BackupPerfRegistryToFileW

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

DWORD BackupPerfRegistryToFileW(
    LPCWSTR szFileName,
    LPCWSTR szCommentString   // optional
);

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

' szFileName : LPCWSTR
' szCommentString : LPCWSTR optional
Declare PtrSafe Function BackupPerfRegistryToFileW Lib "loadperf" ( _
    ByVal szFileName As LongPtr, _
    ByVal szCommentString 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

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

require 'fiddle'
require 'fiddle/import'

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

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

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

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

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

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

var (
	loadperf = windows.NewLazySystemDLL("loadperf.dll")
	procBackupPerfRegistryToFileW = loadperf.NewProc("BackupPerfRegistryToFileW")
)

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

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

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

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