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CM_Register_Device_Interface_ExW

関数
リモートマシンでデバイスインターフェイスを登録する。
DLLCFGMGR32.dll文字セットUnicode (-W)呼出規約winapi
📘 Microsoft Learn (日本語) · English

シグネチャ

// CFGMGR32.dll  (Unicode / -W)
#include <windows.h>

CONFIGRET CM_Register_Device_Interface_ExW(
    DWORD dnDevInst,
    GUID* InterfaceClassGuid,
    LPCWSTR pszReference,   // optional
    LPWSTR pszDeviceInterface,
    DWORD* pulLength,
    DWORD ulFlags,
    INT_PTR hMachine   // optional
);

パラメーター

名前型方向説明
dnDevInstDWORDinインターフェイスを登録する対象デバイスノードのデバイスインスタンスハンドル。
InterfaceClassGuidGUID*in登録するデバイスインターフェイスクラスのGUIDへのポインタ。
pszReferenceLPCWSTRinoptional同一クラス内でインターフェイスを区別する参照文字列(Unicode)。不要ならNULL可。
pszDeviceInterfaceLPWSTRout生成されたシンボリックリンク名を受け取る出力バッファ(Unicode)。
pulLengthDWORD*inout入出力。pszDeviceInterfaceバッファの文字数を入力し、必要/書込文字数を受け取る。
ulFlagsDWORDin予約済みフラグ。常に0を指定する。
hMachineINT_PTRinoptional対象マシンへの接続ハンドル。ローカルの場合はNULL(0)を指定する。

戻り値の型: CONFIGRET

各言語での呼び出し定義

// CFGMGR32.dll  (Unicode / -W)
#include <windows.h>

CONFIGRET CM_Register_Device_Interface_ExW(
    DWORD dnDevInst,
    GUID* InterfaceClassGuid,
    LPCWSTR pszReference,   // optional
    LPWSTR pszDeviceInterface,
    DWORD* pulLength,
    DWORD ulFlags,
    INT_PTR hMachine   // optional
);
[DllImport("CFGMGR32.dll", CharSet = CharSet.Unicode, ExactSpelling = true)]
static extern uint CM_Register_Device_Interface_ExW(
    uint dnDevInst,   // DWORD
    ref Guid InterfaceClassGuid,   // GUID*
    [MarshalAs(UnmanagedType.LPWStr)] string pszReference,   // LPCWSTR optional
    [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder pszDeviceInterface,   // LPWSTR out
    ref uint pulLength,   // DWORD* in/out
    uint ulFlags,   // DWORD
    IntPtr hMachine   // INT_PTR optional
);
<DllImport("CFGMGR32.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function CM_Register_Device_Interface_ExW(
    dnDevInst As UInteger,   ' DWORD
    ByRef InterfaceClassGuid As Guid,   ' GUID*
    <MarshalAs(UnmanagedType.LPWStr)> pszReference As String,   ' LPCWSTR optional
    <MarshalAs(UnmanagedType.LPWStr)> pszDeviceInterface As System.Text.StringBuilder,   ' LPWSTR out
    ByRef pulLength As UInteger,   ' DWORD* in/out
    ulFlags As UInteger,   ' DWORD
    hMachine As IntPtr   ' INT_PTR optional
) As UInteger
End Function
' dnDevInst : DWORD
' InterfaceClassGuid : GUID*
' pszReference : LPCWSTR optional
' pszDeviceInterface : LPWSTR out
' pulLength : DWORD* in/out
' ulFlags : DWORD
' hMachine : INT_PTR optional
Declare PtrSafe Function CM_Register_Device_Interface_ExW Lib "cfgmgr32" ( _
    ByVal dnDevInst As Long, _
    ByVal InterfaceClassGuid As LongPtr, _
    ByVal pszReference As LongPtr, _
    ByVal pszDeviceInterface As LongPtr, _
    ByRef pulLength As Long, _
    ByVal ulFlags As Long, _
    ByVal hMachine As LongPtr) As Long
' Unicode(W): 文字列は ByVal As LongPtr とし StrPtr(unicodeStr) を渡す
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。
import ctypes
from ctypes import wintypes

