ホーム › Data.RightsManagement › DRMGetNameAndDescription

DRMGetNameAndDescription

関数

発行ライセンスの名前と説明を取得する。

DLLmsdrm.dll呼出規約winapi

シグネチャ

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

HRESULT DRMGetNameAndDescription(
    DWORD hIssuanceLicense,
    DWORD uIndex,
    DWORD* pulcid,
    DWORD* puNameLength,
    LPWSTR wszName,   // optional
    DWORD* puDescriptionLength,
    LPWSTR wszDescription   // optional
);

パラメーター

名前	型	方向	説明
hIssuanceLicense	DWORD	in	対象の発行ライセンスハンドル。
uIndex	DWORD	in	取得するエントリの0始まりのインデックス。
pulcid	DWORD*	inout	名前・説明のロケールIDを受け取るポインタ。
puNameLength	DWORD*	inout	入力時に名前バッファ長、出力時に必要長を示すポインタ。
wszName	LPWSTR	outoptional	ライセンス名を受け取る出力バッファ。NULLでサイズ問い合わせ可。
puDescriptionLength	DWORD*	inout	入力時に説明バッファ長、出力時に必要長を示すポインタ。
wszDescription	LPWSTR	outoptional	ライセンス説明を受け取る出力バッファ。NULLでサイズ問い合わせ可。

戻り値の型: HRESULT

各言語での呼び出し定義

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

HRESULT DRMGetNameAndDescription(
    DWORD hIssuanceLicense,
    DWORD uIndex,
    DWORD* pulcid,
    DWORD* puNameLength,
    LPWSTR wszName,   // optional
    DWORD* puDescriptionLength,
    LPWSTR wszDescription   // optional
);

[DllImport("msdrm.dll", ExactSpelling = true)]
static extern int DRMGetNameAndDescription(
    uint hIssuanceLicense,   // DWORD
    uint uIndex,   // DWORD
    ref uint pulcid,   // DWORD* in/out
    ref uint puNameLength,   // DWORD* in/out
    [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder wszName,   // LPWSTR optional, out
    ref uint puDescriptionLength,   // DWORD* in/out
    [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder wszDescription   // LPWSTR optional, out
);

<DllImport("msdrm.dll", ExactSpelling:=True)>
Public Shared Function DRMGetNameAndDescription(
    hIssuanceLicense As UInteger,   ' DWORD
    uIndex As UInteger,   ' DWORD
    ByRef pulcid As UInteger,   ' DWORD* in/out
    ByRef puNameLength As UInteger,   ' DWORD* in/out
    <MarshalAs(UnmanagedType.LPWStr)> wszName As System.Text.StringBuilder,   ' LPWSTR optional, out
    ByRef puDescriptionLength As UInteger,   ' DWORD* in/out
    <MarshalAs(UnmanagedType.LPWStr)> wszDescription As System.Text.StringBuilder   ' LPWSTR optional, out
) As Integer
End Function

' hIssuanceLicense : DWORD
' uIndex : DWORD
' pulcid : DWORD* in/out
' puNameLength : DWORD* in/out
' wszName : LPWSTR optional, out
' puDescriptionLength : DWORD* in/out
' wszDescription : LPWSTR optional, out
Declare PtrSafe Function DRMGetNameAndDescription Lib "msdrm" ( _
    ByVal hIssuanceLicense As Long, _
    ByVal uIndex As Long, _
    ByRef pulcid As Long, _
    ByRef puNameLength As Long, _
    ByVal wszName As LongPtr, _
    ByRef puDescriptionLength As Long, _
    ByVal wszDescription 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

