SetupDiGetINFClassW

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

BOOL SetupDiGetINFClassW(
    LPCWSTR InfName,
    GUID* ClassGuid,
    LPWSTR ClassName,
    DWORD ClassNameSize,
    DWORD* RequiredSize   // optional
);

<DllImport("SETUPAPI.dll", CharSet:=CharSet.Unicode, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function SetupDiGetINFClassW(
    <MarshalAs(UnmanagedType.LPWStr)> InfName As String,   ' LPCWSTR
    <Out> ByRef ClassGuid As Guid,   ' GUID* out
    <MarshalAs(UnmanagedType.LPWStr)> ClassName As System.Text.StringBuilder,   ' LPWSTR out
    ClassNameSize As UInteger,   ' DWORD
    RequiredSize As IntPtr   ' DWORD* optional, out
) As <MarshalAs(UnmanagedType.Bool)> Boolean
End Function

' InfName : LPCWSTR
' ClassGuid : GUID* out
' ClassName : LPWSTR out
' ClassNameSize : DWORD
' RequiredSize : DWORD* optional, out
Declare PtrSafe Function SetupDiGetINFClassW Lib "setupapi" ( _
    ByVal InfName As LongPtr, _
    ByVal ClassGuid As LongPtr, _
    ByVal ClassName As LongPtr, _
    ByVal ClassNameSize As Long, _
    ByVal RequiredSize 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

SetupDiGetINFClassW = ctypes.windll.setupapi.SetupDiGetINFClassW
SetupDiGetINFClassW.restype = wintypes.BOOL
SetupDiGetINFClassW.argtypes = [
    wintypes.LPCWSTR,  # InfName : LPCWSTR
    ctypes.c_void_p,  # ClassGuid : GUID* out
    wintypes.LPWSTR,  # ClassName : LPWSTR out
    wintypes.DWORD,  # ClassNameSize : DWORD
    ctypes.POINTER(wintypes.DWORD),  # RequiredSize : DWORD* optional, out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('SETUPAPI.dll')
SetupDiGetINFClassW = Fiddle::Function.new(
  lib['SetupDiGetINFClassW'],
  [
    Fiddle::TYPE_VOIDP,  # InfName : LPCWSTR
    Fiddle::TYPE_VOIDP,  # ClassGuid : GUID* out
    Fiddle::TYPE_VOIDP,  # ClassName : LPWSTR out
    -Fiddle::TYPE_INT,  # ClassNameSize : DWORD
    Fiddle::TYPE_VOIDP,  # RequiredSize : DWORD* optional, out
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "setupapi")]
extern "system" {
    fn SetupDiGetINFClassW(
        InfName: *const u16,  // LPCWSTR
        ClassGuid: *mut GUID,  // GUID* out
        ClassName: *mut u16,  // LPWSTR out
        ClassNameSize: u32,  // DWORD
        RequiredSize: *mut u32  // DWORD* optional, out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("SETUPAPI.dll", CharSet = CharSet.Unicode, SetLastError = true)]
public static extern bool SetupDiGetINFClassW([MarshalAs(UnmanagedType.LPWStr)] string InfName, out Guid ClassGuid, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder ClassName, uint ClassNameSize, IntPtr RequiredSize);
"@
$api = Add-Type -MemberDefinition $sig -Name 'SETUPAPI_SetupDiGetINFClassW' -Namespace Win32 -PassThru
# $api::SetupDiGetINFClassW(InfName, ClassGuid, ClassName, ClassNameSize, RequiredSize)

#uselib "SETUPAPI.dll"
#func global SetupDiGetINFClassW "SetupDiGetINFClassW" wptr, wptr, wptr, wptr, wptr
; SetupDiGetINFClassW InfName, varptr(ClassGuid), varptr(ClassName), ClassNameSize, varptr(RequiredSize)   ; 戻り値は stat
; InfName : LPCWSTR -> "wptr"
; ClassGuid : GUID* out -> "wptr"
; ClassName : LPWSTR out -> "wptr"
; ClassNameSize : DWORD -> "wptr"
; RequiredSize : DWORD* optional, out -> "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")
	procSetupDiGetINFClassW = setupapi.NewProc("SetupDiGetINFClassW")
)

// InfName (LPCWSTR), ClassGuid (GUID* out), ClassName (LPWSTR out), ClassNameSize (DWORD), RequiredSize (DWORD* optional, out)
r1, _, err := procSetupDiGetINFClassW.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(InfName))),
	uintptr(ClassGuid),
	uintptr(ClassName),
	uintptr(ClassNameSize),
	uintptr(RequiredSize),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function SetupDiGetINFClassW(
  InfName: PWideChar;   // LPCWSTR
  ClassGuid: PGUID;   // GUID* out
  ClassName: PWideChar;   // LPWSTR out
  ClassNameSize: DWORD;   // DWORD
  RequiredSize: Pointer   // DWORD* optional, out
): BOOL; stdcall;
  external 'SETUPAPI.dll' name 'SetupDiGetINFClassW';

result := DllCall("SETUPAPI\SetupDiGetINFClassW"
    , "WStr", InfName   ; LPCWSTR
    , "Ptr", ClassGuid   ; GUID* out
    , "Ptr", ClassName   ; LPWSTR out
    , "UInt", ClassNameSize   ; DWORD
    , "Ptr", RequiredSize   ; DWORD* optional, out
    , "Int")   ; return: BOOL

