CreateProcessW

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

BOOL CreateProcessW(
    LPCWSTR lpApplicationName,   // optional
    LPWSTR lpCommandLine,   // optional
    SECURITY_ATTRIBUTES* lpProcessAttributes,   // optional
    SECURITY_ATTRIBUTES* lpThreadAttributes,   // optional
    BOOL bInheritHandles,
    PROCESS_CREATION_FLAGS dwCreationFlags,
    void* lpEnvironment,   // optional
    LPCWSTR lpCurrentDirectory,   // optional
    STARTUPINFOW* lpStartupInfo,
    PROCESS_INFORMATION* lpProcessInformation
);

<DllImport("KERNEL32.dll", CharSet:=CharSet.Unicode, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function CreateProcessW(
    <MarshalAs(UnmanagedType.LPWStr)> lpApplicationName As String,   ' LPCWSTR optional
    <MarshalAs(UnmanagedType.LPWStr)> lpCommandLine As System.Text.StringBuilder,   ' LPWSTR optional, in/out
    lpProcessAttributes As IntPtr,   ' SECURITY_ATTRIBUTES* optional
    lpThreadAttributes As IntPtr,   ' SECURITY_ATTRIBUTES* optional
    bInheritHandles As Boolean,   ' BOOL
    dwCreationFlags As UInteger,   ' PROCESS_CREATION_FLAGS
    lpEnvironment As IntPtr,   ' void* optional
    <MarshalAs(UnmanagedType.LPWStr)> lpCurrentDirectory As String,   ' LPCWSTR optional
    lpStartupInfo As IntPtr,   ' STARTUPINFOW*
    lpProcessInformation As IntPtr   ' PROCESS_INFORMATION* out
) As <MarshalAs(UnmanagedType.Bool)> Boolean
End Function

' lpApplicationName : LPCWSTR optional
' lpCommandLine : LPWSTR optional, in/out
' lpProcessAttributes : SECURITY_ATTRIBUTES* optional
' lpThreadAttributes : SECURITY_ATTRIBUTES* optional
' bInheritHandles : BOOL
' dwCreationFlags : PROCESS_CREATION_FLAGS
' lpEnvironment : void* optional
' lpCurrentDirectory : LPCWSTR optional
' lpStartupInfo : STARTUPINFOW*
' lpProcessInformation : PROCESS_INFORMATION* out
Declare PtrSafe Function CreateProcessW Lib "kernel32" ( _
    ByVal lpApplicationName As LongPtr, _
    ByVal lpCommandLine As LongPtr, _
    ByVal lpProcessAttributes As LongPtr, _
    ByVal lpThreadAttributes As LongPtr, _
    ByVal bInheritHandles As Long, _
    ByVal dwCreationFlags As Long, _
    ByVal lpEnvironment As LongPtr, _
    ByVal lpCurrentDirectory As LongPtr, _
    ByVal lpStartupInfo As LongPtr, _
    ByVal lpProcessInformation 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

