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MprAdminInterfaceEnum

関数

ルーターサーバー上のインターフェイス一覧を列挙する。

DLLMPRAPI.dll呼出規約winapi対応OSwindowsserver2000

シグネチャ

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

DWORD MprAdminInterfaceEnum(
    INT_PTR hMprServer,
    DWORD dwLevel,
    BYTE** lplpbBuffer,
    DWORD dwPrefMaxLen,
    DWORD* lpdwEntriesRead,
    DWORD* lpdwTotalEntries,
    DWORD* lpdwResumeHandle   // optional
);

パラメーター

名前	型	方向	説明
hMprServer	INT_PTR	in	MprAdminServerConnectで取得したMPRサーバーハンドル(INT_PTR)。
dwLevel	DWORD	in	取得する情報レベル(0、1、2)。返却構造体の種類を決める。
lplpbBuffer	BYTE**	out	確保されたインターフェイス情報バッファへのポインタを受け取る変数。MprAdminBufferFreeで解放する。
dwPrefMaxLen	DWORD	in	返却データの推奨最大バイト数。-1で制限なしとなる。
lpdwEntriesRead	DWORD*	out	実際に読み取られたエントリ数を受け取る変数へのポインタ。
lpdwTotalEntries	DWORD*	out	列挙可能な総エントリ数を受け取る変数へのポインタ。
lpdwResumeHandle	DWORD*	inoptional	列挙再開位置を保持する入出力変数へのポインタ。初回は0を指す。NULL可。

戻り値の型: DWORD

各言語での呼び出し定義

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

DWORD MprAdminInterfaceEnum(
    INT_PTR hMprServer,
    DWORD dwLevel,
    BYTE** lplpbBuffer,
    DWORD dwPrefMaxLen,
    DWORD* lpdwEntriesRead,
    DWORD* lpdwTotalEntries,
    DWORD* lpdwResumeHandle   // optional
);

[DllImport("MPRAPI.dll", ExactSpelling = true)]
static extern uint MprAdminInterfaceEnum(
    IntPtr hMprServer,   // INT_PTR
    uint dwLevel,   // DWORD
    IntPtr lplpbBuffer,   // BYTE** out
    uint dwPrefMaxLen,   // DWORD
    out uint lpdwEntriesRead,   // DWORD* out
    out uint lpdwTotalEntries,   // DWORD* out
    IntPtr lpdwResumeHandle   // DWORD* optional
);

<DllImport("MPRAPI.dll", ExactSpelling:=True)>
Public Shared Function MprAdminInterfaceEnum(
    hMprServer As IntPtr,   ' INT_PTR
    dwLevel As UInteger,   ' DWORD
    lplpbBuffer As IntPtr,   ' BYTE** out
    dwPrefMaxLen As UInteger,   ' DWORD
    <Out> ByRef lpdwEntriesRead As UInteger,   ' DWORD* out
    <Out> ByRef lpdwTotalEntries As UInteger,   ' DWORD* out
    lpdwResumeHandle As IntPtr   ' DWORD* optional
) As UInteger
End Function

' hMprServer : INT_PTR
' dwLevel : DWORD
' lplpbBuffer : BYTE** out
' dwPrefMaxLen : DWORD
' lpdwEntriesRead : DWORD* out
' lpdwTotalEntries : DWORD* out
' lpdwResumeHandle : DWORD* optional
Declare PtrSafe Function MprAdminInterfaceEnum Lib "mprapi" ( _
    ByVal hMprServer As LongPtr, _
    ByVal dwLevel As Long, _
    ByVal lplpbBuffer As LongPtr, _
    ByVal dwPrefMaxLen As Long, _
    ByRef lpdwEntriesRead As Long, _
    ByRef lpdwTotalEntries As Long, _
    ByVal lpdwResumeHandle 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

