GetIpPathTable

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

WIN32_ERROR GetIpPathTable(
    ADDRESS_FAMILY Family,
    MIB_IPPATH_TABLE** Table
);

<DllImport("IPHLPAPI.dll", ExactSpelling:=True)>
Public Shared Function GetIpPathTable(
    Family As UShort,   ' ADDRESS_FAMILY
    Table As IntPtr   ' MIB_IPPATH_TABLE** out
) As UInteger
End Function

' Family : ADDRESS_FAMILY
' Table : MIB_IPPATH_TABLE** out
Declare PtrSafe Function GetIpPathTable Lib "iphlpapi" ( _
    ByVal Family As Integer, _
    ByVal Table 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

GetIpPathTable = ctypes.windll.iphlpapi.GetIpPathTable
GetIpPathTable.restype = wintypes.DWORD
GetIpPathTable.argtypes = [
    ctypes.c_ushort,  # Family : ADDRESS_FAMILY
    ctypes.c_void_p,  # Table : MIB_IPPATH_TABLE** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('IPHLPAPI.dll')
GetIpPathTable = Fiddle::Function.new(
  lib['GetIpPathTable'],
  [
    -Fiddle::TYPE_SHORT,  # Family : ADDRESS_FAMILY
    Fiddle::TYPE_VOIDP,  # Table : MIB_IPPATH_TABLE** out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "iphlpapi")]
extern "system" {
    fn GetIpPathTable(
        Family: u16,  // ADDRESS_FAMILY
        Table: *mut *mut MIB_IPPATH_TABLE  // MIB_IPPATH_TABLE** out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("IPHLPAPI.dll")]
public static extern uint GetIpPathTable(ushort Family, IntPtr Table);
"@
$api = Add-Type -MemberDefinition $sig -Name 'IPHLPAPI_GetIpPathTable' -Namespace Win32 -PassThru
# $api::GetIpPathTable(Family, Table)

#uselib "IPHLPAPI.dll"
#func global GetIpPathTable "GetIpPathTable" sptr, sptr
; GetIpPathTable Family, varptr(Table)   ; 戻り値は stat
; Family : ADDRESS_FAMILY -> "sptr"
; Table : MIB_IPPATH_TABLE** 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 (
	iphlpapi = windows.NewLazySystemDLL("IPHLPAPI.dll")
	procGetIpPathTable = iphlpapi.NewProc("GetIpPathTable")
)

// Family (ADDRESS_FAMILY), Table (MIB_IPPATH_TABLE** out)
r1, _, err := procGetIpPathTable.Call(
	uintptr(Family),
	uintptr(Table),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // WIN32_ERROR

function GetIpPathTable(
  Family: Word;   // ADDRESS_FAMILY
  Table: Pointer   // MIB_IPPATH_TABLE** out
): DWORD; stdcall;
  external 'IPHLPAPI.dll' name 'GetIpPathTable';

result := DllCall("IPHLPAPI\GetIpPathTable"
    , "UShort", Family   ; ADDRESS_FAMILY
    , "Ptr", Table   ; MIB_IPPATH_TABLE** out
    , "UInt")   ; return: WIN32_ERROR

●GetIpPathTable(Family, Table) = DLL("IPHLPAPI.dll", "dword GetIpPathTable(int, void*)")
# 呼び出し: GetIpPathTable(Family, Table)
# Family : ADDRESS_FAMILY -> "int"
# Table : MIB_IPPATH_TABLE** 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 "iphlpapi" fn GetIpPathTable(
    Family: u16, // ADDRESS_FAMILY
    Table: [*c][*c]MIB_IPPATH_TABLE // MIB_IPPATH_TABLE** out
) callconv(std.os.windows.WINAPI) u32;

proc GetIpPathTable(
    Family: uint16,  # ADDRESS_FAMILY
    Table: ptr MIB_IPPATH_TABLE  # MIB_IPPATH_TABLE** out
): uint32 {.importc: "GetIpPathTable", stdcall, dynlib: "IPHLPAPI.dll".}

pragma(lib, "iphlpapi");
extern(Windows)
uint GetIpPathTable(
    ushort Family,   // ADDRESS_FAMILY
    MIB_IPPATH_TABLE** Table   // MIB_IPPATH_TABLE** out
);