CreateProcessW = ctypes.windll.kernel32.CreateProcessW
CreateProcessW.restype = wintypes.BOOL
CreateProcessW.argtypes = [
    wintypes.LPCWSTR,  # lpApplicationName : LPCWSTR optional
    wintypes.LPWSTR,  # lpCommandLine : LPWSTR optional, in/out
    ctypes.c_void_p,  # lpProcessAttributes : SECURITY_ATTRIBUTES* optional
    ctypes.c_void_p,  # lpThreadAttributes : SECURITY_ATTRIBUTES* optional
    wintypes.BOOL,  # bInheritHandles : BOOL
    wintypes.DWORD,  # dwCreationFlags : PROCESS_CREATION_FLAGS
    ctypes.POINTER(None),  # lpEnvironment : void* optional
    wintypes.LPCWSTR,  # lpCurrentDirectory : LPCWSTR optional
    ctypes.c_void_p,  # lpStartupInfo : STARTUPINFOW*
    ctypes.c_void_p,  # lpProcessInformation : PROCESS_INFORMATION* out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
CreateProcessW = Fiddle::Function.new(
  lib['CreateProcessW'],
  [
    Fiddle::TYPE_VOIDP,  # lpApplicationName : LPCWSTR optional
    Fiddle::TYPE_VOIDP,  # lpCommandLine : LPWSTR optional, in/out
    Fiddle::TYPE_VOIDP,  # lpProcessAttributes : SECURITY_ATTRIBUTES* optional
    Fiddle::TYPE_VOIDP,  # lpThreadAttributes : SECURITY_ATTRIBUTES* optional
    Fiddle::TYPE_INT,  # bInheritHandles : BOOL
    -Fiddle::TYPE_INT,  # dwCreationFlags : PROCESS_CREATION_FLAGS
    Fiddle::TYPE_VOIDP,  # lpEnvironment : void* optional
    Fiddle::TYPE_VOIDP,  # lpCurrentDirectory : LPCWSTR optional
    Fiddle::TYPE_VOIDP,  # lpStartupInfo : STARTUPINFOW*
    Fiddle::TYPE_VOIDP,  # lpProcessInformation : PROCESS_INFORMATION* out
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "kernel32")]
extern "system" {
    fn CreateProcessW(
        lpApplicationName: *const u16,  // LPCWSTR optional
        lpCommandLine: *mut u16,  // LPWSTR optional, in/out
        lpProcessAttributes: *mut SECURITY_ATTRIBUTES,  // SECURITY_ATTRIBUTES* optional
        lpThreadAttributes: *mut SECURITY_ATTRIBUTES,  // SECURITY_ATTRIBUTES* optional
        bInheritHandles: i32,  // BOOL
        dwCreationFlags: u32,  // PROCESS_CREATION_FLAGS
        lpEnvironment: *mut (),  // void* optional
        lpCurrentDirectory: *const u16,  // LPCWSTR optional
        lpStartupInfo: *mut STARTUPINFOW,  // STARTUPINFOW*
        lpProcessInformation: *mut PROCESS_INFORMATION  // PROCESS_INFORMATION* out
    ) -> 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 CreateProcessW([MarshalAs(UnmanagedType.LPWStr)] string lpApplicationName, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder lpCommandLine, IntPtr lpProcessAttributes, IntPtr lpThreadAttributes, bool bInheritHandles, uint dwCreationFlags, IntPtr lpEnvironment, [MarshalAs(UnmanagedType.LPWStr)] string lpCurrentDirectory, IntPtr lpStartupInfo, IntPtr lpProcessInformation);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_CreateProcessW' -Namespace Win32 -PassThru
# $api::CreateProcessW(lpApplicationName, lpCommandLine, lpProcessAttributes, lpThreadAttributes, bInheritHandles, dwCreationFlags, lpEnvironment, lpCurrentDirectory, lpStartupInfo, lpProcessInformation)

#uselib "KERNEL32.dll"
#func global CreateProcessW "CreateProcessW" wptr, wptr, wptr, wptr, wptr, wptr, wptr, wptr, wptr, wptr
; CreateProcessW lpApplicationName, varptr(lpCommandLine), varptr(lpProcessAttributes), varptr(lpThreadAttributes), bInheritHandles, dwCreationFlags, lpEnvironment, lpCurrentDirectory, varptr(lpStartupInfo), varptr(lpProcessInformation)   ; 戻り値は stat
; lpApplicationName : LPCWSTR optional -> "wptr"
; lpCommandLine : LPWSTR optional, in/out -> "wptr"
; lpProcessAttributes : SECURITY_ATTRIBUTES* optional -> "wptr"
; lpThreadAttributes : SECURITY_ATTRIBUTES* optional -> "wptr"
; bInheritHandles : BOOL -> "wptr"
; dwCreationFlags : PROCESS_CREATION_FLAGS -> "wptr"
; lpEnvironment : void* optional -> "wptr"
; lpCurrentDirectory : LPCWSTR optional -> "wptr"
; lpStartupInfo : STARTUPINFOW* -> "wptr"
; lpProcessInformation : PROCESS_INFORMATION* out -> "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。

