MgmGetFirstMfeStats

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

DWORD MgmGetFirstMfeStats(
    DWORD* pdwBufferSize,
    BYTE* pbBuffer,
    DWORD* pdwNumEntries,
    DWORD dwFlags
);

<DllImport("rtm.dll", ExactSpelling:=True)>
Public Shared Function MgmGetFirstMfeStats(
    ByRef pdwBufferSize As UInteger,   ' DWORD* in/out
    pbBuffer As IntPtr,   ' BYTE* in/out
    ByRef pdwNumEntries As UInteger,   ' DWORD* in/out
    dwFlags As UInteger   ' DWORD
) As UInteger
End Function

' pdwBufferSize : DWORD* in/out
' pbBuffer : BYTE* in/out
' pdwNumEntries : DWORD* in/out
' dwFlags : DWORD
Declare PtrSafe Function MgmGetFirstMfeStats Lib "rtm" ( _
    ByRef pdwBufferSize As Long, _
    ByVal pbBuffer As LongPtr, _
    ByRef pdwNumEntries As Long, _
    ByVal dwFlags 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

MgmGetFirstMfeStats = ctypes.windll.rtm.MgmGetFirstMfeStats
MgmGetFirstMfeStats.restype = wintypes.DWORD
MgmGetFirstMfeStats.argtypes = [
    ctypes.POINTER(wintypes.DWORD),  # pdwBufferSize : DWORD* in/out
    ctypes.POINTER(ctypes.c_ubyte),  # pbBuffer : BYTE* in/out
    ctypes.POINTER(wintypes.DWORD),  # pdwNumEntries : DWORD* in/out
    wintypes.DWORD,  # dwFlags : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('rtm.dll')
MgmGetFirstMfeStats = Fiddle::Function.new(
  lib['MgmGetFirstMfeStats'],
  [
    Fiddle::TYPE_VOIDP,  # pdwBufferSize : DWORD* in/out
    Fiddle::TYPE_VOIDP,  # pbBuffer : BYTE* in/out
    Fiddle::TYPE_VOIDP,  # pdwNumEntries : DWORD* in/out
    -Fiddle::TYPE_INT,  # dwFlags : DWORD
  ],
  -Fiddle::TYPE_INT)

#[link(name = "rtm")]
extern "system" {
    fn MgmGetFirstMfeStats(
        pdwBufferSize: *mut u32,  // DWORD* in/out
        pbBuffer: *mut u8,  // BYTE* in/out
        pdwNumEntries: *mut u32,  // DWORD* in/out
        dwFlags: u32  // DWORD
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("rtm.dll")]
public static extern uint MgmGetFirstMfeStats(ref uint pdwBufferSize, IntPtr pbBuffer, ref uint pdwNumEntries, uint dwFlags);
"@
$api = Add-Type -MemberDefinition $sig -Name 'rtm_MgmGetFirstMfeStats' -Namespace Win32 -PassThru
# $api::MgmGetFirstMfeStats(pdwBufferSize, pbBuffer, pdwNumEntries, dwFlags)

#uselib "rtm.dll"
#func global MgmGetFirstMfeStats "MgmGetFirstMfeStats" sptr, sptr, sptr, sptr
; MgmGetFirstMfeStats varptr(pdwBufferSize), varptr(pbBuffer), varptr(pdwNumEntries), dwFlags   ; 戻り値は stat
; pdwBufferSize : DWORD* in/out -> "sptr"
; pbBuffer : BYTE* in/out -> "sptr"
; pdwNumEntries : DWORD* in/out -> "sptr"
; dwFlags : DWORD -> "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 (
	rtm = windows.NewLazySystemDLL("rtm.dll")
	procMgmGetFirstMfeStats = rtm.NewProc("MgmGetFirstMfeStats")
)

// pdwBufferSize (DWORD* in/out), pbBuffer (BYTE* in/out), pdwNumEntries (DWORD* in/out), dwFlags (DWORD)
r1, _, err := procMgmGetFirstMfeStats.Call(
	uintptr(pdwBufferSize),
	uintptr(pbBuffer),
	uintptr(pdwNumEntries),
	uintptr(dwFlags),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function MgmGetFirstMfeStats(
  pdwBufferSize: Pointer;   // DWORD* in/out
  pbBuffer: Pointer;   // BYTE* in/out
  pdwNumEntries: Pointer;   // DWORD* in/out
  dwFlags: DWORD   // DWORD
): DWORD; stdcall;
  external 'rtm.dll' name 'MgmGetFirstMfeStats';

result := DllCall("rtm\MgmGetFirstMfeStats"
    , "Ptr", pdwBufferSize   ; DWORD* in/out
    , "Ptr", pbBuffer   ; BYTE* in/out
    , "Ptr", pdwNumEntries   ; DWORD* in/out
    , "UInt", dwFlags   ; DWORD
    , "UInt")   ; return: DWORD