DRMGetNameAndDescription = ctypes.windll.msdrm.DRMGetNameAndDescription
DRMGetNameAndDescription.restype = ctypes.c_int
DRMGetNameAndDescription.argtypes = [
    wintypes.DWORD,  # hIssuanceLicense : DWORD
    wintypes.DWORD,  # uIndex : DWORD
    ctypes.POINTER(wintypes.DWORD),  # pulcid : DWORD* in/out
    ctypes.POINTER(wintypes.DWORD),  # puNameLength : DWORD* in/out
    wintypes.LPWSTR,  # wszName : LPWSTR optional, out
    ctypes.POINTER(wintypes.DWORD),  # puDescriptionLength : DWORD* in/out
    wintypes.LPWSTR,  # wszDescription : LPWSTR optional, out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('msdrm.dll')
DRMGetNameAndDescription = Fiddle::Function.new(
  lib['DRMGetNameAndDescription'],
  [
    -Fiddle::TYPE_INT,  # hIssuanceLicense : DWORD
    -Fiddle::TYPE_INT,  # uIndex : DWORD
    Fiddle::TYPE_VOIDP,  # pulcid : DWORD* in/out
    Fiddle::TYPE_VOIDP,  # puNameLength : DWORD* in/out
    Fiddle::TYPE_VOIDP,  # wszName : LPWSTR optional, out
    Fiddle::TYPE_VOIDP,  # puDescriptionLength : DWORD* in/out
    Fiddle::TYPE_VOIDP,  # wszDescription : LPWSTR optional, out
  ],
  Fiddle::TYPE_INT)

#[link(name = "msdrm")]
extern "system" {
    fn DRMGetNameAndDescription(
        hIssuanceLicense: u32,  // DWORD
        uIndex: u32,  // DWORD
        pulcid: *mut u32,  // DWORD* in/out
        puNameLength: *mut u32,  // DWORD* in/out
        wszName: *mut u16,  // LPWSTR optional, out
        puDescriptionLength: *mut u32,  // DWORD* in/out
        wszDescription: *mut u16  // LPWSTR optional, out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("msdrm.dll")]
public static extern int DRMGetNameAndDescription(uint hIssuanceLicense, uint uIndex, ref uint pulcid, ref uint puNameLength, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder wszName, ref uint puDescriptionLength, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder wszDescription);
"@
$api = Add-Type -MemberDefinition $sig -Name 'msdrm_DRMGetNameAndDescription' -Namespace Win32 -PassThru
# $api::DRMGetNameAndDescription(hIssuanceLicense, uIndex, pulcid, puNameLength, wszName, puDescriptionLength, wszDescription)

#uselib "msdrm.dll"
#func global DRMGetNameAndDescription "DRMGetNameAndDescription" sptr, sptr, sptr, sptr, sptr, sptr, sptr
; DRMGetNameAndDescription hIssuanceLicense, uIndex, varptr(pulcid), varptr(puNameLength), varptr(wszName), varptr(puDescriptionLength), varptr(wszDescription)   ; 戻り値は stat
; hIssuanceLicense : DWORD -> "sptr"
; uIndex : DWORD -> "sptr"
; pulcid : DWORD* in/out -> "sptr"
; puNameLength : DWORD* in/out -> "sptr"
; wszName : LPWSTR optional, out -> "sptr"
; puDescriptionLength : DWORD* in/out -> "sptr"
; wszDescription : LPWSTR optional, 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。

出力引数:

#uselib "msdrm.dll"
#cfunc global DRMGetNameAndDescription "DRMGetNameAndDescription" int, int, var, var, var, var, var
; res = DRMGetNameAndDescription(hIssuanceLicense, uIndex, pulcid, puNameLength, wszName, puDescriptionLength, wszDescription)
; hIssuanceLicense : DWORD -> "int"
; uIndex : DWORD -> "int"
; pulcid : DWORD* in/out -> "var"
; puNameLength : DWORD* in/out -> "var"
; wszName : LPWSTR optional, out -> "var"
; puDescriptionLength : DWORD* in/out -> "var"
; wszDescription : LPWSTR optional, out -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。#uselib "msdrm.dll"
#cfunc global DRMGetNameAndDescription "DRMGetNameAndDescription" int, int, sptr, sptr, sptr, sptr, sptr
; res = DRMGetNameAndDescription(hIssuanceLicense, uIndex, varptr(pulcid), varptr(puNameLength), varptr(wszName), varptr(puDescriptionLength), varptr(wszDescription))
; hIssuanceLicense : DWORD -> "int"
; uIndex : DWORD -> "int"
; pulcid : DWORD* in/out -> "sptr"
; puNameLength : DWORD* in/out -> "sptr"
; wszName : LPWSTR optional, out -> "sptr"
; puDescriptionLength : DWORD* in/out -> "sptr"
; wszDescription : LPWSTR optional, out -> "sptr"
; ※出力/バッファ引数はポインタ方式(token=sptr / 呼び出しは varptr(変数))。