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

var (
	kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
	procCreateProcessW = kernel32.NewProc("CreateProcessW")
)

// lpApplicationName (LPCWSTR optional), lpCommandLine (LPWSTR optional, in/out), lpProcessAttributes (SECURITY_ATTRIBUTES* optional), lpThreadAttributes (SECURITY_ATTRIBUTES* optional), bInheritHandles (BOOL), dwCreationFlags (PROCESS_CREATION_FLAGS), lpEnvironment (void* optional), lpCurrentDirectory (LPCWSTR optional), lpStartupInfo (STARTUPINFOW*), lpProcessInformation (PROCESS_INFORMATION* out)
r1, _, err := procCreateProcessW.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpApplicationName))),
	uintptr(lpCommandLine),
	uintptr(lpProcessAttributes),
	uintptr(lpThreadAttributes),
	uintptr(bInheritHandles),
	uintptr(dwCreationFlags),
	uintptr(lpEnvironment),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpCurrentDirectory))),
	uintptr(lpStartupInfo),
	uintptr(lpProcessInformation),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function CreateProcessW(
  lpApplicationName: PWideChar;   // LPCWSTR optional
  lpCommandLine: PWideChar;   // LPWSTR optional, in/out
  lpProcessAttributes: Pointer;   // SECURITY_ATTRIBUTES* optional
  lpThreadAttributes: Pointer;   // SECURITY_ATTRIBUTES* optional
  bInheritHandles: BOOL;   // BOOL
  dwCreationFlags: DWORD;   // PROCESS_CREATION_FLAGS
  lpEnvironment: Pointer;   // void* optional
  lpCurrentDirectory: PWideChar;   // LPCWSTR optional
  lpStartupInfo: Pointer;   // STARTUPINFOW*
  lpProcessInformation: Pointer   // PROCESS_INFORMATION* out
): BOOL; stdcall;
  external 'KERNEL32.dll' name 'CreateProcessW';

result := DllCall("KERNEL32\CreateProcessW"
    , "WStr", lpApplicationName   ; LPCWSTR optional
    , "Ptr", lpCommandLine   ; LPWSTR optional, in/out
    , "Ptr", lpProcessAttributes   ; SECURITY_ATTRIBUTES* optional
    , "Ptr", lpThreadAttributes   ; SECURITY_ATTRIBUTES* optional
    , "Int", bInheritHandles   ; BOOL
    , "UInt", dwCreationFlags   ; PROCESS_CREATION_FLAGS
    , "Ptr", lpEnvironment   ; void* optional
    , "WStr", lpCurrentDirectory   ; LPCWSTR optional
    , "Ptr", lpStartupInfo   ; STARTUPINFOW*
    , "Ptr", lpProcessInformation   ; PROCESS_INFORMATION* out
    , "Int")   ; return: BOOL

●CreateProcessW(lpApplicationName, lpCommandLine, lpProcessAttributes, lpThreadAttributes, bInheritHandles, dwCreationFlags, lpEnvironment, lpCurrentDirectory, lpStartupInfo, lpProcessInformation) = DLL("KERNEL32.dll", "bool CreateProcessW(char*, char*, void*, void*, bool, dword, void*, char*, void*, void*)")
# 呼び出し: CreateProcessW(lpApplicationName, lpCommandLine, lpProcessAttributes, lpThreadAttributes, bInheritHandles, dwCreationFlags, lpEnvironment, lpCurrentDirectory, lpStartupInfo, lpProcessInformation)
# lpApplicationName : LPCWSTR optional -> "char*"
# lpCommandLine : LPWSTR optional, in/out -> "char*"
# lpProcessAttributes : SECURITY_ATTRIBUTES* optional -> "void*"
# lpThreadAttributes : SECURITY_ATTRIBUTES* optional -> "void*"
# bInheritHandles : BOOL -> "bool"
# dwCreationFlags : PROCESS_CREATION_FLAGS -> "dword"
# lpEnvironment : void* optional -> "void*"
# lpCurrentDirectory : LPCWSTR optional -> "char*"
# lpStartupInfo : STARTUPINFOW* -> "void*"
# lpProcessInformation : PROCESS_INFORMATION* out -> "void*"
# 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。

