SetupQuerySourceListW

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

BOOL SetupQuerySourceListW(
    DWORD Flags,
    LPCWSTR** List,
    DWORD* Count
);

<DllImport("SETUPAPI.dll", CharSet:=CharSet.Unicode, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function SetupQuerySourceListW(
    Flags As UInteger,   ' DWORD
    List As IntPtr,   ' LPCWSTR** out
    <Out> ByRef Count As UInteger   ' DWORD* out
) As Boolean
End Function

' Flags : DWORD
' List : LPCWSTR** out
' Count : DWORD* out
Declare PtrSafe Function SetupQuerySourceListW Lib "setupapi" ( _
    ByVal Flags As Long, _
    ByVal List As LongPtr, _
    ByRef Count As Long) 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

SetupQuerySourceListW = ctypes.windll.setupapi.SetupQuerySourceListW
SetupQuerySourceListW.restype = wintypes.BOOL
SetupQuerySourceListW.argtypes = [
    wintypes.DWORD,  # Flags : DWORD
    ctypes.c_void_p,  # List : LPCWSTR** out
    ctypes.POINTER(wintypes.DWORD),  # Count : DWORD* out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('SETUPAPI.dll')
SetupQuerySourceListW = Fiddle::Function.new(
  lib['SetupQuerySourceListW'],
  [
    -Fiddle::TYPE_INT,  # Flags : DWORD
    Fiddle::TYPE_VOIDP,  # List : LPCWSTR** out
    Fiddle::TYPE_VOIDP,  # Count : DWORD* out
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "setupapi")]
extern "system" {
    fn SetupQuerySourceListW(
        Flags: u32,  // DWORD
        List: *const *const *const u16,  // LPCWSTR** out
        Count: *mut u32  // DWORD* 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 SetupQuerySourceListW(uint Flags, IntPtr List, out uint Count);
"@
$api = Add-Type -MemberDefinition $sig -Name 'SETUPAPI_SetupQuerySourceListW' -Namespace Win32 -PassThru
# $api::SetupQuerySourceListW(Flags, List, Count)

#uselib "SETUPAPI.dll"
#func global SetupQuerySourceListW "SetupQuerySourceListW" wptr, wptr, wptr
; SetupQuerySourceListW Flags, varptr(List), varptr(Count)   ; 戻り値は stat
; Flags : DWORD -> "wptr"
; List : LPCWSTR** out -> "wptr"
; Count : DWORD* 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。

#uselib "SETUPAPI.dll"
#cfunc global SetupQuerySourceListW "SetupQuerySourceListW" int, var, var
; res = SetupQuerySourceListW(Flags, List, Count)
; Flags : DWORD -> "int"
; List : LPCWSTR** out -> "var"
; Count : DWORD* out -> "var"
; ※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。

; BOOL SetupQuerySourceListW(DWORD Flags, LPCWSTR** List, DWORD* Count)
#uselib "SETUPAPI.dll"
#cfunc global SetupQuerySourceListW "SetupQuerySourceListW" int, var, var
; res = SetupQuerySourceListW(Flags, List, Count)
; Flags : DWORD -> "int"
; List : LPCWSTR** out -> "var"
; Count : DWORD* out -> "var"
; ※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 (
	setupapi = windows.NewLazySystemDLL("SETUPAPI.dll")
	procSetupQuerySourceListW = setupapi.NewProc("SetupQuerySourceListW")
)

// Flags (DWORD), List (LPCWSTR** out), Count (DWORD* out)
r1, _, err := procSetupQuerySourceListW.Call(
	uintptr(Flags),
	uintptr(List),
	uintptr(Count),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function SetupQuerySourceListW(
  Flags: DWORD;   // DWORD
  List: PPWideChar;   // LPCWSTR** out
  Count: Pointer   // DWORD* out
): BOOL; stdcall;
  external 'SETUPAPI.dll' name 'SetupQuerySourceListW';

result := DllCall("SETUPAPI\SetupQuerySourceListW"
    , "UInt", Flags   ; DWORD
    , "Ptr", List   ; LPCWSTR** out
    , "Ptr", Count   ; DWORD* out
    , "Int")   ; return: BOOL

●SetupQuerySourceListW(Flags, List, Count) = DLL("SETUPAPI.dll", "bool SetupQuerySourceListW(dword, void*, void*)")
# 呼び出し: SetupQuerySourceListW(Flags, List, Count)
# Flags : DWORD -> "dword"
# List : LPCWSTR** out -> "void*"
# Count : DWORD* 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。