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CM_Get_Class_PropertyW

関数
デバイスセットアップクラスのデバイスプロパティを取得する。
DLLCFGMGR32.dll呼出規約winapi対応OSWindows Vista 以降
📘 Microsoft Learn (日本語) · English

シグネチャ

// CFGMGR32.dll
#include <windows.h>

CONFIGRET CM_Get_Class_PropertyW(
    const GUID* ClassGUID,
    const DEVPROPKEY* PropertyKey,
    DEVPROPTYPE* PropertyType,
    BYTE* PropertyBuffer,   // optional
    DWORD* PropertyBufferSize,
    DWORD ulFlags
);

パラメーター

名前型方向説明
ClassGUIDGUID*inプロパティを取得する対象デバイスクラスのGUIDへのポインタ。
PropertyKeyDEVPROPKEY*in取得する統合プロパティのキー(DEVPROPKEY)へのポインタ。
PropertyTypeDEVPROPTYPE*out取得値のデータ型(DEVPROPTYPE)を受け取る出力先ポインタ。
PropertyBufferBYTE*outoptionalプロパティ値を受け取る出力バッファへのポインタ。サイズ取得時はNULL可。
PropertyBufferSizeDWORD*inout入出力。バッファサイズ(バイト)を入力し、必要/書込サイズを受け取る。
ulFlagsDWORDinクラス種別を示すフラグ。CM_CLASS_PROPERTY_INSTALLER/INTERFACE等を指定する。

戻り値の型: CONFIGRET

各言語での呼び出し定義

// CFGMGR32.dll
#include <windows.h>

CONFIGRET CM_Get_Class_PropertyW(
    const GUID* ClassGUID,
    const DEVPROPKEY* PropertyKey,
    DEVPROPTYPE* PropertyType,
    BYTE* PropertyBuffer,   // optional
    DWORD* PropertyBufferSize,
    DWORD ulFlags
);
[DllImport("CFGMGR32.dll", ExactSpelling = true)]
static extern uint CM_Get_Class_PropertyW(
    ref Guid ClassGUID,   // GUID*
    IntPtr PropertyKey,   // DEVPROPKEY*
    out uint PropertyType,   // DEVPROPTYPE* out
    IntPtr PropertyBuffer,   // BYTE* optional, out
    ref uint PropertyBufferSize,   // DWORD* in/out
    uint ulFlags   // DWORD
);
<DllImport("CFGMGR32.dll", ExactSpelling:=True)>
Public Shared Function CM_Get_Class_PropertyW(
    ByRef ClassGUID As Guid,   ' GUID*
    PropertyKey As IntPtr,   ' DEVPROPKEY*
    <Out> ByRef PropertyType As UInteger,   ' DEVPROPTYPE* out
    PropertyBuffer As IntPtr,   ' BYTE* optional, out
    ByRef PropertyBufferSize As UInteger,   ' DWORD* in/out
    ulFlags As UInteger   ' DWORD
) As UInteger
End Function
' ClassGUID : GUID*
' PropertyKey : DEVPROPKEY*
' PropertyType : DEVPROPTYPE* out
' PropertyBuffer : BYTE* optional, out
' PropertyBufferSize : DWORD* in/out
' ulFlags : DWORD
Declare PtrSafe Function CM_Get_Class_PropertyW Lib "cfgmgr32" ( _
    ByVal ClassGUID As LongPtr, _
    ByVal PropertyKey As LongPtr, _
    ByRef PropertyType As Long, _
    ByVal PropertyBuffer As LongPtr, _
    ByRef PropertyBufferSize As Long, _
    ByVal ulFlags 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

