SetupDiGetClassDevsExW

// 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)>
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。

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。

const std = @import("std");

extern "setupapi" fn SetupDiGetClassDevsExW(
    ClassGuid: [*c]GUID, // GUID* optional
    Enumerator: [*c]const u16, // LPCWSTR optional
    hwndParent: ?*anyopaque, // HWND optional
    Flags: u32, // SETUP_DI_GET_CLASS_DEVS_FLAGS
    DeviceInfoSet: isize, // HDEVINFO optional
    MachineName: [*c]const u16, // LPCWSTR optional
    Reserved: ?*anyopaque // void* optional
) callconv(std.os.windows.WINAPI) isize;
// Unicode(-W): UTF-16LE のヌル終端バッファ([*c]const u16)を渡す。

proc SetupDiGetClassDevsExW(
    ClassGuid: ptr GUID,  # GUID* optional
    Enumerator: WideCString,  # LPCWSTR optional
    hwndParent: pointer,  # HWND optional
    Flags: uint32,  # SETUP_DI_GET_CLASS_DEVS_FLAGS
    DeviceInfoSet: int,  # HDEVINFO optional
    MachineName: WideCString,  # LPCWSTR optional
    Reserved: pointer  # void* optional
): int {.importc: "SetupDiGetClassDevsExW", stdcall, dynlib: "SETUPAPI.dll".}
# Unicode(-W): WideCString は newWideCString("...") で生成。

pragma(lib, "setupapi");
extern(Windows)
ptrdiff_t SetupDiGetClassDevsExW(
    GUID* ClassGuid,   // GUID* optional
    const(wchar)* Enumerator,   // LPCWSTR optional
    void* hwndParent,   // HWND optional
    uint Flags,   // SETUP_DI_GET_CLASS_DEVS_FLAGS
    ptrdiff_t DeviceInfoSet,   // HDEVINFO optional
    const(wchar)* MachineName,   // LPCWSTR optional
    void* Reserved   // void* optional
);

ccall((:SetupDiGetClassDevsExW, "SETUPAPI.dll"), stdcall, Int,
      (Ptr{GUID}, Cwstring, Ptr{Cvoid}, UInt32, Int, Cwstring, Ptr{Cvoid}),
      ClassGuid, Enumerator, hwndParent, Flags, DeviceInfoSet, MachineName, Reserved)
# ClassGuid : GUID* optional -> Ptr{GUID}
# Enumerator : LPCWSTR optional -> Cwstring
# hwndParent : HWND optional -> Ptr{Cvoid}
# Flags : SETUP_DI_GET_CLASS_DEVS_FLAGS -> UInt32
# DeviceInfoSet : HDEVINFO optional -> Int
# MachineName : LPCWSTR optional -> Cwstring
# Reserved : void* optional -> Ptr{Cvoid}
# 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[[
intptr_t SetupDiGetClassDevsExW(
    void* ClassGuid,
    const uint16_t* Enumerator,
    void* hwndParent,
    uint32_t Flags,
    intptr_t DeviceInfoSet,
    const uint16_t* MachineName,
    void* Reserved);
]]
local setupapi = ffi.load("setupapi")
-- setupapi.SetupDiGetClassDevsExW(ClassGuid, Enumerator, hwndParent, Flags, DeviceInfoSet, MachineName, Reserved)
-- 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
-- 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('SETUPAPI.dll');
const SetupDiGetClassDevsExW = lib.func('__stdcall', 'SetupDiGetClassDevsExW', 'intptr_t', ['void *', 'str16', 'void *', 'uint32_t', 'intptr_t', 'str16', 'void *']);
// SetupDiGetClassDevsExW(ClassGuid, Enumerator, hwndParent, Flags, DeviceInfoSet, MachineName, Reserved)
// ClassGuid : GUID* optional -> 'void *'
// Enumerator : LPCWSTR optional -> 'str16'
// hwndParent : HWND optional -> 'void *'
// Flags : SETUP_DI_GET_CLASS_DEVS_FLAGS -> 'uint32_t'
// DeviceInfoSet : HDEVINFO optional -> 'intptr_t'
// MachineName : LPCWSTR optional -> 'str16'
// Reserved : void* optional -> 'void *'
// 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("SETUPAPI.dll", {
  SetupDiGetClassDevsExW: { parameters: ["pointer", "buffer", "pointer", "u32", "isize", "buffer", "pointer"], result: "isize" },
});
// lib.symbols.SetupDiGetClassDevsExW(ClassGuid, Enumerator, hwndParent, Flags, DeviceInfoSet, MachineName, Reserved)
// ClassGuid : GUID* optional -> "pointer"
// Enumerator : LPCWSTR optional -> "buffer"
// hwndParent : HWND optional -> "pointer"
// Flags : SETUP_DI_GET_CLASS_DEVS_FLAGS -> "u32"
// DeviceInfoSet : HDEVINFO optional -> "isize"
// MachineName : LPCWSTR optional -> "buffer"
// Reserved : void* optional -> "pointer"
// 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
intptr_t SetupDiGetClassDevsExW(
    void* ClassGuid,
    const uint16_t* Enumerator,
    void* hwndParent,
    uint32_t Flags,
    intptr_t DeviceInfoSet,
    const uint16_t* MachineName,
    void* Reserved);
C, "SETUPAPI.dll");
// $ffi->SetupDiGetClassDevsExW(ClassGuid, Enumerator, hwndParent, Flags, DeviceInfoSet, MachineName, Reserved);
// 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
// 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 Setupapi extends StdCallLibrary {
    Setupapi INSTANCE = Native.load("setupapi", Setupapi.class, W32APIOptions.UNICODE_OPTIONS);
    long SetupDiGetClassDevsExW(
        Pointer ClassGuid,   // GUID* optional
        WString Enumerator,   // LPCWSTR optional
        Pointer hwndParent,   // HWND optional
        int Flags,   // SETUP_DI_GET_CLASS_DEVS_FLAGS
        long DeviceInfoSet,   // HDEVINFO optional
        WString MachineName,   // LPCWSTR optional
        Pointer Reserved   // void* optional
    );
}
// Unicode(-W): WString(入力)/char[](出力)で UTF-16 をマーシャリング。