CM_Register_Device_Interface_ExW = ctypes.windll.cfgmgr32.CM_Register_Device_Interface_ExW
CM_Register_Device_Interface_ExW.restype = wintypes.DWORD
CM_Register_Device_Interface_ExW.argtypes = [
    wintypes.DWORD,  # dnDevInst : DWORD
    ctypes.c_void_p,  # InterfaceClassGuid : GUID*
    wintypes.LPCWSTR,  # pszReference : LPCWSTR optional
    wintypes.LPWSTR,  # pszDeviceInterface : LPWSTR out
    ctypes.POINTER(wintypes.DWORD),  # pulLength : DWORD* in/out
    wintypes.DWORD,  # ulFlags : DWORD
    ctypes.c_ssize_t,  # hMachine : INT_PTR optional
]
require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('CFGMGR32.dll')
CM_Register_Device_Interface_ExW = Fiddle::Function.new(
  lib['CM_Register_Device_Interface_ExW'],
  [
    -Fiddle::TYPE_INT,  # dnDevInst : DWORD
    Fiddle::TYPE_VOIDP,  # InterfaceClassGuid : GUID*
    Fiddle::TYPE_VOIDP,  # pszReference : LPCWSTR optional
    Fiddle::TYPE_VOIDP,  # pszDeviceInterface : LPWSTR out
    Fiddle::TYPE_VOIDP,  # pulLength : DWORD* in/out
    -Fiddle::TYPE_INT,  # ulFlags : DWORD
    Fiddle::TYPE_INTPTR_T,  # hMachine : INT_PTR optional
  ],
  -Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"
#[link(name = "cfgmgr32")]
extern "system" {
    fn CM_Register_Device_Interface_ExW(
        dnDevInst: u32,  // DWORD
        InterfaceClassGuid: *mut GUID,  // GUID*
        pszReference: *const u16,  // LPCWSTR optional
        pszDeviceInterface: *mut u16,  // LPWSTR out
        pulLength: *mut u32,  // DWORD* in/out
        ulFlags: u32,  // DWORD
        hMachine: isize  // INT_PTR optional
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.
$sig = @"
[DllImport("CFGMGR32.dll", CharSet = CharSet.Unicode)]
public static extern uint CM_Register_Device_Interface_ExW(uint dnDevInst, ref Guid InterfaceClassGuid, [MarshalAs(UnmanagedType.LPWStr)] string pszReference, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder pszDeviceInterface, ref uint pulLength, uint ulFlags, IntPtr hMachine);
"@
$api = Add-Type -MemberDefinition $sig -Name 'CFGMGR32_CM_Register_Device_Interface_ExW' -Namespace Win32 -PassThru
# $api::CM_Register_Device_Interface_ExW(dnDevInst, InterfaceClassGuid, pszReference, pszDeviceInterface, pulLength, ulFlags, hMachine)
#uselib "CFGMGR32.dll"
#func global CM_Register_Device_Interface_ExW "CM_Register_Device_Interface_ExW" wptr, wptr, wptr, wptr, wptr, wptr, wptr
; CM_Register_Device_Interface_ExW dnDevInst, varptr(InterfaceClassGuid), pszReference, varptr(pszDeviceInterface), varptr(pulLength), ulFlags, hMachine   ; 戻り値は stat
; dnDevInst : DWORD -> "wptr"
; InterfaceClassGuid : GUID* -> "wptr"
; pszReference : LPCWSTR optional -> "wptr"
; pszDeviceInterface : LPWSTR out -> "wptr"
; pulLength : DWORD* in/out -> "wptr"
; ulFlags : DWORD -> "wptr"
; hMachine : INT_PTR optional -> "wptr"
; ※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 "CFGMGR32.dll"
#cfunc global CM_Register_Device_Interface_ExW "CM_Register_Device_Interface_ExW" int, var, wstr, var, var, int, sptr
; res = CM_Register_Device_Interface_ExW(dnDevInst, InterfaceClassGuid, pszReference, pszDeviceInterface, pulLength, ulFlags, hMachine)
; dnDevInst : DWORD -> "int"
; InterfaceClassGuid : GUID* -> "var"
; pszReference : LPCWSTR optional -> "wstr"
; pszDeviceInterface : LPWSTR out -> "var"
; pulLength : DWORD* in/out -> "var"
; ulFlags : DWORD -> "int"
; hMachine : INT_PTR optional -> "sptr"
; ※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。
出力引数: 
; CONFIGRET CM_Register_Device_Interface_ExW(DWORD dnDevInst, GUID* InterfaceClassGuid, LPCWSTR pszReference, LPWSTR pszDeviceInterface, DWORD* pulLength, DWORD ulFlags, INT_PTR hMachine)
#uselib "CFGMGR32.dll"
#cfunc global CM_Register_Device_Interface_ExW "CM_Register_Device_Interface_ExW" int, var, wstr, var, var, int, intptr
; res = CM_Register_Device_Interface_ExW(dnDevInst, InterfaceClassGuid, pszReference, pszDeviceInterface, pulLength, ulFlags, hMachine)
; dnDevInst : DWORD -> "int"
; InterfaceClassGuid : GUID* -> "var"
; pszReference : LPCWSTR optional -> "wstr"
; pszDeviceInterface : LPWSTR out -> "var"
; pulLength : DWORD* in/out -> "var"
; ulFlags : DWORD -> "int"
; hMachine : INT_PTR optional -> "intptr"
; ※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 (
	cfgmgr32 = windows.NewLazySystemDLL("CFGMGR32.dll")
	procCM_Register_Device_Interface_ExW = cfgmgr32.NewProc("CM_Register_Device_Interface_ExW")
)