MprAdminInterfaceEnum = ctypes.windll.mprapi.MprAdminInterfaceEnum
MprAdminInterfaceEnum.restype = wintypes.DWORD
MprAdminInterfaceEnum.argtypes = [
    ctypes.c_ssize_t,  # hMprServer : INT_PTR
    wintypes.DWORD,  # dwLevel : DWORD
    ctypes.c_void_p,  # lplpbBuffer : BYTE** out
    wintypes.DWORD,  # dwPrefMaxLen : DWORD
    ctypes.POINTER(wintypes.DWORD),  # lpdwEntriesRead : DWORD* out
    ctypes.POINTER(wintypes.DWORD),  # lpdwTotalEntries : DWORD* out
    ctypes.POINTER(wintypes.DWORD),  # lpdwResumeHandle : DWORD* optional
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('MPRAPI.dll')
MprAdminInterfaceEnum = Fiddle::Function.new(
  lib['MprAdminInterfaceEnum'],
  [
    Fiddle::TYPE_INTPTR_T,  # hMprServer : INT_PTR
    -Fiddle::TYPE_INT,  # dwLevel : DWORD
    Fiddle::TYPE_VOIDP,  # lplpbBuffer : BYTE** out
    -Fiddle::TYPE_INT,  # dwPrefMaxLen : DWORD
    Fiddle::TYPE_VOIDP,  # lpdwEntriesRead : DWORD* out
    Fiddle::TYPE_VOIDP,  # lpdwTotalEntries : DWORD* out
    Fiddle::TYPE_VOIDP,  # lpdwResumeHandle : DWORD* optional
  ],
  -Fiddle::TYPE_INT)

#[link(name = "mprapi")]
extern "system" {
    fn MprAdminInterfaceEnum(
        hMprServer: isize,  // INT_PTR
        dwLevel: u32,  // DWORD
        lplpbBuffer: *mut *mut u8,  // BYTE** out
        dwPrefMaxLen: u32,  // DWORD
        lpdwEntriesRead: *mut u32,  // DWORD* out
        lpdwTotalEntries: *mut u32,  // DWORD* out
        lpdwResumeHandle: *mut u32  // DWORD* optional
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("MPRAPI.dll")]
public static extern uint MprAdminInterfaceEnum(IntPtr hMprServer, uint dwLevel, IntPtr lplpbBuffer, uint dwPrefMaxLen, out uint lpdwEntriesRead, out uint lpdwTotalEntries, IntPtr lpdwResumeHandle);
"@
$api = Add-Type -MemberDefinition $sig -Name 'MPRAPI_MprAdminInterfaceEnum' -Namespace Win32 -PassThru
# $api::MprAdminInterfaceEnum(hMprServer, dwLevel, lplpbBuffer, dwPrefMaxLen, lpdwEntriesRead, lpdwTotalEntries, lpdwResumeHandle)

#uselib "MPRAPI.dll"
#func global MprAdminInterfaceEnum "MprAdminInterfaceEnum" sptr, sptr, sptr, sptr, sptr, sptr, sptr
; MprAdminInterfaceEnum hMprServer, dwLevel, varptr(lplpbBuffer), dwPrefMaxLen, varptr(lpdwEntriesRead), varptr(lpdwTotalEntries), varptr(lpdwResumeHandle)   ; 戻り値は stat
; hMprServer : INT_PTR -> "sptr"
; dwLevel : DWORD -> "sptr"
; lplpbBuffer : BYTE** out -> "sptr"
; dwPrefMaxLen : DWORD -> "sptr"
; lpdwEntriesRead : DWORD* out -> "sptr"
; lpdwTotalEntries : DWORD* out -> "sptr"
; lpdwResumeHandle : DWORD* optional -> "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。

出力引数:

#uselib "MPRAPI.dll"
#cfunc global MprAdminInterfaceEnum "MprAdminInterfaceEnum" sptr, int, var, int, var, var, var
; res = MprAdminInterfaceEnum(hMprServer, dwLevel, lplpbBuffer, dwPrefMaxLen, lpdwEntriesRead, lpdwTotalEntries, lpdwResumeHandle)
; hMprServer : INT_PTR -> "sptr"
; dwLevel : DWORD -> "int"
; lplpbBuffer : BYTE** out -> "var"
; dwPrefMaxLen : DWORD -> "int"
; lpdwEntriesRead : DWORD* out -> "var"
; lpdwTotalEntries : DWORD* out -> "var"
; lpdwResumeHandle : DWORD* optional -> "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。#uselib "MPRAPI.dll"
#cfunc global MprAdminInterfaceEnum "MprAdminInterfaceEnum" sptr, int, sptr, int, sptr, sptr, sptr
; res = MprAdminInterfaceEnum(hMprServer, dwLevel, varptr(lplpbBuffer), dwPrefMaxLen, varptr(lpdwEntriesRead), varptr(lpdwTotalEntries), varptr(lpdwResumeHandle))
; hMprServer : INT_PTR -> "sptr"
; dwLevel : DWORD -> "int"
; lplpbBuffer : BYTE** out -> "sptr"
; dwPrefMaxLen : DWORD -> "int"
; lpdwEntriesRead : DWORD* out -> "sptr"
; lpdwTotalEntries : DWORD* out -> "sptr"
; lpdwResumeHandle : DWORD* optional -> "sptr"
; ※出力/バッファ引数はポインタ方式(token=sptr / 呼び出しは varptr(変数))。