●MgmGetFirstMfeStats(pdwBufferSize, pbBuffer, pdwNumEntries, dwFlags) = DLL("rtm.dll", "dword MgmGetFirstMfeStats(void*, void*, void*, dword)")
# 呼び出し: MgmGetFirstMfeStats(pdwBufferSize, pbBuffer, pdwNumEntries, dwFlags)
# pdwBufferSize : DWORD* in/out -> "void*"
# pbBuffer : BYTE* in/out -> "void*"
# pdwNumEntries : DWORD* in/out -> "void*"
# dwFlags : DWORD -> "dword"
# 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 "rtm" fn MgmGetFirstMfeStats(
    pdwBufferSize: [*c]u32, // DWORD* in/out
    pbBuffer: [*c]u8, // BYTE* in/out
    pdwNumEntries: [*c]u32, // DWORD* in/out
    dwFlags: u32 // DWORD
) callconv(std.os.windows.WINAPI) u32;

proc MgmGetFirstMfeStats(
    pdwBufferSize: ptr uint32,  # DWORD* in/out
    pbBuffer: ptr uint8,  # BYTE* in/out
    pdwNumEntries: ptr uint32,  # DWORD* in/out
    dwFlags: uint32  # DWORD
): uint32 {.importc: "MgmGetFirstMfeStats", stdcall, dynlib: "rtm.dll".}

pragma(lib, "rtm");
extern(Windows)
uint MgmGetFirstMfeStats(
    uint* pdwBufferSize,   // DWORD* in/out
    ubyte* pbBuffer,   // BYTE* in/out
    uint* pdwNumEntries,   // DWORD* in/out
    uint dwFlags   // DWORD
);

ccall((:MgmGetFirstMfeStats, "rtm.dll"), stdcall, UInt32,
      (Ptr{UInt32}, Ptr{UInt8}, Ptr{UInt32}, UInt32),
      pdwBufferSize, pbBuffer, pdwNumEntries, dwFlags)
# pdwBufferSize : DWORD* in/out -> Ptr{UInt32}
# pbBuffer : BYTE* in/out -> Ptr{UInt8}
# pdwNumEntries : DWORD* in/out -> Ptr{UInt32}
# dwFlags : DWORD -> UInt32
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
uint32_t MgmGetFirstMfeStats(
    uint32_t* pdwBufferSize,
    uint8_t* pbBuffer,
    uint32_t* pdwNumEntries,
    uint32_t dwFlags);
]]
local rtm = ffi.load("rtm")
-- rtm.MgmGetFirstMfeStats(pdwBufferSize, pbBuffer, pdwNumEntries, dwFlags)
-- pdwBufferSize : DWORD* in/out
-- pbBuffer : BYTE* in/out
-- pdwNumEntries : DWORD* in/out
-- dwFlags : DWORD
-- 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('rtm.dll');
const MgmGetFirstMfeStats = lib.func('__stdcall', 'MgmGetFirstMfeStats', 'uint32_t', ['uint32_t *', 'uint8_t *', 'uint32_t *', 'uint32_t']);
// MgmGetFirstMfeStats(pdwBufferSize, pbBuffer, pdwNumEntries, dwFlags)
// pdwBufferSize : DWORD* in/out -> 'uint32_t *'
// pbBuffer : BYTE* in/out -> 'uint8_t *'
// pdwNumEntries : DWORD* in/out -> 'uint32_t *'
// dwFlags : DWORD -> '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("rtm.dll", {
  MgmGetFirstMfeStats: { parameters: ["pointer", "pointer", "pointer", "u32"], result: "u32" },
});
// lib.symbols.MgmGetFirstMfeStats(pdwBufferSize, pbBuffer, pdwNumEntries, dwFlags)
// pdwBufferSize : DWORD* in/out -> "pointer"
// pbBuffer : BYTE* in/out -> "pointer"
// pdwNumEntries : DWORD* in/out -> "pointer"
// dwFlags : DWORD -> "u32"
// 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 MgmGetFirstMfeStats(
    uint32_t* pdwBufferSize,
    uint8_t* pbBuffer,
    uint32_t* pdwNumEntries,
    uint32_t dwFlags);
C, "rtm.dll");
// $ffi->MgmGetFirstMfeStats(pdwBufferSize, pbBuffer, pdwNumEntries, dwFlags);
// pdwBufferSize : DWORD* in/out
// pbBuffer : BYTE* in/out
// pdwNumEntries : DWORD* in/out
// dwFlags : DWORD
// 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 Rtm extends StdCallLibrary {
    Rtm INSTANCE = Native.load("rtm", Rtm.class);
    int MgmGetFirstMfeStats(
        IntByReference pdwBufferSize,   // DWORD* in/out
        byte[] pbBuffer,   // BYTE* in/out
        IntByReference pdwNumEntries,   // DWORD* in/out
        int dwFlags   // DWORD
    );
}

