SHRegOpenUSKeyA

// SHLWAPI.dll  (ANSI / -A)
#include <windows.h>

WIN32_ERROR SHRegOpenUSKeyA(
    LPCSTR pszPath,
    DWORD samDesired,
    INT_PTR hRelativeUSKey,   // optional
    INT_PTR* phNewUSKey,
    BOOL fIgnoreHKCU
);

<DllImport("SHLWAPI.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function SHRegOpenUSKeyA(
    <MarshalAs(UnmanagedType.LPStr)> pszPath As String,   ' LPCSTR
    samDesired As UInteger,   ' DWORD
    hRelativeUSKey As IntPtr,   ' INT_PTR optional
    <Out> ByRef phNewUSKey As IntPtr,   ' INT_PTR* out
    fIgnoreHKCU As Boolean   ' BOOL
) As UInteger
End Function

' pszPath : LPCSTR
' samDesired : DWORD
' hRelativeUSKey : INT_PTR optional
' phNewUSKey : INT_PTR* out
' fIgnoreHKCU : BOOL
Declare PtrSafe Function SHRegOpenUSKeyA Lib "shlwapi" ( _
    ByVal pszPath As String, _
    ByVal samDesired As Long, _
    ByVal hRelativeUSKey As LongPtr, _
    ByRef phNewUSKey As LongPtr, _
    ByVal fIgnoreHKCU As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

SHRegOpenUSKeyA = ctypes.windll.shlwapi.SHRegOpenUSKeyA
SHRegOpenUSKeyA.restype = wintypes.DWORD
SHRegOpenUSKeyA.argtypes = [
    wintypes.LPCSTR,  # pszPath : LPCSTR
    wintypes.DWORD,  # samDesired : DWORD
    ctypes.c_ssize_t,  # hRelativeUSKey : INT_PTR optional
    ctypes.POINTER(ctypes.c_ssize_t),  # phNewUSKey : INT_PTR* out
    wintypes.BOOL,  # fIgnoreHKCU : BOOL
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('SHLWAPI.dll')
SHRegOpenUSKeyA = Fiddle::Function.new(
  lib['SHRegOpenUSKeyA'],
  [
    Fiddle::TYPE_VOIDP,  # pszPath : LPCSTR
    -Fiddle::TYPE_INT,  # samDesired : DWORD
    Fiddle::TYPE_INTPTR_T,  # hRelativeUSKey : INT_PTR optional
    Fiddle::TYPE_VOIDP,  # phNewUSKey : INT_PTR* out
    Fiddle::TYPE_INT,  # fIgnoreHKCU : BOOL
  ],
  -Fiddle::TYPE_INT)

#[link(name = "shlwapi")]
extern "system" {
    fn SHRegOpenUSKeyA(
        pszPath: *const u8,  // LPCSTR
        samDesired: u32,  // DWORD
        hRelativeUSKey: isize,  // INT_PTR optional
        phNewUSKey: *mut isize,  // INT_PTR* out
        fIgnoreHKCU: i32  // BOOL
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("SHLWAPI.dll", CharSet = CharSet.Ansi)]
public static extern uint SHRegOpenUSKeyA([MarshalAs(UnmanagedType.LPStr)] string pszPath, uint samDesired, IntPtr hRelativeUSKey, out IntPtr phNewUSKey, bool fIgnoreHKCU);
"@
$api = Add-Type -MemberDefinition $sig -Name 'SHLWAPI_SHRegOpenUSKeyA' -Namespace Win32 -PassThru
# $api::SHRegOpenUSKeyA(pszPath, samDesired, hRelativeUSKey, phNewUSKey, fIgnoreHKCU)