出力引数:

; DWORD MprAdminInterfaceEnum(INT_PTR hMprServer, DWORD dwLevel, BYTE** lplpbBuffer, DWORD dwPrefMaxLen, DWORD* lpdwEntriesRead, DWORD* lpdwTotalEntries, DWORD* lpdwResumeHandle)
#uselib "MPRAPI.dll"
#cfunc global MprAdminInterfaceEnum "MprAdminInterfaceEnum" intptr, int, var, int, var, var, var
; res = MprAdminInterfaceEnum(hMprServer, dwLevel, lplpbBuffer, dwPrefMaxLen, lpdwEntriesRead, lpdwTotalEntries, lpdwResumeHandle)
; hMprServer : INT_PTR -> "intptr"
; dwLevel : DWORD -> "int"
; lplpbBuffer : BYTE** out -> "var"
; dwPrefMaxLen : DWORD -> "int"
; lpdwEntriesRead : DWORD* out -> "var"
; lpdwTotalEntries : DWORD* out -> "var"
; lpdwResumeHandle : DWORD* optional -> "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 MprAdminInterfaceEnum(INT_PTR hMprServer, DWORD dwLevel, BYTE** lplpbBuffer, DWORD dwPrefMaxLen, DWORD* lpdwEntriesRead, DWORD* lpdwTotalEntries, DWORD* lpdwResumeHandle)
#uselib "MPRAPI.dll"
#cfunc global MprAdminInterfaceEnum "MprAdminInterfaceEnum" intptr, int, intptr, int, intptr, intptr, intptr
; res = MprAdminInterfaceEnum(hMprServer, dwLevel, varptr(lplpbBuffer), dwPrefMaxLen, varptr(lpdwEntriesRead), varptr(lpdwTotalEntries), varptr(lpdwResumeHandle))
; hMprServer : INT_PTR -> "intptr"
; dwLevel : DWORD -> "int"
; lplpbBuffer : BYTE** out -> "intptr"
; dwPrefMaxLen : DWORD -> "int"
; lpdwEntriesRead : DWORD* out -> "intptr"
; lpdwTotalEntries : DWORD* out -> "intptr"
; lpdwResumeHandle : DWORD* optional -> "intptr"
; ※出力/バッファ引数はポインタ方式(token=intptr / 呼び出しは varptr(変数))。

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

var (
	mprapi = windows.NewLazySystemDLL("MPRAPI.dll")
	procMprAdminInterfaceEnum = mprapi.NewProc("MprAdminInterfaceEnum")
)

// hMprServer (INT_PTR), dwLevel (DWORD), lplpbBuffer (BYTE** out), dwPrefMaxLen (DWORD), lpdwEntriesRead (DWORD* out), lpdwTotalEntries (DWORD* out), lpdwResumeHandle (DWORD* optional)
r1, _, err := procMprAdminInterfaceEnum.Call(
	uintptr(hMprServer),
	uintptr(dwLevel),
	uintptr(lplpbBuffer),
	uintptr(dwPrefMaxLen),
	uintptr(lpdwEntriesRead),
	uintptr(lpdwTotalEntries),
	uintptr(lpdwResumeHandle),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function MprAdminInterfaceEnum(
  hMprServer: NativeInt;   // INT_PTR
  dwLevel: DWORD;   // DWORD
  lplpbBuffer: Pointer;   // BYTE** out
  dwPrefMaxLen: DWORD;   // DWORD
  lpdwEntriesRead: Pointer;   // DWORD* out
  lpdwTotalEntries: Pointer;   // DWORD* out
  lpdwResumeHandle: Pointer   // DWORD* optional
): DWORD; stdcall;
  external 'MPRAPI.dll' name 'MprAdminInterfaceEnum';

result := DllCall("MPRAPI\MprAdminInterfaceEnum"
    , "Ptr", hMprServer   ; INT_PTR
    , "UInt", dwLevel   ; DWORD
    , "Ptr", lplpbBuffer   ; BYTE** out
    , "UInt", dwPrefMaxLen   ; DWORD
    , "Ptr", lpdwEntriesRead   ; DWORD* out
    , "Ptr", lpdwTotalEntries   ; DWORD* out
    , "Ptr", lpdwResumeHandle   ; DWORD* optional
    , "UInt")   ; return: DWORD