const std = @import("std");

extern "kernel32" fn CreateProcessW(
    lpApplicationName: [*c]const u16, // LPCWSTR optional
    lpCommandLine: [*c]u16, // LPWSTR optional, in/out
    lpProcessAttributes: [*c]SECURITY_ATTRIBUTES, // SECURITY_ATTRIBUTES* optional
    lpThreadAttributes: [*c]SECURITY_ATTRIBUTES, // SECURITY_ATTRIBUTES* optional
    bInheritHandles: i32, // BOOL
    dwCreationFlags: u32, // PROCESS_CREATION_FLAGS
    lpEnvironment: ?*anyopaque, // void* optional
    lpCurrentDirectory: [*c]const u16, // LPCWSTR optional
    lpStartupInfo: [*c]STARTUPINFOW, // STARTUPINFOW*
    lpProcessInformation: [*c]PROCESS_INFORMATION // PROCESS_INFORMATION* out
) callconv(std.os.windows.WINAPI) i32;
// Unicode(-W): UTF-16LE のヌル終端バッファ([*c]const u16)を渡す。

proc CreateProcessW(
    lpApplicationName: WideCString,  # LPCWSTR optional
    lpCommandLine: ptr uint16,  # LPWSTR optional, in/out
    lpProcessAttributes: ptr SECURITY_ATTRIBUTES,  # SECURITY_ATTRIBUTES* optional
    lpThreadAttributes: ptr SECURITY_ATTRIBUTES,  # SECURITY_ATTRIBUTES* optional
    bInheritHandles: int32,  # BOOL
    dwCreationFlags: uint32,  # PROCESS_CREATION_FLAGS
    lpEnvironment: pointer,  # void* optional
    lpCurrentDirectory: WideCString,  # LPCWSTR optional
    lpStartupInfo: ptr STARTUPINFOW,  # STARTUPINFOW*
    lpProcessInformation: ptr PROCESS_INFORMATION  # PROCESS_INFORMATION* out
): int32 {.importc: "CreateProcessW", stdcall, dynlib: "KERNEL32.dll".}
# Unicode(-W): WideCString は newWideCString("...") で生成。

pragma(lib, "kernel32");
extern(Windows)
int CreateProcessW(
    const(wchar)* lpApplicationName,   // LPCWSTR optional
    wchar* lpCommandLine,   // LPWSTR optional, in/out
    SECURITY_ATTRIBUTES* lpProcessAttributes,   // SECURITY_ATTRIBUTES* optional
    SECURITY_ATTRIBUTES* lpThreadAttributes,   // SECURITY_ATTRIBUTES* optional
    int bInheritHandles,   // BOOL
    uint dwCreationFlags,   // PROCESS_CREATION_FLAGS
    void* lpEnvironment,   // void* optional
    const(wchar)* lpCurrentDirectory,   // LPCWSTR optional
    STARTUPINFOW* lpStartupInfo,   // STARTUPINFOW*
    PROCESS_INFORMATION* lpProcessInformation   // PROCESS_INFORMATION* out
);