@[Link("setupapi")]
lib LibSETUPAPI
  fun SetupDiGetClassDevsExW = SetupDiGetClassDevsExW(
    ClassGuid : GUID*,   # GUID* optional
    Enumerator : UInt16*,   # LPCWSTR optional
    hwndParent : Void*,   # HWND optional
    Flags : UInt32,   # SETUP_DI_GET_CLASS_DEVS_FLAGS
    DeviceInfoSet : LibC::SSizeT,   # HDEVINFO optional
    MachineName : UInt16*,   # LPCWSTR optional
    Reserved : Void*   # void* optional
  ) : LibC::SSizeT
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 SetupDiGetClassDevsExWNative = IntPtr Function(Pointer<Void>, Pointer<Utf16>, Pointer<Void>, Uint32, IntPtr, Pointer<Utf16>, Pointer<Void>);
typedef SetupDiGetClassDevsExWDart = int Function(Pointer<Void>, Pointer<Utf16>, Pointer<Void>, int, int, Pointer<Utf16>, Pointer<Void>);
final SetupDiGetClassDevsExW = DynamicLibrary.open('SETUPAPI.dll')
    .lookupFunction<SetupDiGetClassDevsExWNative, SetupDiGetClassDevsExWDart>('SetupDiGetClassDevsExW');
// ClassGuid : GUID* optional -> Pointer<Void>
// Enumerator : LPCWSTR optional -> Pointer<Utf16>
// hwndParent : HWND optional -> Pointer<Void>
// Flags : SETUP_DI_GET_CLASS_DEVS_FLAGS -> Uint32
// DeviceInfoSet : HDEVINFO optional -> IntPtr
// MachineName : LPCWSTR optional -> Pointer<Utf16>
// Reserved : void* optional -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
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';

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

foreign import stdcall safe "SetupDiGetClassDevsExW"
  c_SetupDiGetClassDevsExW :: Ptr () -> CWString -> Ptr () -> Word32 -> CIntPtr -> CWString -> Ptr () -> IO CIntPtr
-- ClassGuid : GUID* optional -> Ptr ()
-- Enumerator : LPCWSTR optional -> CWString
-- hwndParent : HWND optional -> Ptr ()
-- Flags : SETUP_DI_GET_CLASS_DEVS_FLAGS -> Word32
-- DeviceInfoSet : HDEVINFO optional -> CIntPtr
-- MachineName : LPCWSTR optional -> CWString
-- Reserved : void* optional -> Ptr ()
-- 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 setupdigetclassdevsexw =
  foreign "SetupDiGetClassDevsExW"
    ((ptr void) @-> (ptr uint16_t) @-> (ptr void) @-> uint32_t @-> intptr_t @-> (ptr uint16_t) @-> (ptr void) @-> returning intptr_t)
(* ClassGuid : GUID* optional -> (ptr void) *)
(* Enumerator : LPCWSTR optional -> (ptr uint16_t) *)
(* hwndParent : HWND optional -> (ptr void) *)
(* Flags : SETUP_DI_GET_CLASS_DEVS_FLAGS -> uint32_t *)
(* DeviceInfoSet : HDEVINFO optional -> intptr_t *)
(* MachineName : LPCWSTR optional -> (ptr uint16_t) *)
(* Reserved : void* optional -> (ptr void) *)
(* 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 setupapi (t "SETUPAPI.dll"))
(cffi:use-foreign-library setupapi)

(cffi:defcfun ("SetupDiGetClassDevsExW" setup-di-get-class-devs-ex-w :convention :stdcall) :int64
  (class-guid :pointer)   ; GUID* optional
  (enumerator (:string :encoding :utf-16le))   ; LPCWSTR optional
  (hwnd-parent :pointer)   ; HWND optional
  (flags :uint32)   ; SETUP_DI_GET_CLASS_DEVS_FLAGS
  (device-info-set :int64)   ; HDEVINFO optional
  (machine-name (:string :encoding :utf-16le))   ; LPCWSTR optional
  (reserved :pointer))   ; void* optional
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $SetupDiGetClassDevsExW = Win32::API::More->new('SETUPAPI',
    'LPARAM SetupDiGetClassDevsExW(LPVOID ClassGuid, LPCWSTR Enumerator, HANDLE hwndParent, DWORD Flags, LPARAM DeviceInfoSet, LPCWSTR MachineName, LPVOID Reserved)');
# my $ret = $SetupDiGetClassDevsExW->Call($ClassGuid, $Enumerator, $hwndParent, $Flags, $DeviceInfoSet, $MachineName, $Reserved);
# ClassGuid : GUID* optional -> LPVOID
# Enumerator : LPCWSTR optional -> LPCWSTR
# hwndParent : HWND optional -> HANDLE
# Flags : SETUP_DI_GET_CLASS_DEVS_FLAGS -> DWORD
# DeviceInfoSet : HDEVINFO optional -> LPARAM
# MachineName : LPCWSTR optional -> LPCWSTR
# Reserved : void* optional -> LPVOID
# 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。