CreateServiceA

// ADVAPI32.dll  (ANSI / -A)
#include <windows.h>

SC_HANDLE CreateServiceA(
    SC_HANDLE hSCManager,
    LPCSTR lpServiceName,
    LPCSTR lpDisplayName,   // optional
    DWORD dwDesiredAccess,
    ENUM_SERVICE_TYPE dwServiceType,
    SERVICE_START_TYPE dwStartType,
    SERVICE_ERROR dwErrorControl,
    LPCSTR lpBinaryPathName,   // optional
    LPCSTR lpLoadOrderGroup,   // optional
    DWORD* lpdwTagId,   // optional
    LPCSTR lpDependencies,   // optional
    LPCSTR lpServiceStartName,   // optional
    LPCSTR lpPassword   // optional
);

<DllImport("ADVAPI32.dll", CharSet:=CharSet.Ansi, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function CreateServiceA(
    hSCManager As IntPtr,   ' SC_HANDLE
    <MarshalAs(UnmanagedType.LPStr)> lpServiceName As String,   ' LPCSTR
    <MarshalAs(UnmanagedType.LPStr)> lpDisplayName As String,   ' LPCSTR optional
    dwDesiredAccess As UInteger,   ' DWORD
    dwServiceType As UInteger,   ' ENUM_SERVICE_TYPE
    dwStartType As UInteger,   ' SERVICE_START_TYPE
    dwErrorControl As UInteger,   ' SERVICE_ERROR
    <MarshalAs(UnmanagedType.LPStr)> lpBinaryPathName As String,   ' LPCSTR optional
    <MarshalAs(UnmanagedType.LPStr)> lpLoadOrderGroup As String,   ' LPCSTR optional
    lpdwTagId As IntPtr,   ' DWORD* optional, out
    <MarshalAs(UnmanagedType.LPStr)> lpDependencies As String,   ' LPCSTR optional
    <MarshalAs(UnmanagedType.LPStr)> lpServiceStartName As String,   ' LPCSTR optional
    <MarshalAs(UnmanagedType.LPStr)> lpPassword As String   ' LPCSTR optional
) As IntPtr
End Function

' hSCManager : SC_HANDLE
' lpServiceName : LPCSTR
' lpDisplayName : LPCSTR optional
' dwDesiredAccess : DWORD
' dwServiceType : ENUM_SERVICE_TYPE
' dwStartType : SERVICE_START_TYPE
' dwErrorControl : SERVICE_ERROR
' lpBinaryPathName : LPCSTR optional
' lpLoadOrderGroup : LPCSTR optional
' lpdwTagId : DWORD* optional, out
' lpDependencies : LPCSTR optional
' lpServiceStartName : LPCSTR optional
' lpPassword : LPCSTR optional
Declare PtrSafe Function CreateServiceA Lib "advapi32" ( _
    ByVal hSCManager As LongPtr, _
    ByVal lpServiceName As String, _
    ByVal lpDisplayName As String, _
    ByVal dwDesiredAccess As Long, _
    ByVal dwServiceType As Long, _
    ByVal dwStartType As Long, _
    ByVal dwErrorControl As Long, _
    ByVal lpBinaryPathName As String, _
    ByVal lpLoadOrderGroup As String, _
    ByVal lpdwTagId As LongPtr, _
    ByVal lpDependencies As String, _
    ByVal lpServiceStartName As String, _
    ByVal lpPassword As String) As LongPtr
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

