InstallPerfDllA

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

DWORD InstallPerfDllA(
    LPCSTR szComputerName,   // optional
    LPCSTR lpIniFile,
    UINT_PTR dwFlags
);

<DllImport("loadperf.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function InstallPerfDllA(
    <MarshalAs(UnmanagedType.LPStr)> szComputerName As String,   ' LPCSTR optional
    <MarshalAs(UnmanagedType.LPStr)> lpIniFile As String,   ' LPCSTR
    dwFlags As UIntPtr   ' UINT_PTR
) As UInteger
End Function

' szComputerName : LPCSTR optional
' lpIniFile : LPCSTR
' dwFlags : UINT_PTR
Declare PtrSafe Function InstallPerfDllA Lib "loadperf" ( _
    ByVal szComputerName As String, _
    ByVal lpIniFile As String, _
    ByVal dwFlags 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

InstallPerfDllA = ctypes.windll.loadperf.InstallPerfDllA
InstallPerfDllA.restype = wintypes.DWORD
InstallPerfDllA.argtypes = [
    wintypes.LPCSTR,  # szComputerName : LPCSTR optional
    wintypes.LPCSTR,  # lpIniFile : LPCSTR
    ctypes.c_size_t,  # dwFlags : UINT_PTR
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('loadperf.dll')
InstallPerfDllA = Fiddle::Function.new(
  lib['InstallPerfDllA'],
  [
    Fiddle::TYPE_VOIDP,  # szComputerName : LPCSTR optional
    Fiddle::TYPE_VOIDP,  # lpIniFile : LPCSTR
    Fiddle::TYPE_UINTPTR_T,  # dwFlags : UINT_PTR
  ],
  -Fiddle::TYPE_INT)

#[link(name = "loadperf")]
extern "system" {
    fn InstallPerfDllA(
        szComputerName: *const u8,  // LPCSTR optional
        lpIniFile: *const u8,  // LPCSTR
        dwFlags: usize  // UINT_PTR
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("loadperf.dll", CharSet = CharSet.Ansi)]
public static extern uint InstallPerfDllA([MarshalAs(UnmanagedType.LPStr)] string szComputerName, [MarshalAs(UnmanagedType.LPStr)] string lpIniFile, UIntPtr dwFlags);
"@
$api = Add-Type -MemberDefinition $sig -Name 'loadperf_InstallPerfDllA' -Namespace Win32 -PassThru
# $api::InstallPerfDllA(szComputerName, lpIniFile, dwFlags)

#uselib "loadperf.dll"
#func global InstallPerfDllA "InstallPerfDllA" sptr, sptr, sptr
; InstallPerfDllA szComputerName, lpIniFile, dwFlags   ; 戻り値は stat
; szComputerName : LPCSTR optional -> "sptr"
; lpIniFile : LPCSTR -> "sptr"
; dwFlags : UINT_PTR -> "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 InstallPerfDllA "InstallPerfDllA" str, str, sptr
; res = InstallPerfDllA(szComputerName, lpIniFile, dwFlags)
; szComputerName : LPCSTR optional -> "str"
; lpIniFile : LPCSTR -> "str"
; dwFlags : UINT_PTR -> "sptr"

; DWORD InstallPerfDllA(LPCSTR szComputerName, LPCSTR lpIniFile, UINT_PTR dwFlags)
#uselib "loadperf.dll"
#cfunc global InstallPerfDllA "InstallPerfDllA" str, str, intptr
; res = InstallPerfDllA(szComputerName, lpIniFile, dwFlags)
; szComputerName : LPCSTR optional -> "str"
; lpIniFile : LPCSTR -> "str"
; dwFlags : UINT_PTR -> "intptr"

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

var (
	loadperf = windows.NewLazySystemDLL("loadperf.dll")
	procInstallPerfDllA = loadperf.NewProc("InstallPerfDllA")
)

// szComputerName (LPCSTR optional), lpIniFile (LPCSTR), dwFlags (UINT_PTR)
r1, _, err := procInstallPerfDllA.Call(
	uintptr(unsafe.Pointer(windows.BytePtrFromString(szComputerName))),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(lpIniFile))),
	uintptr(dwFlags),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function InstallPerfDllA(
  szComputerName: PAnsiChar;   // LPCSTR optional
  lpIniFile: PAnsiChar;   // LPCSTR
  dwFlags: NativeUInt   // UINT_PTR
): DWORD; stdcall;
  external 'loadperf.dll' name 'InstallPerfDllA';

result := DllCall("loadperf\InstallPerfDllA"
    , "AStr", szComputerName   ; LPCSTR optional
    , "AStr", lpIniFile   ; LPCSTR
    , "UPtr", dwFlags   ; UINT_PTR
    , "UInt")   ; return: DWORD

●InstallPerfDllA(szComputerName, lpIniFile, dwFlags) = DLL("loadperf.dll", "dword InstallPerfDllA(char*, char*, int)")
# 呼び出し: InstallPerfDllA(szComputerName, lpIniFile, dwFlags)
# szComputerName : LPCSTR optional -> "char*"
# lpIniFile : LPCSTR -> "char*"
# dwFlags : UINT_PTR -> "int"
# 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)。