SLGetLicense

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

HRESULT SLGetLicense(
    void* hSLC,
    const GUID* pLicenseFileId,
    DWORD* pcbLicenseFile,
    BYTE** ppbLicenseFile
);

<DllImport("SLC.dll", ExactSpelling:=True)>
Public Shared Function SLGetLicense(
    hSLC As IntPtr,   ' void*
    ByRef pLicenseFileId As Guid,   ' GUID*
    <Out> ByRef pcbLicenseFile As UInteger,   ' DWORD* out
    ppbLicenseFile As IntPtr   ' BYTE** out
) As Integer
End Function

' hSLC : void*
' pLicenseFileId : GUID*
' pcbLicenseFile : DWORD* out
' ppbLicenseFile : BYTE** out
Declare PtrSafe Function SLGetLicense Lib "slc" ( _
    ByVal hSLC As LongPtr, _
    ByVal pLicenseFileId As LongPtr, _
    ByRef pcbLicenseFile As Long, _
    ByVal ppbLicenseFile 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

SLGetLicense = ctypes.windll.slc.SLGetLicense
SLGetLicense.restype = ctypes.c_int
SLGetLicense.argtypes = [
    ctypes.POINTER(None),  # hSLC : void*
    ctypes.c_void_p,  # pLicenseFileId : GUID*
    ctypes.POINTER(wintypes.DWORD),  # pcbLicenseFile : DWORD* out
    ctypes.c_void_p,  # ppbLicenseFile : BYTE** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('SLC.dll')
SLGetLicense = Fiddle::Function.new(
  lib['SLGetLicense'],
  [
    Fiddle::TYPE_VOIDP,  # hSLC : void*
    Fiddle::TYPE_VOIDP,  # pLicenseFileId : GUID*
    Fiddle::TYPE_VOIDP,  # pcbLicenseFile : DWORD* out
    Fiddle::TYPE_VOIDP,  # ppbLicenseFile : BYTE** out
  ],
  Fiddle::TYPE_INT)

#[link(name = "slc")]
extern "system" {
    fn SLGetLicense(
        hSLC: *mut (),  // void*
        pLicenseFileId: *const GUID,  // GUID*
        pcbLicenseFile: *mut u32,  // DWORD* out
        ppbLicenseFile: *mut *mut u8  // BYTE** out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("SLC.dll")]
public static extern int SLGetLicense(IntPtr hSLC, ref Guid pLicenseFileId, out uint pcbLicenseFile, IntPtr ppbLicenseFile);
"@
$api = Add-Type -MemberDefinition $sig -Name 'SLC_SLGetLicense' -Namespace Win32 -PassThru
# $api::SLGetLicense(hSLC, pLicenseFileId, pcbLicenseFile, ppbLicenseFile)

#uselib "SLC.dll"
#func global SLGetLicense "SLGetLicense" sptr, sptr, sptr, sptr
; SLGetLicense hSLC, varptr(pLicenseFileId), varptr(pcbLicenseFile), varptr(ppbLicenseFile)   ; 戻り値は stat
; hSLC : void* -> "sptr"
; pLicenseFileId : GUID* -> "sptr"
; pcbLicenseFile : DWORD* out -> "sptr"
; ppbLicenseFile : BYTE** 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")
	procSLGetLicense = slc.NewProc("SLGetLicense")
)

// hSLC (void*), pLicenseFileId (GUID*), pcbLicenseFile (DWORD* out), ppbLicenseFile (BYTE** out)
r1, _, err := procSLGetLicense.Call(
	uintptr(hSLC),
	uintptr(pLicenseFileId),
	uintptr(pcbLicenseFile),
	uintptr(ppbLicenseFile),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function SLGetLicense(
  hSLC: Pointer;   // void*
  pLicenseFileId: PGUID;   // GUID*
  pcbLicenseFile: Pointer;   // DWORD* out
  ppbLicenseFile: Pointer   // BYTE** out
): Integer; stdcall;
  external 'SLC.dll' name 'SLGetLicense';

result := DllCall("SLC\SLGetLicense"
    , "Ptr", hSLC   ; void*
    , "Ptr", pLicenseFileId   ; GUID*
    , "Ptr", pcbLicenseFile   ; DWORD* out
    , "Ptr", ppbLicenseFile   ; BYTE** out
    , "Int")   ; return: HRESULT

●SLGetLicense(hSLC, pLicenseFileId, pcbLicenseFile, ppbLicenseFile) = DLL("SLC.dll", "int SLGetLicense(void*, void*, void*, void*)")
# 呼び出し: SLGetLicense(hSLC, pLicenseFileId, pcbLicenseFile, ppbLicenseFile)
# hSLC : void* -> "void*"
# pLicenseFileId : GUID* -> "void*"
# pcbLicenseFile : DWORD* out -> "void*"
# ppbLicenseFile : BYTE** 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 SLGetLicense(
    hSLC: ?*anyopaque, // void*
    pLicenseFileId: [*c]GUID, // GUID*
    pcbLicenseFile: [*c]u32, // DWORD* out
    ppbLicenseFile: [*c][*c]u8 // BYTE** out
) callconv(std.os.windows.WINAPI) i32;

proc SLGetLicense(
    hSLC: pointer,  # void*
    pLicenseFileId: ptr GUID,  # GUID*
    pcbLicenseFile: ptr uint32,  # DWORD* out
    ppbLicenseFile: ptr uint8  # BYTE** out
): int32 {.importc: "SLGetLicense", stdcall, dynlib: "SLC.dll".}

