SetupSetDirectoryIdW

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

BOOL SetupSetDirectoryIdW(
    void* InfHandle,
    DWORD Id,
    LPCWSTR Directory   // optional
);

<DllImport("SETUPAPI.dll", CharSet:=CharSet.Unicode, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function SetupSetDirectoryIdW(
    InfHandle As IntPtr,   ' void*
    Id As UInteger,   ' DWORD
    <MarshalAs(UnmanagedType.LPWStr)> Directory As String   ' LPCWSTR optional
) As Boolean
End Function

' InfHandle : void*
' Id : DWORD
' Directory : LPCWSTR optional
Declare PtrSafe Function SetupSetDirectoryIdW Lib "setupapi" ( _
    ByVal InfHandle As LongPtr, _
    ByVal Id As Long, _
    ByVal Directory 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

SetupSetDirectoryIdW = ctypes.windll.setupapi.SetupSetDirectoryIdW
SetupSetDirectoryIdW.restype = wintypes.BOOL
SetupSetDirectoryIdW.argtypes = [
    ctypes.POINTER(None),  # InfHandle : void*
    wintypes.DWORD,  # Id : DWORD
    wintypes.LPCWSTR,  # Directory : LPCWSTR optional
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('SETUPAPI.dll')
SetupSetDirectoryIdW = Fiddle::Function.new(
  lib['SetupSetDirectoryIdW'],
  [
    Fiddle::TYPE_VOIDP,  # InfHandle : void*
    -Fiddle::TYPE_INT,  # Id : DWORD
    Fiddle::TYPE_VOIDP,  # Directory : LPCWSTR optional
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "setupapi")]
extern "system" {
    fn SetupSetDirectoryIdW(
        InfHandle: *mut (),  // void*
        Id: u32,  // DWORD
        Directory: *const u16  // LPCWSTR optional
    ) -> 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 SetupSetDirectoryIdW(IntPtr InfHandle, uint Id, [MarshalAs(UnmanagedType.LPWStr)] string Directory);
"@
$api = Add-Type -MemberDefinition $sig -Name 'SETUPAPI_SetupSetDirectoryIdW' -Namespace Win32 -PassThru
# $api::SetupSetDirectoryIdW(InfHandle, Id, Directory)

#uselib "SETUPAPI.dll"
#func global SetupSetDirectoryIdW "SetupSetDirectoryIdW" wptr, wptr, wptr
; SetupSetDirectoryIdW InfHandle, Id, Directory   ; 戻り値は stat
; InfHandle : void* -> "wptr"
; Id : DWORD -> "wptr"
; Directory : LPCWSTR 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。

#uselib "SETUPAPI.dll"
#cfunc global SetupSetDirectoryIdW "SetupSetDirectoryIdW" sptr, int, wstr
; res = SetupSetDirectoryIdW(InfHandle, Id, Directory)
; InfHandle : void* -> "sptr"
; Id : DWORD -> "int"
; Directory : LPCWSTR optional -> "wstr"

; BOOL SetupSetDirectoryIdW(void* InfHandle, DWORD Id, LPCWSTR Directory)
#uselib "SETUPAPI.dll"
#cfunc global SetupSetDirectoryIdW "SetupSetDirectoryIdW" intptr, int, wstr
; res = SetupSetDirectoryIdW(InfHandle, Id, Directory)
; InfHandle : void* -> "intptr"
; Id : DWORD -> "int"
; Directory : LPCWSTR optional -> "wstr"

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	setupapi = windows.NewLazySystemDLL("SETUPAPI.dll")
	procSetupSetDirectoryIdW = setupapi.NewProc("SetupSetDirectoryIdW")
)

// InfHandle (void*), Id (DWORD), Directory (LPCWSTR optional)
r1, _, err := procSetupSetDirectoryIdW.Call(
	uintptr(InfHandle),
	uintptr(Id),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(Directory))),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function SetupSetDirectoryIdW(
  InfHandle: Pointer;   // void*
  Id: DWORD;   // DWORD
  Directory: PWideChar   // LPCWSTR optional
): BOOL; stdcall;
  external 'SETUPAPI.dll' name 'SetupSetDirectoryIdW';

result := DllCall("SETUPAPI\SetupSetDirectoryIdW"
    , "Ptr", InfHandle   ; void*
    , "UInt", Id   ; DWORD
    , "WStr", Directory   ; LPCWSTR optional
    , "Int")   ; return: BOOL

●SetupSetDirectoryIdW(InfHandle, Id, Directory) = DLL("SETUPAPI.dll", "bool SetupSetDirectoryIdW(void*, dword, char*)")
# 呼び出し: SetupSetDirectoryIdW(InfHandle, Id, Directory)
# InfHandle : void* -> "void*"
# Id : DWORD -> "dword"
# Directory : LPCWSTR optional -> "char*"
# 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。