SLGetInstalledProductKeyIds

// SLC.dll
#include <windows.h>

HRESULT SLGetInstalledProductKeyIds(
    void* hSLC,
    const GUID* pProductSkuId,
    DWORD* pnProductKeyIds,
    GUID** ppProductKeyIds
);

<DllImport("SLC.dll", ExactSpelling:=True)>
Public Shared Function SLGetInstalledProductKeyIds(
    hSLC As IntPtr,   ' void*
    ByRef pProductSkuId As Guid,   ' GUID*
    <Out> ByRef pnProductKeyIds As UInteger,   ' DWORD* out
    ppProductKeyIds As IntPtr   ' GUID** out
) As Integer
End Function

' hSLC : void*
' pProductSkuId : GUID*
' pnProductKeyIds : DWORD* out
' ppProductKeyIds : GUID** out
Declare PtrSafe Function SLGetInstalledProductKeyIds Lib "slc" ( _
    ByVal hSLC As LongPtr, _
    ByVal pProductSkuId As LongPtr, _
    ByRef pnProductKeyIds As Long, _
    ByVal ppProductKeyIds 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

SLGetInstalledProductKeyIds = ctypes.windll.slc.SLGetInstalledProductKeyIds
SLGetInstalledProductKeyIds.restype = ctypes.c_int
SLGetInstalledProductKeyIds.argtypes = [
    ctypes.POINTER(None),  # hSLC : void*
    ctypes.c_void_p,  # pProductSkuId : GUID*
    ctypes.POINTER(wintypes.DWORD),  # pnProductKeyIds : DWORD* out
    ctypes.c_void_p,  # ppProductKeyIds : GUID** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('SLC.dll')
SLGetInstalledProductKeyIds = Fiddle::Function.new(
  lib['SLGetInstalledProductKeyIds'],
  [
    Fiddle::TYPE_VOIDP,  # hSLC : void*
    Fiddle::TYPE_VOIDP,  # pProductSkuId : GUID*
    Fiddle::TYPE_VOIDP,  # pnProductKeyIds : DWORD* out
    Fiddle::TYPE_VOIDP,  # ppProductKeyIds : GUID** out
  ],
  Fiddle::TYPE_INT)

#[link(name = "slc")]
extern "system" {
    fn SLGetInstalledProductKeyIds(
        hSLC: *mut (),  // void*
        pProductSkuId: *const GUID,  // GUID*
        pnProductKeyIds: *mut u32,  // DWORD* out
        ppProductKeyIds: *mut *mut GUID  // GUID** out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("SLC.dll")]
public static extern int SLGetInstalledProductKeyIds(IntPtr hSLC, ref Guid pProductSkuId, out uint pnProductKeyIds, IntPtr ppProductKeyIds);
"@
$api = Add-Type -MemberDefinition $sig -Name 'SLC_SLGetInstalledProductKeyIds' -Namespace Win32 -PassThru
# $api::SLGetInstalledProductKeyIds(hSLC, pProductSkuId, pnProductKeyIds, ppProductKeyIds)

#uselib "SLC.dll"
#func global SLGetInstalledProductKeyIds "SLGetInstalledProductKeyIds" sptr, sptr, sptr, sptr
; SLGetInstalledProductKeyIds hSLC, varptr(pProductSkuId), varptr(pnProductKeyIds), varptr(ppProductKeyIds)   ; 戻り値は stat
; hSLC : void* -> "sptr"
; pProductSkuId : GUID* -> "sptr"
; pnProductKeyIds : DWORD* out -> "sptr"
; ppProductKeyIds : GUID** 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 (
	slc = windows.NewLazySystemDLL("SLC.dll")
	procSLGetInstalledProductKeyIds = slc.NewProc("SLGetInstalledProductKeyIds")
)

// hSLC (void*), pProductSkuId (GUID*), pnProductKeyIds (DWORD* out), ppProductKeyIds (GUID** out)
r1, _, err := procSLGetInstalledProductKeyIds.Call(
	uintptr(hSLC),
	uintptr(pProductSkuId),
	uintptr(pnProductKeyIds),
	uintptr(ppProductKeyIds),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function SLGetInstalledProductKeyIds(
  hSLC: Pointer;   // void*
  pProductSkuId: PGUID;   // GUID*
  pnProductKeyIds: Pointer;   // DWORD* out
  ppProductKeyIds: PGUID   // GUID** out
): Integer; stdcall;
  external 'SLC.dll' name 'SLGetInstalledProductKeyIds';

result := DllCall("SLC\SLGetInstalledProductKeyIds"
    , "Ptr", hSLC   ; void*
    , "Ptr", pProductSkuId   ; GUID*
    , "Ptr", pnProductKeyIds   ; DWORD* out
    , "Ptr", ppProductKeyIds   ; GUID** out
    , "Int")   ; return: HRESULT