CreateServiceA = ctypes.windll.advapi32.CreateServiceA
CreateServiceA.restype = ctypes.c_void_p
CreateServiceA.argtypes = [
    wintypes.HANDLE,  # hSCManager : SC_HANDLE
    wintypes.LPCSTR,  # lpServiceName : LPCSTR
    wintypes.LPCSTR,  # lpDisplayName : LPCSTR optional
    wintypes.DWORD,  # dwDesiredAccess : DWORD
    wintypes.DWORD,  # dwServiceType : ENUM_SERVICE_TYPE
    wintypes.DWORD,  # dwStartType : SERVICE_START_TYPE
    wintypes.DWORD,  # dwErrorControl : SERVICE_ERROR
    wintypes.LPCSTR,  # lpBinaryPathName : LPCSTR optional
    wintypes.LPCSTR,  # lpLoadOrderGroup : LPCSTR optional
    ctypes.POINTER(wintypes.DWORD),  # lpdwTagId : DWORD* optional, out
    wintypes.LPCSTR,  # lpDependencies : LPCSTR optional
    wintypes.LPCSTR,  # lpServiceStartName : LPCSTR optional
    wintypes.LPCSTR,  # lpPassword : LPCSTR optional
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ADVAPI32.dll')
CreateServiceA = Fiddle::Function.new(
  lib['CreateServiceA'],
  [
    Fiddle::TYPE_VOIDP,  # hSCManager : SC_HANDLE
    Fiddle::TYPE_VOIDP,  # lpServiceName : LPCSTR
    Fiddle::TYPE_VOIDP,  # lpDisplayName : LPCSTR optional
    -Fiddle::TYPE_INT,  # dwDesiredAccess : DWORD
    -Fiddle::TYPE_INT,  # dwServiceType : ENUM_SERVICE_TYPE
    -Fiddle::TYPE_INT,  # dwStartType : SERVICE_START_TYPE
    -Fiddle::TYPE_INT,  # dwErrorControl : SERVICE_ERROR
    Fiddle::TYPE_VOIDP,  # lpBinaryPathName : LPCSTR optional
    Fiddle::TYPE_VOIDP,  # lpLoadOrderGroup : LPCSTR optional
    Fiddle::TYPE_VOIDP,  # lpdwTagId : DWORD* optional, out
    Fiddle::TYPE_VOIDP,  # lpDependencies : LPCSTR optional
    Fiddle::TYPE_VOIDP,  # lpServiceStartName : LPCSTR optional
    Fiddle::TYPE_VOIDP,  # lpPassword : LPCSTR optional
  ],
  Fiddle::TYPE_VOIDP)

#[link(name = "advapi32")]
extern "system" {
    fn CreateServiceA(
        hSCManager: *mut core::ffi::c_void,  // SC_HANDLE
        lpServiceName: *const u8,  // LPCSTR
        lpDisplayName: *const u8,  // LPCSTR optional
        dwDesiredAccess: u32,  // DWORD
        dwServiceType: u32,  // ENUM_SERVICE_TYPE
        dwStartType: u32,  // SERVICE_START_TYPE
        dwErrorControl: u32,  // SERVICE_ERROR
        lpBinaryPathName: *const u8,  // LPCSTR optional
        lpLoadOrderGroup: *const u8,  // LPCSTR optional
        lpdwTagId: *mut u32,  // DWORD* optional, out
        lpDependencies: *const u8,  // LPCSTR optional
        lpServiceStartName: *const u8,  // LPCSTR optional
        lpPassword: *const u8  // LPCSTR optional
    ) -> *mut core::ffi::c_void;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("ADVAPI32.dll", CharSet = CharSet.Ansi, SetLastError = true)]
public static extern IntPtr CreateServiceA(IntPtr hSCManager, [MarshalAs(UnmanagedType.LPStr)] string lpServiceName, [MarshalAs(UnmanagedType.LPStr)] string lpDisplayName, uint dwDesiredAccess, uint dwServiceType, uint dwStartType, uint dwErrorControl, [MarshalAs(UnmanagedType.LPStr)] string lpBinaryPathName, [MarshalAs(UnmanagedType.LPStr)] string lpLoadOrderGroup, IntPtr lpdwTagId, [MarshalAs(UnmanagedType.LPStr)] string lpDependencies, [MarshalAs(UnmanagedType.LPStr)] string lpServiceStartName, [MarshalAs(UnmanagedType.LPStr)] string lpPassword);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ADVAPI32_CreateServiceA' -Namespace Win32 -PassThru
# $api::CreateServiceA(hSCManager, lpServiceName, lpDisplayName, dwDesiredAccess, dwServiceType, dwStartType, dwErrorControl, lpBinaryPathName, lpLoadOrderGroup, lpdwTagId, lpDependencies, lpServiceStartName, lpPassword)

