RestorePerfRegistryFromFileW

// loadperf.dll
#include <windows.h>

DWORD RestorePerfRegistryFromFileW(
    LPCWSTR szFileName,   // optional
    LPCWSTR szLangId   // optional
);

<DllImport("loadperf.dll", ExactSpelling:=True)>
Public Shared Function RestorePerfRegistryFromFileW(
    <MarshalAs(UnmanagedType.LPWStr)> szFileName As String,   ' LPCWSTR optional
    <MarshalAs(UnmanagedType.LPWStr)> szLangId As String   ' LPCWSTR optional
) As UInteger
End Function

' szFileName : LPCWSTR optional
' szLangId : LPCWSTR optional
Declare PtrSafe Function RestorePerfRegistryFromFileW Lib "loadperf" ( _
    ByVal szFileName As LongPtr, _
    ByVal szLangId As LongPtr) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

RestorePerfRegistryFromFileW = ctypes.windll.loadperf.RestorePerfRegistryFromFileW
RestorePerfRegistryFromFileW.restype = wintypes.DWORD
RestorePerfRegistryFromFileW.argtypes = [
    wintypes.LPCWSTR,  # szFileName : LPCWSTR optional
    wintypes.LPCWSTR,  # szLangId : LPCWSTR optional
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('loadperf.dll')
RestorePerfRegistryFromFileW = Fiddle::Function.new(
  lib['RestorePerfRegistryFromFileW'],
  [
    Fiddle::TYPE_VOIDP,  # szFileName : LPCWSTR optional
    Fiddle::TYPE_VOIDP,  # szLangId : LPCWSTR optional
  ],
  -Fiddle::TYPE_INT)

#[link(name = "loadperf")]
extern "system" {
    fn RestorePerfRegistryFromFileW(
        szFileName: *const u16,  // LPCWSTR optional
        szLangId: *const u16  // LPCWSTR optional
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("loadperf.dll")]
public static extern uint RestorePerfRegistryFromFileW([MarshalAs(UnmanagedType.LPWStr)] string szFileName, [MarshalAs(UnmanagedType.LPWStr)] string szLangId);
"@
$api = Add-Type -MemberDefinition $sig -Name 'loadperf_RestorePerfRegistryFromFileW' -Namespace Win32 -PassThru
# $api::RestorePerfRegistryFromFileW(szFileName, szLangId)

#uselib "loadperf.dll"
#func global RestorePerfRegistryFromFileW "RestorePerfRegistryFromFileW" sptr, sptr
; RestorePerfRegistryFromFileW szFileName, szLangId   ; 戻り値は stat
; szFileName : LPCWSTR optional -> "sptr"
; szLangId : LPCWSTR optional -> "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 "loadperf.dll"
#cfunc global RestorePerfRegistryFromFileW "RestorePerfRegistryFromFileW" wstr, wstr
; res = RestorePerfRegistryFromFileW(szFileName, szLangId)
; szFileName : LPCWSTR optional -> "wstr"
; szLangId : LPCWSTR optional -> "wstr"

; DWORD RestorePerfRegistryFromFileW(LPCWSTR szFileName, LPCWSTR szLangId)
#uselib "loadperf.dll"
#cfunc global RestorePerfRegistryFromFileW "RestorePerfRegistryFromFileW" wstr, wstr
; res = RestorePerfRegistryFromFileW(szFileName, szLangId)
; szFileName : LPCWSTR optional -> "wstr"
; szLangId : LPCWSTR optional -> "wstr"

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

var (
	loadperf = windows.NewLazySystemDLL("loadperf.dll")
	procRestorePerfRegistryFromFileW = loadperf.NewProc("RestorePerfRegistryFromFileW")
)

// szFileName (LPCWSTR optional), szLangId (LPCWSTR optional)
r1, _, err := procRestorePerfRegistryFromFileW.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(szFileName))),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(szLangId))),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function RestorePerfRegistryFromFileW(
  szFileName: PWideChar;   // LPCWSTR optional
  szLangId: PWideChar   // LPCWSTR optional
): DWORD; stdcall;
  external 'loadperf.dll' name 'RestorePerfRegistryFromFileW';

result := DllCall("loadperf\RestorePerfRegistryFromFileW"
    , "WStr", szFileName   ; LPCWSTR optional
    , "WStr", szLangId   ; LPCWSTR optional
    , "UInt")   ; return: DWORD

●RestorePerfRegistryFromFileW(szFileName, szLangId) = DLL("loadperf.dll", "dword RestorePerfRegistryFromFileW(char*, char*)")
# 呼び出し: RestorePerfRegistryFromFileW(szFileName, szLangId)
# szFileName : LPCWSTR optional -> "char*"
# szLangId : 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)。