ccall((:CreateProcessW, "KERNEL32.dll"), stdcall, Int32,
      (Cwstring, Ptr{UInt16}, Ptr{SECURITY_ATTRIBUTES}, Ptr{SECURITY_ATTRIBUTES}, Int32, UInt32, Ptr{Cvoid}, Cwstring, Ptr{STARTUPINFOW}, Ptr{PROCESS_INFORMATION}),
      lpApplicationName, lpCommandLine, lpProcessAttributes, lpThreadAttributes, bInheritHandles, dwCreationFlags, lpEnvironment, lpCurrentDirectory, lpStartupInfo, lpProcessInformation)
# lpApplicationName : LPCWSTR optional -> Cwstring
# lpCommandLine : LPWSTR optional, in/out -> Ptr{UInt16}
# lpProcessAttributes : SECURITY_ATTRIBUTES* optional -> Ptr{SECURITY_ATTRIBUTES}
# lpThreadAttributes : SECURITY_ATTRIBUTES* optional -> Ptr{SECURITY_ATTRIBUTES}
# bInheritHandles : BOOL -> Int32
# dwCreationFlags : PROCESS_CREATION_FLAGS -> UInt32
# lpEnvironment : void* optional -> Ptr{Cvoid}
# lpCurrentDirectory : LPCWSTR optional -> Cwstring
# lpStartupInfo : STARTUPINFOW* -> Ptr{STARTUPINFOW}
# lpProcessInformation : PROCESS_INFORMATION* out -> Ptr{PROCESS_INFORMATION}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。
# Unicode(-W): Cwstring には transcode(UInt16, "...") 等で UTF-16 を渡す。

local ffi = require("ffi")
ffi.cdef[[
int32_t CreateProcessW(
    const uint16_t* lpApplicationName,
    uint16_t* lpCommandLine,
    void* lpProcessAttributes,
    void* lpThreadAttributes,
    int32_t bInheritHandles,
    uint32_t dwCreationFlags,
    void* lpEnvironment,
    const uint16_t* lpCurrentDirectory,
    void* lpStartupInfo,
    void* lpProcessInformation);
]]
local kernel32 = ffi.load("kernel32")
-- kernel32.CreateProcessW(lpApplicationName, lpCommandLine, lpProcessAttributes, lpThreadAttributes, bInheritHandles, dwCreationFlags, lpEnvironment, lpCurrentDirectory, lpStartupInfo, lpProcessInformation)
-- lpApplicationName : LPCWSTR optional
-- lpCommandLine : LPWSTR optional, in/out
-- lpProcessAttributes : SECURITY_ATTRIBUTES* optional
-- lpThreadAttributes : SECURITY_ATTRIBUTES* optional
-- bInheritHandles : BOOL
-- dwCreationFlags : PROCESS_CREATION_FLAGS
-- lpEnvironment : void* optional
-- lpCurrentDirectory : LPCWSTR optional
-- lpStartupInfo : STARTUPINFOW*
-- lpProcessInformation : PROCESS_INFORMATION* out
-- 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。
-- Unicode(-W): uint16_t* には UTF-16LE のバッファ(ffi.new("uint16_t[?]", ...))を渡す。