CM_Get_Class_PropertyW = ctypes.windll.cfgmgr32.CM_Get_Class_PropertyW
CM_Get_Class_PropertyW.restype = wintypes.DWORD
CM_Get_Class_PropertyW.argtypes = [
    ctypes.c_void_p,  # ClassGUID : GUID*
    ctypes.c_void_p,  # PropertyKey : DEVPROPKEY*
    ctypes.c_void_p,  # PropertyType : DEVPROPTYPE* out
    ctypes.POINTER(ctypes.c_ubyte),  # PropertyBuffer : BYTE* optional, out
    ctypes.POINTER(wintypes.DWORD),  # PropertyBufferSize : DWORD* in/out
    wintypes.DWORD,  # ulFlags : DWORD
]
require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('CFGMGR32.dll')
CM_Get_Class_PropertyW = Fiddle::Function.new(
  lib['CM_Get_Class_PropertyW'],
  [
    Fiddle::TYPE_VOIDP,  # ClassGUID : GUID*
    Fiddle::TYPE_VOIDP,  # PropertyKey : DEVPROPKEY*
    Fiddle::TYPE_VOIDP,  # PropertyType : DEVPROPTYPE* out
    Fiddle::TYPE_VOIDP,  # PropertyBuffer : BYTE* optional, out
    Fiddle::TYPE_VOIDP,  # PropertyBufferSize : DWORD* in/out
    -Fiddle::TYPE_INT,  # ulFlags : DWORD
  ],
  -Fiddle::TYPE_INT)
#[link(name = "cfgmgr32")]
extern "system" {
    fn CM_Get_Class_PropertyW(
        ClassGUID: *const GUID,  // GUID*
        PropertyKey: *const DEVPROPKEY,  // DEVPROPKEY*
        PropertyType: *mut u32,  // DEVPROPTYPE* out
        PropertyBuffer: *mut u8,  // BYTE* optional, out
        PropertyBufferSize: *mut u32,  // DWORD* in/out
        ulFlags: u32  // DWORD
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.
$sig = @"
[DllImport("CFGMGR32.dll")]
public static extern uint CM_Get_Class_PropertyW(ref Guid ClassGUID, IntPtr PropertyKey, out uint PropertyType, IntPtr PropertyBuffer, ref uint PropertyBufferSize, uint ulFlags);
"@
$api = Add-Type -MemberDefinition $sig -Name 'CFGMGR32_CM_Get_Class_PropertyW' -Namespace Win32 -PassThru
# $api::CM_Get_Class_PropertyW(ClassGUID, PropertyKey, PropertyType, PropertyBuffer, PropertyBufferSize, ulFlags)
#uselib "CFGMGR32.dll"
#func global CM_Get_Class_PropertyW "CM_Get_Class_PropertyW" sptr, sptr, sptr, sptr, sptr, sptr
; CM_Get_Class_PropertyW varptr(ClassGUID), varptr(PropertyKey), varptr(PropertyType), varptr(PropertyBuffer), varptr(PropertyBufferSize), ulFlags   ; 戻り値は stat
; ClassGUID : GUID* -> "sptr"
; PropertyKey : DEVPROPKEY* -> "sptr"
; PropertyType : DEVPROPTYPE* out -> "sptr"
; PropertyBuffer : BYTE* optional, out -> "sptr"
; PropertyBufferSize : DWORD* in/out -> "sptr"
; ulFlags : 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。
出力引数: 
#uselib "CFGMGR32.dll"
#cfunc global CM_Get_Class_PropertyW "CM_Get_Class_PropertyW" var, var, var, var, var, int
; res = CM_Get_Class_PropertyW(ClassGUID, PropertyKey, PropertyType, PropertyBuffer, PropertyBufferSize, ulFlags)
; ClassGUID : GUID* -> "var"
; PropertyKey : DEVPROPKEY* -> "var"
; PropertyType : DEVPROPTYPE* out -> "var"
; PropertyBuffer : BYTE* optional, out -> "var"
; PropertyBufferSize : DWORD* in/out -> "var"
; ulFlags : DWORD -> "int"
; ※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_Get_Class_PropertyW(GUID* ClassGUID, DEVPROPKEY* PropertyKey, DEVPROPTYPE* PropertyType, BYTE* PropertyBuffer, DWORD* PropertyBufferSize, DWORD ulFlags)
#uselib "CFGMGR32.dll"
#cfunc global CM_Get_Class_PropertyW "CM_Get_Class_PropertyW" var, var, var, var, var, int
; res = CM_Get_Class_PropertyW(ClassGUID, PropertyKey, PropertyType, PropertyBuffer, PropertyBufferSize, ulFlags)
; ClassGUID : GUID* -> "var"
; PropertyKey : DEVPROPKEY* -> "var"
; PropertyType : DEVPROPTYPE* out -> "var"
; PropertyBuffer : BYTE* optional, out -> "var"
; PropertyBufferSize : DWORD* in/out -> "var"
; ulFlags : DWORD -> "int"
; ※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_Get_Class_PropertyW = cfgmgr32.NewProc("CM_Get_Class_PropertyW")
)