#uselib "ADVAPI32.dll"
#func global CreateServiceA "CreateServiceA" sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr
; CreateServiceA hSCManager, lpServiceName, lpDisplayName, dwDesiredAccess, dwServiceType, dwStartType, dwErrorControl, lpBinaryPathName, lpLoadOrderGroup, varptr(lpdwTagId), lpDependencies, lpServiceStartName, lpPassword   ; 戻り値は stat
; hSCManager : SC_HANDLE -> "sptr"
; lpServiceName : LPCSTR -> "sptr"
; lpDisplayName : LPCSTR optional -> "sptr"
; dwDesiredAccess : DWORD -> "sptr"
; dwServiceType : ENUM_SERVICE_TYPE -> "sptr"
; dwStartType : SERVICE_START_TYPE -> "sptr"
; dwErrorControl : SERVICE_ERROR -> "sptr"
; lpBinaryPathName : LPCSTR optional -> "sptr"
; lpLoadOrderGroup : LPCSTR optional -> "sptr"
; lpdwTagId : DWORD* optional, out -> "sptr"
; lpDependencies : LPCSTR optional -> "sptr"
; lpServiceStartName : LPCSTR optional -> "sptr"
; lpPassword : 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。

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

var (
	advapi32 = windows.NewLazySystemDLL("ADVAPI32.dll")
	procCreateServiceA = advapi32.NewProc("CreateServiceA")
)

// hSCManager (SC_HANDLE), lpServiceName (LPCSTR), lpDisplayName (LPCSTR optional), dwDesiredAccess (DWORD), dwServiceType (ENUM_SERVICE_TYPE), dwStartType (SERVICE_START_TYPE), dwErrorControl (SERVICE_ERROR), lpBinaryPathName (LPCSTR optional), lpLoadOrderGroup (LPCSTR optional), lpdwTagId (DWORD* optional, out), lpDependencies (LPCSTR optional), lpServiceStartName (LPCSTR optional), lpPassword (LPCSTR optional)
r1, _, err := procCreateServiceA.Call(
	uintptr(hSCManager),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(lpServiceName))),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(lpDisplayName))),
	uintptr(dwDesiredAccess),
	uintptr(dwServiceType),
	uintptr(dwStartType),
	uintptr(dwErrorControl),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(lpBinaryPathName))),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(lpLoadOrderGroup))),
	uintptr(lpdwTagId),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(lpDependencies))),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(lpServiceStartName))),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(lpPassword))),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // SC_HANDLE

function CreateServiceA(
  hSCManager: THandle;   // SC_HANDLE
  lpServiceName: PAnsiChar;   // LPCSTR
  lpDisplayName: PAnsiChar;   // LPCSTR optional
  dwDesiredAccess: DWORD;   // DWORD
  dwServiceType: DWORD;   // ENUM_SERVICE_TYPE
  dwStartType: DWORD;   // SERVICE_START_TYPE
  dwErrorControl: DWORD;   // SERVICE_ERROR
  lpBinaryPathName: PAnsiChar;   // LPCSTR optional
  lpLoadOrderGroup: PAnsiChar;   // LPCSTR optional
  lpdwTagId: Pointer;   // DWORD* optional, out
  lpDependencies: PAnsiChar;   // LPCSTR optional
  lpServiceStartName: PAnsiChar;   // LPCSTR optional
  lpPassword: PAnsiChar   // LPCSTR optional
): THandle; stdcall;
  external 'ADVAPI32.dll' name 'CreateServiceA';

result := DllCall("ADVAPI32\CreateServiceA"
    , "Ptr", hSCManager   ; SC_HANDLE
    , "AStr", lpServiceName   ; LPCSTR
    , "AStr", lpDisplayName   ; LPCSTR optional
    , "UInt", dwDesiredAccess   ; DWORD
    , "UInt", dwServiceType   ; ENUM_SERVICE_TYPE
    , "UInt", dwStartType   ; SERVICE_START_TYPE
    , "UInt", dwErrorControl   ; SERVICE_ERROR
    , "AStr", lpBinaryPathName   ; LPCSTR optional
    , "AStr", lpLoadOrderGroup   ; LPCSTR optional
    , "Ptr", lpdwTagId   ; DWORD* optional, out
    , "AStr", lpDependencies   ; LPCSTR optional
    , "AStr", lpServiceStartName   ; LPCSTR optional
    , "AStr", lpPassword   ; LPCSTR optional
    , "Ptr")   ; return: SC_HANDLE

