CreateProcessA

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

BOOL CreateProcessA(
    LPCSTR lpApplicationName,   // optional
    LPSTR lpCommandLine,   // optional
    SECURITY_ATTRIBUTES* lpProcessAttributes,   // optional
    SECURITY_ATTRIBUTES* lpThreadAttributes,   // optional
    BOOL bInheritHandles,
    PROCESS_CREATION_FLAGS dwCreationFlags,
    void* lpEnvironment,   // optional
    LPCSTR lpCurrentDirectory,   // optional
    STARTUPINFOA* lpStartupInfo,
    PROCESS_INFORMATION* lpProcessInformation
);

<DllImport("KERNEL32.dll", CharSet:=CharSet.Ansi, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function CreateProcessA(
    <MarshalAs(UnmanagedType.LPStr)> lpApplicationName As String,   ' LPCSTR optional
    <MarshalAs(UnmanagedType.LPStr)> lpCommandLine As System.Text.StringBuilder,   ' LPSTR 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.LPStr)> lpCurrentDirectory As String,   ' LPCSTR optional
    lpStartupInfo As IntPtr,   ' STARTUPINFOA*
    lpProcessInformation As IntPtr   ' PROCESS_INFORMATION* out
) As <MarshalAs(UnmanagedType.Bool)> Boolean
End Function

' lpApplicationName : LPCSTR optional
' lpCommandLine : LPSTR optional, in/out
' lpProcessAttributes : SECURITY_ATTRIBUTES* optional
' lpThreadAttributes : SECURITY_ATTRIBUTES* optional
' bInheritHandles : BOOL
' dwCreationFlags : PROCESS_CREATION_FLAGS
' lpEnvironment : void* optional
' lpCurrentDirectory : LPCSTR optional
' lpStartupInfo : STARTUPINFOA*
' lpProcessInformation : PROCESS_INFORMATION* out
Declare PtrSafe Function CreateProcessA Lib "kernel32" ( _
    ByVal lpApplicationName As String, _
    ByVal lpCommandLine As String, _
    ByVal lpProcessAttributes As LongPtr, _
    ByVal lpThreadAttributes As LongPtr, _
    ByVal bInheritHandles As Long, _
    ByVal dwCreationFlags As Long, _
    ByVal lpEnvironment As LongPtr, _
    ByVal lpCurrentDirectory As String, _
    ByVal lpStartupInfo As LongPtr, _
    ByVal lpProcessInformation As LongPtr) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

CreateProcessA = ctypes.windll.kernel32.CreateProcessA
CreateProcessA.restype = wintypes.BOOL
CreateProcessA.argtypes = [
    wintypes.LPCSTR,  # lpApplicationName : LPCSTR optional
    wintypes.LPSTR,  # lpCommandLine : LPSTR 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.LPCSTR,  # lpCurrentDirectory : LPCSTR optional
    ctypes.c_void_p,  # lpStartupInfo : STARTUPINFOA*
    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')
CreateProcessA = Fiddle::Function.new(
  lib['CreateProcessA'],
  [
    Fiddle::TYPE_VOIDP,  # lpApplicationName : LPCSTR optional
    Fiddle::TYPE_VOIDP,  # lpCommandLine : LPSTR 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 : LPCSTR optional
    Fiddle::TYPE_VOIDP,  # lpStartupInfo : STARTUPINFOA*
    Fiddle::TYPE_VOIDP,  # lpProcessInformation : PROCESS_INFORMATION* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "kernel32")]
extern "system" {
    fn CreateProcessA(
        lpApplicationName: *const u8,  // LPCSTR optional
        lpCommandLine: *mut u8,  // LPSTR 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 u8,  // LPCSTR optional
        lpStartupInfo: *mut STARTUPINFOA,  // STARTUPINFOA*
        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.Ansi, SetLastError = true)]
public static extern bool CreateProcessA([MarshalAs(UnmanagedType.LPStr)] string lpApplicationName, [MarshalAs(UnmanagedType.LPStr)] System.Text.StringBuilder lpCommandLine, IntPtr lpProcessAttributes, IntPtr lpThreadAttributes, bool bInheritHandles, uint dwCreationFlags, IntPtr lpEnvironment, [MarshalAs(UnmanagedType.LPStr)] string lpCurrentDirectory, IntPtr lpStartupInfo, IntPtr lpProcessInformation);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_CreateProcessA' -Namespace Win32 -PassThru
# $api::CreateProcessA(lpApplicationName, lpCommandLine, lpProcessAttributes, lpThreadAttributes, bInheritHandles, dwCreationFlags, lpEnvironment, lpCurrentDirectory, lpStartupInfo, lpProcessInformation)