// ClassGUID (GUID*), PropertyKey (DEVPROPKEY*), PropertyType (DEVPROPTYPE* out), PropertyBuffer (BYTE* optional, out), PropertyBufferSize (DWORD* in/out), ulFlags (DWORD)
r1, _, err := procCM_Get_Class_PropertyW.Call(
	uintptr(ClassGUID),
	uintptr(PropertyKey),
	uintptr(PropertyType),
	uintptr(PropertyBuffer),
	uintptr(PropertyBufferSize),
	uintptr(ulFlags),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // CONFIGRET
function CM_Get_Class_PropertyW(
  ClassGUID: PGUID;   // GUID*
  PropertyKey: Pointer;   // DEVPROPKEY*
  PropertyType: Pointer;   // DEVPROPTYPE* out
  PropertyBuffer: Pointer;   // BYTE* optional, out
  PropertyBufferSize: Pointer;   // DWORD* in/out
  ulFlags: DWORD   // DWORD
): DWORD; stdcall;
  external 'CFGMGR32.dll' name 'CM_Get_Class_PropertyW';
result := DllCall("CFGMGR32\CM_Get_Class_PropertyW"
    , "Ptr", ClassGUID   ; GUID*
    , "Ptr", PropertyKey   ; DEVPROPKEY*
    , "Ptr", PropertyType   ; DEVPROPTYPE* out
    , "Ptr", PropertyBuffer   ; BYTE* optional, out
    , "Ptr", PropertyBufferSize   ; DWORD* in/out
    , "UInt", ulFlags   ; DWORD
    , "UInt")   ; return: CONFIGRET
●CM_Get_Class_PropertyW(ClassGUID, PropertyKey, PropertyType, PropertyBuffer, PropertyBufferSize, ulFlags) = DLL("CFGMGR32.dll", "dword CM_Get_Class_PropertyW(void*, void*, void*, void*, void*, dword)")
# 呼び出し: CM_Get_Class_PropertyW(ClassGUID, PropertyKey, PropertyType, PropertyBuffer, PropertyBufferSize, ulFlags)
# ClassGUID : GUID* -> "void*"
# PropertyKey : DEVPROPKEY* -> "void*"
# PropertyType : DEVPROPTYPE* out -> "void*"
# PropertyBuffer : BYTE* optional, out -> "void*"
# PropertyBufferSize : DWORD* in/out -> "void*"
# ulFlags : 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 "cfgmgr32" fn CM_Get_Class_PropertyW(
    ClassGUID: [*c]GUID, // GUID*
    PropertyKey: [*c]DEVPROPKEY, // DEVPROPKEY*
    PropertyType: [*c]u32, // DEVPROPTYPE* out
    PropertyBuffer: [*c]u8, // BYTE* optional, out
    PropertyBufferSize: [*c]u32, // DWORD* in/out
    ulFlags: u32 // DWORD
) callconv(std.os.windows.WINAPI) u32;
proc CM_Get_Class_PropertyW(
    ClassGUID: ptr GUID,  # GUID*
    PropertyKey: ptr DEVPROPKEY,  # DEVPROPKEY*
    PropertyType: ptr uint32,  # DEVPROPTYPE* out
    PropertyBuffer: ptr uint8,  # BYTE* optional, out
    PropertyBufferSize: ptr uint32,  # DWORD* in/out
    ulFlags: uint32  # DWORD
): uint32 {.importc: "CM_Get_Class_PropertyW", stdcall, dynlib: "CFGMGR32.dll".}
pragma(lib, "cfgmgr32");
extern(Windows)
uint CM_Get_Class_PropertyW(
    GUID* ClassGUID,   // GUID*
    DEVPROPKEY* PropertyKey,   // DEVPROPKEY*
    uint* PropertyType,   // DEVPROPTYPE* out
    ubyte* PropertyBuffer,   // BYTE* optional, out
    uint* PropertyBufferSize,   // DWORD* in/out
    uint ulFlags   // DWORD
);
ccall((:CM_Get_Class_PropertyW, "CFGMGR32.dll"), stdcall, UInt32,
      (Ptr{GUID}, Ptr{DEVPROPKEY}, Ptr{UInt32}, Ptr{UInt8}, Ptr{UInt32}, UInt32),
      ClassGUID, PropertyKey, PropertyType, PropertyBuffer, PropertyBufferSize, ulFlags)
# ClassGUID : GUID* -> Ptr{GUID}
# PropertyKey : DEVPROPKEY* -> Ptr{DEVPROPKEY}
# PropertyType : DEVPROPTYPE* out -> Ptr{UInt32}
# PropertyBuffer : BYTE* optional, out -> Ptr{UInt8}
# PropertyBufferSize : DWORD* in/out -> Ptr{UInt32}
# ulFlags : 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 CM_Get_Class_PropertyW(
    void* ClassGUID,
    void* PropertyKey,
    uint32_t* PropertyType,
    uint8_t* PropertyBuffer,
    uint32_t* PropertyBufferSize,
    uint32_t ulFlags);
]]
local cfgmgr32 = ffi.load("cfgmgr32")
-- cfgmgr32.CM_Get_Class_PropertyW(ClassGUID, PropertyKey, PropertyType, PropertyBuffer, PropertyBufferSize, ulFlags)
-- ClassGUID : GUID*
-- PropertyKey : DEVPROPKEY*
-- PropertyType : DEVPROPTYPE* out
-- PropertyBuffer : BYTE* optional, out
-- PropertyBufferSize : DWORD* in/out
-- ulFlags : 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('CFGMGR32.dll');
const CM_Get_Class_PropertyW = lib.func('__stdcall', 'CM_Get_Class_PropertyW', 'uint32_t', ['void *', 'void *', 'uint32_t *', 'uint8_t *', 'uint32_t *', 'uint32_t']);
// CM_Get_Class_PropertyW(ClassGUID, PropertyKey, PropertyType, PropertyBuffer, PropertyBufferSize, ulFlags)
// ClassGUID : GUID* -> 'void *'
// PropertyKey : DEVPROPKEY* -> 'void *'
// PropertyType : DEVPROPTYPE* out -> 'uint32_t *'