#uselib "SHLWAPI.dll"
#func global SHRegOpenUSKeyA "SHRegOpenUSKeyA" sptr, sptr, sptr, sptr, sptr
; SHRegOpenUSKeyA pszPath, samDesired, hRelativeUSKey, varptr(phNewUSKey), fIgnoreHKCU   ; 戻り値は stat
; pszPath : LPCSTR -> "sptr"
; samDesired : DWORD -> "sptr"
; hRelativeUSKey : INT_PTR optional -> "sptr"
; phNewUSKey : INT_PTR* out -> "sptr"
; fIgnoreHKCU : BOOL -> "sptr"
; ※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 SHRegOpenUSKeyA "SHRegOpenUSKeyA" str, int, sptr, var, int
; res = SHRegOpenUSKeyA(pszPath, samDesired, hRelativeUSKey, phNewUSKey, fIgnoreHKCU)
; pszPath : LPCSTR -> "str"
; samDesired : DWORD -> "int"
; hRelativeUSKey : INT_PTR optional -> "sptr"
; phNewUSKey : INT_PTR* out -> "var"
; fIgnoreHKCU : BOOL -> "int"
; ※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。

; WIN32_ERROR SHRegOpenUSKeyA(LPCSTR pszPath, DWORD samDesired, INT_PTR hRelativeUSKey, INT_PTR* phNewUSKey, BOOL fIgnoreHKCU)
#uselib "SHLWAPI.dll"
#cfunc global SHRegOpenUSKeyA "SHRegOpenUSKeyA" str, int, intptr, var, int
; res = SHRegOpenUSKeyA(pszPath, samDesired, hRelativeUSKey, phNewUSKey, fIgnoreHKCU)
; pszPath : LPCSTR -> "str"
; samDesired : DWORD -> "int"
; hRelativeUSKey : INT_PTR optional -> "intptr"
; phNewUSKey : INT_PTR* out -> "var"
; fIgnoreHKCU : BOOL -> "int"
; ※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 (
	shlwapi = windows.NewLazySystemDLL("SHLWAPI.dll")
	procSHRegOpenUSKeyA = shlwapi.NewProc("SHRegOpenUSKeyA")
)

// pszPath (LPCSTR), samDesired (DWORD), hRelativeUSKey (INT_PTR optional), phNewUSKey (INT_PTR* out), fIgnoreHKCU (BOOL)
r1, _, err := procSHRegOpenUSKeyA.Call(
	uintptr(unsafe.Pointer(windows.BytePtrFromString(pszPath))),
	uintptr(samDesired),
	uintptr(hRelativeUSKey),
	uintptr(phNewUSKey),
	uintptr(fIgnoreHKCU),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // WIN32_ERROR

function SHRegOpenUSKeyA(
  pszPath: PAnsiChar;   // LPCSTR
  samDesired: DWORD;   // DWORD
  hRelativeUSKey: NativeInt;   // INT_PTR optional
  phNewUSKey: Pointer;   // INT_PTR* out
  fIgnoreHKCU: BOOL   // BOOL
): DWORD; stdcall;
  external 'SHLWAPI.dll' name 'SHRegOpenUSKeyA';

result := DllCall("SHLWAPI\SHRegOpenUSKeyA"
    , "AStr", pszPath   ; LPCSTR
    , "UInt", samDesired   ; DWORD
    , "Ptr", hRelativeUSKey   ; INT_PTR optional
    , "Ptr", phNewUSKey   ; INT_PTR* out
    , "Int", fIgnoreHKCU   ; BOOL
    , "UInt")   ; return: WIN32_ERROR

●SHRegOpenUSKeyA(pszPath, samDesired, hRelativeUSKey, phNewUSKey, fIgnoreHKCU) = DLL("SHLWAPI.dll", "dword SHRegOpenUSKeyA(char*, dword, int, void*, bool)")
# 呼び出し: SHRegOpenUSKeyA(pszPath, samDesired, hRelativeUSKey, phNewUSKey, fIgnoreHKCU)
# pszPath : LPCSTR -> "char*"
# samDesired : DWORD -> "dword"
# hRelativeUSKey : INT_PTR optional -> "int"
# phNewUSKey : INT_PTR* out -> "void*"
# fIgnoreHKCU : 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)。