●MprAdminInterfaceEnum(hMprServer, dwLevel, lplpbBuffer, dwPrefMaxLen, lpdwEntriesRead, lpdwTotalEntries, lpdwResumeHandle) = DLL("MPRAPI.dll", "dword MprAdminInterfaceEnum(int, dword, void*, dword, void*, void*, void*)")
# 呼び出し: MprAdminInterfaceEnum(hMprServer, dwLevel, lplpbBuffer, dwPrefMaxLen, lpdwEntriesRead, lpdwTotalEntries, lpdwResumeHandle)
# hMprServer : INT_PTR -> "int"
# dwLevel : DWORD -> "dword"
# lplpbBuffer : BYTE** out -> "void*"
# dwPrefMaxLen : DWORD -> "dword"
# lpdwEntriesRead : DWORD* out -> "void*"
# lpdwTotalEntries : DWORD* out -> "void*"
# lpdwResumeHandle : DWORD* optional -> "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 "mprapi" fn MprAdminInterfaceEnum(
    hMprServer: isize, // INT_PTR
    dwLevel: u32, // DWORD
    lplpbBuffer: [*c][*c]u8, // BYTE** out
    dwPrefMaxLen: u32, // DWORD
    lpdwEntriesRead: [*c]u32, // DWORD* out
    lpdwTotalEntries: [*c]u32, // DWORD* out
    lpdwResumeHandle: [*c]u32 // DWORD* optional
) callconv(std.os.windows.WINAPI) u32;

proc MprAdminInterfaceEnum(
    hMprServer: int,  # INT_PTR
    dwLevel: uint32,  # DWORD
    lplpbBuffer: ptr uint8,  # BYTE** out
    dwPrefMaxLen: uint32,  # DWORD
    lpdwEntriesRead: ptr uint32,  # DWORD* out
    lpdwTotalEntries: ptr uint32,  # DWORD* out
    lpdwResumeHandle: ptr uint32  # DWORD* optional
): uint32 {.importc: "MprAdminInterfaceEnum", stdcall, dynlib: "MPRAPI.dll".}

pragma(lib, "mprapi");
extern(Windows)
uint MprAdminInterfaceEnum(
    ptrdiff_t hMprServer,   // INT_PTR
    uint dwLevel,   // DWORD
    ubyte** lplpbBuffer,   // BYTE** out
    uint dwPrefMaxLen,   // DWORD
    uint* lpdwEntriesRead,   // DWORD* out
    uint* lpdwTotalEntries,   // DWORD* out
    uint* lpdwResumeHandle   // DWORD* optional
);