出力引数:

; HRESULT DRMGetNameAndDescription(DWORD hIssuanceLicense, DWORD uIndex, DWORD* pulcid, DWORD* puNameLength, LPWSTR wszName, DWORD* puDescriptionLength, LPWSTR wszDescription)
#uselib "msdrm.dll"
#cfunc global DRMGetNameAndDescription "DRMGetNameAndDescription" int, int, var, var, var, var, var
; res = DRMGetNameAndDescription(hIssuanceLicense, uIndex, pulcid, puNameLength, wszName, puDescriptionLength, wszDescription)
; hIssuanceLicense : DWORD -> "int"
; uIndex : DWORD -> "int"
; pulcid : DWORD* in/out -> "var"
; puNameLength : DWORD* in/out -> "var"
; wszName : LPWSTR optional, out -> "var"
; puDescriptionLength : DWORD* in/out -> "var"
; wszDescription : LPWSTR optional, out -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。; HRESULT DRMGetNameAndDescription(DWORD hIssuanceLicense, DWORD uIndex, DWORD* pulcid, DWORD* puNameLength, LPWSTR wszName, DWORD* puDescriptionLength, LPWSTR wszDescription)
#uselib "msdrm.dll"
#cfunc global DRMGetNameAndDescription "DRMGetNameAndDescription" int, int, intptr, intptr, intptr, intptr, intptr
; res = DRMGetNameAndDescription(hIssuanceLicense, uIndex, varptr(pulcid), varptr(puNameLength), varptr(wszName), varptr(puDescriptionLength), varptr(wszDescription))
; hIssuanceLicense : DWORD -> "int"
; uIndex : DWORD -> "int"
; pulcid : DWORD* in/out -> "intptr"
; puNameLength : DWORD* in/out -> "intptr"
; wszName : LPWSTR optional, out -> "intptr"
; puDescriptionLength : DWORD* in/out -> "intptr"
; wszDescription : LPWSTR optional, out -> "intptr"
; ※出力/バッファ引数はポインタ方式(token=intptr / 呼び出しは varptr(変数))。

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

var (
	msdrm = windows.NewLazySystemDLL("msdrm.dll")
	procDRMGetNameAndDescription = msdrm.NewProc("DRMGetNameAndDescription")
)

// hIssuanceLicense (DWORD), uIndex (DWORD), pulcid (DWORD* in/out), puNameLength (DWORD* in/out), wszName (LPWSTR optional, out), puDescriptionLength (DWORD* in/out), wszDescription (LPWSTR optional, out)
r1, _, err := procDRMGetNameAndDescription.Call(
	uintptr(hIssuanceLicense),
	uintptr(uIndex),
	uintptr(pulcid),
	uintptr(puNameLength),
	uintptr(wszName),
	uintptr(puDescriptionLength),
	uintptr(wszDescription),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function DRMGetNameAndDescription(
  hIssuanceLicense: DWORD;   // DWORD
  uIndex: DWORD;   // DWORD
  pulcid: Pointer;   // DWORD* in/out
  puNameLength: Pointer;   // DWORD* in/out
  wszName: PWideChar;   // LPWSTR optional, out
  puDescriptionLength: Pointer;   // DWORD* in/out
  wszDescription: PWideChar   // LPWSTR optional, out
): Integer; stdcall;
  external 'msdrm.dll' name 'DRMGetNameAndDescription';

result := DllCall("msdrm\DRMGetNameAndDescription"
    , "UInt", hIssuanceLicense   ; DWORD
    , "UInt", uIndex   ; DWORD
    , "Ptr", pulcid   ; DWORD* in/out
    , "Ptr", puNameLength   ; DWORD* in/out
    , "Ptr", wszName   ; LPWSTR optional, out
    , "Ptr", puDescriptionLength   ; DWORD* in/out
    , "Ptr", wszDescription   ; LPWSTR optional, out
    , "Int")   ; return: HRESULT