●SLGetInstalledProductKeyIds(hSLC, pProductSkuId, pnProductKeyIds, ppProductKeyIds) = DLL("SLC.dll", "int SLGetInstalledProductKeyIds(void*, void*, void*, void*)")
# 呼び出し: SLGetInstalledProductKeyIds(hSLC, pProductSkuId, pnProductKeyIds, ppProductKeyIds)
# hSLC : void* -> "void*"
# pProductSkuId : GUID* -> "void*"
# pnProductKeyIds : DWORD* out -> "void*"
# ppProductKeyIds : GUID** 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 "slc" fn SLGetInstalledProductKeyIds(
    hSLC: ?*anyopaque, // void*
    pProductSkuId: [*c]GUID, // GUID*
    pnProductKeyIds: [*c]u32, // DWORD* out
    ppProductKeyIds: [*c][*c]GUID // GUID** out
) callconv(std.os.windows.WINAPI) i32;

proc SLGetInstalledProductKeyIds(
    hSLC: pointer,  # void*
    pProductSkuId: ptr GUID,  # GUID*
    pnProductKeyIds: ptr uint32,  # DWORD* out
    ppProductKeyIds: ptr GUID  # GUID** out
): int32 {.importc: "SLGetInstalledProductKeyIds", stdcall, dynlib: "SLC.dll".}

pragma(lib, "slc");
extern(Windows)
int SLGetInstalledProductKeyIds(
    void* hSLC,   // void*
    GUID* pProductSkuId,   // GUID*
    uint* pnProductKeyIds,   // DWORD* out
    GUID** ppProductKeyIds   // GUID** out
);

ccall((:SLGetInstalledProductKeyIds, "SLC.dll"), stdcall, Int32,
      (Ptr{Cvoid}, Ptr{GUID}, Ptr{UInt32}, Ptr{GUID}),
      hSLC, pProductSkuId, pnProductKeyIds, ppProductKeyIds)
# hSLC : void* -> Ptr{Cvoid}
# pProductSkuId : GUID* -> Ptr{GUID}
# pnProductKeyIds : DWORD* out -> Ptr{UInt32}
# ppProductKeyIds : GUID** out -> Ptr{GUID}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t SLGetInstalledProductKeyIds(
    void* hSLC,
    void* pProductSkuId,
    uint32_t* pnProductKeyIds,
    void* ppProductKeyIds);
]]
local slc = ffi.load("slc")
-- slc.SLGetInstalledProductKeyIds(hSLC, pProductSkuId, pnProductKeyIds, ppProductKeyIds)
-- hSLC : void*
-- pProductSkuId : GUID*
-- pnProductKeyIds : DWORD* out
-- ppProductKeyIds : GUID** 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('SLC.dll');
const SLGetInstalledProductKeyIds = lib.func('__stdcall', 'SLGetInstalledProductKeyIds', 'int32_t', ['void *', 'void *', 'uint32_t *', 'void *']);
// SLGetInstalledProductKeyIds(hSLC, pProductSkuId, pnProductKeyIds, ppProductKeyIds)
// hSLC : void* -> 'void *'
// pProductSkuId : GUID* -> 'void *'
// pnProductKeyIds : DWORD* out -> 'uint32_t *'
// ppProductKeyIds : GUID** 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("SLC.dll", {
  SLGetInstalledProductKeyIds: { parameters: ["pointer", "pointer", "pointer", "pointer"], result: "i32" },
});
// lib.symbols.SLGetInstalledProductKeyIds(hSLC, pProductSkuId, pnProductKeyIds, ppProductKeyIds)
// hSLC : void* -> "pointer"
// pProductSkuId : GUID* -> "pointer"
// pnProductKeyIds : DWORD* out -> "pointer"
// ppProductKeyIds : GUID** out -> "pointer"
// 文字列引数は "buffer"(NUL 終端のバイト列を Uint8Array で渡す)。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。