●CreateServiceA(hSCManager, lpServiceName, lpDisplayName, dwDesiredAccess, dwServiceType, dwStartType, dwErrorControl, lpBinaryPathName, lpLoadOrderGroup, lpdwTagId, lpDependencies, lpServiceStartName, lpPassword) = DLL("ADVAPI32.dll", "void* CreateServiceA(void*, char*, char*, dword, dword, dword, dword, char*, char*, void*, char*, char*, char*)")
# 呼び出し: CreateServiceA(hSCManager, lpServiceName, lpDisplayName, dwDesiredAccess, dwServiceType, dwStartType, dwErrorControl, lpBinaryPathName, lpLoadOrderGroup, lpdwTagId, lpDependencies, lpServiceStartName, lpPassword)
# hSCManager : SC_HANDLE -> "void*"
# lpServiceName : LPCSTR -> "char*"
# lpDisplayName : LPCSTR optional -> "char*"
# dwDesiredAccess : DWORD -> "dword"
# dwServiceType : ENUM_SERVICE_TYPE -> "dword"
# dwStartType : SERVICE_START_TYPE -> "dword"
# dwErrorControl : SERVICE_ERROR -> "dword"
# lpBinaryPathName : LPCSTR optional -> "char*"
# lpLoadOrderGroup : LPCSTR optional -> "char*"
# lpdwTagId : DWORD* optional, out -> "void*"
# lpDependencies : LPCSTR optional -> "char*"
# lpServiceStartName : LPCSTR optional -> "char*"
# lpPassword : 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)。

const std = @import("std");

extern "advapi32" fn CreateServiceA(
    hSCManager: ?*anyopaque, // SC_HANDLE
    lpServiceName: [*c]const u8, // LPCSTR
    lpDisplayName: [*c]const u8, // LPCSTR optional
    dwDesiredAccess: u32, // DWORD
    dwServiceType: u32, // ENUM_SERVICE_TYPE
    dwStartType: u32, // SERVICE_START_TYPE
    dwErrorControl: u32, // SERVICE_ERROR
    lpBinaryPathName: [*c]const u8, // LPCSTR optional
    lpLoadOrderGroup: [*c]const u8, // LPCSTR optional
    lpdwTagId: [*c]u32, // DWORD* optional, out
    lpDependencies: [*c]const u8, // LPCSTR optional
    lpServiceStartName: [*c]const u8, // LPCSTR optional
    lpPassword: [*c]const u8 // LPCSTR optional
) callconv(std.os.windows.WINAPI) ?*anyopaque;

proc CreateServiceA(
    hSCManager: pointer,  # SC_HANDLE
    lpServiceName: cstring,  # LPCSTR
    lpDisplayName: cstring,  # LPCSTR optional
    dwDesiredAccess: uint32,  # DWORD
    dwServiceType: uint32,  # ENUM_SERVICE_TYPE
    dwStartType: uint32,  # SERVICE_START_TYPE
    dwErrorControl: uint32,  # SERVICE_ERROR
    lpBinaryPathName: cstring,  # LPCSTR optional
    lpLoadOrderGroup: cstring,  # LPCSTR optional
    lpdwTagId: ptr uint32,  # DWORD* optional, out
    lpDependencies: cstring,  # LPCSTR optional
    lpServiceStartName: cstring,  # LPCSTR optional
    lpPassword: cstring  # LPCSTR optional
): pointer {.importc: "CreateServiceA", stdcall, dynlib: "ADVAPI32.dll".}

pragma(lib, "advapi32");
extern(Windows)
void* CreateServiceA(
    void* hSCManager,   // SC_HANDLE
    const(char)* lpServiceName,   // LPCSTR
    const(char)* lpDisplayName,   // LPCSTR optional
    uint dwDesiredAccess,   // DWORD
    uint dwServiceType,   // ENUM_SERVICE_TYPE
    uint dwStartType,   // SERVICE_START_TYPE
    uint dwErrorControl,   // SERVICE_ERROR
    const(char)* lpBinaryPathName,   // LPCSTR optional
    const(char)* lpLoadOrderGroup,   // LPCSTR optional
    uint* lpdwTagId,   // DWORD* optional, out
    const(char)* lpDependencies,   // LPCSTR optional
    const(char)* lpServiceStartName,   // LPCSTR optional
    const(char)* lpPassword   // LPCSTR optional
);

