GetPrivateProfileIntW

// KERNEL32.dll  (Unicode / -W)
#include <windows.h>

INT GetPrivateProfileIntW(
    LPCWSTR lpAppName,
    LPCWSTR lpKeyName,
    INT nDefault,
    LPCWSTR lpFileName   // optional
);

<DllImport("KERNEL32.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function GetPrivateProfileIntW(
    <MarshalAs(UnmanagedType.LPWStr)> lpAppName As String,   ' LPCWSTR
    <MarshalAs(UnmanagedType.LPWStr)> lpKeyName As String,   ' LPCWSTR
    nDefault As Integer,   ' INT
    <MarshalAs(UnmanagedType.LPWStr)> lpFileName As String   ' LPCWSTR optional
) As Integer
End Function

' lpAppName : LPCWSTR
' lpKeyName : LPCWSTR
' nDefault : INT
' lpFileName : LPCWSTR optional
Declare PtrSafe Function GetPrivateProfileIntW Lib "kernel32" ( _
    ByVal lpAppName As LongPtr, _
    ByVal lpKeyName As LongPtr, _
    ByVal nDefault As Long, _
    ByVal lpFileName As LongPtr) 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

GetPrivateProfileIntW = ctypes.windll.kernel32.GetPrivateProfileIntW
GetPrivateProfileIntW.restype = ctypes.c_int
GetPrivateProfileIntW.argtypes = [
    wintypes.LPCWSTR,  # lpAppName : LPCWSTR
    wintypes.LPCWSTR,  # lpKeyName : LPCWSTR
    ctypes.c_int,  # nDefault : INT
    wintypes.LPCWSTR,  # lpFileName : LPCWSTR optional
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
GetPrivateProfileIntW = Fiddle::Function.new(
  lib['GetPrivateProfileIntW'],
  [
    Fiddle::TYPE_VOIDP,  # lpAppName : LPCWSTR
    Fiddle::TYPE_VOIDP,  # lpKeyName : LPCWSTR
    Fiddle::TYPE_INT,  # nDefault : INT
    Fiddle::TYPE_VOIDP,  # lpFileName : LPCWSTR optional
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "kernel32")]
extern "system" {
    fn GetPrivateProfileIntW(
        lpAppName: *const u16,  // LPCWSTR
        lpKeyName: *const u16,  // LPCWSTR
        nDefault: i32,  // INT
        lpFileName: *const u16  // LPCWSTR optional
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("KERNEL32.dll", CharSet = CharSet.Unicode)]
public static extern int GetPrivateProfileIntW([MarshalAs(UnmanagedType.LPWStr)] string lpAppName, [MarshalAs(UnmanagedType.LPWStr)] string lpKeyName, int nDefault, [MarshalAs(UnmanagedType.LPWStr)] string lpFileName);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_GetPrivateProfileIntW' -Namespace Win32 -PassThru
# $api::GetPrivateProfileIntW(lpAppName, lpKeyName, nDefault, lpFileName)

#uselib "KERNEL32.dll"
#func global GetPrivateProfileIntW "GetPrivateProfileIntW" wptr, wptr, wptr, wptr
; GetPrivateProfileIntW lpAppName, lpKeyName, nDefault, lpFileName   ; 戻り値は stat
; lpAppName : LPCWSTR -> "wptr"
; lpKeyName : LPCWSTR -> "wptr"
; nDefault : INT -> "wptr"
; lpFileName : LPCWSTR optional -> "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 "KERNEL32.dll"
#cfunc global GetPrivateProfileIntW "GetPrivateProfileIntW" wstr, wstr, int, wstr
; res = GetPrivateProfileIntW(lpAppName, lpKeyName, nDefault, lpFileName)
; lpAppName : LPCWSTR -> "wstr"
; lpKeyName : LPCWSTR -> "wstr"
; nDefault : INT -> "int"
; lpFileName : LPCWSTR optional -> "wstr"

; INT GetPrivateProfileIntW(LPCWSTR lpAppName, LPCWSTR lpKeyName, INT nDefault, LPCWSTR lpFileName)
#uselib "KERNEL32.dll"
#cfunc global GetPrivateProfileIntW "GetPrivateProfileIntW" wstr, wstr, int, wstr
; res = GetPrivateProfileIntW(lpAppName, lpKeyName, nDefault, lpFileName)
; lpAppName : LPCWSTR -> "wstr"
; lpKeyName : LPCWSTR -> "wstr"
; nDefault : INT -> "int"
; lpFileName : LPCWSTR optional -> "wstr"

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

var (
	kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
	procGetPrivateProfileIntW = kernel32.NewProc("GetPrivateProfileIntW")
)

// lpAppName (LPCWSTR), lpKeyName (LPCWSTR), nDefault (INT), lpFileName (LPCWSTR optional)
r1, _, err := procGetPrivateProfileIntW.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpAppName))),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpKeyName))),
	uintptr(nDefault),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpFileName))),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function GetPrivateProfileIntW(
  lpAppName: PWideChar;   // LPCWSTR
  lpKeyName: PWideChar;   // LPCWSTR
  nDefault: Integer;   // INT
  lpFileName: PWideChar   // LPCWSTR optional
): Integer; stdcall;
  external 'KERNEL32.dll' name 'GetPrivateProfileIntW';

result := DllCall("KERNEL32\GetPrivateProfileIntW"
    , "WStr", lpAppName   ; LPCWSTR
    , "WStr", lpKeyName   ; LPCWSTR
    , "Int", nDefault   ; INT
    , "WStr", lpFileName   ; LPCWSTR optional
    , "Int")   ; return: INT

●GetPrivateProfileIntW(lpAppName, lpKeyName, nDefault, lpFileName) = DLL("KERNEL32.dll", "int GetPrivateProfileIntW(char*, char*, int, char*)")
# 呼び出し: GetPrivateProfileIntW(lpAppName, lpKeyName, nDefault, lpFileName)
# lpAppName : LPCWSTR -> "char*"
# lpKeyName : LPCWSTR -> "char*"
# nDefault : INT -> "int"
# lpFileName : 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)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。