HcnModifyLoadBalancer

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

HRESULT HcnModifyLoadBalancer(
    void* LoadBalancer,
    LPCWSTR Settings,
    LPWSTR* ErrorRecord   // optional
);

<DllImport("computenetwork.dll", ExactSpelling:=True)>
Public Shared Function HcnModifyLoadBalancer(
    LoadBalancer As IntPtr,   ' void*
    <MarshalAs(UnmanagedType.LPWStr)> Settings As String,   ' LPCWSTR
    ErrorRecord As IntPtr   ' LPWSTR* optional, out
) As Integer
End Function

' LoadBalancer : void*
' Settings : LPCWSTR
' ErrorRecord : LPWSTR* optional, out
Declare PtrSafe Function HcnModifyLoadBalancer Lib "computenetwork" ( _
    ByVal LoadBalancer As LongPtr, _
    ByVal Settings As LongPtr, _
    ByVal ErrorRecord 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

HcnModifyLoadBalancer = ctypes.windll.computenetwork.HcnModifyLoadBalancer
HcnModifyLoadBalancer.restype = ctypes.c_int
HcnModifyLoadBalancer.argtypes = [
    ctypes.POINTER(None),  # LoadBalancer : void*
    wintypes.LPCWSTR,  # Settings : LPCWSTR
    ctypes.c_void_p,  # ErrorRecord : LPWSTR* optional, out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('computenetwork.dll')
HcnModifyLoadBalancer = Fiddle::Function.new(
  lib['HcnModifyLoadBalancer'],
  [
    Fiddle::TYPE_VOIDP,  # LoadBalancer : void*
    Fiddle::TYPE_VOIDP,  # Settings : LPCWSTR
    Fiddle::TYPE_VOIDP,  # ErrorRecord : LPWSTR* optional, out
  ],
  Fiddle::TYPE_INT)

#[link(name = "computenetwork")]
extern "system" {
    fn HcnModifyLoadBalancer(
        LoadBalancer: *mut (),  // void*
        Settings: *const u16,  // LPCWSTR
        ErrorRecord: *mut *mut u16  // LPWSTR* optional, out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("computenetwork.dll")]
public static extern int HcnModifyLoadBalancer(IntPtr LoadBalancer, [MarshalAs(UnmanagedType.LPWStr)] string Settings, IntPtr ErrorRecord);
"@
$api = Add-Type -MemberDefinition $sig -Name 'computenetwork_HcnModifyLoadBalancer' -Namespace Win32 -PassThru
# $api::HcnModifyLoadBalancer(LoadBalancer, Settings, ErrorRecord)

#uselib "computenetwork.dll"
#func global HcnModifyLoadBalancer "HcnModifyLoadBalancer" sptr, sptr, sptr
; HcnModifyLoadBalancer LoadBalancer, Settings, varptr(ErrorRecord)   ; 戻り値は stat
; LoadBalancer : void* -> "sptr"
; Settings : LPCWSTR -> "sptr"
; ErrorRecord : LPWSTR* optional, 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 (
	computenetwork = windows.NewLazySystemDLL("computenetwork.dll")
	procHcnModifyLoadBalancer = computenetwork.NewProc("HcnModifyLoadBalancer")
)

// LoadBalancer (void*), Settings (LPCWSTR), ErrorRecord (LPWSTR* optional, out)
r1, _, err := procHcnModifyLoadBalancer.Call(
	uintptr(LoadBalancer),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(Settings))),
	uintptr(ErrorRecord),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function HcnModifyLoadBalancer(
  LoadBalancer: Pointer;   // void*
  Settings: PWideChar;   // LPCWSTR
  ErrorRecord: PPWideChar   // LPWSTR* optional, out
): Integer; stdcall;
  external 'computenetwork.dll' name 'HcnModifyLoadBalancer';

result := DllCall("computenetwork\HcnModifyLoadBalancer"
    , "Ptr", LoadBalancer   ; void*
    , "WStr", Settings   ; LPCWSTR
    , "Ptr", ErrorRecord   ; LPWSTR* optional, out
    , "Int")   ; return: HRESULT

●HcnModifyLoadBalancer(LoadBalancer, Settings, ErrorRecord) = DLL("computenetwork.dll", "int HcnModifyLoadBalancer(void*, char*, void*)")
# 呼び出し: HcnModifyLoadBalancer(LoadBalancer, Settings, ErrorRecord)
# LoadBalancer : void* -> "void*"
# Settings : LPCWSTR -> "char*"
# ErrorRecord : LPWSTR* optional, 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 "computenetwork" fn HcnModifyLoadBalancer(
    LoadBalancer: ?*anyopaque, // void*
    Settings: [*c]const u16, // LPCWSTR
    ErrorRecord: [*c][*c]u16 // LPWSTR* optional, out
) callconv(std.os.windows.WINAPI) i32;

proc HcnModifyLoadBalancer(
    LoadBalancer: pointer,  # void*
    Settings: WideCString,  # LPCWSTR
    ErrorRecord: ptr WideCString  # LPWSTR* optional, out
): int32 {.importc: "HcnModifyLoadBalancer", stdcall, dynlib: "computenetwork.dll".}

pragma(lib, "computenetwork");
extern(Windows)
int HcnModifyLoadBalancer(
    void* LoadBalancer,   // void*
    const(wchar)* Settings,   // LPCWSTR
    wchar** ErrorRecord   // LPWSTR* optional, out
);

