ホーム › Devices.DeviceAndDriverInstallation › SetupDiGetClassDevsExW

SetupDiGetClassDevsExW

関数

リモート対応で条件に合致するデバイス情報セットを取得する。

DLLSETUPAPI.dll文字セットUnicode (-W)呼出規約winapiSetLastErrorあり対応OSWindows 2000 以降

シグネチャ

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

HDEVINFO SetupDiGetClassDevsExW(
    const GUID* ClassGuid,   // optional
    LPCWSTR Enumerator,   // optional
    HWND hwndParent,   // optional
    SETUP_DI_GET_CLASS_DEVS_FLAGS Flags,
    HDEVINFO DeviceInfoSet,   // optional
    LPCWSTR MachineName,   // optional
    void* Reserved   // optional
);

パラメーター

名前	型	方向
ClassGuid	GUID*	inoptional
Enumerator	LPCWSTR	inoptional
hwndParent	HWND	inoptional
Flags	SETUP_DI_GET_CLASS_DEVS_FLAGS	in
DeviceInfoSet	HDEVINFO	inoptional
MachineName	LPCWSTR	inoptional
Reserved	void*	optional

戻り値の型: HDEVINFO

各言語での呼び出し定義

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

HDEVINFO SetupDiGetClassDevsExW(
    const GUID* ClassGuid,   // optional
    LPCWSTR Enumerator,   // optional
    HWND hwndParent,   // optional
    SETUP_DI_GET_CLASS_DEVS_FLAGS Flags,
    HDEVINFO DeviceInfoSet,   // optional
    LPCWSTR MachineName,   // optional
    void* Reserved   // optional
);

[DllImport("SETUPAPI.dll", CharSet = CharSet.Unicode, SetLastError = true, ExactSpelling = true)]
static extern IntPtr SetupDiGetClassDevsExW(
    IntPtr ClassGuid,   // GUID* optional
    [MarshalAs(UnmanagedType.LPWStr)] string Enumerator,   // LPCWSTR optional
    IntPtr hwndParent,   // HWND optional
    uint Flags,   // SETUP_DI_GET_CLASS_DEVS_FLAGS
    IntPtr DeviceInfoSet,   // HDEVINFO optional
    [MarshalAs(UnmanagedType.LPWStr)] string MachineName,   // LPCWSTR optional
    IntPtr Reserved   // void* optional
);

<DllImport("SETUPAPI.dll", CharSet:=CharSet.Unicode, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function SetupDiGetClassDevsExW(
    ClassGuid As IntPtr,   ' GUID* optional
    <MarshalAs(UnmanagedType.LPWStr)> Enumerator As String,   ' LPCWSTR optional
    hwndParent As IntPtr,   ' HWND optional
    Flags As UInteger,   ' SETUP_DI_GET_CLASS_DEVS_FLAGS
    DeviceInfoSet As IntPtr,   ' HDEVINFO optional
    <MarshalAs(UnmanagedType.LPWStr)> MachineName As String,   ' LPCWSTR optional
    Reserved As IntPtr   ' void* optional
) As IntPtr
End Function

' ClassGuid : GUID* optional
' Enumerator : LPCWSTR optional
' hwndParent : HWND optional
' Flags : SETUP_DI_GET_CLASS_DEVS_FLAGS
' DeviceInfoSet : HDEVINFO optional
' MachineName : LPCWSTR optional
' Reserved : void* optional
Declare PtrSafe Function SetupDiGetClassDevsExW Lib "setupapi" ( _
    ByVal ClassGuid As LongPtr, _
    ByVal Enumerator As LongPtr, _
    ByVal hwndParent As LongPtr, _
    ByVal Flags As Long, _
    ByVal DeviceInfoSet As LongPtr, _
    ByVal MachineName As LongPtr, _
    ByVal Reserved As LongPtr) As LongPtr
' 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