// PropertyBuffer : BYTE* optional, out -> 'uint8_t *'
// PropertyBufferSize : DWORD* in/out -> 'uint32_t *'
// ulFlags : 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("CFGMGR32.dll", {
  CM_Get_Class_PropertyW: { parameters: ["pointer", "pointer", "pointer", "pointer", "pointer", "u32"], result: "u32" },
});
// lib.symbols.CM_Get_Class_PropertyW(ClassGUID, PropertyKey, PropertyType, PropertyBuffer, PropertyBufferSize, ulFlags)
// ClassGUID : GUID* -> "pointer"
// PropertyKey : DEVPROPKEY* -> "pointer"
// PropertyType : DEVPROPTYPE* out -> "pointer"
// PropertyBuffer : BYTE* optional, out -> "pointer"
// PropertyBufferSize : DWORD* in/out -> "pointer"
// ulFlags : 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 CM_Get_Class_PropertyW(
    void* ClassGUID,
    void* PropertyKey,
    uint32_t* PropertyType,
    uint8_t* PropertyBuffer,
    uint32_t* PropertyBufferSize,
    uint32_t ulFlags);
C, "CFGMGR32.dll");
// $ffi->CM_Get_Class_PropertyW(ClassGUID, PropertyKey, PropertyType, PropertyBuffer, PropertyBufferSize, ulFlags);
// ClassGUID : GUID*
// PropertyKey : DEVPROPKEY*
// PropertyType : DEVPROPTYPE* out
// PropertyBuffer : BYTE* optional, out
// PropertyBufferSize : DWORD* in/out
// ulFlags : 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 Cfgmgr32 extends StdCallLibrary {
    Cfgmgr32 INSTANCE = Native.load("cfgmgr32", Cfgmgr32.class);
    int CM_Get_Class_PropertyW(
        Pointer ClassGUID,   // GUID*
        Pointer PropertyKey,   // DEVPROPKEY*
        IntByReference PropertyType,   // DEVPROPTYPE* out
        byte[] PropertyBuffer,   // BYTE* optional, out
        IntByReference PropertyBufferSize,   // DWORD* in/out
        int ulFlags   // DWORD
    );
}
@[Link("cfgmgr32")]
lib LibCFGMGR32
  fun CM_Get_Class_PropertyW = CM_Get_Class_PropertyW(
    ClassGUID : GUID*,   # GUID*
    PropertyKey : DEVPROPKEY*,   # DEVPROPKEY*
    PropertyType : UInt32*,   # DEVPROPTYPE* out
    PropertyBuffer : UInt8*,   # BYTE* optional, out
    PropertyBufferSize : UInt32*,   # DWORD* in/out
    ulFlags : 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 CM_Get_Class_PropertyWNative = Uint32 Function(Pointer<Void>, Pointer<Void>, Pointer<Uint32>, Pointer<Uint8>, Pointer<Uint32>, Uint32);
typedef CM_Get_Class_PropertyWDart = int Function(Pointer<Void>, Pointer<Void>, Pointer<Uint32>, Pointer<Uint8>, Pointer<Uint32>, int);
final CM_Get_Class_PropertyW = DynamicLibrary.open('CFGMGR32.dll')
    .lookupFunction<CM_Get_Class_PropertyWNative, CM_Get_Class_PropertyWDart>('CM_Get_Class_PropertyW');
// ClassGUID : GUID* -> Pointer<Void>
// PropertyKey : DEVPROPKEY* -> Pointer<Void>
// PropertyType : DEVPROPTYPE* out -> Pointer<Uint32>
// PropertyBuffer : BYTE* optional, out -> Pointer<Uint8>
// PropertyBufferSize : DWORD* in/out -> Pointer<Uint32>
// ulFlags : DWORD -> Uint32
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。
{$mode objfpc}{$H+}
function CM_Get_Class_PropertyW(
  ClassGUID: PGUID;   // GUID*
  PropertyKey: Pointer;   // DEVPROPKEY*
  PropertyType: Pointer;   // DEVPROPTYPE* out
  PropertyBuffer: Pointer;   // BYTE* optional, out
  PropertyBufferSize: Pointer;   // DWORD* in/out
  ulFlags: DWORD   // DWORD
): DWORD; stdcall;
  external 'CFGMGR32.dll' name 'CM_Get_Class_PropertyW';
import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "CM_Get_Class_PropertyW"
  c_CM_Get_Class_PropertyW :: Ptr () -> Ptr () -> Ptr Word32 -> Ptr Word8 -> Ptr Word32 -> Word32 -> IO Word32
-- ClassGUID : GUID* -> Ptr ()
-- PropertyKey : DEVPROPKEY* -> Ptr ()
-- PropertyType : DEVPROPTYPE* out -> Ptr Word32
-- PropertyBuffer : BYTE* optional, out -> Ptr Word8
-- PropertyBufferSize : DWORD* in/out -> Ptr Word32
-- ulFlags : 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 cm_get_class_propertyw =
  foreign "CM_Get_Class_PropertyW"
    ((ptr void) @-> (ptr void) @-> (ptr uint32_t) @-> (ptr uint8_t) @-> (ptr uint32_t) @-> uint32_t @-> returning uint32_t)
(* ClassGUID : GUID* -> (ptr void) *)
(* PropertyKey : DEVPROPKEY* -> (ptr void) *)
(* PropertyType : DEVPROPTYPE* out -> (ptr uint32_t) *)
(* PropertyBuffer : BYTE* optional, out -> (ptr uint8_t) *)
(* PropertyBufferSize : DWORD* in/out -> (ptr uint32_t) *)
(* ulFlags : 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 cfgmgr32 (t "CFGMGR32.dll"))
(cffi:use-foreign-library cfgmgr32)