ccall((:MprAdminInterfaceEnum, "MPRAPI.dll"), stdcall, UInt32,
      (Int, UInt32, Ptr{UInt8}, UInt32, Ptr{UInt32}, Ptr{UInt32}, Ptr{UInt32}),
      hMprServer, dwLevel, lplpbBuffer, dwPrefMaxLen, lpdwEntriesRead, lpdwTotalEntries, lpdwResumeHandle)
# hMprServer : INT_PTR -> Int
# dwLevel : DWORD -> UInt32
# lplpbBuffer : BYTE** out -> Ptr{UInt8}
# dwPrefMaxLen : DWORD -> UInt32
# lpdwEntriesRead : DWORD* out -> Ptr{UInt32}
# lpdwTotalEntries : DWORD* out -> Ptr{UInt32}
# lpdwResumeHandle : DWORD* optional -> Ptr{UInt32}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
uint32_t MprAdminInterfaceEnum(
    intptr_t hMprServer,
    uint32_t dwLevel,
    uint8_t** lplpbBuffer,
    uint32_t dwPrefMaxLen,
    uint32_t* lpdwEntriesRead,
    uint32_t* lpdwTotalEntries,
    uint32_t* lpdwResumeHandle);
]]
local mprapi = ffi.load("mprapi")
-- mprapi.MprAdminInterfaceEnum(hMprServer, dwLevel, lplpbBuffer, dwPrefMaxLen, lpdwEntriesRead, lpdwTotalEntries, lpdwResumeHandle)
-- hMprServer : INT_PTR
-- dwLevel : DWORD
-- lplpbBuffer : BYTE** out
-- dwPrefMaxLen : DWORD
-- lpdwEntriesRead : DWORD* out
-- lpdwTotalEntries : DWORD* out
-- lpdwResumeHandle : DWORD* optional
-- 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('MPRAPI.dll');
const MprAdminInterfaceEnum = lib.func('__stdcall', 'MprAdminInterfaceEnum', 'uint32_t', ['intptr_t', 'uint32_t', 'uint8_t *', 'uint32_t', 'uint32_t *', 'uint32_t *', 'uint32_t *']);
// MprAdminInterfaceEnum(hMprServer, dwLevel, lplpbBuffer, dwPrefMaxLen, lpdwEntriesRead, lpdwTotalEntries, lpdwResumeHandle)
// hMprServer : INT_PTR -> 'intptr_t'
// dwLevel : DWORD -> 'uint32_t'
// lplpbBuffer : BYTE** out -> 'uint8_t *'
// dwPrefMaxLen : DWORD -> 'uint32_t'
// lpdwEntriesRead : DWORD* out -> 'uint32_t *'
// lpdwTotalEntries : DWORD* out -> 'uint32_t *'
// lpdwResumeHandle : DWORD* optional -> '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("MPRAPI.dll", {
  MprAdminInterfaceEnum: { parameters: ["isize", "u32", "pointer", "u32", "pointer", "pointer", "pointer"], result: "u32" },
});
// lib.symbols.MprAdminInterfaceEnum(hMprServer, dwLevel, lplpbBuffer, dwPrefMaxLen, lpdwEntriesRead, lpdwTotalEntries, lpdwResumeHandle)
// hMprServer : INT_PTR -> "isize"
// dwLevel : DWORD -> "u32"
// lplpbBuffer : BYTE** out -> "pointer"
// dwPrefMaxLen : DWORD -> "u32"
// lpdwEntriesRead : DWORD* out -> "pointer"
// lpdwTotalEntries : DWORD* out -> "pointer"
// lpdwResumeHandle : DWORD* optional -> "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 MprAdminInterfaceEnum(
    intptr_t hMprServer,
    uint32_t dwLevel,
    uint8_t** lplpbBuffer,
    uint32_t dwPrefMaxLen,
    uint32_t* lpdwEntriesRead,
    uint32_t* lpdwTotalEntries,
    uint32_t* lpdwResumeHandle);
C, "MPRAPI.dll");
// $ffi->MprAdminInterfaceEnum(hMprServer, dwLevel, lplpbBuffer, dwPrefMaxLen, lpdwEntriesRead, lpdwTotalEntries, lpdwResumeHandle);
// hMprServer : INT_PTR
// dwLevel : DWORD
// lplpbBuffer : BYTE** out
// dwPrefMaxLen : DWORD
// lpdwEntriesRead : DWORD* out
// lpdwTotalEntries : DWORD* out
// lpdwResumeHandle : DWORD* optional
// 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 Mprapi extends StdCallLibrary {
    Mprapi INSTANCE = Native.load("mprapi", Mprapi.class);
    int MprAdminInterfaceEnum(
        long hMprServer,   // INT_PTR
        int dwLevel,   // DWORD
        Pointer lplpbBuffer,   // BYTE** out
        int dwPrefMaxLen,   // DWORD
        IntByReference lpdwEntriesRead,   // DWORD* out
        IntByReference lpdwTotalEntries,   // DWORD* out
        IntByReference lpdwResumeHandle   // DWORD* optional
    );
}