●DRMGetNameAndDescription(hIssuanceLicense, uIndex, pulcid, puNameLength, wszName, puDescriptionLength, wszDescription) = DLL("msdrm.dll", "int DRMGetNameAndDescription(dword, dword, void*, void*, char*, void*, char*)")
# 呼び出し: DRMGetNameAndDescription(hIssuanceLicense, uIndex, pulcid, puNameLength, wszName, puDescriptionLength, wszDescription)
# hIssuanceLicense : DWORD -> "dword"
# uIndex : DWORD -> "dword"
# pulcid : DWORD* in/out -> "void*"
# puNameLength : DWORD* in/out -> "void*"
# wszName : LPWSTR optional, out -> "char*"
# puDescriptionLength : DWORD* in/out -> "void*"
# wszDescription : LPWSTR optional, out -> "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 "msdrm" fn DRMGetNameAndDescription(
    hIssuanceLicense: u32, // DWORD
    uIndex: u32, // DWORD
    pulcid: [*c]u32, // DWORD* in/out
    puNameLength: [*c]u32, // DWORD* in/out
    wszName: [*c]u16, // LPWSTR optional, out
    puDescriptionLength: [*c]u32, // DWORD* in/out
    wszDescription: [*c]u16 // LPWSTR optional, out
) callconv(std.os.windows.WINAPI) i32;

proc DRMGetNameAndDescription(
    hIssuanceLicense: uint32,  # DWORD
    uIndex: uint32,  # DWORD
    pulcid: ptr uint32,  # DWORD* in/out
    puNameLength: ptr uint32,  # DWORD* in/out
    wszName: ptr uint16,  # LPWSTR optional, out
    puDescriptionLength: ptr uint32,  # DWORD* in/out
    wszDescription: ptr uint16  # LPWSTR optional, out
): int32 {.importc: "DRMGetNameAndDescription", stdcall, dynlib: "msdrm.dll".}

pragma(lib, "msdrm");
extern(Windows)
int DRMGetNameAndDescription(
    uint hIssuanceLicense,   // DWORD
    uint uIndex,   // DWORD
    uint* pulcid,   // DWORD* in/out
    uint* puNameLength,   // DWORD* in/out
    wchar* wszName,   // LPWSTR optional, out
    uint* puDescriptionLength,   // DWORD* in/out
    wchar* wszDescription   // LPWSTR optional, out
);