(cffi:defcfun ("CM_Get_Class_PropertyW" cm-get-class-property-w :convention :stdcall) :uint32
  (class-guid :pointer)   ; GUID*
  (property-key :pointer)   ; DEVPROPKEY*
  (property-type :pointer)   ; DEVPROPTYPE* out
  (property-buffer :pointer)   ; BYTE* optional, out
  (property-buffer-size :pointer)   ; DWORD* in/out
  (ul-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 $CM_Get_Class_PropertyW = Win32::API::More->new('CFGMGR32',
    'DWORD CM_Get_Class_PropertyW(LPVOID ClassGUID, LPVOID PropertyKey, LPVOID PropertyType, LPVOID PropertyBuffer, LPVOID PropertyBufferSize, DWORD ulFlags)');
# my $ret = $CM_Get_Class_PropertyW->Call($ClassGUID, $PropertyKey, $PropertyType, $PropertyBuffer, $PropertyBufferSize, $ulFlags);
# ClassGUID : GUID* -> LPVOID
# PropertyKey : DEVPROPKEY* -> LPVOID
# PropertyType : DEVPROPTYPE* out -> LPVOID
# PropertyBuffer : BYTE* optional, out -> LPVOID
# PropertyBufferSize : DWORD* in/out -> LPVOID
# ulFlags : DWORD -> DWORD
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。

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