ccall((:CreateServiceA, "ADVAPI32.dll"), stdcall, Ptr{Cvoid},
      (Ptr{Cvoid}, Cstring, Cstring, UInt32, UInt32, UInt32, UInt32, Cstring, Cstring, Ptr{UInt32}, Cstring, Cstring, Cstring),
      hSCManager, lpServiceName, lpDisplayName, dwDesiredAccess, dwServiceType, dwStartType, dwErrorControl, lpBinaryPathName, lpLoadOrderGroup, lpdwTagId, lpDependencies, lpServiceStartName, lpPassword)
# hSCManager : SC_HANDLE -> Ptr{Cvoid}
# lpServiceName : LPCSTR -> Cstring
# lpDisplayName : LPCSTR optional -> Cstring
# dwDesiredAccess : DWORD -> UInt32
# dwServiceType : ENUM_SERVICE_TYPE -> UInt32
# dwStartType : SERVICE_START_TYPE -> UInt32
# dwErrorControl : SERVICE_ERROR -> UInt32
# lpBinaryPathName : LPCSTR optional -> Cstring
# lpLoadOrderGroup : LPCSTR optional -> Cstring
# lpdwTagId : DWORD* optional, out -> Ptr{UInt32}
# lpDependencies : LPCSTR optional -> Cstring
# lpServiceStartName : LPCSTR optional -> Cstring
# lpPassword : LPCSTR optional -> Cstring
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
void* CreateServiceA(
    void* hSCManager,
    const char* lpServiceName,
    const char* lpDisplayName,
    uint32_t dwDesiredAccess,
    uint32_t dwServiceType,
    uint32_t dwStartType,
    uint32_t dwErrorControl,
    const char* lpBinaryPathName,
    const char* lpLoadOrderGroup,
    uint32_t* lpdwTagId,
    const char* lpDependencies,
    const char* lpServiceStartName,
    const char* lpPassword);
]]
local advapi32 = ffi.load("advapi32")
-- advapi32.CreateServiceA(hSCManager, lpServiceName, lpDisplayName, dwDesiredAccess, dwServiceType, dwStartType, dwErrorControl, lpBinaryPathName, lpLoadOrderGroup, lpdwTagId, lpDependencies, lpServiceStartName, lpPassword)
-- hSCManager : SC_HANDLE
-- lpServiceName : LPCSTR
-- lpDisplayName : LPCSTR optional
-- dwDesiredAccess : DWORD
-- dwServiceType : ENUM_SERVICE_TYPE
-- dwStartType : SERVICE_START_TYPE
-- dwErrorControl : SERVICE_ERROR
-- lpBinaryPathName : LPCSTR optional
-- lpLoadOrderGroup : LPCSTR optional
-- lpdwTagId : DWORD* optional, out
-- lpDependencies : LPCSTR optional
-- lpServiceStartName : LPCSTR optional
-- lpPassword : LPCSTR optional
-- 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('ADVAPI32.dll');
const CreateServiceA = lib.func('__stdcall', 'CreateServiceA', 'void *', ['void *', 'str', 'str', 'uint32_t', 'uint32_t', 'uint32_t', 'uint32_t', 'str', 'str', 'uint32_t *', 'str', 'str', 'str']);
// CreateServiceA(hSCManager, lpServiceName, lpDisplayName, dwDesiredAccess, dwServiceType, dwStartType, dwErrorControl, lpBinaryPathName, lpLoadOrderGroup, lpdwTagId, lpDependencies, lpServiceStartName, lpPassword)
// hSCManager : SC_HANDLE -> 'void *'
// lpServiceName : LPCSTR -> 'str'
// lpDisplayName : LPCSTR optional -> 'str'
// dwDesiredAccess : DWORD -> 'uint32_t'
// dwServiceType : ENUM_SERVICE_TYPE -> 'uint32_t'
// dwStartType : SERVICE_START_TYPE -> 'uint32_t'
// dwErrorControl : SERVICE_ERROR -> 'uint32_t'
// lpBinaryPathName : LPCSTR optional -> 'str'
// lpLoadOrderGroup : LPCSTR optional -> 'str'
// lpdwTagId : DWORD* optional, out -> 'uint32_t *'
// lpDependencies : LPCSTR optional -> 'str'
// lpServiceStartName : LPCSTR optional -> 'str'