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

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

var (
	kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
	procCreateProcessA = kernel32.NewProc("CreateProcessA")
)

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

function CreateProcessA(
  lpApplicationName: PAnsiChar;   // LPCSTR optional
  lpCommandLine: PAnsiChar;   // LPSTR 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: PAnsiChar;   // LPCSTR optional
  lpStartupInfo: Pointer;   // STARTUPINFOA*
  lpProcessInformation: Pointer   // PROCESS_INFORMATION* out
): BOOL; stdcall;
  external 'KERNEL32.dll' name 'CreateProcessA';

result := DllCall("KERNEL32\CreateProcessA"
    , "AStr", lpApplicationName   ; LPCSTR optional
    , "Ptr", lpCommandLine   ; LPSTR 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
    , "AStr", lpCurrentDirectory   ; LPCSTR optional
    , "Ptr", lpStartupInfo   ; STARTUPINFOA*
    , "Ptr", lpProcessInformation   ; PROCESS_INFORMATION* out
    , "Int")   ; return: BOOL

●CreateProcessA(lpApplicationName, lpCommandLine, lpProcessAttributes, lpThreadAttributes, bInheritHandles, dwCreationFlags, lpEnvironment, lpCurrentDirectory, lpStartupInfo, lpProcessInformation) = DLL("KERNEL32.dll", "bool CreateProcessA(char*, char*, void*, void*, bool, dword, void*, char*, void*, void*)")
# 呼び出し: CreateProcessA(lpApplicationName, lpCommandLine, lpProcessAttributes, lpThreadAttributes, bInheritHandles, dwCreationFlags, lpEnvironment, lpCurrentDirectory, lpStartupInfo, lpProcessInformation)
# lpApplicationName : LPCSTR optional -> "char*"
# lpCommandLine : LPSTR 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 : LPCSTR optional -> "char*"
# lpStartupInfo : STARTUPINFOA* -> "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)。

const std = @import("std");

extern "kernel32" fn CreateProcessA(
    lpApplicationName: [*c]const u8, // LPCSTR optional
    lpCommandLine: [*c]u8, // LPSTR 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 u8, // LPCSTR optional
    lpStartupInfo: [*c]STARTUPINFOA, // STARTUPINFOA*
    lpProcessInformation: [*c]PROCESS_INFORMATION // PROCESS_INFORMATION* out
) callconv(std.os.windows.WINAPI) i32;

proc CreateProcessA(
    lpApplicationName: cstring,  # LPCSTR optional
    lpCommandLine: ptr char,  # LPSTR 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: cstring,  # LPCSTR optional
    lpStartupInfo: ptr STARTUPINFOA,  # STARTUPINFOA*
    lpProcessInformation: ptr PROCESS_INFORMATION  # PROCESS_INFORMATION* out
): int32 {.importc: "CreateProcessA", stdcall, dynlib: "KERNEL32.dll".}

pragma(lib, "kernel32");
extern(Windows)
int CreateProcessA(
    const(char)* lpApplicationName,   // LPCSTR optional
    char* lpCommandLine,   // LPSTR 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(char)* lpCurrentDirectory,   // LPCSTR optional
    STARTUPINFOA* lpStartupInfo,   // STARTUPINFOA*
    PROCESS_INFORMATION* lpProcessInformation   // PROCESS_INFORMATION* out
);

ccall((:CreateProcessA, "KERNEL32.dll"), stdcall, Int32,
      (Cstring, Ptr{UInt8}, Ptr{SECURITY_ATTRIBUTES}, Ptr{SECURITY_ATTRIBUTES}, Int32, UInt32, Ptr{Cvoid}, Cstring, Ptr{STARTUPINFOA}, Ptr{PROCESS_INFORMATION}),
      lpApplicationName, lpCommandLine, lpProcessAttributes, lpThreadAttributes, bInheritHandles, dwCreationFlags, lpEnvironment, lpCurrentDirectory, lpStartupInfo, lpProcessInformation)
# lpApplicationName : LPCSTR optional -> Cstring
# lpCommandLine : LPSTR optional, in/out -> Ptr{UInt8}
# 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 : LPCSTR optional -> Cstring
# lpStartupInfo : STARTUPINFOA* -> Ptr{STARTUPINFOA}
# lpProcessInformation : PROCESS_INFORMATION* out -> Ptr{PROCESS_INFORMATION}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t CreateProcessA(
    const char* lpApplicationName,
    char* lpCommandLine,
    void* lpProcessAttributes,
    void* lpThreadAttributes,
    int32_t bInheritHandles,
    uint32_t dwCreationFlags,
    void* lpEnvironment,
    const char* lpCurrentDirectory,
    void* lpStartupInfo,
    void* lpProcessInformation);
]]
local kernel32 = ffi.load("kernel32")
-- kernel32.CreateProcessA(lpApplicationName, lpCommandLine, lpProcessAttributes, lpThreadAttributes, bInheritHandles, dwCreationFlags, lpEnvironment, lpCurrentDirectory, lpStartupInfo, lpProcessInformation)
-- lpApplicationName : LPCSTR optional
-- lpCommandLine : LPSTR optional, in/out
-- lpProcessAttributes : SECURITY_ATTRIBUTES* optional
-- lpThreadAttributes : SECURITY_ATTRIBUTES* optional
-- bInheritHandles : BOOL
-- dwCreationFlags : PROCESS_CREATION_FLAGS
-- lpEnvironment : void* optional
-- lpCurrentDirectory : LPCSTR optional
-- lpStartupInfo : STARTUPINFOA*
-- 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。