pragma(lib, "slc");
extern(Windows)
int SLGetLicense(
    void* hSLC,   // void*
    GUID* pLicenseFileId,   // GUID*
    uint* pcbLicenseFile,   // DWORD* out
    ubyte** ppbLicenseFile   // BYTE** out
);

ccall((:SLGetLicense, "SLC.dll"), stdcall, Int32,
      (Ptr{Cvoid}, Ptr{GUID}, Ptr{UInt32}, Ptr{UInt8}),
      hSLC, pLicenseFileId, pcbLicenseFile, ppbLicenseFile)
# hSLC : void* -> Ptr{Cvoid}
# pLicenseFileId : GUID* -> Ptr{GUID}
# pcbLicenseFile : DWORD* out -> Ptr{UInt32}
# ppbLicenseFile : BYTE** out -> Ptr{UInt8}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t SLGetLicense(
    void* hSLC,
    void* pLicenseFileId,
    uint32_t* pcbLicenseFile,
    uint8_t** ppbLicenseFile);
]]
local slc = ffi.load("slc")
-- slc.SLGetLicense(hSLC, pLicenseFileId, pcbLicenseFile, ppbLicenseFile)
-- hSLC : void*
-- pLicenseFileId : GUID*
-- pcbLicenseFile : DWORD* out
-- ppbLicenseFile : BYTE** 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 SLGetLicense = lib.func('__stdcall', 'SLGetLicense', 'int32_t', ['void *', 'void *', 'uint32_t *', 'uint8_t *']);
// SLGetLicense(hSLC, pLicenseFileId, pcbLicenseFile, ppbLicenseFile)
// hSLC : void* -> 'void *'
// pLicenseFileId : GUID* -> 'void *'
// pcbLicenseFile : DWORD* out -> 'uint32_t *'
// ppbLicenseFile : BYTE** out -> 'uint8_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("SLC.dll", {
  SLGetLicense: { parameters: ["pointer", "pointer", "pointer", "pointer"], result: "i32" },
});
// lib.symbols.SLGetLicense(hSLC, pLicenseFileId, pcbLicenseFile, ppbLicenseFile)
// hSLC : void* -> "pointer"
// pLicenseFileId : GUID* -> "pointer"
// pcbLicenseFile : DWORD* out -> "pointer"
// ppbLicenseFile : BYTE** 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 SLGetLicense(
    void* hSLC,
    void* pLicenseFileId,
    uint32_t* pcbLicenseFile,
    uint8_t** ppbLicenseFile);
C, "SLC.dll");
// $ffi->SLGetLicense(hSLC, pLicenseFileId, pcbLicenseFile, ppbLicenseFile);
// hSLC : void*
// pLicenseFileId : GUID*
// pcbLicenseFile : DWORD* out
// ppbLicenseFile : BYTE** 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 SLGetLicense(
        Pointer hSLC,   // void*
        Pointer pLicenseFileId,   // GUID*
        IntByReference pcbLicenseFile,   // DWORD* out
        Pointer ppbLicenseFile   // BYTE** out
    );
}

@[Link("slc")]
lib LibSLC
  fun SLGetLicense = SLGetLicense(
    hSLC : Void*,   # void*
    pLicenseFileId : GUID*,   # GUID*
    pcbLicenseFile : UInt32*,   # DWORD* out
    ppbLicenseFile : UInt8**   # BYTE** 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 SLGetLicenseNative = Int32 Function(Pointer<Void>, Pointer<Void>, Pointer<Uint32>, Pointer<Uint8>);
typedef SLGetLicenseDart = int Function(Pointer<Void>, Pointer<Void>, Pointer<Uint32>, Pointer<Uint8>);
final SLGetLicense = DynamicLibrary.open('SLC.dll')
    .lookupFunction<SLGetLicenseNative, SLGetLicenseDart>('SLGetLicense');
// hSLC : void* -> Pointer<Void>
// pLicenseFileId : GUID* -> Pointer<Void>
// pcbLicenseFile : DWORD* out -> Pointer<Uint32>
// ppbLicenseFile : BYTE** out -> Pointer<Uint8>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function SLGetLicense(
  hSLC: Pointer;   // void*
  pLicenseFileId: PGUID;   // GUID*
  pcbLicenseFile: Pointer;   // DWORD* out
  ppbLicenseFile: Pointer   // BYTE** out
): Integer; stdcall;
  external 'SLC.dll' name 'SLGetLicense';

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

foreign import stdcall safe "SLGetLicense"
  c_SLGetLicense :: Ptr () -> Ptr () -> Ptr Word32 -> Ptr Word8 -> IO Int32
-- hSLC : void* -> Ptr ()
-- pLicenseFileId : GUID* -> Ptr ()
-- pcbLicenseFile : DWORD* out -> Ptr Word32
-- ppbLicenseFile : BYTE** out -> Ptr Word8
-- 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 slgetlicense =
  foreign "SLGetLicense"
    ((ptr void) @-> (ptr void) @-> (ptr uint32_t) @-> (ptr uint8_t) @-> returning int32_t)
(* hSLC : void* -> (ptr void) *)
(* pLicenseFileId : GUID* -> (ptr void) *)
(* pcbLicenseFile : DWORD* out -> (ptr uint32_t) *)
(* ppbLicenseFile : BYTE** out -> (ptr uint8_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 slc (t "SLC.dll"))
(cffi:use-foreign-library slc)

(cffi:defcfun ("SLGetLicense" slget-license :convention :stdcall) :int32
  (h-slc :pointer)   ; void*
  (p-license-file-id :pointer)   ; GUID*
  (pcb-license-file :pointer)   ; DWORD* out
  (ppb-license-file :pointer))   ; BYTE** out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

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