// lpPassword : LPCSTR optional -> 'str'
// 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("ADVAPI32.dll", {
  CreateServiceA: { parameters: ["pointer", "buffer", "buffer", "u32", "u32", "u32", "u32", "buffer", "buffer", "pointer", "buffer", "buffer", "buffer"], result: "pointer" },
});
// lib.symbols.CreateServiceA(hSCManager, lpServiceName, lpDisplayName, dwDesiredAccess, dwServiceType, dwStartType, dwErrorControl, lpBinaryPathName, lpLoadOrderGroup, lpdwTagId, lpDependencies, lpServiceStartName, lpPassword)
// hSCManager : SC_HANDLE -> "pointer"
// lpServiceName : LPCSTR -> "buffer"
// lpDisplayName : LPCSTR optional -> "buffer"
// dwDesiredAccess : DWORD -> "u32"
// dwServiceType : ENUM_SERVICE_TYPE -> "u32"
// dwStartType : SERVICE_START_TYPE -> "u32"
// dwErrorControl : SERVICE_ERROR -> "u32"
// lpBinaryPathName : LPCSTR optional -> "buffer"
// lpLoadOrderGroup : LPCSTR optional -> "buffer"
// lpdwTagId : DWORD* optional, out -> "pointer"
// lpDependencies : LPCSTR optional -> "buffer"
// lpServiceStartName : LPCSTR optional -> "buffer"
// lpPassword : LPCSTR optional -> "buffer"
// 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
void* CreateServiceA(
    void* hSCManager,
    const char* lpServiceName,
    const char* lpDisplayName,
    uint32_t dwDesiredAccess,
    uint32_t dwServiceType,
    uint32_t dwStartType,
    uint32_t dwErrorControl,
    const char* lpBinaryPathName,
    const char* lpLoadOrderGroup,
    uint32_t* lpdwTagId,
    const char* lpDependencies,
    const char* lpServiceStartName,
    const char* lpPassword);
C, "ADVAPI32.dll");
// $ffi->CreateServiceA(hSCManager, lpServiceName, lpDisplayName, dwDesiredAccess, dwServiceType, dwStartType, dwErrorControl, lpBinaryPathName, lpLoadOrderGroup, lpdwTagId, lpDependencies, lpServiceStartName, lpPassword);
// hSCManager : SC_HANDLE
// lpServiceName : LPCSTR
// lpDisplayName : LPCSTR optional
// dwDesiredAccess : DWORD
// dwServiceType : ENUM_SERVICE_TYPE
// dwStartType : SERVICE_START_TYPE
// dwErrorControl : SERVICE_ERROR
// lpBinaryPathName : LPCSTR optional
// lpLoadOrderGroup : LPCSTR optional
// lpdwTagId : DWORD* optional, out
// lpDependencies : LPCSTR optional
// lpServiceStartName : LPCSTR optional
// lpPassword : LPCSTR optional
// 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 Advapi32 extends StdCallLibrary {
    Advapi32 INSTANCE = Native.load("advapi32", Advapi32.class, W32APIOptions.ASCII_OPTIONS);
    Pointer CreateServiceA(
        Pointer hSCManager,   // SC_HANDLE
        String lpServiceName,   // LPCSTR
        String lpDisplayName,   // LPCSTR optional
        int dwDesiredAccess,   // DWORD
        int dwServiceType,   // ENUM_SERVICE_TYPE
        int dwStartType,   // SERVICE_START_TYPE
        int dwErrorControl,   // SERVICE_ERROR
        String lpBinaryPathName,   // LPCSTR optional
        String lpLoadOrderGroup,   // LPCSTR optional
        IntByReference lpdwTagId,   // DWORD* optional, out
        String lpDependencies,   // LPCSTR optional
        String lpServiceStartName,   // LPCSTR optional
        String lpPassword   // LPCSTR optional
    );
}