const koffi = require('koffi');
const lib = koffi.load('KERNEL32.dll');
const CreateProcessA = lib.func('__stdcall', 'CreateProcessA', 'int32_t', ['str', 'char *', 'void *', 'void *', 'int32_t', 'uint32_t', 'void *', 'str', 'void *', 'void *']);
// CreateProcessA(lpApplicationName, lpCommandLine, lpProcessAttributes, lpThreadAttributes, bInheritHandles, dwCreationFlags, lpEnvironment, lpCurrentDirectory, lpStartupInfo, lpProcessInformation)
// lpApplicationName : LPCSTR optional -> 'str'
// lpCommandLine : LPSTR optional, in/out -> 'char *'
// 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 : LPCSTR optional -> 'str'
// lpStartupInfo : STARTUPINFOA* -> '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", {
  CreateProcessA: { parameters: ["buffer", "buffer", "pointer", "pointer", "i32", "u32", "pointer", "buffer", "pointer", "pointer"], result: "i32" },
});
// lib.symbols.CreateProcessA(lpApplicationName, lpCommandLine, lpProcessAttributes, lpThreadAttributes, bInheritHandles, dwCreationFlags, lpEnvironment, lpCurrentDirectory, lpStartupInfo, lpProcessInformation)
// lpApplicationName : LPCSTR optional -> "buffer"
// lpCommandLine : LPSTR 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 : LPCSTR optional -> "buffer"
// lpStartupInfo : STARTUPINFOA* -> "pointer"
// lpProcessInformation : PROCESS_INFORMATION* out -> "pointer"
// 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 CreateProcessA(
    const char* lpApplicationName,
    char* lpCommandLine,
    void* lpProcessAttributes,
    void* lpThreadAttributes,
    int32_t bInheritHandles,
    uint32_t dwCreationFlags,
    void* lpEnvironment,
    const char* lpCurrentDirectory,
    void* lpStartupInfo,
    void* lpProcessInformation);
C, "KERNEL32.dll");
// $ffi->CreateProcessA(lpApplicationName, lpCommandLine, lpProcessAttributes, lpThreadAttributes, bInheritHandles, dwCreationFlags, lpEnvironment, lpCurrentDirectory, lpStartupInfo, lpProcessInformation);
// lpApplicationName : LPCSTR optional
// lpCommandLine : LPSTR optional, in/out
// lpProcessAttributes : SECURITY_ATTRIBUTES* optional
// lpThreadAttributes : SECURITY_ATTRIBUTES* optional
// bInheritHandles : BOOL
// dwCreationFlags : PROCESS_CREATION_FLAGS
// lpEnvironment : void* optional
// lpCurrentDirectory : LPCSTR optional
// lpStartupInfo : STARTUPINFOA*
// 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.ASCII_OPTIONS);
    boolean CreateProcessA(
        String lpApplicationName,   // LPCSTR optional
        byte[] lpCommandLine,   // LPSTR 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
        String lpCurrentDirectory,   // LPCSTR optional
        Pointer lpStartupInfo,   // STARTUPINFOA*
        Pointer lpProcessInformation   // PROCESS_INFORMATION* out
    );
}