SetupDiGetClassDevsExW = ctypes.windll.setupapi.SetupDiGetClassDevsExW
SetupDiGetClassDevsExW.restype = ctypes.c_ssize_t
SetupDiGetClassDevsExW.argtypes = [
    ctypes.c_void_p,  # ClassGuid : GUID* optional
    wintypes.LPCWSTR,  # Enumerator : LPCWSTR optional
    wintypes.HANDLE,  # hwndParent : HWND optional
    wintypes.DWORD,  # Flags : SETUP_DI_GET_CLASS_DEVS_FLAGS
    ctypes.c_ssize_t,  # DeviceInfoSet : HDEVINFO optional
    wintypes.LPCWSTR,  # MachineName : LPCWSTR optional
    ctypes.POINTER(None),  # Reserved : void* optional
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('SETUPAPI.dll')
SetupDiGetClassDevsExW = Fiddle::Function.new(
  lib['SetupDiGetClassDevsExW'],
  [
    Fiddle::TYPE_VOIDP,  # ClassGuid : GUID* optional
    Fiddle::TYPE_VOIDP,  # Enumerator : LPCWSTR optional
    Fiddle::TYPE_VOIDP,  # hwndParent : HWND optional
    -Fiddle::TYPE_INT,  # Flags : SETUP_DI_GET_CLASS_DEVS_FLAGS
    Fiddle::TYPE_INTPTR_T,  # DeviceInfoSet : HDEVINFO optional
    Fiddle::TYPE_VOIDP,  # MachineName : LPCWSTR optional
    Fiddle::TYPE_VOIDP,  # Reserved : void* optional
  ],
  Fiddle::TYPE_INTPTR_T)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "setupapi")]
extern "system" {
    fn SetupDiGetClassDevsExW(
        ClassGuid: *const GUID,  // GUID* optional
        Enumerator: *const u16,  // LPCWSTR optional
        hwndParent: *mut core::ffi::c_void,  // HWND optional
        Flags: u32,  // SETUP_DI_GET_CLASS_DEVS_FLAGS
        DeviceInfoSet: isize,  // HDEVINFO optional
        MachineName: *const u16,  // LPCWSTR optional
        Reserved: *mut ()  // void* optional
    ) -> isize;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("SETUPAPI.dll", CharSet = CharSet.Unicode, SetLastError = true)]
public static extern IntPtr SetupDiGetClassDevsExW(IntPtr ClassGuid, [MarshalAs(UnmanagedType.LPWStr)] string Enumerator, IntPtr hwndParent, uint Flags, IntPtr DeviceInfoSet, [MarshalAs(UnmanagedType.LPWStr)] string MachineName, IntPtr Reserved);
"@
$api = Add-Type -MemberDefinition $sig -Name 'SETUPAPI_SetupDiGetClassDevsExW' -Namespace Win32 -PassThru
# $api::SetupDiGetClassDevsExW(ClassGuid, Enumerator, hwndParent, Flags, DeviceInfoSet, MachineName, Reserved)

#uselib "SETUPAPI.dll"
#func global SetupDiGetClassDevsExW "SetupDiGetClassDevsExW" wptr, wptr, wptr, wptr, wptr, wptr, wptr
; SetupDiGetClassDevsExW varptr(ClassGuid), Enumerator, hwndParent, Flags, DeviceInfoSet, MachineName, Reserved   ; 戻り値は stat
; ClassGuid : GUID* optional -> "wptr"
; Enumerator : LPCWSTR optional -> "wptr"
; hwndParent : HWND optional -> "wptr"
; Flags : SETUP_DI_GET_CLASS_DEVS_FLAGS -> "wptr"
; DeviceInfoSet : HDEVINFO optional -> "wptr"
; MachineName : LPCWSTR optional -> "wptr"
; Reserved : void* 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 "SETUPAPI.dll"
#cfunc global SetupDiGetClassDevsExW "SetupDiGetClassDevsExW" var, wstr, sptr, int, sptr, wstr, sptr
; res = SetupDiGetClassDevsExW(ClassGuid, Enumerator, hwndParent, Flags, DeviceInfoSet, MachineName, Reserved)
; ClassGuid : GUID* optional -> "var"
; Enumerator : LPCWSTR optional -> "wstr"
; hwndParent : HWND optional -> "sptr"
; Flags : SETUP_DI_GET_CLASS_DEVS_FLAGS -> "int"
; DeviceInfoSet : HDEVINFO optional -> "sptr"
; MachineName : LPCWSTR optional -> "wstr"
; Reserved : void* 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。#uselib "SETUPAPI.dll"
#cfunc global SetupDiGetClassDevsExW "SetupDiGetClassDevsExW" sptr, wstr, sptr, int, sptr, wstr, sptr
; res = SetupDiGetClassDevsExW(varptr(ClassGuid), Enumerator, hwndParent, Flags, DeviceInfoSet, MachineName, Reserved)
; ClassGuid : GUID* optional -> "sptr"
; Enumerator : LPCWSTR optional -> "wstr"
; hwndParent : HWND optional -> "sptr"
; Flags : SETUP_DI_GET_CLASS_DEVS_FLAGS -> "int"
; DeviceInfoSet : HDEVINFO optional -> "sptr"
; MachineName : LPCWSTR optional -> "wstr"
; Reserved : void* 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:

