SetFirmwareEnvironmentVariableExA

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

BOOL SetFirmwareEnvironmentVariableExA(
    LPCSTR lpName,
    LPCSTR lpGuid,
    void* pValue,   // optional
    DWORD nSize,
    DWORD dwAttributes
);

<DllImport("KERNEL32.dll", CharSet:=CharSet.Ansi, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function SetFirmwareEnvironmentVariableExA(
    <MarshalAs(UnmanagedType.LPStr)> lpName As String,   ' LPCSTR
    <MarshalAs(UnmanagedType.LPStr)> lpGuid As String,   ' LPCSTR
    pValue As IntPtr,   ' void* optional
    nSize As UInteger,   ' DWORD
    dwAttributes As UInteger   ' DWORD
) As <MarshalAs(UnmanagedType.Bool)> Boolean
End Function

' lpName : LPCSTR
' lpGuid : LPCSTR
' pValue : void* optional
' nSize : DWORD
' dwAttributes : DWORD
Declare PtrSafe Function SetFirmwareEnvironmentVariableExA Lib "kernel32" ( _
    ByVal lpName As String, _
    ByVal lpGuid As String, _
    ByVal pValue As LongPtr, _
    ByVal nSize As Long, _
    ByVal dwAttributes As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

SetFirmwareEnvironmentVariableExA = ctypes.windll.kernel32.SetFirmwareEnvironmentVariableExA
SetFirmwareEnvironmentVariableExA.restype = wintypes.BOOL
SetFirmwareEnvironmentVariableExA.argtypes = [
    wintypes.LPCSTR,  # lpName : LPCSTR
    wintypes.LPCSTR,  # lpGuid : LPCSTR
    ctypes.POINTER(None),  # pValue : void* optional
    wintypes.DWORD,  # nSize : DWORD
    wintypes.DWORD,  # dwAttributes : DWORD
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
SetFirmwareEnvironmentVariableExA = Fiddle::Function.new(
  lib['SetFirmwareEnvironmentVariableExA'],
  [
    Fiddle::TYPE_VOIDP,  # lpName : LPCSTR
    Fiddle::TYPE_VOIDP,  # lpGuid : LPCSTR
    Fiddle::TYPE_VOIDP,  # pValue : void* optional
    -Fiddle::TYPE_INT,  # nSize : DWORD
    -Fiddle::TYPE_INT,  # dwAttributes : DWORD
  ],
  Fiddle::TYPE_INT)

#[link(name = "kernel32")]
extern "system" {
    fn SetFirmwareEnvironmentVariableExA(
        lpName: *const u8,  // LPCSTR
        lpGuid: *const u8,  // LPCSTR
        pValue: *mut (),  // void* optional
        nSize: u32,  // DWORD
        dwAttributes: u32  // DWORD
    ) -> 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 SetFirmwareEnvironmentVariableExA([MarshalAs(UnmanagedType.LPStr)] string lpName, [MarshalAs(UnmanagedType.LPStr)] string lpGuid, IntPtr pValue, uint nSize, uint dwAttributes);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_SetFirmwareEnvironmentVariableExA' -Namespace Win32 -PassThru
# $api::SetFirmwareEnvironmentVariableExA(lpName, lpGuid, pValue, nSize, dwAttributes)

#uselib "KERNEL32.dll"
#func global SetFirmwareEnvironmentVariableExA "SetFirmwareEnvironmentVariableExA" sptr, sptr, sptr, sptr, sptr
; SetFirmwareEnvironmentVariableExA lpName, lpGuid, pValue, nSize, dwAttributes   ; 戻り値は stat
; lpName : LPCSTR -> "sptr"
; lpGuid : LPCSTR -> "sptr"
; pValue : void* optional -> "sptr"
; nSize : DWORD -> "sptr"
; dwAttributes : DWORD -> "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 SetFirmwareEnvironmentVariableExA "SetFirmwareEnvironmentVariableExA" str, str, sptr, int, int
; res = SetFirmwareEnvironmentVariableExA(lpName, lpGuid, pValue, nSize, dwAttributes)
; lpName : LPCSTR -> "str"
; lpGuid : LPCSTR -> "str"
; pValue : void* optional -> "sptr"
; nSize : DWORD -> "int"
; dwAttributes : DWORD -> "int"