ccall((:DRMGetNameAndDescription, "msdrm.dll"), stdcall, Int32,
      (UInt32, UInt32, Ptr{UInt32}, Ptr{UInt32}, Ptr{UInt16}, Ptr{UInt32}, Ptr{UInt16}),
      hIssuanceLicense, uIndex, pulcid, puNameLength, wszName, puDescriptionLength, wszDescription)
# hIssuanceLicense : DWORD -> UInt32
# uIndex : DWORD -> UInt32
# pulcid : DWORD* in/out -> Ptr{UInt32}
# puNameLength : DWORD* in/out -> Ptr{UInt32}
# wszName : LPWSTR optional, out -> Ptr{UInt16}
# puDescriptionLength : DWORD* in/out -> Ptr{UInt32}
# wszDescription : LPWSTR optional, out -> Ptr{UInt16}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t DRMGetNameAndDescription(
    uint32_t hIssuanceLicense,
    uint32_t uIndex,
    uint32_t* pulcid,
    uint32_t* puNameLength,
    uint16_t* wszName,
    uint32_t* puDescriptionLength,
    uint16_t* wszDescription);
]]
local msdrm = ffi.load("msdrm")
-- msdrm.DRMGetNameAndDescription(hIssuanceLicense, uIndex, pulcid, puNameLength, wszName, puDescriptionLength, wszDescription)
-- hIssuanceLicense : DWORD
-- uIndex : DWORD
-- pulcid : DWORD* in/out
-- puNameLength : DWORD* in/out
-- wszName : LPWSTR optional, out
-- puDescriptionLength : DWORD* in/out
-- wszDescription : LPWSTR optional, 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('msdrm.dll');
const DRMGetNameAndDescription = lib.func('__stdcall', 'DRMGetNameAndDescription', 'int32_t', ['uint32_t', 'uint32_t', 'uint32_t *', 'uint32_t *', 'uint16_t *', 'uint32_t *', 'uint16_t *']);
// DRMGetNameAndDescription(hIssuanceLicense, uIndex, pulcid, puNameLength, wszName, puDescriptionLength, wszDescription)
// hIssuanceLicense : DWORD -> 'uint32_t'
// uIndex : DWORD -> 'uint32_t'
// pulcid : DWORD* in/out -> 'uint32_t *'
// puNameLength : DWORD* in/out -> 'uint32_t *'
// wszName : LPWSTR optional, out -> 'uint16_t *'
// puDescriptionLength : DWORD* in/out -> 'uint32_t *'
// wszDescription : LPWSTR optional, out -> 'uint16_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("msdrm.dll", {
  DRMGetNameAndDescription: { parameters: ["u32", "u32", "pointer", "pointer", "buffer", "pointer", "buffer"], result: "i32" },
});
// lib.symbols.DRMGetNameAndDescription(hIssuanceLicense, uIndex, pulcid, puNameLength, wszName, puDescriptionLength, wszDescription)
// hIssuanceLicense : DWORD -> "u32"
// uIndex : DWORD -> "u32"
// pulcid : DWORD* in/out -> "pointer"
// puNameLength : DWORD* in/out -> "pointer"
// wszName : LPWSTR optional, out -> "buffer"
// puDescriptionLength : DWORD* in/out -> "pointer"
// wszDescription : LPWSTR optional, out -> "buffer"
// 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 DRMGetNameAndDescription(
    uint32_t hIssuanceLicense,
    uint32_t uIndex,
    uint32_t* pulcid,
    uint32_t* puNameLength,
    uint16_t* wszName,
    uint32_t* puDescriptionLength,
    uint16_t* wszDescription);
C, "msdrm.dll");
// $ffi->DRMGetNameAndDescription(hIssuanceLicense, uIndex, pulcid, puNameLength, wszName, puDescriptionLength, wszDescription);
// hIssuanceLicense : DWORD
// uIndex : DWORD
// pulcid : DWORD* in/out
// puNameLength : DWORD* in/out
// wszName : LPWSTR optional, out
// puDescriptionLength : DWORD* in/out
// wszDescription : LPWSTR optional, 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 Msdrm extends StdCallLibrary {
    Msdrm INSTANCE = Native.load("msdrm", Msdrm.class);
    int DRMGetNameAndDescription(
        int hIssuanceLicense,   // DWORD
        int uIndex,   // DWORD
        IntByReference pulcid,   // DWORD* in/out
        IntByReference puNameLength,   // DWORD* in/out
        char[] wszName,   // LPWSTR optional, out
        IntByReference puDescriptionLength,   // DWORD* in/out
        char[] wszDescription   // LPWSTR optional, out
    );
}

@[Link("msdrm")]
lib Libmsdrm
  fun DRMGetNameAndDescription = DRMGetNameAndDescription(
    hIssuanceLicense : UInt32,   # DWORD
    uIndex : UInt32,   # DWORD
    pulcid : UInt32*,   # DWORD* in/out
    puNameLength : UInt32*,   # DWORD* in/out
    wszName : UInt16*,   # LPWSTR optional, out
    puDescriptionLength : UInt32*,   # DWORD* in/out
    wszDescription : UInt16*   # LPWSTR optional, 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 DRMGetNameAndDescriptionNative = Int32 Function(Uint32, Uint32, Pointer<Uint32>, Pointer<Uint32>, Pointer<Utf16>, Pointer<Uint32>, Pointer<Utf16>);
typedef DRMGetNameAndDescriptionDart = int Function(int, int, Pointer<Uint32>, Pointer<Uint32>, Pointer<Utf16>, Pointer<Uint32>, Pointer<Utf16>);
final DRMGetNameAndDescription = DynamicLibrary.open('msdrm.dll')
    .lookupFunction<DRMGetNameAndDescriptionNative, DRMGetNameAndDescriptionDart>('DRMGetNameAndDescription');
// hIssuanceLicense : DWORD -> Uint32
// uIndex : DWORD -> Uint32
// pulcid : DWORD* in/out -> Pointer<Uint32>
// puNameLength : DWORD* in/out -> Pointer<Uint32>
// wszName : LPWSTR optional, out -> Pointer<Utf16>
// puDescriptionLength : DWORD* in/out -> Pointer<Uint32>
// wszDescription : LPWSTR optional, out -> Pointer<Utf16>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function DRMGetNameAndDescription(
  hIssuanceLicense: DWORD;   // DWORD
  uIndex: DWORD;   // DWORD
  pulcid: Pointer;   // DWORD* in/out
  puNameLength: Pointer;   // DWORD* in/out
  wszName: PWideChar;   // LPWSTR optional, out
  puDescriptionLength: Pointer;   // DWORD* in/out
  wszDescription: PWideChar   // LPWSTR optional, out
): Integer; stdcall;
  external 'msdrm.dll' name 'DRMGetNameAndDescription';