// dnDevInst (DWORD), InterfaceClassGuid (GUID*), pszReference (LPCWSTR optional), pszDeviceInterface (LPWSTR out), pulLength (DWORD* in/out), ulFlags (DWORD), hMachine (INT_PTR optional)
r1, _, err := procCM_Register_Device_Interface_ExW.Call(
	uintptr(dnDevInst),
	uintptr(InterfaceClassGuid),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pszReference))),
	uintptr(pszDeviceInterface),
	uintptr(pulLength),
	uintptr(ulFlags),
	uintptr(hMachine),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // CONFIGRET
function CM_Register_Device_Interface_ExW(
  dnDevInst: DWORD;   // DWORD
  InterfaceClassGuid: PGUID;   // GUID*
  pszReference: PWideChar;   // LPCWSTR optional
  pszDeviceInterface: PWideChar;   // LPWSTR out
  pulLength: Pointer;   // DWORD* in/out
  ulFlags: DWORD;   // DWORD
  hMachine: NativeInt   // INT_PTR optional
): DWORD; stdcall;
  external 'CFGMGR32.dll' name 'CM_Register_Device_Interface_ExW';
result := DllCall("CFGMGR32\CM_Register_Device_Interface_ExW"
    , "UInt", dnDevInst   ; DWORD
    , "Ptr", InterfaceClassGuid   ; GUID*
    , "WStr", pszReference   ; LPCWSTR optional
    , "Ptr", pszDeviceInterface   ; LPWSTR out
    , "Ptr", pulLength   ; DWORD* in/out
    , "UInt", ulFlags   ; DWORD
    , "Ptr", hMachine   ; INT_PTR optional
    , "UInt")   ; return: CONFIGRET
●CM_Register_Device_Interface_ExW(dnDevInst, InterfaceClassGuid, pszReference, pszDeviceInterface, pulLength, ulFlags, hMachine) = DLL("CFGMGR32.dll", "dword CM_Register_Device_Interface_ExW(dword, void*, char*, char*, void*, dword, int)")
# 呼び出し: CM_Register_Device_Interface_ExW(dnDevInst, InterfaceClassGuid, pszReference, pszDeviceInterface, pulLength, ulFlags, hMachine)
# dnDevInst : DWORD -> "dword"
# InterfaceClassGuid : GUID* -> "void*"
# pszReference : LPCWSTR optional -> "char*"
# pszDeviceInterface : LPWSTR out -> "char*"
# pulLength : DWORD* in/out -> "void*"
# ulFlags : DWORD -> "dword"
# hMachine : INT_PTR optional -> "int"
# 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)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。
const std = @import("std");