; BOOL SetFirmwareEnvironmentVariableExA(LPCSTR lpName, LPCSTR lpGuid, void* pValue, DWORD nSize, DWORD dwAttributes)
#uselib "KERNEL32.dll"
#cfunc global SetFirmwareEnvironmentVariableExA "SetFirmwareEnvironmentVariableExA" str, str, intptr, int, int
; res = SetFirmwareEnvironmentVariableExA(lpName, lpGuid, pValue, nSize, dwAttributes)
; lpName : LPCSTR -> "str"
; lpGuid : LPCSTR -> "str"
; pValue : void* optional -> "intptr"
; nSize : DWORD -> "int"
; dwAttributes : DWORD -> "int"

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

var (
	kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
	procSetFirmwareEnvironmentVariableExA = kernel32.NewProc("SetFirmwareEnvironmentVariableExA")
)

// lpName (LPCSTR), lpGuid (LPCSTR), pValue (void* optional), nSize (DWORD), dwAttributes (DWORD)
r1, _, err := procSetFirmwareEnvironmentVariableExA.Call(
	uintptr(unsafe.Pointer(windows.BytePtrFromString(lpName))),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(lpGuid))),
	uintptr(pValue),
	uintptr(nSize),
	uintptr(dwAttributes),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function SetFirmwareEnvironmentVariableExA(
  lpName: PAnsiChar;   // LPCSTR
  lpGuid: PAnsiChar;   // LPCSTR
  pValue: Pointer;   // void* optional
  nSize: DWORD;   // DWORD
  dwAttributes: DWORD   // DWORD
): BOOL; stdcall;
  external 'KERNEL32.dll' name 'SetFirmwareEnvironmentVariableExA';

result := DllCall("KERNEL32\SetFirmwareEnvironmentVariableExA"
    , "AStr", lpName   ; LPCSTR
    , "AStr", lpGuid   ; LPCSTR
    , "Ptr", pValue   ; void* optional
    , "UInt", nSize   ; DWORD
    , "UInt", dwAttributes   ; DWORD
    , "Int")   ; return: BOOL

●SetFirmwareEnvironmentVariableExA(lpName, lpGuid, pValue, nSize, dwAttributes) = DLL("KERNEL32.dll", "bool SetFirmwareEnvironmentVariableExA(char*, char*, void*, dword, dword)")
# 呼び出し: SetFirmwareEnvironmentVariableExA(lpName, lpGuid, pValue, nSize, dwAttributes)
# lpName : LPCSTR -> "char*"
# lpGuid : LPCSTR -> "char*"
# pValue : void* optional -> "void*"
# nSize : DWORD -> "dword"
# dwAttributes : DWORD -> "dword"
# 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)。

const std = @import("std");

extern "kernel32" fn SetFirmwareEnvironmentVariableExA(
    lpName: [*c]const u8, // LPCSTR
    lpGuid: [*c]const u8, // LPCSTR
    pValue: ?*anyopaque, // void* optional
    nSize: u32, // DWORD
    dwAttributes: u32 // DWORD
) callconv(std.os.windows.WINAPI) i32;

proc SetFirmwareEnvironmentVariableExA(
    lpName: cstring,  # LPCSTR
    lpGuid: cstring,  # LPCSTR
    pValue: pointer,  # void* optional
    nSize: uint32,  # DWORD
    dwAttributes: uint32  # DWORD
): int32 {.importc: "SetFirmwareEnvironmentVariableExA", stdcall, dynlib: "KERNEL32.dll".}

pragma(lib, "kernel32");
extern(Windows)
int SetFirmwareEnvironmentVariableExA(
    const(char)* lpName,   // LPCSTR
    const(char)* lpGuid,   // LPCSTR
    void* pValue,   // void* optional
    uint nSize,   // DWORD
    uint dwAttributes   // DWORD
);