@[Link("rtm")]
lib Librtm
  fun MgmGetFirstMfeStats = MgmGetFirstMfeStats(
    pdwBufferSize : UInt32*,   # DWORD* in/out
    pbBuffer : UInt8*,   # BYTE* in/out
    pdwNumEntries : UInt32*,   # DWORD* in/out
    dwFlags : UInt32   # DWORD
  ) : 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 MgmGetFirstMfeStatsNative = Uint32 Function(Pointer<Uint32>, Pointer<Uint8>, Pointer<Uint32>, Uint32);
typedef MgmGetFirstMfeStatsDart = int Function(Pointer<Uint32>, Pointer<Uint8>, Pointer<Uint32>, int);
final MgmGetFirstMfeStats = DynamicLibrary.open('rtm.dll')
    .lookupFunction<MgmGetFirstMfeStatsNative, MgmGetFirstMfeStatsDart>('MgmGetFirstMfeStats');
// pdwBufferSize : DWORD* in/out -> Pointer<Uint32>
// pbBuffer : BYTE* in/out -> Pointer<Uint8>
// pdwNumEntries : DWORD* in/out -> Pointer<Uint32>
// dwFlags : DWORD -> Uint32
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function MgmGetFirstMfeStats(
  pdwBufferSize: Pointer;   // DWORD* in/out
  pbBuffer: Pointer;   // BYTE* in/out
  pdwNumEntries: Pointer;   // DWORD* in/out
  dwFlags: DWORD   // DWORD
): DWORD; stdcall;
  external 'rtm.dll' name 'MgmGetFirstMfeStats';

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

foreign import stdcall safe "MgmGetFirstMfeStats"
  c_MgmGetFirstMfeStats :: Ptr Word32 -> Ptr Word8 -> Ptr Word32 -> Word32 -> IO Word32
-- pdwBufferSize : DWORD* in/out -> Ptr Word32
-- pbBuffer : BYTE* in/out -> Ptr Word8
-- pdwNumEntries : DWORD* in/out -> Ptr Word32
-- dwFlags : DWORD -> 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 mgmgetfirstmfestats =
  foreign "MgmGetFirstMfeStats"
    ((ptr uint32_t) @-> (ptr uint8_t) @-> (ptr uint32_t) @-> uint32_t @-> returning uint32_t)
(* pdwBufferSize : DWORD* in/out -> (ptr uint32_t) *)
(* pbBuffer : BYTE* in/out -> (ptr uint8_t) *)
(* pdwNumEntries : DWORD* in/out -> (ptr uint32_t) *)
(* dwFlags : DWORD -> 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 rtm (t "rtm.dll"))
(cffi:use-foreign-library rtm)

(cffi:defcfun ("MgmGetFirstMfeStats" mgm-get-first-mfe-stats :convention :stdcall) :uint32
  (pdw-buffer-size :pointer)   ; DWORD* in/out
  (pb-buffer :pointer)   ; BYTE* in/out
  (pdw-num-entries :pointer)   ; DWORD* in/out
  (dw-flags :uint32))   ; DWORD
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $MgmGetFirstMfeStats = Win32::API::More->new('rtm',
    'DWORD MgmGetFirstMfeStats(LPVOID pdwBufferSize, LPVOID pbBuffer, LPVOID pdwNumEntries, DWORD dwFlags)');
# my $ret = $MgmGetFirstMfeStats->Call($pdwBufferSize, $pbBuffer, $pdwNumEntries, $dwFlags);
# pdwBufferSize : DWORD* in/out -> LPVOID
# pbBuffer : BYTE* in/out -> LPVOID
# pdwNumEntries : DWORD* in/out -> LPVOID
# dwFlags : DWORD -> DWORD
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。