extern "cfgmgr32" fn CM_Register_Device_Interface_ExW(
    dnDevInst: u32, // DWORD
    InterfaceClassGuid: [*c]GUID, // GUID*
    pszReference: [*c]const u16, // LPCWSTR optional
    pszDeviceInterface: [*c]u16, // LPWSTR out
    pulLength: [*c]u32, // DWORD* in/out
    ulFlags: u32, // DWORD
    hMachine: isize // INT_PTR optional
) callconv(std.os.windows.WINAPI) u32;
// Unicode(-W): UTF-16LE のヌル終端バッファ([*c]const u16)を渡す。
proc CM_Register_Device_Interface_ExW(
    dnDevInst: uint32,  # DWORD
    InterfaceClassGuid: ptr GUID,  # GUID*
    pszReference: WideCString,  # LPCWSTR optional
    pszDeviceInterface: ptr uint16,  # LPWSTR out
    pulLength: ptr uint32,  # DWORD* in/out
    ulFlags: uint32,  # DWORD
    hMachine: int  # INT_PTR optional
): uint32 {.importc: "CM_Register_Device_Interface_ExW", stdcall, dynlib: "CFGMGR32.dll".}
# Unicode(-W): WideCString は newWideCString("...") で生成。
pragma(lib, "cfgmgr32");
extern(Windows)
uint CM_Register_Device_Interface_ExW(
    uint dnDevInst,   // DWORD
    GUID* InterfaceClassGuid,   // GUID*
    const(wchar)* pszReference,   // LPCWSTR optional
    wchar* pszDeviceInterface,   // LPWSTR out
    uint* pulLength,   // DWORD* in/out
    uint ulFlags,   // DWORD
    ptrdiff_t hMachine   // INT_PTR optional
);
ccall((:CM_Register_Device_Interface_ExW, "CFGMGR32.dll"), stdcall, UInt32,
      (UInt32, Ptr{GUID}, Cwstring, Ptr{UInt16}, Ptr{UInt32}, UInt32, Int),
      dnDevInst, InterfaceClassGuid, pszReference, pszDeviceInterface, pulLength, ulFlags, hMachine)
# dnDevInst : DWORD -> UInt32
# InterfaceClassGuid : GUID* -> Ptr{GUID}
# pszReference : LPCWSTR optional -> Cwstring
# pszDeviceInterface : LPWSTR out -> Ptr{UInt16}
# pulLength : DWORD* in/out -> Ptr{UInt32}
# ulFlags : DWORD -> UInt32
# hMachine : INT_PTR optional -> Int
# stdcall は 32bit のみ意味を持つ(x64 では無視)。
# Unicode(-W): Cwstring には transcode(UInt16, "...") 等で UTF-16 を渡す。
local ffi = require("ffi")
ffi.cdef[[
uint32_t CM_Register_Device_Interface_ExW(
    uint32_t dnDevInst,
    void* InterfaceClassGuid,
    const uint16_t* pszReference,
    uint16_t* pszDeviceInterface,
    uint32_t* pulLength,
    uint32_t ulFlags,
    intptr_t hMachine);
]]
local cfgmgr32 = ffi.load("cfgmgr32")
-- cfgmgr32.CM_Register_Device_Interface_ExW(dnDevInst, InterfaceClassGuid, pszReference, pszDeviceInterface, pulLength, ulFlags, hMachine)
-- dnDevInst : DWORD
-- InterfaceClassGuid : GUID*
-- pszReference : LPCWSTR optional
-- pszDeviceInterface : LPWSTR out
-- pulLength : DWORD* in/out
-- ulFlags : DWORD
-- hMachine : INT_PTR 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。
-- Unicode(-W): uint16_t* には UTF-16LE のバッファ(ffi.new("uint16_t[?]", ...))を渡す。
const koffi = require('koffi');
const lib = koffi.load('CFGMGR32.dll');
const CM_Register_Device_Interface_ExW = lib.func('__stdcall', 'CM_Register_Device_Interface_ExW', 'uint32_t', ['uint32_t', 'void *', 'str16', 'uint16_t *', 'uint32_t *', 'uint32_t', 'intptr_t']);
// CM_Register_Device_Interface_ExW(dnDevInst, InterfaceClassGuid, pszReference, pszDeviceInterface, pulLength, ulFlags, hMachine)
// dnDevInst : DWORD -> 'uint32_t'
// InterfaceClassGuid : GUID* -> 'void *'
// pszReference : LPCWSTR optional -> 'str16'
// pszDeviceInterface : LPWSTR out -> 'uint16_t *'
// pulLength : DWORD* in/out -> 'uint32_t *'
// ulFlags : DWORD -> 'uint32_t'
// hMachine : INT_PTR optional -> 'intptr_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("CFGMGR32.dll", {
  CM_Register_Device_Interface_ExW: { parameters: ["u32", "pointer", "buffer", "buffer", "pointer", "u32", "isize"], result: "u32" },
});
// lib.symbols.CM_Register_Device_Interface_ExW(dnDevInst, InterfaceClassGuid, pszReference, pszDeviceInterface, pulLength, ulFlags, hMachine)
// dnDevInst : DWORD -> "u32"
// InterfaceClassGuid : GUID* -> "pointer"
// pszReference : LPCWSTR optional -> "buffer"
// pszDeviceInterface : LPWSTR out -> "buffer"
// pulLength : DWORD* in/out -> "pointer"
// ulFlags : DWORD -> "u32"
// hMachine : INT_PTR optional -> "isize"
// 文字列は "buffer"。Unicode(-W) は new TextEncoder() ではなく UTF-16LE のバイト列(末尾に \x00\x00)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 CM_Register_Device_Interface_ExW(