<?php
$ffi = FFI::cdef(<<<C
int32_t SLGetInstalledProductKeyIds(
    void* hSLC,
    void* pProductSkuId,
    uint32_t* pnProductKeyIds,
    void* ppProductKeyIds);
C, "SLC.dll");
// $ffi->SLGetInstalledProductKeyIds(hSLC, pProductSkuId, pnProductKeyIds, ppProductKeyIds);
// hSLC : void*
// pProductSkuId : GUID*
// pnProductKeyIds : DWORD* out
// ppProductKeyIds : GUID** 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 Slc extends StdCallLibrary {
    Slc INSTANCE = Native.load("slc", Slc.class);
    int SLGetInstalledProductKeyIds(
        Pointer hSLC,   // void*
        Pointer pProductSkuId,   // GUID*
        IntByReference pnProductKeyIds,   // DWORD* out
        Pointer ppProductKeyIds   // GUID** out
    );
}

@[Link("slc")]
lib LibSLC
  fun SLGetInstalledProductKeyIds = SLGetInstalledProductKeyIds(
    hSLC : Void*,   # void*
    pProductSkuId : GUID*,   # GUID*
    pnProductKeyIds : UInt32*,   # DWORD* out
    ppProductKeyIds : GUID**   # GUID** 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 SLGetInstalledProductKeyIdsNative = Int32 Function(Pointer<Void>, Pointer<Void>, Pointer<Uint32>, Pointer<Void>);
typedef SLGetInstalledProductKeyIdsDart = int Function(Pointer<Void>, Pointer<Void>, Pointer<Uint32>, Pointer<Void>);
final SLGetInstalledProductKeyIds = DynamicLibrary.open('SLC.dll')
    .lookupFunction<SLGetInstalledProductKeyIdsNative, SLGetInstalledProductKeyIdsDart>('SLGetInstalledProductKeyIds');
// hSLC : void* -> Pointer<Void>
// pProductSkuId : GUID* -> Pointer<Void>
// pnProductKeyIds : DWORD* out -> Pointer<Uint32>
// ppProductKeyIds : GUID** out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function SLGetInstalledProductKeyIds(
  hSLC: Pointer;   // void*
  pProductSkuId: PGUID;   // GUID*
  pnProductKeyIds: Pointer;   // DWORD* out
  ppProductKeyIds: PGUID   // GUID** out
): Integer; stdcall;
  external 'SLC.dll' name 'SLGetInstalledProductKeyIds';

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

foreign import stdcall safe "SLGetInstalledProductKeyIds"
  c_SLGetInstalledProductKeyIds :: Ptr () -> Ptr () -> Ptr Word32 -> Ptr () -> IO Int32
-- hSLC : void* -> Ptr ()
-- pProductSkuId : GUID* -> Ptr ()
-- pnProductKeyIds : DWORD* out -> Ptr Word32
-- ppProductKeyIds : GUID** 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 slgetinstalledproductkeyids =
  foreign "SLGetInstalledProductKeyIds"
    ((ptr void) @-> (ptr void) @-> (ptr uint32_t) @-> (ptr void) @-> returning int32_t)
(* hSLC : void* -> (ptr void) *)
(* pProductSkuId : GUID* -> (ptr void) *)
(* pnProductKeyIds : DWORD* out -> (ptr uint32_t) *)
(* ppProductKeyIds : GUID** 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 slc (t "SLC.dll"))
(cffi:use-foreign-library slc)

(cffi:defcfun ("SLGetInstalledProductKeyIds" slget-installed-product-key-ids :convention :stdcall) :int32
  (h-slc :pointer)   ; void*
  (p-product-sku-id :pointer)   ; GUID*
  (pn-product-key-ids :pointer)   ; DWORD* out
  (pp-product-key-ids :pointer))   ; GUID** out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $SLGetInstalledProductKeyIds = Win32::API::More->new('SLC',
    'int SLGetInstalledProductKeyIds(LPVOID hSLC, LPVOID pProductSkuId, LPVOID pnProductKeyIds, LPVOID ppProductKeyIds)');
# my $ret = $SLGetInstalledProductKeyIds->Call($hSLC, $pProductSkuId, $pnProductKeyIds, $ppProductKeyIds);
# hSLC : void* -> LPVOID
# pProductSkuId : GUID* -> LPVOID
# pnProductKeyIds : DWORD* out -> LPVOID
# ppProductKeyIds : GUID** out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。