●SetupDiGetINFClassW(InfName, ClassGuid, ClassName, ClassNameSize, RequiredSize) = DLL("SETUPAPI.dll", "bool SetupDiGetINFClassW(char*, void*, char*, dword, void*)")
# 呼び出し: SetupDiGetINFClassW(InfName, ClassGuid, ClassName, ClassNameSize, RequiredSize)
# InfName : LPCWSTR -> "char*"
# ClassGuid : GUID* out -> "void*"
# ClassName : LPWSTR out -> "char*"
# ClassNameSize : DWORD -> "dword"
# RequiredSize : DWORD* optional, out -> "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 SetupDiGetINFClassW(
    InfName: [*c]const u16, // LPCWSTR
    ClassGuid: [*c]GUID, // GUID* out
    ClassName: [*c]u16, // LPWSTR out
    ClassNameSize: u32, // DWORD
    RequiredSize: [*c]u32 // DWORD* optional, out
) callconv(std.os.windows.WINAPI) i32;
// Unicode(-W): UTF-16LE のヌル終端バッファ([*c]const u16)を渡す。

proc SetupDiGetINFClassW(
    InfName: WideCString,  # LPCWSTR
    ClassGuid: ptr GUID,  # GUID* out
    ClassName: ptr uint16,  # LPWSTR out
    ClassNameSize: uint32,  # DWORD
    RequiredSize: ptr uint32  # DWORD* optional, out
): int32 {.importc: "SetupDiGetINFClassW", stdcall, dynlib: "SETUPAPI.dll".}
# Unicode(-W): WideCString は newWideCString("...") で生成。

pragma(lib, "setupapi");
extern(Windows)
int SetupDiGetINFClassW(
    const(wchar)* InfName,   // LPCWSTR
    GUID* ClassGuid,   // GUID* out
    wchar* ClassName,   // LPWSTR out
    uint ClassNameSize,   // DWORD
    uint* RequiredSize   // DWORD* optional, out
);

ccall((:SetupDiGetINFClassW, "SETUPAPI.dll"), stdcall, Int32,
      (Cwstring, Ptr{GUID}, Ptr{UInt16}, UInt32, Ptr{UInt32}),
      InfName, ClassGuid, ClassName, ClassNameSize, RequiredSize)
# InfName : LPCWSTR -> Cwstring
# ClassGuid : GUID* out -> Ptr{GUID}
# ClassName : LPWSTR out -> Ptr{UInt16}
# ClassNameSize : DWORD -> UInt32
# RequiredSize : DWORD* optional, out -> Ptr{UInt32}
# 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[[
int32_t SetupDiGetINFClassW(
    const uint16_t* InfName,
    void* ClassGuid,
    uint16_t* ClassName,
    uint32_t ClassNameSize,
    uint32_t* RequiredSize);
]]
local setupapi = ffi.load("setupapi")
-- setupapi.SetupDiGetINFClassW(InfName, ClassGuid, ClassName, ClassNameSize, RequiredSize)
-- InfName : LPCWSTR
-- ClassGuid : GUID* out
-- ClassName : LPWSTR out
-- ClassNameSize : DWORD
-- RequiredSize : DWORD* optional, out
-- 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 SetupDiGetINFClassW = lib.func('__stdcall', 'SetupDiGetINFClassW', 'int32_t', ['str16', 'void *', 'uint16_t *', 'uint32_t', 'uint32_t *']);
// SetupDiGetINFClassW(InfName, ClassGuid, ClassName, ClassNameSize, RequiredSize)
// InfName : LPCWSTR -> 'str16'
// ClassGuid : GUID* out -> 'void *'
// ClassName : LPWSTR out -> 'uint16_t *'
// ClassNameSize : DWORD -> 'uint32_t'
// RequiredSize : DWORD* optional, out -> '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("SETUPAPI.dll", {
  SetupDiGetINFClassW: { parameters: ["buffer", "pointer", "buffer", "u32", "pointer"], result: "i32" },
});
// lib.symbols.SetupDiGetINFClassW(InfName, ClassGuid, ClassName, ClassNameSize, RequiredSize)
// InfName : LPCWSTR -> "buffer"
// ClassGuid : GUID* out -> "pointer"
// ClassName : LPWSTR out -> "buffer"
// ClassNameSize : DWORD -> "u32"
// RequiredSize : DWORD* optional, out -> "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
int32_t SetupDiGetINFClassW(
    const uint16_t* InfName,
    void* ClassGuid,
    uint16_t* ClassName,
    uint32_t ClassNameSize,
    uint32_t* RequiredSize);
C, "SETUPAPI.dll");
// $ffi->SetupDiGetINFClassW(InfName, ClassGuid, ClassName, ClassNameSize, RequiredSize);
// InfName : LPCWSTR
// ClassGuid : GUID* out
// ClassName : LPWSTR out
// ClassNameSize : DWORD
// RequiredSize : DWORD* optional, out
// 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);
    boolean SetupDiGetINFClassW(
        WString InfName,   // LPCWSTR
        Pointer ClassGuid,   // GUID* out
        char[] ClassName,   // LPWSTR out
        int ClassNameSize,   // DWORD
        IntByReference RequiredSize   // DWORD* optional, out
    );
}
// Unicode(-W): WString(入力)/char[](出力)で UTF-16 をマーシャリング。