ccall((:SetFirmwareEnvironmentVariableExA, "KERNEL32.dll"), stdcall, Int32,
      (Cstring, Cstring, Ptr{Cvoid}, UInt32, UInt32),
      lpName, lpGuid, pValue, nSize, dwAttributes)
# lpName : LPCSTR -> Cstring
# lpGuid : LPCSTR -> Cstring
# pValue : void* optional -> Ptr{Cvoid}
# nSize : DWORD -> UInt32
# dwAttributes : DWORD -> UInt32
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t SetFirmwareEnvironmentVariableExA(
    const char* lpName,
    const char* lpGuid,
    void* pValue,
    uint32_t nSize,
    uint32_t dwAttributes);
]]
local kernel32 = ffi.load("kernel32")
-- kernel32.SetFirmwareEnvironmentVariableExA(lpName, lpGuid, pValue, nSize, dwAttributes)
-- lpName : LPCSTR
-- lpGuid : LPCSTR
-- pValue : void* optional
-- nSize : DWORD
-- dwAttributes : DWORD
-- 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。

const koffi = require('koffi');
const lib = koffi.load('KERNEL32.dll');
const SetFirmwareEnvironmentVariableExA = lib.func('__stdcall', 'SetFirmwareEnvironmentVariableExA', 'int32_t', ['str', 'str', 'void *', 'uint32_t', 'uint32_t']);
// SetFirmwareEnvironmentVariableExA(lpName, lpGuid, pValue, nSize, dwAttributes)
// lpName : LPCSTR -> 'str'
// lpGuid : LPCSTR -> 'str'
// pValue : void* optional -> 'void *'
// nSize : DWORD -> 'uint32_t'
// dwAttributes : DWORD -> 'uint32_t'
// 出力ポインタは koffi.out(...) で包む。構造体は koffi.struct で定義。

const lib = Deno.dlopen("KERNEL32.dll", {
  SetFirmwareEnvironmentVariableExA: { parameters: ["buffer", "buffer", "pointer", "u32", "u32"], result: "i32" },
});
// lib.symbols.SetFirmwareEnvironmentVariableExA(lpName, lpGuid, pValue, nSize, dwAttributes)
// lpName : LPCSTR -> "buffer"
// lpGuid : LPCSTR -> "buffer"
// pValue : void* optional -> "pointer"
// nSize : DWORD -> "u32"
// dwAttributes : DWORD -> "u32"
// 文字列は "buffer"。ANSI(-A) は new TextEncoder() で UTF-8/ANSI バイト列(末尾に \x00)を渡す。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。

<?php
$ffi = FFI::cdef(<<<C
int32_t SetFirmwareEnvironmentVariableExA(
    const char* lpName,
    const char* lpGuid,
    void* pValue,
    uint32_t nSize,
    uint32_t dwAttributes);
C, "KERNEL32.dll");
// $ffi->SetFirmwareEnvironmentVariableExA(lpName, lpGuid, pValue, nSize, dwAttributes);
// lpName : LPCSTR
// lpGuid : LPCSTR
// pValue : void* optional
// nSize : DWORD
// dwAttributes : DWORD
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。

import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;

public interface Kernel32 extends StdCallLibrary {
    Kernel32 INSTANCE = Native.load("kernel32", Kernel32.class, W32APIOptions.ASCII_OPTIONS);
    boolean SetFirmwareEnvironmentVariableExA(
        String lpName,   // LPCSTR
        String lpGuid,   // LPCSTR
        Pointer pValue,   // void* optional
        int nSize,   // DWORD
        int dwAttributes   // DWORD
    );
}