ccall((:HcnModifyLoadBalancer, "computenetwork.dll"), stdcall, Int32,
      (Ptr{Cvoid}, Cwstring, Ptr{Ptr{UInt16}}),
      LoadBalancer, Settings, ErrorRecord)
# LoadBalancer : void* -> Ptr{Cvoid}
# Settings : LPCWSTR -> Cwstring
# ErrorRecord : LPWSTR* optional, out -> Ptr{Ptr{UInt16}}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t HcnModifyLoadBalancer(
    void* LoadBalancer,
    const uint16_t* Settings,
    uint16_t** ErrorRecord);
]]
local computenetwork = ffi.load("computenetwork")
-- computenetwork.HcnModifyLoadBalancer(LoadBalancer, Settings, ErrorRecord)
-- LoadBalancer : void*
-- Settings : LPCWSTR
-- ErrorRecord : LPWSTR* optional, 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('computenetwork.dll');
const HcnModifyLoadBalancer = lib.func('__stdcall', 'HcnModifyLoadBalancer', 'int32_t', ['void *', 'str16', 'void *']);
// HcnModifyLoadBalancer(LoadBalancer, Settings, ErrorRecord)
// LoadBalancer : void* -> 'void *'
// Settings : LPCWSTR -> 'str16'
// ErrorRecord : LPWSTR* optional, out -> 'void *'
// 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("computenetwork.dll", {
  HcnModifyLoadBalancer: { parameters: ["pointer", "buffer", "pointer"], result: "i32" },
});
// lib.symbols.HcnModifyLoadBalancer(LoadBalancer, Settings, ErrorRecord)
// LoadBalancer : void* -> "pointer"
// Settings : LPCWSTR -> "buffer"
// ErrorRecord : LPWSTR* optional, 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 HcnModifyLoadBalancer(
    void* LoadBalancer,
    const uint16_t* Settings,
    uint16_t** ErrorRecord);
C, "computenetwork.dll");
// $ffi->HcnModifyLoadBalancer(LoadBalancer, Settings, ErrorRecord);
// LoadBalancer : void*
// Settings : LPCWSTR
// ErrorRecord : LPWSTR* optional, 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 Computenetwork extends StdCallLibrary {
    Computenetwork INSTANCE = Native.load("computenetwork", Computenetwork.class);
    int HcnModifyLoadBalancer(
        Pointer LoadBalancer,   // void*
        WString Settings,   // LPCWSTR
        PointerByReference ErrorRecord   // LPWSTR* optional, out
    );
}

@[Link("computenetwork")]
lib Libcomputenetwork
  fun HcnModifyLoadBalancer = HcnModifyLoadBalancer(
    LoadBalancer : Void*,   # void*
    Settings : UInt16*,   # LPCWSTR
    ErrorRecord : UInt16**   # LPWSTR* optional, 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 HcnModifyLoadBalancerNative = Int32 Function(Pointer<Void>, Pointer<Utf16>, Pointer<Pointer<Utf16>>);
typedef HcnModifyLoadBalancerDart = int Function(Pointer<Void>, Pointer<Utf16>, Pointer<Pointer<Utf16>>);
final HcnModifyLoadBalancer = DynamicLibrary.open('computenetwork.dll')
    .lookupFunction<HcnModifyLoadBalancerNative, HcnModifyLoadBalancerDart>('HcnModifyLoadBalancer');
// LoadBalancer : void* -> Pointer<Void>
// Settings : LPCWSTR -> Pointer<Utf16>
// ErrorRecord : LPWSTR* optional, out -> Pointer<Pointer<Utf16>>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function HcnModifyLoadBalancer(
  LoadBalancer: Pointer;   // void*
  Settings: PWideChar;   // LPCWSTR
  ErrorRecord: PPWideChar   // LPWSTR* optional, out
): Integer; stdcall;
  external 'computenetwork.dll' name 'HcnModifyLoadBalancer';

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

foreign import stdcall safe "HcnModifyLoadBalancer"
  c_HcnModifyLoadBalancer :: Ptr () -> CWString -> Ptr CWString -> IO Int32
-- LoadBalancer : void* -> Ptr ()
-- Settings : LPCWSTR -> CWString
-- ErrorRecord : LPWSTR* optional, out -> Ptr CWString
-- 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 hcnmodifyloadbalancer =
  foreign "HcnModifyLoadBalancer"
    ((ptr void) @-> (ptr uint16_t) @-> (ptr (ptr uint16_t)) @-> returning int32_t)
(* LoadBalancer : void* -> (ptr void) *)
(* Settings : LPCWSTR -> (ptr uint16_t) *)
(* ErrorRecord : LPWSTR* optional, out -> (ptr (ptr uint16_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 computenetwork (t "computenetwork.dll"))
(cffi:use-foreign-library computenetwork)

(cffi:defcfun ("HcnModifyLoadBalancer" hcn-modify-load-balancer :convention :stdcall) :int32
  (load-balancer :pointer)   ; void*
  (settings (:string :encoding :utf-16le))   ; LPCWSTR
  (error-record :pointer))   ; LPWSTR* optional, out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $HcnModifyLoadBalancer = Win32::API::More->new('computenetwork',
    'int HcnModifyLoadBalancer(LPVOID LoadBalancer, LPCWSTR Settings, LPVOID ErrorRecord)');
# my $ret = $HcnModifyLoadBalancer->Call($LoadBalancer, $Settings, $ErrorRecord);
# LoadBalancer : void* -> LPVOID
# Settings : LPCWSTR -> LPCWSTR
# ErrorRecord : LPWSTR* optional, out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。