@[Link("setupapi")]
lib LibSETUPAPI
  fun SetupDiGetINFClassW = SetupDiGetINFClassW(
    InfName : UInt16*,   # LPCWSTR
    ClassGuid : GUID*,   # GUID* out
    ClassName : UInt16*,   # LPWSTR out
    ClassNameSize : UInt32,   # DWORD
    RequiredSize : UInt32*   # DWORD* optional, out
  ) : Int32
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 SetupDiGetINFClassWNative = Int32 Function(Pointer<Utf16>, Pointer<Void>, Pointer<Utf16>, Uint32, Pointer<Uint32>);
typedef SetupDiGetINFClassWDart = int Function(Pointer<Utf16>, Pointer<Void>, Pointer<Utf16>, int, Pointer<Uint32>);
final SetupDiGetINFClassW = DynamicLibrary.open('SETUPAPI.dll')
    .lookupFunction<SetupDiGetINFClassWNative, SetupDiGetINFClassWDart>('SetupDiGetINFClassW');
// InfName : LPCWSTR -> Pointer<Utf16>
// ClassGuid : GUID* out -> Pointer<Void>
// ClassName : LPWSTR out -> Pointer<Utf16>
// ClassNameSize : DWORD -> Uint32
// RequiredSize : DWORD* optional, out -> Pointer<Uint32>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function SetupDiGetINFClassW(
  InfName: PWideChar;   // LPCWSTR
  ClassGuid: PGUID;   // GUID* out
  ClassName: PWideChar;   // LPWSTR out
  ClassNameSize: DWORD;   // DWORD
  RequiredSize: Pointer   // DWORD* optional, out
): BOOL; stdcall;
  external 'SETUPAPI.dll' name 'SetupDiGetINFClassW';

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

foreign import stdcall safe "SetupDiGetINFClassW"
  c_SetupDiGetINFClassW :: CWString -> Ptr () -> CWString -> Word32 -> Ptr Word32 -> IO CInt
-- InfName : LPCWSTR -> CWString
-- ClassGuid : GUID* out -> Ptr ()
-- ClassName : LPWSTR out -> CWString
-- ClassNameSize : DWORD -> Word32
-- RequiredSize : DWORD* optional, out -> 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 setupdigetinfclassw =
  foreign "SetupDiGetINFClassW"
    ((ptr uint16_t) @-> (ptr void) @-> (ptr uint16_t) @-> uint32_t @-> (ptr uint32_t) @-> returning int32_t)
(* InfName : LPCWSTR -> (ptr uint16_t) *)
(* ClassGuid : GUID* out -> (ptr void) *)
(* ClassName : LPWSTR out -> (ptr uint16_t) *)
(* ClassNameSize : DWORD -> uint32_t *)
(* RequiredSize : DWORD* optional, out -> (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 setupapi (t "SETUPAPI.dll"))
(cffi:use-foreign-library setupapi)

(cffi:defcfun ("SetupDiGetINFClassW" setup-di-get-infclass-w :convention :stdcall) :int32
  (inf-name (:string :encoding :utf-16le))   ; LPCWSTR
  (class-guid :pointer)   ; GUID* out
  (class-name :pointer)   ; LPWSTR out
  (class-name-size :uint32)   ; DWORD
  (required-size :pointer))   ; DWORD* optional, out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $SetupDiGetINFClassW = Win32::API::More->new('SETUPAPI',
    'BOOL SetupDiGetINFClassW(LPCWSTR InfName, LPVOID ClassGuid, LPWSTR ClassName, DWORD ClassNameSize, LPVOID RequiredSize)');
# my $ret = $SetupDiGetINFClassW->Call($InfName, $ClassGuid, $ClassName, $ClassNameSize, $RequiredSize);
# InfName : LPCWSTR -> LPCWSTR
# ClassGuid : GUID* out -> LPVOID
# ClassName : LPWSTR out -> LPWSTR
# ClassNameSize : DWORD -> DWORD
# RequiredSize : DWORD* optional, out -> 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。