const koffi = require('koffi');
const lib = koffi.load('KERNEL32.dll');
const CreateProcessW = lib.func('__stdcall', 'CreateProcessW', 'int32_t', ['str16', 'uint16_t *', 'void *', 'void *', 'int32_t', 'uint32_t', 'void *', 'str16', 'void *', 'void *']);
// CreateProcessW(lpApplicationName, lpCommandLine, lpProcessAttributes, lpThreadAttributes, bInheritHandles, dwCreationFlags, lpEnvironment, lpCurrentDirectory, lpStartupInfo, lpProcessInformation)
// lpApplicationName : LPCWSTR optional -> 'str16'
// lpCommandLine : LPWSTR optional, in/out -> 'uint16_t *'
// lpProcessAttributes : SECURITY_ATTRIBUTES* optional -> 'void *'
// lpThreadAttributes : SECURITY_ATTRIBUTES* optional -> 'void *'
// bInheritHandles : BOOL -> 'int32_t'
// dwCreationFlags : PROCESS_CREATION_FLAGS -> 'uint32_t'
// lpEnvironment : void* optional -> 'void *'
// lpCurrentDirectory : LPCWSTR optional -> 'str16'
// lpStartupInfo : STARTUPINFOW* -> 'void *'
// lpProcessInformation : PROCESS_INFORMATION* out -> 'void *'
// 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", {
  CreateProcessW: { parameters: ["buffer", "buffer", "pointer", "pointer", "i32", "u32", "pointer", "buffer", "pointer", "pointer"], result: "i32" },
});
// lib.symbols.CreateProcessW(lpApplicationName, lpCommandLine, lpProcessAttributes, lpThreadAttributes, bInheritHandles, dwCreationFlags, lpEnvironment, lpCurrentDirectory, lpStartupInfo, lpProcessInformation)
// lpApplicationName : LPCWSTR optional -> "buffer"
// lpCommandLine : LPWSTR optional, in/out -> "buffer"
// lpProcessAttributes : SECURITY_ATTRIBUTES* optional -> "pointer"
// lpThreadAttributes : SECURITY_ATTRIBUTES* optional -> "pointer"
// bInheritHandles : BOOL -> "i32"
// dwCreationFlags : PROCESS_CREATION_FLAGS -> "u32"
// lpEnvironment : void* optional -> "pointer"
// lpCurrentDirectory : LPCWSTR optional -> "buffer"
// lpStartupInfo : STARTUPINFOW* -> "pointer"
// lpProcessInformation : PROCESS_INFORMATION* out -> "pointer"
// 文字列は "buffer"。Unicode(-W) は new TextEncoder() ではなく UTF-16LE のバイト列(末尾に \x00\x00)を Uint8Array で渡す。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。

<?php
$ffi = FFI::cdef(<<<C
int32_t CreateProcessW(
    const uint16_t* lpApplicationName,
    uint16_t* lpCommandLine,
    void* lpProcessAttributes,
    void* lpThreadAttributes,
    int32_t bInheritHandles,
    uint32_t dwCreationFlags,
    void* lpEnvironment,
    const uint16_t* lpCurrentDirectory,
    void* lpStartupInfo,
    void* lpProcessInformation);
C, "KERNEL32.dll");
// $ffi->CreateProcessW(lpApplicationName, lpCommandLine, lpProcessAttributes, lpThreadAttributes, bInheritHandles, dwCreationFlags, lpEnvironment, lpCurrentDirectory, lpStartupInfo, lpProcessInformation);
// lpApplicationName : LPCWSTR optional
// lpCommandLine : LPWSTR optional, in/out
// lpProcessAttributes : SECURITY_ATTRIBUTES* optional
// lpThreadAttributes : SECURITY_ATTRIBUTES* optional
// bInheritHandles : BOOL
// dwCreationFlags : PROCESS_CREATION_FLAGS
// lpEnvironment : void* optional
// lpCurrentDirectory : LPCWSTR optional
// lpStartupInfo : STARTUPINFOW*
// lpProcessInformation : PROCESS_INFORMATION* out
// 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.UNICODE_OPTIONS);
    boolean CreateProcessW(
        WString lpApplicationName,   // LPCWSTR optional
        char[] lpCommandLine,   // LPWSTR optional, in/out
        Pointer lpProcessAttributes,   // SECURITY_ATTRIBUTES* optional
        Pointer lpThreadAttributes,   // SECURITY_ATTRIBUTES* optional
        boolean bInheritHandles,   // BOOL
        int dwCreationFlags,   // PROCESS_CREATION_FLAGS
        Pointer lpEnvironment,   // void* optional
        WString lpCurrentDirectory,   // LPCWSTR optional
        Pointer lpStartupInfo,   // STARTUPINFOW*
        Pointer lpProcessInformation   // PROCESS_INFORMATION* out
    );
}
// Unicode(-W): WString(入力)/char[](出力)で UTF-16 をマーシャリング。