@[Link("kernel32")]
lib LibKERNEL32
  fun SetFirmwareEnvironmentVariableExA = SetFirmwareEnvironmentVariableExA(
    lpName : UInt8*,   # LPCSTR
    lpGuid : UInt8*,   # LPCSTR
    pValue : Void*,   # void* optional
    nSize : UInt32,   # DWORD
    dwAttributes : UInt32   # DWORD
  ) : Int32
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。

import 'dart:ffi';
import 'package:ffi/ffi.dart';

typedef SetFirmwareEnvironmentVariableExANative = Int32 Function(Pointer<Utf8>, Pointer<Utf8>, Pointer<Void>, Uint32, Uint32);
typedef SetFirmwareEnvironmentVariableExADart = int Function(Pointer<Utf8>, Pointer<Utf8>, Pointer<Void>, int, int);
final SetFirmwareEnvironmentVariableExA = DynamicLibrary.open('KERNEL32.dll')
    .lookupFunction<SetFirmwareEnvironmentVariableExANative, SetFirmwareEnvironmentVariableExADart>('SetFirmwareEnvironmentVariableExA');
// lpName : LPCSTR -> Pointer<Utf8>
// lpGuid : LPCSTR -> Pointer<Utf8>
// pValue : void* optional -> Pointer<Void>
// nSize : DWORD -> Uint32
// dwAttributes : DWORD -> Uint32
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function SetFirmwareEnvironmentVariableExA(
  lpName: PAnsiChar;   // LPCSTR
  lpGuid: PAnsiChar;   // LPCSTR
  pValue: Pointer;   // void* optional
  nSize: DWORD;   // DWORD
  dwAttributes: DWORD   // DWORD
): BOOL; stdcall;
  external 'KERNEL32.dll' name 'SetFirmwareEnvironmentVariableExA';

import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "SetFirmwareEnvironmentVariableExA"
  c_SetFirmwareEnvironmentVariableExA :: CString -> CString -> Ptr () -> Word32 -> Word32 -> IO CInt
-- lpName : LPCSTR -> CString
-- lpGuid : LPCSTR -> CString
-- pValue : void* optional -> Ptr ()
-- nSize : DWORD -> Word32
-- dwAttributes : DWORD -> Word32
-- 要 GHC(Windows)。stdcall は x64 では ccall として扱われる。ブロックする API は safe 呼び出し推奨。

open Ctypes
open Foreign

let setfirmwareenvironmentvariableexa =
  foreign "SetFirmwareEnvironmentVariableExA"
    (string @-> string @-> (ptr void) @-> uint32_t @-> uint32_t @-> returning int32_t)
(* lpName : LPCSTR -> string *)
(* lpGuid : LPCSTR -> string *)
(* pValue : void* optional -> (ptr void) *)
(* nSize : DWORD -> uint32_t *)
(* dwAttributes : DWORD -> uint32_t *)
(* foreign は cdecl 前提。x64 Windows では WINAPI と一致。構造体は ctypes structure を定義のこと。 *)

(cffi:define-foreign-library kernel32 (t "KERNEL32.dll"))
(cffi:use-foreign-library kernel32)

(cffi:defcfun ("SetFirmwareEnvironmentVariableExA" set-firmware-environment-variable-ex-a :convention :stdcall) :int32
  (lp-name :string)   ; LPCSTR
  (lp-guid :string)   ; LPCSTR
  (p-value :pointer)   ; void* optional
  (n-size :uint32)   ; DWORD
  (dw-attributes :uint32))   ; DWORD
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $SetFirmwareEnvironmentVariableExA = Win32::API::More->new('KERNEL32',
    'BOOL SetFirmwareEnvironmentVariableExA(LPCSTR lpName, LPCSTR lpGuid, LPVOID pValue, DWORD nSize, DWORD dwAttributes)');
# my $ret = $SetFirmwareEnvironmentVariableExA->Call($lpName, $lpGuid, $pValue, $nSize, $dwAttributes);
# lpName : LPCSTR -> LPCSTR
# lpGuid : LPCSTR -> LPCSTR
# pValue : void* optional -> LPVOID
# nSize : DWORD -> DWORD
# dwAttributes : DWORD -> DWORD
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。