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

foreign import stdcall safe "DRMGetNameAndDescription"
  c_DRMGetNameAndDescription :: Word32 -> Word32 -> Ptr Word32 -> Ptr Word32 -> CWString -> Ptr Word32 -> CWString -> IO Int32
-- hIssuanceLicense : DWORD -> Word32
-- uIndex : DWORD -> Word32
-- pulcid : DWORD* in/out -> Ptr Word32
-- puNameLength : DWORD* in/out -> Ptr Word32
-- wszName : LPWSTR optional, out -> CWString
-- puDescriptionLength : DWORD* in/out -> Ptr Word32
-- wszDescription : LPWSTR optional, out -> CWString
-- 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 drmgetnameanddescription =
  foreign "DRMGetNameAndDescription"
    (uint32_t @-> uint32_t @-> (ptr uint32_t) @-> (ptr uint32_t) @-> (ptr uint16_t) @-> (ptr uint32_t) @-> (ptr uint16_t) @-> returning int32_t)
(* hIssuanceLicense : DWORD -> uint32_t *)
(* uIndex : DWORD -> uint32_t *)
(* pulcid : DWORD* in/out -> (ptr uint32_t) *)
(* puNameLength : DWORD* in/out -> (ptr uint32_t) *)
(* wszName : LPWSTR optional, out -> (ptr uint16_t) *)
(* puDescriptionLength : DWORD* in/out -> (ptr uint32_t) *)
(* wszDescription : LPWSTR optional, out -> (ptr uint16_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 msdrm (t "msdrm.dll"))
(cffi:use-foreign-library msdrm)

(cffi:defcfun ("DRMGetNameAndDescription" drmget-name-and-description :convention :stdcall) :int32
  (h-issuance-license :uint32)   ; DWORD
  (u-index :uint32)   ; DWORD
  (pulcid :pointer)   ; DWORD* in/out
  (pu-name-length :pointer)   ; DWORD* in/out
  (wsz-name :pointer)   ; LPWSTR optional, out
  (pu-description-length :pointer)   ; DWORD* in/out
  (wsz-description :pointer))   ; LPWSTR optional, out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $DRMGetNameAndDescription = Win32::API::More->new('msdrm',
    'int DRMGetNameAndDescription(DWORD hIssuanceLicense, DWORD uIndex, LPVOID pulcid, LPVOID puNameLength, LPWSTR wszName, LPVOID puDescriptionLength, LPWSTR wszDescription)');
# my $ret = $DRMGetNameAndDescription->Call($hIssuanceLicense, $uIndex, $pulcid, $puNameLength, $wszName, $puDescriptionLength, $wszDescription);
# hIssuanceLicense : DWORD -> DWORD
# uIndex : DWORD -> DWORD
# pulcid : DWORD* in/out -> LPVOID
# puNameLength : DWORD* in/out -> LPVOID
# wszName : LPWSTR optional, out -> LPWSTR
# puDescriptionLength : DWORD* in/out -> LPVOID
# wszDescription : LPWSTR optional, out -> LPWSTR
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。