SHRegGetBoolUSValueW

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

BOOL SHRegGetBoolUSValueW(
    LPCWSTR pszSubKey,
    LPCWSTR pszValue,   // optional
    BOOL fIgnoreHKCU,
    BOOL fDefault
);

<DllImport("SHLWAPI.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function SHRegGetBoolUSValueW(
    <MarshalAs(UnmanagedType.LPWStr)> pszSubKey As String,   ' LPCWSTR
    <MarshalAs(UnmanagedType.LPWStr)> pszValue As String,   ' LPCWSTR optional
    fIgnoreHKCU As Boolean,   ' BOOL
    fDefault As Boolean   ' BOOL
) As Boolean
End Function

' pszSubKey : LPCWSTR
' pszValue : LPCWSTR optional
' fIgnoreHKCU : BOOL
' fDefault : BOOL
Declare PtrSafe Function SHRegGetBoolUSValueW Lib "shlwapi" ( _
    ByVal pszSubKey As LongPtr, _
    ByVal pszValue As LongPtr, _
    ByVal fIgnoreHKCU As Long, _
    ByVal fDefault 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

SHRegGetBoolUSValueW = ctypes.windll.shlwapi.SHRegGetBoolUSValueW
SHRegGetBoolUSValueW.restype = wintypes.BOOL
SHRegGetBoolUSValueW.argtypes = [
    wintypes.LPCWSTR,  # pszSubKey : LPCWSTR
    wintypes.LPCWSTR,  # pszValue : LPCWSTR optional
    wintypes.BOOL,  # fIgnoreHKCU : BOOL
    wintypes.BOOL,  # fDefault : BOOL
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('SHLWAPI.dll')
SHRegGetBoolUSValueW = Fiddle::Function.new(
  lib['SHRegGetBoolUSValueW'],
  [
    Fiddle::TYPE_VOIDP,  # pszSubKey : LPCWSTR
    Fiddle::TYPE_VOIDP,  # pszValue : LPCWSTR optional
    Fiddle::TYPE_INT,  # fIgnoreHKCU : BOOL
    Fiddle::TYPE_INT,  # fDefault : BOOL
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "shlwapi")]
extern "system" {
    fn SHRegGetBoolUSValueW(
        pszSubKey: *const u16,  // LPCWSTR
        pszValue: *const u16,  // LPCWSTR optional
        fIgnoreHKCU: i32,  // BOOL
        fDefault: i32  // BOOL
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("SHLWAPI.dll", CharSet = CharSet.Unicode)]
public static extern bool SHRegGetBoolUSValueW([MarshalAs(UnmanagedType.LPWStr)] string pszSubKey, [MarshalAs(UnmanagedType.LPWStr)] string pszValue, bool fIgnoreHKCU, bool fDefault);
"@
$api = Add-Type -MemberDefinition $sig -Name 'SHLWAPI_SHRegGetBoolUSValueW' -Namespace Win32 -PassThru
# $api::SHRegGetBoolUSValueW(pszSubKey, pszValue, fIgnoreHKCU, fDefault)

#uselib "SHLWAPI.dll"
#func global SHRegGetBoolUSValueW "SHRegGetBoolUSValueW" wptr, wptr, wptr, wptr
; SHRegGetBoolUSValueW pszSubKey, pszValue, fIgnoreHKCU, fDefault   ; 戻り値は stat
; pszSubKey : LPCWSTR -> "wptr"
; pszValue : LPCWSTR optional -> "wptr"
; fIgnoreHKCU : BOOL -> "wptr"
; fDefault : BOOL -> "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 "SHLWAPI.dll"
#cfunc global SHRegGetBoolUSValueW "SHRegGetBoolUSValueW" wstr, wstr, int, int
; res = SHRegGetBoolUSValueW(pszSubKey, pszValue, fIgnoreHKCU, fDefault)
; pszSubKey : LPCWSTR -> "wstr"
; pszValue : LPCWSTR optional -> "wstr"
; fIgnoreHKCU : BOOL -> "int"
; fDefault : BOOL -> "int"

; BOOL SHRegGetBoolUSValueW(LPCWSTR pszSubKey, LPCWSTR pszValue, BOOL fIgnoreHKCU, BOOL fDefault)
#uselib "SHLWAPI.dll"
#cfunc global SHRegGetBoolUSValueW "SHRegGetBoolUSValueW" wstr, wstr, int, int
; res = SHRegGetBoolUSValueW(pszSubKey, pszValue, fIgnoreHKCU, fDefault)
; pszSubKey : LPCWSTR -> "wstr"
; pszValue : LPCWSTR optional -> "wstr"
; fIgnoreHKCU : BOOL -> "int"
; fDefault : BOOL -> "int"

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

var (
	shlwapi = windows.NewLazySystemDLL("SHLWAPI.dll")
	procSHRegGetBoolUSValueW = shlwapi.NewProc("SHRegGetBoolUSValueW")
)

// pszSubKey (LPCWSTR), pszValue (LPCWSTR optional), fIgnoreHKCU (BOOL), fDefault (BOOL)
r1, _, err := procSHRegGetBoolUSValueW.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pszSubKey))),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pszValue))),
	uintptr(fIgnoreHKCU),
	uintptr(fDefault),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function SHRegGetBoolUSValueW(
  pszSubKey: PWideChar;   // LPCWSTR
  pszValue: PWideChar;   // LPCWSTR optional
  fIgnoreHKCU: BOOL;   // BOOL
  fDefault: BOOL   // BOOL
): BOOL; stdcall;
  external 'SHLWAPI.dll' name 'SHRegGetBoolUSValueW';

result := DllCall("SHLWAPI\SHRegGetBoolUSValueW"
    , "WStr", pszSubKey   ; LPCWSTR
    , "WStr", pszValue   ; LPCWSTR optional
    , "Int", fIgnoreHKCU   ; BOOL
    , "Int", fDefault   ; BOOL
    , "Int")   ; return: BOOL

●SHRegGetBoolUSValueW(pszSubKey, pszValue, fIgnoreHKCU, fDefault) = DLL("SHLWAPI.dll", "bool SHRegGetBoolUSValueW(char*, char*, bool, bool)")
# 呼び出し: SHRegGetBoolUSValueW(pszSubKey, pszValue, fIgnoreHKCU, fDefault)
# pszSubKey : LPCWSTR -> "char*"
# pszValue : LPCWSTR optional -> "char*"
# fIgnoreHKCU : BOOL -> "bool"
# fDefault : BOOL -> "bool"
# 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。