; HDEVINFO SetupDiGetClassDevsExW(GUID* ClassGuid, LPCWSTR Enumerator, HWND hwndParent, SETUP_DI_GET_CLASS_DEVS_FLAGS Flags, HDEVINFO DeviceInfoSet, LPCWSTR MachineName, void* Reserved)
#uselib "SETUPAPI.dll"
#cfunc global SetupDiGetClassDevsExW "SetupDiGetClassDevsExW" var, wstr, intptr, int, intptr, wstr, intptr
; res = SetupDiGetClassDevsExW(ClassGuid, Enumerator, hwndParent, Flags, DeviceInfoSet, MachineName, Reserved)
; ClassGuid : GUID* optional -> "var"
; Enumerator : LPCWSTR optional -> "wstr"
; hwndParent : HWND optional -> "intptr"
; Flags : SETUP_DI_GET_CLASS_DEVS_FLAGS -> "int"
; DeviceInfoSet : HDEVINFO optional -> "intptr"
; MachineName : LPCWSTR optional -> "wstr"
; Reserved : void* 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。; HDEVINFO SetupDiGetClassDevsExW(GUID* ClassGuid, LPCWSTR Enumerator, HWND hwndParent, SETUP_DI_GET_CLASS_DEVS_FLAGS Flags, HDEVINFO DeviceInfoSet, LPCWSTR MachineName, void* Reserved)
#uselib "SETUPAPI.dll"
#cfunc global SetupDiGetClassDevsExW "SetupDiGetClassDevsExW" intptr, wstr, intptr, int, intptr, wstr, intptr
; res = SetupDiGetClassDevsExW(varptr(ClassGuid), Enumerator, hwndParent, Flags, DeviceInfoSet, MachineName, Reserved)
; ClassGuid : GUID* optional -> "intptr"
; Enumerator : LPCWSTR optional -> "wstr"
; hwndParent : HWND optional -> "intptr"
; Flags : SETUP_DI_GET_CLASS_DEVS_FLAGS -> "int"
; DeviceInfoSet : HDEVINFO optional -> "intptr"
; MachineName : LPCWSTR optional -> "wstr"
; Reserved : void* 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 (
	setupapi = windows.NewLazySystemDLL("SETUPAPI.dll")
	procSetupDiGetClassDevsExW = setupapi.NewProc("SetupDiGetClassDevsExW")
)

// ClassGuid (GUID* optional), Enumerator (LPCWSTR optional), hwndParent (HWND optional), Flags (SETUP_DI_GET_CLASS_DEVS_FLAGS), DeviceInfoSet (HDEVINFO optional), MachineName (LPCWSTR optional), Reserved (void* optional)
r1, _, err := procSetupDiGetClassDevsExW.Call(
	uintptr(ClassGuid),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(Enumerator))),
	uintptr(hwndParent),
	uintptr(Flags),
	uintptr(DeviceInfoSet),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(MachineName))),
	uintptr(Reserved),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HDEVINFO

function SetupDiGetClassDevsExW(
  ClassGuid: PGUID;   // GUID* optional
  Enumerator: PWideChar;   // LPCWSTR optional
  hwndParent: THandle;   // HWND optional
  Flags: DWORD;   // SETUP_DI_GET_CLASS_DEVS_FLAGS
  DeviceInfoSet: NativeInt;   // HDEVINFO optional
  MachineName: PWideChar;   // LPCWSTR optional
  Reserved: Pointer   // void* optional
): NativeInt; stdcall;
  external 'SETUPAPI.dll' name 'SetupDiGetClassDevsExW';

result := DllCall("SETUPAPI\SetupDiGetClassDevsExW"
    , "Ptr", ClassGuid   ; GUID* optional
    , "WStr", Enumerator   ; LPCWSTR optional
    , "Ptr", hwndParent   ; HWND optional
    , "UInt", Flags   ; SETUP_DI_GET_CLASS_DEVS_FLAGS
    , "Ptr", DeviceInfoSet   ; HDEVINFO optional
    , "WStr", MachineName   ; LPCWSTR optional
    , "Ptr", Reserved   ; void* optional
    , "Ptr")   ; return: HDEVINFO

●SetupDiGetClassDevsExW(ClassGuid, Enumerator, hwndParent, Flags, DeviceInfoSet, MachineName, Reserved) = DLL("SETUPAPI.dll", "int SetupDiGetClassDevsExW(void*, char*, void*, dword, int, char*, void*)")
# 呼び出し: SetupDiGetClassDevsExW(ClassGuid, Enumerator, hwndParent, Flags, DeviceInfoSet, MachineName, Reserved)
# ClassGuid : GUID* optional -> "void*"
# Enumerator : LPCWSTR optional -> "char*"
# hwndParent : HWND optional -> "void*"
# Flags : SETUP_DI_GET_CLASS_DEVS_FLAGS -> "dword"
# DeviceInfoSet : HDEVINFO optional -> "int"
# MachineName : LPCWSTR optional -> "char*"
# Reserved : void* 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)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。