WritePrivateProfileStringA

// KERNEL32.dll  (ANSI / -A)
#include <windows.h>

BOOL WritePrivateProfileStringA(
    LPCSTR lpAppName,   // optional
    LPCSTR lpKeyName,   // optional
    LPCSTR lpString,   // optional
    LPCSTR lpFileName   // optional
);

<DllImport("KERNEL32.dll", CharSet:=CharSet.Ansi, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function WritePrivateProfileStringA(
    <MarshalAs(UnmanagedType.LPStr)> lpAppName As String,   ' LPCSTR optional
    <MarshalAs(UnmanagedType.LPStr)> lpKeyName As String,   ' LPCSTR optional
    <MarshalAs(UnmanagedType.LPStr)> lpString As String,   ' LPCSTR optional
    <MarshalAs(UnmanagedType.LPStr)> lpFileName As String   ' LPCSTR optional
) As Boolean
End Function

' lpAppName : LPCSTR optional
' lpKeyName : LPCSTR optional
' lpString : LPCSTR optional
' lpFileName : LPCSTR optional
Declare PtrSafe Function WritePrivateProfileStringA Lib "kernel32" ( _
    ByVal lpAppName As String, _
    ByVal lpKeyName As String, _
    ByVal lpString As String, _
    ByVal lpFileName As String) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

WritePrivateProfileStringA = ctypes.windll.kernel32.WritePrivateProfileStringA
WritePrivateProfileStringA.restype = wintypes.BOOL
WritePrivateProfileStringA.argtypes = [
    wintypes.LPCSTR,  # lpAppName : LPCSTR optional
    wintypes.LPCSTR,  # lpKeyName : LPCSTR optional
    wintypes.LPCSTR,  # lpString : LPCSTR optional
    wintypes.LPCSTR,  # lpFileName : LPCSTR optional
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
WritePrivateProfileStringA = Fiddle::Function.new(
  lib['WritePrivateProfileStringA'],
  [
    Fiddle::TYPE_VOIDP,  # lpAppName : LPCSTR optional
    Fiddle::TYPE_VOIDP,  # lpKeyName : LPCSTR optional
    Fiddle::TYPE_VOIDP,  # lpString : LPCSTR optional
    Fiddle::TYPE_VOIDP,  # lpFileName : LPCSTR optional
  ],
  Fiddle::TYPE_INT)

#[link(name = "kernel32")]
extern "system" {
    fn WritePrivateProfileStringA(
        lpAppName: *const u8,  // LPCSTR optional
        lpKeyName: *const u8,  // LPCSTR optional
        lpString: *const u8,  // LPCSTR optional
        lpFileName: *const u8  // LPCSTR optional
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("KERNEL32.dll", CharSet = CharSet.Ansi, SetLastError = true)]
public static extern bool WritePrivateProfileStringA([MarshalAs(UnmanagedType.LPStr)] string lpAppName, [MarshalAs(UnmanagedType.LPStr)] string lpKeyName, [MarshalAs(UnmanagedType.LPStr)] string lpString, [MarshalAs(UnmanagedType.LPStr)] string lpFileName);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_WritePrivateProfileStringA' -Namespace Win32 -PassThru
# $api::WritePrivateProfileStringA(lpAppName, lpKeyName, lpString, lpFileName)

#uselib "KERNEL32.dll"
#func global WritePrivateProfileStringA "WritePrivateProfileStringA" sptr, sptr, sptr, sptr
; WritePrivateProfileStringA lpAppName, lpKeyName, lpString, lpFileName   ; 戻り値は stat
; lpAppName : LPCSTR optional -> "sptr"
; lpKeyName : LPCSTR optional -> "sptr"
; lpString : LPCSTR optional -> "sptr"
; lpFileName : LPCSTR 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 "KERNEL32.dll"
#cfunc global WritePrivateProfileStringA "WritePrivateProfileStringA" str, str, str, str
; res = WritePrivateProfileStringA(lpAppName, lpKeyName, lpString, lpFileName)
; lpAppName : LPCSTR optional -> "str"
; lpKeyName : LPCSTR optional -> "str"
; lpString : LPCSTR optional -> "str"
; lpFileName : LPCSTR optional -> "str"

; BOOL WritePrivateProfileStringA(LPCSTR lpAppName, LPCSTR lpKeyName, LPCSTR lpString, LPCSTR lpFileName)
#uselib "KERNEL32.dll"
#cfunc global WritePrivateProfileStringA "WritePrivateProfileStringA" str, str, str, str
; res = WritePrivateProfileStringA(lpAppName, lpKeyName, lpString, lpFileName)
; lpAppName : LPCSTR optional -> "str"
; lpKeyName : LPCSTR optional -> "str"
; lpString : LPCSTR optional -> "str"
; lpFileName : LPCSTR optional -> "str"

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

var (
	kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
	procWritePrivateProfileStringA = kernel32.NewProc("WritePrivateProfileStringA")
)

// lpAppName (LPCSTR optional), lpKeyName (LPCSTR optional), lpString (LPCSTR optional), lpFileName (LPCSTR optional)
r1, _, err := procWritePrivateProfileStringA.Call(
	uintptr(unsafe.Pointer(windows.BytePtrFromString(lpAppName))),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(lpKeyName))),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(lpString))),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(lpFileName))),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function WritePrivateProfileStringA(
  lpAppName: PAnsiChar;   // LPCSTR optional
  lpKeyName: PAnsiChar;   // LPCSTR optional
  lpString: PAnsiChar;   // LPCSTR optional
  lpFileName: PAnsiChar   // LPCSTR optional
): BOOL; stdcall;
  external 'KERNEL32.dll' name 'WritePrivateProfileStringA';

result := DllCall("KERNEL32\WritePrivateProfileStringA"
    , "AStr", lpAppName   ; LPCSTR optional
    , "AStr", lpKeyName   ; LPCSTR optional
    , "AStr", lpString   ; LPCSTR optional
    , "AStr", lpFileName   ; LPCSTR optional
    , "Int")   ; return: BOOL

●WritePrivateProfileStringA(lpAppName, lpKeyName, lpString, lpFileName) = DLL("KERNEL32.dll", "bool WritePrivateProfileStringA(char*, char*, char*, char*)")
# 呼び出し: WritePrivateProfileStringA(lpAppName, lpKeyName, lpString, lpFileName)
# lpAppName : LPCSTR optional -> "char*"
# lpKeyName : LPCSTR optional -> "char*"
# lpString : LPCSTR optional -> "char*"
# lpFileName : LPCSTR 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)。