@[Link("kernel32")]
lib LibKERNEL32
  fun CreateProcessW = CreateProcessW(
    lpApplicationName : UInt16*,   # LPCWSTR optional
    lpCommandLine : UInt16*,   # LPWSTR optional, in/out
    lpProcessAttributes : SECURITY_ATTRIBUTES*,   # SECURITY_ATTRIBUTES* optional
    lpThreadAttributes : SECURITY_ATTRIBUTES*,   # SECURITY_ATTRIBUTES* optional
    bInheritHandles : Int32,   # BOOL
    dwCreationFlags : UInt32,   # PROCESS_CREATION_FLAGS
    lpEnvironment : Void*,   # void* optional
    lpCurrentDirectory : UInt16*,   # LPCWSTR optional
    lpStartupInfo : STARTUPINFOW*,   # STARTUPINFOW*
    lpProcessInformation : PROCESS_INFORMATION*   # PROCESS_INFORMATION* out
  ) : 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 CreateProcessWNative = Int32 Function(Pointer<Utf16>, Pointer<Utf16>, Pointer<Void>, Pointer<Void>, Int32, Uint32, Pointer<Void>, Pointer<Utf16>, Pointer<Void>, Pointer<Void>);
typedef CreateProcessWDart = int Function(Pointer<Utf16>, Pointer<Utf16>, Pointer<Void>, Pointer<Void>, int, int, Pointer<Void>, Pointer<Utf16>, Pointer<Void>, Pointer<Void>);
final CreateProcessW = DynamicLibrary.open('KERNEL32.dll')
    .lookupFunction<CreateProcessWNative, CreateProcessWDart>('CreateProcessW');
// lpApplicationName : LPCWSTR optional -> Pointer<Utf16>
// lpCommandLine : LPWSTR optional, in/out -> Pointer<Utf16>
// lpProcessAttributes : SECURITY_ATTRIBUTES* optional -> Pointer<Void>
// lpThreadAttributes : SECURITY_ATTRIBUTES* optional -> Pointer<Void>
// bInheritHandles : BOOL -> Int32
// dwCreationFlags : PROCESS_CREATION_FLAGS -> Uint32
// lpEnvironment : void* optional -> Pointer<Void>
// lpCurrentDirectory : LPCWSTR optional -> Pointer<Utf16>
// lpStartupInfo : STARTUPINFOW* -> Pointer<Void>
// lpProcessInformation : PROCESS_INFORMATION* out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function CreateProcessW(
  lpApplicationName: PWideChar;   // LPCWSTR optional
  lpCommandLine: PWideChar;   // LPWSTR optional, in/out
  lpProcessAttributes: Pointer;   // SECURITY_ATTRIBUTES* optional
  lpThreadAttributes: Pointer;   // SECURITY_ATTRIBUTES* optional
  bInheritHandles: BOOL;   // BOOL
  dwCreationFlags: DWORD;   // PROCESS_CREATION_FLAGS
  lpEnvironment: Pointer;   // void* optional
  lpCurrentDirectory: PWideChar;   // LPCWSTR optional
  lpStartupInfo: Pointer;   // STARTUPINFOW*
  lpProcessInformation: Pointer   // PROCESS_INFORMATION* out
): BOOL; stdcall;
  external 'KERNEL32.dll' name 'CreateProcessW';