    uint32_t dnDevInst,
    void* InterfaceClassGuid,
    const uint16_t* pszReference,
    uint16_t* pszDeviceInterface,
    uint32_t* pulLength,
    uint32_t ulFlags,
    intptr_t hMachine);
C, "CFGMGR32.dll");
// $ffi->CM_Register_Device_Interface_ExW(dnDevInst, InterfaceClassGuid, pszReference, pszDeviceInterface, pulLength, ulFlags, hMachine);
// dnDevInst : DWORD
// InterfaceClassGuid : GUID*
// pszReference : LPCWSTR optional
// pszDeviceInterface : LPWSTR out
// pulLength : DWORD* in/out
// ulFlags : DWORD
// hMachine : INT_PTR 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 Cfgmgr32 extends StdCallLibrary {
    Cfgmgr32 INSTANCE = Native.load("cfgmgr32", Cfgmgr32.class, W32APIOptions.UNICODE_OPTIONS);
    int CM_Register_Device_Interface_ExW(
        int dnDevInst,   // DWORD
        Pointer InterfaceClassGuid,   // GUID*
        WString pszReference,   // LPCWSTR optional
        char[] pszDeviceInterface,   // LPWSTR out
        IntByReference pulLength,   // DWORD* in/out
        int ulFlags,   // DWORD
        long hMachine   // INT_PTR optional
    );
}
// Unicode(-W): WString(入力)/char[](出力)で UTF-16 をマーシャリング。
@[Link("cfgmgr32")]
lib LibCFGMGR32
  fun CM_Register_Device_Interface_ExW = CM_Register_Device_Interface_ExW(
    dnDevInst : UInt32,   # DWORD
    InterfaceClassGuid : GUID*,   # GUID*
    pszReference : UInt16*,   # LPCWSTR optional
    pszDeviceInterface : UInt16*,   # LPWSTR out
    pulLength : UInt32*,   # DWORD* in/out
    ulFlags : UInt32,   # DWORD
    hMachine : LibC::SSizeT   # INT_PTR 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 CM_Register_Device_Interface_ExWNative = Uint32 Function(Uint32, Pointer<Void>, Pointer<Utf16>, Pointer<Utf16>, Pointer<Uint32>, Uint32, IntPtr);
typedef CM_Register_Device_Interface_ExWDart = int Function(int, Pointer<Void>, Pointer<Utf16>, Pointer<Utf16>, Pointer<Uint32>, int, int);
final CM_Register_Device_Interface_ExW = DynamicLibrary.open('CFGMGR32.dll')
    .lookupFunction<CM_Register_Device_Interface_ExWNative, CM_Register_Device_Interface_ExWDart>('CM_Register_Device_Interface_ExW');
// dnDevInst : DWORD -> Uint32
// InterfaceClassGuid : GUID* -> Pointer<Void>
// pszReference : LPCWSTR optional -> Pointer<Utf16>
// pszDeviceInterface : LPWSTR out -> Pointer<Utf16>
// pulLength : DWORD* in/out -> Pointer<Uint32>
// ulFlags : DWORD -> Uint32
// hMachine : INT_PTR optional -> IntPtr
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。
{$mode objfpc}{$H+}
function CM_Register_Device_Interface_ExW(
  dnDevInst: DWORD;   // DWORD
  InterfaceClassGuid: PGUID;   // GUID*
  pszReference: PWideChar;   // LPCWSTR optional
  pszDeviceInterface: PWideChar;   // LPWSTR out
  pulLength: Pointer;   // DWORD* in/out
  ulFlags: DWORD;   // DWORD
  hMachine: NativeInt   // INT_PTR optional
): DWORD; stdcall;
  external 'CFGMGR32.dll' name 'CM_Register_Device_Interface_ExW';
import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "CM_Register_Device_Interface_ExW"
  c_CM_Register_Device_Interface_ExW :: Word32 -> Ptr () -> CWString -> CWString -> Ptr Word32 -> Word32 -> CIntPtr -> IO Word32
-- dnDevInst : DWORD -> Word32
-- InterfaceClassGuid : GUID* -> Ptr ()
-- pszReference : LPCWSTR optional -> CWString
-- pszDeviceInterface : LPWSTR out -> CWString
-- pulLength : DWORD* in/out -> Ptr Word32
-- ulFlags : DWORD -> Word32
-- hMachine : INT_PTR optional -> CIntPtr
-- 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 cm_register_device_interface_exw =
  foreign "CM_Register_Device_Interface_ExW"
    (uint32_t @-> (ptr void) @-> (ptr uint16_t) @-> (ptr uint16_t) @-> (ptr uint32_t) @-> uint32_t @-> intptr_t @-> returning uint32_t)
(* dnDevInst : DWORD -> uint32_t *)
(* InterfaceClassGuid : GUID* -> (ptr void) *)
(* pszReference : LPCWSTR optional -> (ptr uint16_t) *)
(* pszDeviceInterface : LPWSTR out -> (ptr uint16_t) *)
(* pulLength : DWORD* in/out -> (ptr uint32_t) *)
(* ulFlags : DWORD -> uint32_t *)
(* hMachine : INT_PTR optional -> intptr_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 cfgmgr32 (t "CFGMGR32.dll"))
(cffi:use-foreign-library cfgmgr32)

