll", ExactSpelling:=True)>
Public Shared Function GetClusterNetInterface(
    hCluster As IntPtr,   ' HCLUSTER
    <MarshalAs(UnmanagedType.LPWStr)> lpszNodeName As String,   ' LPCWSTR
    <MarshalAs(UnmanagedType.LPWStr)> lpszNetworkName As String,   ' LPCWSTR
    <MarshalAs(UnmanagedType.LPWStr)> lpszInterfaceName As System.Text.StringBuilder,   ' LPWSTR out
    ByRef lpcchInterfaceName As UInteger   ' DWORD* in/out
) As UInteger
End Function

' hCluster : HCLUSTER
' lpszNodeName : LPCWSTR
' lpszNetworkName : LPCWSTR
' lpszInterfaceName : LPWSTR out
' lpcchInterfaceName : DWORD* in/out
Declare PtrSafe Function GetClusterNetInterface Lib "clusapi" ( _
    ByVal hCluster As LongPtr, _
    ByVal lpszNodeName As LongPtr, _
    ByVal lpszNetworkName As LongPtr, _
    ByVal lpszInterfaceName As LongPtr, _
    ByRef lpcchInterfaceName 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

GetClusterNetInterface = ctypes.windll.clusapi.GetClusterNetInterface
GetClusterNetInterface.restype = wintypes.DWORD
GetClusterNetInterface.argtypes = [
    ctypes.c_ssize_t,  # hCluster : HCLUSTER
    wintypes.LPCWSTR,  # lpszNodeName : LPCWSTR
    wintypes.LPCWSTR,  # lpszNetworkName : LPCWSTR
    wintypes.LPWSTR,  # lpszInterfaceName : LPWSTR out
    ctypes.POINTER(wintypes.DWORD),  # lpcchInterfaceName : DWORD* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('CLUSAPI.dll')
GetClusterNetInterface = Fiddle::Function.new(
  lib['GetClusterNetInterface'],
  [
    Fiddle::TYPE_INTPTR_T,  # hCluster : HCLUSTER
    Fiddle::TYPE_VOIDP,  # lpszNodeName : LPCWSTR
    Fiddle::TYPE_VOIDP,  # lpszNetworkName : LPCWSTR
    Fiddle::TYPE_VOIDP,  # lpszInterfaceName : LPWSTR out
    Fiddle::TYPE_VOIDP,  # lpcchInterfaceName : DWORD* in/out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "clusapi")]
extern "system" {
    fn GetClusterNetInterface(
        hCluster: isize,  // HCLUSTER
        lpszNodeName: *const u16,  // LPCWSTR
        lpszNetworkName: *const u16,  // LPCWSTR
        lpszInterfaceName: *mut u16,  // LPWSTR out
        lpcchInterfaceName: *mut u32  // DWORD* in/out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("CLUSAPI.dll")]
public static extern uint GetClusterNetInterface(IntPtr hCluster, [MarshalAs(UnmanagedType.LPWStr)] string lpszNodeName, [MarshalAs(UnmanagedType.LPWStr)] string lpszNetworkName, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder lpszInterfaceName, ref uint lpcchInterfaceName);
"@
$api = Add-Type -MemberDefinition $sig -Name 'CLUSAPI_GetClusterNetInterface' -Namespace Win32 -PassThru
# $api::GetClusterNetInterface(hCluster, lpszNodeName, lpszNetworkName, lpszInterfaceName, lpcchInterfaceName)

#uselib "CLUSAPI.dll"
#func global GetClusterNetInterface "GetClusterNetInterface" sptr, sptr, sptr, sptr, sptr
; GetClusterNetInterface hCluster, lpszNodeName, lpszNetworkName, varptr(lpszInterfaceName), varptr(lpcchInterfaceName)   ; 戻り値は stat
; hCluster : HCLUSTER -> "sptr"
; lpszNodeName : LPCWSTR -> "sptr"
; lpszNetworkName : LPCWSTR -> "sptr"
; lpszInterfaceName : LPWSTR out -> "sptr"
; lpcchInterfaceName : 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 GetClusterNetInterface "GetClusterNetInterface" sptr, wstr, wstr, var, var
; res = GetClusterNetInterface(hCluster, lpszNodeName, lpszNetworkName, lpszInterfaceName, lpcchInterfaceName)
; hCluster : HCLUSTER -> "sptr"
; lpszNodeName : LPCWSTR -> "wstr"
; lpszNetworkName : LPCWSTR -> "wstr"
; lpszInterfaceName : LPWSTR out -> "var"
; lpcchInterfaceName : 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 GetClusterNetInterface(HCLUSTER hCluster, LPCWSTR lpszNodeName, LPCWSTR lpszNetworkName, LPWSTR lpszInterfaceName, DWORD* lpcchInterfaceName)
#uselib "CLUSAPI.dll"
#cfunc global GetClusterNetInterface "GetClusterNetInterface" intptr, wstr, wstr, var, var
; res = GetClusterNetInterface(hCluster, lpszNodeName, lpszNetworkName, lpszInterfaceName, lpcchInterfaceName)
; hCluster : HCLUSTER -> "intptr"
; lpszNodeName : LPCWSTR -> "wstr"
; lpszNetworkName : LPCWSTR -> "wstr"
; lpszInterfaceName : LPWSTR out -> "var"
; lpcchInterfaceName : 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")
	procGetClusterNetInterface = clusapi.NewProc("GetClusterNetInterface")
)

// hCluster (HCLUSTER), lpszNodeName (LPCWSTR), lpszNetworkName (LPCWSTR), lpszInterfaceName (LPWSTR out), lpcchInterfaceName (DWORD* in/out)
r1, _, err := procGetClusterNetInterface.Call(
	uintptr(hCluster),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpszNodeName))),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpszNetworkName))),
	uintptr(lpszInterfaceName),
	uintptr(lpcchInterfaceName),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function GetClusterNetInterface(
  hCluster: NativeInt;   // HCLUSTER
  lpszNodeName: PWideChar;   // LPCWSTR
  lpszNetworkName: PWideChar;   // LPCWSTR
  lpszInterfaceName: PWideChar;   // LPWSTR out
  lpcchInterfaceName: Pointer   // DWORD* in/out
): DWORD; stdcall;
  external 'CLUSAPI.dll' name 'GetClusterNetInterface';

result := DllCall("CLUSAPI\GetClusterNetInterface"
    , "Ptr", hCluster   ; HCLUSTER
    , "WStr", lpszNodeName   ; LPCWSTR
    , "WStr", lpszNetworkName   ; LPCWSTR
    , "Ptr", lpszInterfaceName   ; LPWSTR out
    , "Ptr", lpcchInterfaceName   ; DWORD* in/out
    , "UInt")   ; return: DWORD

●GetClusterNetInterface(hCluster, lpszNodeName, lpszNetworkName, lpszInterfaceName, lpcchInterfaceName) = DLL("CLUSAPI.dll", "dword GetClusterNetInterface(int, char*, char*, char*, void*)")
# 呼び出し: GetClusterNetInterface(hCluster, lpszNodeName, lpszNetworkName, lpszInterfaceName, lpcchInterfaceName)
# hCluster : HCLUSTER -> "int"
# lpszNodeName : LPCWSTR -> "char*"
# lpszNetworkName : LPCWSTR -> "char*"
# lpszInterfaceName : LPWSTR out -> "char*"
# lpcchInterfaceName : 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)。