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

foreign import stdcall safe "CreateProcessW"
  c_CreateProcessW :: CWString -> CWString -> Ptr () -> Ptr () -> CInt -> Word32 -> Ptr () -> CWString -> Ptr () -> Ptr () -> IO CInt
-- lpApplicationName : LPCWSTR optional -> CWString
-- lpCommandLine : LPWSTR optional, in/out -> CWString
-- lpProcessAttributes : SECURITY_ATTRIBUTES* optional -> Ptr ()
-- lpThreadAttributes : SECURITY_ATTRIBUTES* optional -> Ptr ()
-- bInheritHandles : BOOL -> CInt
-- dwCreationFlags : PROCESS_CREATION_FLAGS -> Word32
-- lpEnvironment : void* optional -> Ptr ()
-- lpCurrentDirectory : LPCWSTR optional -> CWString
-- lpStartupInfo : STARTUPINFOW* -> Ptr ()
-- lpProcessInformation : PROCESS_INFORMATION* out -> Ptr ()
-- 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 createprocessw =
  foreign "CreateProcessW"
    ((ptr uint16_t) @-> (ptr uint16_t) @-> (ptr void) @-> (ptr void) @-> int32_t @-> uint32_t @-> (ptr void) @-> (ptr uint16_t) @-> (ptr void) @-> (ptr void) @-> returning int32_t)
(* lpApplicationName : LPCWSTR optional -> (ptr uint16_t) *)
(* lpCommandLine : LPWSTR optional, in/out -> (ptr uint16_t) *)
(* lpProcessAttributes : SECURITY_ATTRIBUTES* optional -> (ptr void) *)
(* lpThreadAttributes : SECURITY_ATTRIBUTES* optional -> (ptr void) *)
(* bInheritHandles : BOOL -> int32_t *)
(* dwCreationFlags : PROCESS_CREATION_FLAGS -> uint32_t *)
(* lpEnvironment : void* optional -> (ptr void) *)
(* lpCurrentDirectory : LPCWSTR optional -> (ptr uint16_t) *)
(* lpStartupInfo : STARTUPINFOW* -> (ptr void) *)
(* lpProcessInformation : PROCESS_INFORMATION* out -> (ptr void) *)
(* 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 ("CreateProcessW" create-process-w :convention :stdcall) :int32
  (lp-application-name (:string :encoding :utf-16le))   ; LPCWSTR optional
  (lp-command-line :pointer)   ; LPWSTR optional, in/out
  (lp-process-attributes :pointer)   ; SECURITY_ATTRIBUTES* optional
  (lp-thread-attributes :pointer)   ; SECURITY_ATTRIBUTES* optional
  (b-inherit-handles :int32)   ; BOOL
  (dw-creation-flags :uint32)   ; PROCESS_CREATION_FLAGS
  (lp-environment :pointer)   ; void* optional
  (lp-current-directory (:string :encoding :utf-16le))   ; LPCWSTR optional
  (lp-startup-info :pointer)   ; STARTUPINFOW*
  (lp-process-information :pointer))   ; PROCESS_INFORMATION* out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $CreateProcessW = Win32::API::More->new('KERNEL32',
    'BOOL CreateProcessW(LPCWSTR lpApplicationName, LPWSTR lpCommandLine, LPVOID lpProcessAttributes, LPVOID lpThreadAttributes, BOOL bInheritHandles, DWORD dwCreationFlags, LPVOID lpEnvironment, LPCWSTR lpCurrentDirectory, LPVOID lpStartupInfo, LPVOID lpProcessInformation)');
# my $ret = $CreateProcessW->Call($lpApplicationName, $lpCommandLine, $lpProcessAttributes, $lpThreadAttributes, $bInheritHandles, $dwCreationFlags, $lpEnvironment, $lpCurrentDirectory, $lpStartupInfo, $lpProcessInformation);
# lpApplicationName : LPCWSTR optional -> LPCWSTR
# lpCommandLine : LPWSTR optional, in/out -> LPWSTR
# lpProcessAttributes : SECURITY_ATTRIBUTES* optional -> LPVOID
# lpThreadAttributes : SECURITY_ATTRIBUTES* optional -> LPVOID
# bInheritHandles : BOOL -> BOOL
# dwCreationFlags : PROCESS_CREATION_FLAGS -> DWORD
# lpEnvironment : void* optional -> LPVOID
# lpCurrentDirectory : LPCWSTR optional -> LPCWSTR
# lpStartupInfo : STARTUPINFOW* -> LPVOID
# lpProcessInformation : PROCESS_INFORMATION* out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。
# Unicode(-W): LPCWSTR/LPWSTR は Win32::API が UTF-16 変換を行う。