ccall((:GetIpPathTable, "IPHLPAPI.dll"), stdcall, UInt32,
      (UInt16, Ptr{MIB_IPPATH_TABLE}),
      Family, Table)
# Family : ADDRESS_FAMILY -> UInt16
# Table : MIB_IPPATH_TABLE** out -> Ptr{MIB_IPPATH_TABLE}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
uint32_t GetIpPathTable(
    uint16_t Family,
    void* Table);
]]
local iphlpapi = ffi.load("iphlpapi")
-- iphlpapi.GetIpPathTable(Family, Table)
-- Family : ADDRESS_FAMILY
-- Table : MIB_IPPATH_TABLE** 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('IPHLPAPI.dll');
const GetIpPathTable = lib.func('__stdcall', 'GetIpPathTable', 'uint32_t', ['uint16_t', 'void *']);
// GetIpPathTable(Family, Table)
// Family : ADDRESS_FAMILY -> 'uint16_t'
// Table : MIB_IPPATH_TABLE** 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("IPHLPAPI.dll", {
  GetIpPathTable: { parameters: ["u16", "pointer"], result: "u32" },
});
// lib.symbols.GetIpPathTable(Family, Table)
// Family : ADDRESS_FAMILY -> "u16"
// Table : MIB_IPPATH_TABLE** 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
uint32_t GetIpPathTable(
    uint16_t Family,
    void* Table);
C, "IPHLPAPI.dll");
// $ffi->GetIpPathTable(Family, Table);
// Family : ADDRESS_FAMILY
// Table : MIB_IPPATH_TABLE** 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 Iphlpapi extends StdCallLibrary {
    Iphlpapi INSTANCE = Native.load("iphlpapi", Iphlpapi.class);
    int GetIpPathTable(
        short Family,   // ADDRESS_FAMILY
        Pointer Table   // MIB_IPPATH_TABLE** out
    );
}

@[Link("iphlpapi")]
lib LibIPHLPAPI
  fun GetIpPathTable = GetIpPathTable(
    Family : UInt16,   # ADDRESS_FAMILY
    Table : MIB_IPPATH_TABLE**   # MIB_IPPATH_TABLE** out
  ) : UInt32
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 GetIpPathTableNative = Uint32 Function(Uint16, Pointer<Void>);
typedef GetIpPathTableDart = int Function(int, Pointer<Void>);
final GetIpPathTable = DynamicLibrary.open('IPHLPAPI.dll')
    .lookupFunction<GetIpPathTableNative, GetIpPathTableDart>('GetIpPathTable');
// Family : ADDRESS_FAMILY -> Uint16
// Table : MIB_IPPATH_TABLE** out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function GetIpPathTable(
  Family: Word;   // ADDRESS_FAMILY
  Table: Pointer   // MIB_IPPATH_TABLE** out
): DWORD; stdcall;
  external 'IPHLPAPI.dll' name 'GetIpPathTable';

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

foreign import stdcall safe "GetIpPathTable"
  c_GetIpPathTable :: Word16 -> Ptr () -> IO Word32
-- Family : ADDRESS_FAMILY -> Word16
-- Table : MIB_IPPATH_TABLE** out -> Ptr ()
-- 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 getippathtable =
  foreign "GetIpPathTable"
    (uint16_t @-> (ptr void) @-> returning uint32_t)
(* Family : ADDRESS_FAMILY -> uint16_t *)
(* Table : MIB_IPPATH_TABLE** out -> (ptr void) *)
(* 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 iphlpapi (t "IPHLPAPI.dll"))
(cffi:use-foreign-library iphlpapi)

(cffi:defcfun ("GetIpPathTable" get-ip-path-table :convention :stdcall) :uint32
  (family :uint16)   ; ADDRESS_FAMILY
  (table :pointer))   ; MIB_IPPATH_TABLE** out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $GetIpPathTable = Win32::API::More->new('IPHLPAPI',
    'DWORD GetIpPathTable(WORD Family, LPVOID Table)');
# my $ret = $GetIpPathTable->Call($Family, $Table);
# Family : ADDRESS_FAMILY -> WORD
# Table : MIB_IPPATH_TABLE** out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。