@[Link("advapi32")]
lib LibADVAPI32
  fun CreateServiceA = CreateServiceA(
    hSCManager : Void*,   # SC_HANDLE
    lpServiceName : UInt8*,   # LPCSTR
    lpDisplayName : UInt8*,   # LPCSTR optional
    dwDesiredAccess : UInt32,   # DWORD
    dwServiceType : UInt32,   # ENUM_SERVICE_TYPE
    dwStartType : UInt32,   # SERVICE_START_TYPE
    dwErrorControl : UInt32,   # SERVICE_ERROR
    lpBinaryPathName : UInt8*,   # LPCSTR optional
    lpLoadOrderGroup : UInt8*,   # LPCSTR optional
    lpdwTagId : UInt32*,   # DWORD* optional, out
    lpDependencies : UInt8*,   # LPCSTR optional
    lpServiceStartName : UInt8*,   # LPCSTR optional
    lpPassword : UInt8*   # LPCSTR optional
  ) : Void*
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 CreateServiceANative = Pointer<Void> Function(Pointer<Void>, Pointer<Utf8>, Pointer<Utf8>, Uint32, Uint32, Uint32, Uint32, Pointer<Utf8>, Pointer<Utf8>, Pointer<Uint32>, Pointer<Utf8>, Pointer<Utf8>, Pointer<Utf8>);
typedef CreateServiceADart = Pointer<Void> Function(Pointer<Void>, Pointer<Utf8>, Pointer<Utf8>, int, int, int, int, Pointer<Utf8>, Pointer<Utf8>, Pointer<Uint32>, Pointer<Utf8>, Pointer<Utf8>, Pointer<Utf8>);
final CreateServiceA = DynamicLibrary.open('ADVAPI32.dll')
    .lookupFunction<CreateServiceANative, CreateServiceADart>('CreateServiceA');
// hSCManager : SC_HANDLE -> Pointer<Void>
// lpServiceName : LPCSTR -> Pointer<Utf8>
// lpDisplayName : LPCSTR optional -> Pointer<Utf8>
// dwDesiredAccess : DWORD -> Uint32
// dwServiceType : ENUM_SERVICE_TYPE -> Uint32
// dwStartType : SERVICE_START_TYPE -> Uint32
// dwErrorControl : SERVICE_ERROR -> Uint32
// lpBinaryPathName : LPCSTR optional -> Pointer<Utf8>
// lpLoadOrderGroup : LPCSTR optional -> Pointer<Utf8>
// lpdwTagId : DWORD* optional, out -> Pointer<Uint32>
// lpDependencies : LPCSTR optional -> Pointer<Utf8>
// lpServiceStartName : LPCSTR optional -> Pointer<Utf8>
// lpPassword : LPCSTR optional -> Pointer<Utf8>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function CreateServiceA(
  hSCManager: THandle;   // SC_HANDLE
  lpServiceName: PAnsiChar;   // LPCSTR
  lpDisplayName: PAnsiChar;   // LPCSTR optional
  dwDesiredAccess: DWORD;   // DWORD
  dwServiceType: DWORD;   // ENUM_SERVICE_TYPE
  dwStartType: DWORD;   // SERVICE_START_TYPE
  dwErrorControl: DWORD;   // SERVICE_ERROR
  lpBinaryPathName: PAnsiChar;   // LPCSTR optional
  lpLoadOrderGroup: PAnsiChar;   // LPCSTR optional
  lpdwTagId: Pointer;   // DWORD* optional, out
  lpDependencies: PAnsiChar;   // LPCSTR optional
  lpServiceStartName: PAnsiChar;   // LPCSTR optional
  lpPassword: PAnsiChar   // LPCSTR optional
): THandle; stdcall;
  external 'ADVAPI32.dll' name 'CreateServiceA';