(cffi:defcfun ("CM_Register_Device_Interface_ExW" cm-register-device-interface-ex-w :convention :stdcall) :uint32
  (dn-dev-inst :uint32)   ; DWORD
  (interface-class-guid :pointer)   ; GUID*
  (psz-reference (:string :encoding :utf-16le))   ; LPCWSTR optional
  (psz-device-interface :pointer)   ; LPWSTR out
  (pul-length :pointer)   ; DWORD* in/out
  (ul-flags :uint32)   ; DWORD
  (h-machine :int64))   ; INT_PTR optional
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。
use Win32::API;
my $CM_Register_Device_Interface_ExW = Win32::API::More->new('CFGMGR32',
    'DWORD CM_Register_Device_Interface_ExW(DWORD dnDevInst, LPVOID InterfaceClassGuid, LPCWSTR pszReference, LPWSTR pszDeviceInterface, LPVOID pulLength, DWORD ulFlags, LPARAM hMachine)');
# my $ret = $CM_Register_Device_Interface_ExW->Call($dnDevInst, $InterfaceClassGuid, $pszReference, $pszDeviceInterface, $pulLength, $ulFlags, $hMachine);
# dnDevInst : DWORD -> DWORD
# InterfaceClassGuid : GUID* -> LPVOID
# pszReference : LPCWSTR optional -> LPCWSTR
# pszDeviceInterface : LPWSTR out -> LPWSTR
# pulLength : DWORD* in/out -> LPVOID
# ulFlags : DWORD -> DWORD
# hMachine : INT_PTR optional -> LPARAM
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。
# Unicode(-W): LPCWSTR/LPWSTR は Win32::API が UTF-16 変換を行う。

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