@[Link("mprapi")]
lib LibMPRAPI
  fun MprAdminInterfaceEnum = MprAdminInterfaceEnum(
    hMprServer : LibC::SSizeT,   # INT_PTR
    dwLevel : UInt32,   # DWORD
    lplpbBuffer : UInt8**,   # BYTE** out
    dwPrefMaxLen : UInt32,   # DWORD
    lpdwEntriesRead : UInt32*,   # DWORD* out
    lpdwTotalEntries : UInt32*,   # DWORD* out
    lpdwResumeHandle : UInt32*   # DWORD* optional
  ) : 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 MprAdminInterfaceEnumNative = Uint32 Function(IntPtr, Uint32, Pointer<Uint8>, Uint32, Pointer<Uint32>, Pointer<Uint32>, Pointer<Uint32>);
typedef MprAdminInterfaceEnumDart = int Function(int, int, Pointer<Uint8>, int, Pointer<Uint32>, Pointer<Uint32>, Pointer<Uint32>);
final MprAdminInterfaceEnum = DynamicLibrary.open('MPRAPI.dll')
    .lookupFunction<MprAdminInterfaceEnumNative, MprAdminInterfaceEnumDart>('MprAdminInterfaceEnum');
// hMprServer : INT_PTR -> IntPtr
// dwLevel : DWORD -> Uint32
// lplpbBuffer : BYTE** out -> Pointer<Uint8>
// dwPrefMaxLen : DWORD -> Uint32
// lpdwEntriesRead : DWORD* out -> Pointer<Uint32>
// lpdwTotalEntries : DWORD* out -> Pointer<Uint32>
// lpdwResumeHandle : DWORD* optional -> Pointer<Uint32>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function MprAdminInterfaceEnum(
  hMprServer: NativeInt;   // INT_PTR
  dwLevel: DWORD;   // DWORD
  lplpbBuffer: Pointer;   // BYTE** out
  dwPrefMaxLen: DWORD;   // DWORD
  lpdwEntriesRead: Pointer;   // DWORD* out
  lpdwTotalEntries: Pointer;   // DWORD* out
  lpdwResumeHandle: Pointer   // DWORD* optional
): DWORD; stdcall;
  external 'MPRAPI.dll' name 'MprAdminInterfaceEnum';

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

foreign import stdcall safe "MprAdminInterfaceEnum"
  c_MprAdminInterfaceEnum :: CIntPtr -> Word32 -> Ptr Word8 -> Word32 -> Ptr Word32 -> Ptr Word32 -> Ptr Word32 -> IO Word32
-- hMprServer : INT_PTR -> CIntPtr
-- dwLevel : DWORD -> Word32
-- lplpbBuffer : BYTE** out -> Ptr Word8
-- dwPrefMaxLen : DWORD -> Word32
-- lpdwEntriesRead : DWORD* out -> Ptr Word32
-- lpdwTotalEntries : DWORD* out -> Ptr Word32
-- lpdwResumeHandle : DWORD* optional -> 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 mpradmininterfaceenum =
  foreign "MprAdminInterfaceEnum"
    (intptr_t @-> uint32_t @-> (ptr uint8_t) @-> uint32_t @-> (ptr uint32_t) @-> (ptr uint32_t) @-> (ptr uint32_t) @-> returning uint32_t)
(* hMprServer : INT_PTR -> intptr_t *)
(* dwLevel : DWORD -> uint32_t *)
(* lplpbBuffer : BYTE** out -> (ptr uint8_t) *)
(* dwPrefMaxLen : DWORD -> uint32_t *)
(* lpdwEntriesRead : DWORD* out -> (ptr uint32_t) *)
(* lpdwTotalEntries : DWORD* out -> (ptr uint32_t) *)
(* lpdwResumeHandle : DWORD* optional -> (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 mprapi (t "MPRAPI.dll"))
(cffi:use-foreign-library mprapi)

(cffi:defcfun ("MprAdminInterfaceEnum" mpr-admin-interface-enum :convention :stdcall) :uint32
  (h-mpr-server :int64)   ; INT_PTR
  (dw-level :uint32)   ; DWORD
  (lplpb-buffer :pointer)   ; BYTE** out
  (dw-pref-max-len :uint32)   ; DWORD
  (lpdw-entries-read :pointer)   ; DWORD* out
  (lpdw-total-entries :pointer)   ; DWORD* out
  (lpdw-resume-handle :pointer))   ; DWORD* optional
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $MprAdminInterfaceEnum = Win32::API::More->new('MPRAPI',
    'DWORD MprAdminInterfaceEnum(LPARAM hMprServer, DWORD dwLevel, LPVOID lplpbBuffer, DWORD dwPrefMaxLen, LPVOID lpdwEntriesRead, LPVOID lpdwTotalEntries, LPVOID lpdwResumeHandle)');
# my $ret = $MprAdminInterfaceEnum->Call($hMprServer, $dwLevel, $lplpbBuffer, $dwPrefMaxLen, $lpdwEntriesRead, $lpdwTotalEntries, $lpdwResumeHandle);
# hMprServer : INT_PTR -> LPARAM
# dwLevel : DWORD -> DWORD
# lplpbBuffer : BYTE** out -> LPVOID
# dwPrefMaxLen : DWORD -> DWORD
# lpdwEntriesRead : DWORD* out -> LPVOID
# lpdwTotalEntries : DWORD* out -> LPVOID
# lpdwResumeHandle : DWORD* optional -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。