WriteProfileSectionW

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

BOOL WriteProfileSectionW(
    LPCWSTR lpAppName,
    LPCWSTR lpString
);

<DllImport("KERNEL32.dll", CharSet:=CharSet.Unicode, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function WriteProfileSectionW(
    <MarshalAs(UnmanagedType.LPWStr)> lpAppName As String,   ' LPCWSTR
    <MarshalAs(UnmanagedType.LPWStr)> lpString As String   ' LPCWSTR
) As Boolean
End Function

' lpAppName : LPCWSTR
' lpString : LPCWSTR
Declare PtrSafe Function WriteProfileSectionW Lib "kernel32" ( _
    ByVal lpAppName As LongPtr, _
    ByVal lpString 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

WriteProfileSectionW = ctypes.windll.kernel32.WriteProfileSectionW
WriteProfileSectionW.restype = wintypes.BOOL
WriteProfileSectionW.argtypes = [
    wintypes.LPCWSTR,  # lpAppName : LPCWSTR
    wintypes.LPCWSTR,  # lpString : LPCWSTR
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

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

#[link(name = "kernel32")]
extern "system" {
    fn WriteProfileSectionW(
        lpAppName: *const u16,  // LPCWSTR
        lpString: *const u16  // LPCWSTR
    ) -> 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 WriteProfileSectionW([MarshalAs(UnmanagedType.LPWStr)] string lpAppName, [MarshalAs(UnmanagedType.LPWStr)] string lpString);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_WriteProfileSectionW' -Namespace Win32 -PassThru
# $api::WriteProfileSectionW(lpAppName, lpString)

#uselib "KERNEL32.dll"
#func global WriteProfileSectionW "WriteProfileSectionW" wptr, wptr
; WriteProfileSectionW lpAppName, lpString   ; 戻り値は stat
; lpAppName : LPCWSTR -> "wptr"
; lpString : LPCWSTR -> "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 WriteProfileSectionW "WriteProfileSectionW" wstr, wstr
; res = WriteProfileSectionW(lpAppName, lpString)
; lpAppName : LPCWSTR -> "wstr"
; lpString : LPCWSTR -> "wstr"

; BOOL WriteProfileSectionW(LPCWSTR lpAppName, LPCWSTR lpString)
#uselib "KERNEL32.dll"
#cfunc global WriteProfileSectionW "WriteProfileSectionW" wstr, wstr
; res = WriteProfileSectionW(lpAppName, lpString)
; lpAppName : LPCWSTR -> "wstr"
; lpString : LPCWSTR -> "wstr"

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

var (
	kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
	procWriteProfileSectionW = kernel32.NewProc("WriteProfileSectionW")
)

// lpAppName (LPCWSTR), lpString (LPCWSTR)
r1, _, err := procWriteProfileSectionW.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpAppName))),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpString))),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function WriteProfileSectionW(
  lpAppName: PWideChar;   // LPCWSTR
  lpString: PWideChar   // LPCWSTR
): BOOL; stdcall;
  external 'KERNEL32.dll' name 'WriteProfileSectionW';

result := DllCall("KERNEL32\WriteProfileSectionW"
    , "WStr", lpAppName   ; LPCWSTR
    , "WStr", lpString   ; LPCWSTR
    , "Int")   ; return: BOOL

●WriteProfileSectionW(lpAppName, lpString) = DLL("KERNEL32.dll", "bool WriteProfileSectionW(char*, char*)")
# 呼び出し: WriteProfileSectionW(lpAppName, lpString)
# lpAppName : LPCWSTR -> "char*"
# lpString : LPCWSTR -> "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。