@[Link("kernel32")]
lib LibKERNEL32
  fun CreateProcessA = CreateProcessA(
    lpApplicationName : UInt8*,   # LPCSTR optional
    lpCommandLine : UInt8*,   # LPSTR 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 : UInt8*,   # LPCSTR optional
    lpStartupInfo : STARTUPINFOA*,   # STARTUPINFOA*
    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 CreateProcessANative = Int32 Function(Pointer<Utf8>, Pointer<Utf8>, Pointer<Void>, Pointer<Void>, Int32, Uint32, Pointer<Void>, Pointer<Utf8>, Pointer<Void>, Pointer<Void>);
typedef CreateProcessADart = int Function(Pointer<Utf8>, Pointer<Utf8>, Pointer<Void>, Pointer<Void>, int, int, Pointer<Void>, Pointer<Utf8>, Pointer<Void>, Pointer<Void>);
final CreateProcessA = DynamicLibrary.open('KERNEL32.dll')
    .lookupFunction<CreateProcessANative, CreateProcessADart>('CreateProcessA');
// lpApplicationName : LPCSTR optional -> Pointer<Utf8>
// lpCommandLine : LPSTR optional, in/out -> Pointer<Utf8>
// 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 : LPCSTR optional -> Pointer<Utf8>
// lpStartupInfo : STARTUPINFOA* -> Pointer<Void>
// lpProcessInformation : PROCESS_INFORMATION* out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function CreateProcessA(
  lpApplicationName: PAnsiChar;   // LPCSTR optional
  lpCommandLine: PAnsiChar;   // LPSTR 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: PAnsiChar;   // LPCSTR optional
  lpStartupInfo: Pointer;   // STARTUPINFOA*
  lpProcessInformation: Pointer   // PROCESS_INFORMATION* out
): BOOL; stdcall;
  external 'KERNEL32.dll' name 'CreateProcessA';

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

foreign import stdcall safe "CreateProcessA"
  c_CreateProcessA :: CString -> CString -> Ptr () -> Ptr () -> CInt -> Word32 -> Ptr () -> CString -> Ptr () -> Ptr () -> IO CInt
-- lpApplicationName : LPCSTR optional -> CString
-- lpCommandLine : LPSTR optional, in/out -> CString
-- lpProcessAttributes : SECURITY_ATTRIBUTES* optional -> Ptr ()
-- lpThreadAttributes : SECURITY_ATTRIBUTES* optional -> Ptr ()
-- bInheritHandles : BOOL -> CInt
-- dwCreationFlags : PROCESS_CREATION_FLAGS -> Word32
-- lpEnvironment : void* optional -> Ptr ()
-- lpCurrentDirectory : LPCSTR optional -> CString
-- lpStartupInfo : STARTUPINFOA* -> 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 createprocessa =
  foreign "CreateProcessA"
    (string @-> string @-> (ptr void) @-> (ptr void) @-> int32_t @-> uint32_t @-> (ptr void) @-> string @-> (ptr void) @-> (ptr void) @-> returning int32_t)
(* lpApplicationName : LPCSTR optional -> string *)
(* lpCommandLine : LPSTR optional, in/out -> string *)
(* 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 : LPCSTR optional -> string *)
(* lpStartupInfo : STARTUPINFOA* -> (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 ("CreateProcessA" create-process-a :convention :stdcall) :int32
  (lp-application-name :string)   ; LPCSTR optional
  (lp-command-line :pointer)   ; LPSTR 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)   ; LPCSTR optional
  (lp-startup-info :pointer)   ; STARTUPINFOA*
  (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 $CreateProcessA = Win32::API::More->new('KERNEL32',
    'BOOL CreateProcessA(LPCSTR lpApplicationName, LPSTR lpCommandLine, LPVOID lpProcessAttributes, LPVOID lpThreadAttributes, BOOL bInheritHandles, DWORD dwCreationFlags, LPVOID lpEnvironment, LPCSTR lpCurrentDirectory, LPVOID lpStartupInfo, LPVOID lpProcessInformation)');
# my $ret = $CreateProcessA->Call($lpApplicationName, $lpCommandLine, $lpProcessAttributes, $lpThreadAttributes, $bInheritHandles, $dwCreationFlags, $lpEnvironment, $lpCurrentDirectory, $lpStartupInfo, $lpProcessInformation);
# lpApplicationName : LPCSTR optional -> LPCSTR
# lpCommandLine : LPSTR optional, in/out -> LPSTR
# lpProcessAttributes : SECURITY_ATTRIBUTES* optional -> LPVOID
# lpThreadAttributes : SECURITY_ATTRIBUTES* optional -> LPVOID
# bInheritHandles : BOOL -> BOOL
# dwCreationFlags : PROCESS_CREATION_FLAGS -> DWORD
# lpEnvironment : void* optional -> LPVOID
# lpCurrentDirectory : LPCSTR optional -> LPCSTR
# lpStartupInfo : STARTUPINFOA* -> 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。