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

foreign import stdcall safe "CreateServiceA"
  c_CreateServiceA :: Ptr () -> CString -> CString -> Word32 -> Word32 -> Word32 -> Word32 -> CString -> CString -> Ptr Word32 -> CString -> CString -> CString -> IO (Ptr ())
-- hSCManager : SC_HANDLE -> Ptr ()
-- lpServiceName : LPCSTR -> CString
-- lpDisplayName : LPCSTR optional -> CString
-- dwDesiredAccess : DWORD -> Word32
-- dwServiceType : ENUM_SERVICE_TYPE -> Word32
-- dwStartType : SERVICE_START_TYPE -> Word32
-- dwErrorControl : SERVICE_ERROR -> Word32
-- lpBinaryPathName : LPCSTR optional -> CString
-- lpLoadOrderGroup : LPCSTR optional -> CString
-- lpdwTagId : DWORD* optional, out -> Ptr Word32
-- lpDependencies : LPCSTR optional -> CString
-- lpServiceStartName : LPCSTR optional -> CString
-- lpPassword : LPCSTR optional -> CString
-- 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 createservicea =
  foreign "CreateServiceA"
    ((ptr void) @-> string @-> string @-> uint32_t @-> uint32_t @-> uint32_t @-> uint32_t @-> string @-> string @-> (ptr uint32_t) @-> string @-> string @-> string @-> returning (ptr void))
(* hSCManager : SC_HANDLE -> (ptr void) *)
(* lpServiceName : LPCSTR -> string *)
(* lpDisplayName : LPCSTR optional -> string *)
(* dwDesiredAccess : DWORD -> uint32_t *)
(* dwServiceType : ENUM_SERVICE_TYPE -> uint32_t *)
(* dwStartType : SERVICE_START_TYPE -> uint32_t *)
(* dwErrorControl : SERVICE_ERROR -> uint32_t *)
(* lpBinaryPathName : LPCSTR optional -> string *)
(* lpLoadOrderGroup : LPCSTR optional -> string *)
(* lpdwTagId : DWORD* optional, out -> (ptr uint32_t) *)
(* lpDependencies : LPCSTR optional -> string *)
(* lpServiceStartName : LPCSTR optional -> string *)
(* lpPassword : LPCSTR optional -> string *)
(* 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 advapi32 (t "ADVAPI32.dll"))
(cffi:use-foreign-library advapi32)

(cffi:defcfun ("CreateServiceA" create-service-a :convention :stdcall) :pointer
  (h-scmanager :pointer)   ; SC_HANDLE
  (lp-service-name :string)   ; LPCSTR
  (lp-display-name :string)   ; LPCSTR optional
  (dw-desired-access :uint32)   ; DWORD
  (dw-service-type :uint32)   ; ENUM_SERVICE_TYPE
  (dw-start-type :uint32)   ; SERVICE_START_TYPE
  (dw-error-control :uint32)   ; SERVICE_ERROR
  (lp-binary-path-name :string)   ; LPCSTR optional
  (lp-load-order-group :string)   ; LPCSTR optional
  (lpdw-tag-id :pointer)   ; DWORD* optional, out
  (lp-dependencies :string)   ; LPCSTR optional
  (lp-service-start-name :string)   ; LPCSTR optional
  (lp-password :string))   ; LPCSTR optional
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $CreateServiceA = Win32::API::More->new('ADVAPI32',
    'HANDLE CreateServiceA(HANDLE hSCManager, LPCSTR lpServiceName, LPCSTR lpDisplayName, DWORD dwDesiredAccess, DWORD dwServiceType, DWORD dwStartType, DWORD dwErrorControl, LPCSTR lpBinaryPathName, LPCSTR lpLoadOrderGroup, LPVOID lpdwTagId, LPCSTR lpDependencies, LPCSTR lpServiceStartName, LPCSTR lpPassword)');
# my $ret = $CreateServiceA->Call($hSCManager, $lpServiceName, $lpDisplayName, $dwDesiredAccess, $dwServiceType, $dwStartType, $dwErrorControl, $lpBinaryPathName, $lpLoadOrderGroup, $lpdwTagId, $lpDependencies, $lpServiceStartName, $lpPassword);
# hSCManager : SC_HANDLE -> HANDLE
# lpServiceName : LPCSTR -> LPCSTR
# lpDisplayName : LPCSTR optional -> LPCSTR
# dwDesiredAccess : DWORD -> DWORD
# dwServiceType : ENUM_SERVICE_TYPE -> DWORD
# dwStartType : SERVICE_START_TYPE -> DWORD
# dwErrorControl : SERVICE_ERROR -> DWORD
# lpBinaryPathName : LPCSTR optional -> LPCSTR
# lpLoadOrderGroup : LPCSTR optional -> LPCSTR
# lpdwTagId : DWORD* optional, out -> LPVOID
# lpDependencies : LPCSTR optional -> LPCSTR
# lpServiceStartName : LPCSTR optional -> LPCSTR
# lpPassword : LPCSTR optional -> LPCSTR
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。