WritePrivateProfileStructW

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

BOOL WritePrivateProfileStructW(
    LPCWSTR lpszSection,
    LPCWSTR lpszKey,
    void* lpStruct,   // optional
    DWORD uSizeStruct,
    LPCWSTR szFile   // optional
);

<DllImport("KERNEL32.dll", CharSet:=CharSet.Unicode, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function WritePrivateProfileStructW(
    <MarshalAs(UnmanagedType.LPWStr)> lpszSection As String,   ' LPCWSTR
    <MarshalAs(UnmanagedType.LPWStr)> lpszKey As String,   ' LPCWSTR
    lpStruct As IntPtr,   ' void* optional
    uSizeStruct As UInteger,   ' DWORD
    <MarshalAs(UnmanagedType.LPWStr)> szFile As String   ' LPCWSTR optional
) As Boolean
End Function

' lpszSection : LPCWSTR
' lpszKey : LPCWSTR
' lpStruct : void* optional
' uSizeStruct : DWORD
' szFile : LPCWSTR optional
Declare PtrSafe Function WritePrivateProfileStructW Lib "kernel32" ( _
    ByVal lpszSection As LongPtr, _
    ByVal lpszKey As LongPtr, _
    ByVal lpStruct As LongPtr, _
    ByVal uSizeStruct As Long, _
    ByVal szFile 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

WritePrivateProfileStructW = ctypes.windll.kernel32.WritePrivateProfileStructW
WritePrivateProfileStructW.restype = wintypes.BOOL
WritePrivateProfileStructW.argtypes = [
    wintypes.LPCWSTR,  # lpszSection : LPCWSTR
    wintypes.LPCWSTR,  # lpszKey : LPCWSTR
    ctypes.POINTER(None),  # lpStruct : void* optional
    wintypes.DWORD,  # uSizeStruct : DWORD
    wintypes.LPCWSTR,  # szFile : LPCWSTR optional
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
WritePrivateProfileStructW = Fiddle::Function.new(
  lib['WritePrivateProfileStructW'],
  [
    Fiddle::TYPE_VOIDP,  # lpszSection : LPCWSTR
    Fiddle::TYPE_VOIDP,  # lpszKey : LPCWSTR
    Fiddle::TYPE_VOIDP,  # lpStruct : void* optional
    -Fiddle::TYPE_INT,  # uSizeStruct : DWORD
    Fiddle::TYPE_VOIDP,  # szFile : LPCWSTR optional
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "kernel32")]
extern "system" {
    fn WritePrivateProfileStructW(
        lpszSection: *const u16,  // LPCWSTR
        lpszKey: *const u16,  // LPCWSTR
        lpStruct: *mut (),  // void* optional
        uSizeStruct: u32,  // DWORD
        szFile: *const u16  // LPCWSTR optional
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("KERNEL32.dll", CharSet = CharSet.Unicode, SetLastError = true)]
public static extern bool WritePrivateProfileStructW([MarshalAs(UnmanagedType.LPWStr)] string lpszSection, [MarshalAs(UnmanagedType.LPWStr)] string lpszKey, IntPtr lpStruct, uint uSizeStruct, [MarshalAs(UnmanagedType.LPWStr)] string szFile);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_WritePrivateProfileStructW' -Namespace Win32 -PassThru
# $api::WritePrivateProfileStructW(lpszSection, lpszKey, lpStruct, uSizeStruct, szFile)

#uselib "KERNEL32.dll"
#func global WritePrivateProfileStructW "WritePrivateProfileStructW" wptr, wptr, wptr, wptr, wptr
; WritePrivateProfileStructW lpszSection, lpszKey, lpStruct, uSizeStruct, szFile   ; 戻り値は stat
; lpszSection : LPCWSTR -> "wptr"
; lpszKey : LPCWSTR -> "wptr"
; lpStruct : void* optional -> "wptr"
; uSizeStruct : DWORD -> "wptr"
; szFile : 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 WritePrivateProfileStructW "WritePrivateProfileStructW" wstr, wstr, sptr, int, wstr
; res = WritePrivateProfileStructW(lpszSection, lpszKey, lpStruct, uSizeStruct, szFile)
; lpszSection : LPCWSTR -> "wstr"
; lpszKey : LPCWSTR -> "wstr"
; lpStruct : void* optional -> "sptr"
; uSizeStruct : DWORD -> "int"
; szFile : LPCWSTR optional -> "wstr"

; BOOL WritePrivateProfileStructW(LPCWSTR lpszSection, LPCWSTR lpszKey, void* lpStruct, DWORD uSizeStruct, LPCWSTR szFile)
#uselib "KERNEL32.dll"
#cfunc global WritePrivateProfileStructW "WritePrivateProfileStructW" wstr, wstr, intptr, int, wstr
; res = WritePrivateProfileStructW(lpszSection, lpszKey, lpStruct, uSizeStruct, szFile)
; lpszSection : LPCWSTR -> "wstr"
; lpszKey : LPCWSTR -> "wstr"
; lpStruct : void* optional -> "intptr"
; uSizeStruct : DWORD -> "int"
; szFile : LPCWSTR optional -> "wstr"

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

var (
	kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
	procWritePrivateProfileStructW = kernel32.NewProc("WritePrivateProfileStructW")
)

// lpszSection (LPCWSTR), lpszKey (LPCWSTR), lpStruct (void* optional), uSizeStruct (DWORD), szFile (LPCWSTR optional)
r1, _, err := procWritePrivateProfileStructW.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpszSection))),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpszKey))),
	uintptr(lpStruct),
	uintptr(uSizeStruct),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(szFile))),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function WritePrivateProfileStructW(
  lpszSection: PWideChar;   // LPCWSTR
  lpszKey: PWideChar;   // LPCWSTR
  lpStruct: Pointer;   // void* optional
  uSizeStruct: DWORD;   // DWORD
  szFile: PWideChar   // LPCWSTR optional
): BOOL; stdcall;
  external 'KERNEL32.dll' name 'WritePrivateProfileStructW';

result := DllCall("KERNEL32\WritePrivateProfileStructW"
    , "WStr", lpszSection   ; LPCWSTR
    , "WStr", lpszKey   ; LPCWSTR
    , "Ptr", lpStruct   ; void* optional
    , "UInt", uSizeStruct   ; DWORD
    , "WStr", szFile   ; LPCWSTR optional
    , "Int")   ; return: BOOL

●WritePrivateProfileStructW(lpszSection, lpszKey, lpStruct, uSizeStruct, szFile) = DLL("KERNEL32.dll", "bool WritePrivateProfileStructW(char*, char*, void*, dword, char*)")
# 呼び出し: WritePrivateProfileStructW(lpszSection, lpszKey, lpStruct, uSizeStruct, szFile)
# lpszSection : LPCWSTR -> "char*"
# lpszKey : LPCWSTR -> "char*"
# lpStruct : void* optional -> "void*"
# uSizeStruct : DWORD -> "dword"
# szFile : 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。