DRMGetMetaData

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

HRESULT DRMGetMetaData(
    DWORD hIssuanceLicense,
    DWORD* puContentIdLength,
    LPWSTR wszContentId,   // optional
    DWORD* puContentIdTypeLength,
    LPWSTR wszContentIdType,   // optional
    DWORD* puSKUIdLength,
    LPWSTR wszSKUId,   // optional
    DWORD* puSKUIdTypeLength,
    LPWSTR wszSKUIdType,   // optional
    DWORD* puContentTypeLength,
    LPWSTR wszContentType,   // optional
    DWORD* puContentNameLength,
    LPWSTR wszContentName   // optional
);

<DllImport("msdrm.dll", ExactSpelling:=True)>
Public Shared Function DRMGetMetaData(
    hIssuanceLicense As UInteger,   ' DWORD
    ByRef puContentIdLength As UInteger,   ' DWORD* in/out
    <MarshalAs(UnmanagedType.LPWStr)> wszContentId As System.Text.StringBuilder,   ' LPWSTR optional, out
    ByRef puContentIdTypeLength As UInteger,   ' DWORD* in/out
    <MarshalAs(UnmanagedType.LPWStr)> wszContentIdType As System.Text.StringBuilder,   ' LPWSTR optional, out
    ByRef puSKUIdLength As UInteger,   ' DWORD* in/out
    <MarshalAs(UnmanagedType.LPWStr)> wszSKUId As System.Text.StringBuilder,   ' LPWSTR optional, out
    ByRef puSKUIdTypeLength As UInteger,   ' DWORD* in/out
    <MarshalAs(UnmanagedType.LPWStr)> wszSKUIdType As System.Text.StringBuilder,   ' LPWSTR optional, out
    ByRef puContentTypeLength As UInteger,   ' DWORD* in/out
    <MarshalAs(UnmanagedType.LPWStr)> wszContentType As System.Text.StringBuilder,   ' LPWSTR optional, out
    ByRef puContentNameLength As UInteger,   ' DWORD* in/out
    <MarshalAs(UnmanagedType.LPWStr)> wszContentName As System.Text.StringBuilder   ' LPWSTR optional, out
) As Integer
End Function

' hIssuanceLicense : DWORD
' puContentIdLength : DWORD* in/out
' wszContentId : LPWSTR optional, out
' puContentIdTypeLength : DWORD* in/out
' wszContentIdType : LPWSTR optional, out
' puSKUIdLength : DWORD* in/out
' wszSKUId : LPWSTR optional, out
' puSKUIdTypeLength : DWORD* in/out
' wszSKUIdType : LPWSTR optional, out
' puContentTypeLength : DWORD* in/out
' wszContentType : LPWSTR optional, out
' puContentNameLength : DWORD* in/out
' wszContentName : LPWSTR optional, out
Declare PtrSafe Function DRMGetMetaData Lib "msdrm" ( _
    ByVal hIssuanceLicense As Long, _
    ByRef puContentIdLength As Long, _
    ByVal wszContentId As LongPtr, _
    ByRef puContentIdTypeLength As Long, _
    ByVal wszContentIdType As LongPtr, _
    ByRef puSKUIdLength As Long, _
    ByVal wszSKUId As LongPtr, _
    ByRef puSKUIdTypeLength As Long, _
    ByVal wszSKUIdType As LongPtr, _
    ByRef puContentTypeLength As Long, _
    ByVal wszContentType As LongPtr, _
    ByRef puContentNameLength As Long, _
    ByVal wszContentName 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

DRMGetMetaData = ctypes.windll.msdrm.DRMGetMetaData
DRMGetMetaData.restype = ctypes.c_int
DRMGetMetaData.argtypes = [
    wintypes.DWORD,  # hIssuanceLicense : DWORD
    ctypes.POINTER(wintypes.DWORD),  # puContentIdLength : DWORD* in/out
    wintypes.LPWSTR,  # wszContentId : LPWSTR optional, out
    ctypes.POINTER(wintypes.DWORD),  # puContentIdTypeLength : DWORD* in/out
    wintypes.LPWSTR,  # wszContentIdType : LPWSTR optional, out
    ctypes.POINTER(wintypes.DWORD),  # puSKUIdLength : DWORD* in/out
    wintypes.LPWSTR,  # wszSKUId : LPWSTR optional, out
    ctypes.POINTER(wintypes.DWORD),  # puSKUIdTypeLength : DWORD* in/out
    wintypes.LPWSTR,  # wszSKUIdType : LPWSTR optional, out
    ctypes.POINTER(wintypes.DWORD),  # puContentTypeLength : DWORD* in/out
    wintypes.LPWSTR,  # wszContentType : LPWSTR optional, out
    ctypes.POINTER(wintypes.DWORD),  # puContentNameLength : DWORD* in/out
    wintypes.LPWSTR,  # wszContentName : LPWSTR optional, out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('msdrm.dll')
DRMGetMetaData = Fiddle::Function.new(
  lib['DRMGetMetaData'],
  [
    -Fiddle::TYPE_INT,  # hIssuanceLicense : DWORD
    Fiddle::TYPE_VOIDP,  # puContentIdLength : DWORD* in/out
    Fiddle::TYPE_VOIDP,  # wszContentId : LPWSTR optional, out
    Fiddle::TYPE_VOIDP,  # puContentIdTypeLength : DWORD* in/out
    Fiddle::TYPE_VOIDP,  # wszContentIdType : LPWSTR optional, out
    Fiddle::TYPE_VOIDP,  # puSKUIdLength : DWORD* in/out
    Fiddle::TYPE_VOIDP,  # wszSKUId : LPWSTR optional, out
    Fiddle::TYPE_VOIDP,  # puSKUIdTypeLength : DWORD* in/out
    Fiddle::TYPE_VOIDP,  # wszSKUIdType : LPWSTR optional, out
    Fiddle::TYPE_VOIDP,  # puContentTypeLength : DWORD* in/out
    Fiddle::TYPE_VOIDP,  # wszContentType : LPWSTR optional, out
    Fiddle::TYPE_VOIDP,  # puContentNameLength : DWORD* in/out
    Fiddle::TYPE_VOIDP,  # wszContentName : LPWSTR optional, out
  ],
  Fiddle::TYPE_INT)

#[link(name = "msdrm")]
extern "system" {
    fn DRMGetMetaData(
        hIssuanceLicense: u32,  // DWORD
        puContentIdLength: *mut u32,  // DWORD* in/out
        wszContentId: *mut u16,  // LPWSTR optional, out
        puContentIdTypeLength: *mut u32,  // DWORD* in/out
        wszContentIdType: *mut u16,  // LPWSTR optional, out
        puSKUIdLength: *mut u32,  // DWORD* in/out
        wszSKUId: *mut u16,  // LPWSTR optional, out
        puSKUIdTypeLength: *mut u32,  // DWORD* in/out
        wszSKUIdType: *mut u16,  // LPWSTR optional, out
        puContentTypeLength: *mut u32,  // DWORD* in/out
        wszContentType: *mut u16,  // LPWSTR optional, out
        puContentNameLength: *mut u32,  // DWORD* in/out
        wszContentName: *mut u16  // LPWSTR optional, out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("msdrm.dll")]
public static extern int DRMGetMetaData(uint hIssuanceLicense, ref uint puContentIdLength, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder wszContentId, ref uint puContentIdTypeLength, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder wszContentIdType, ref uint puSKUIdLength, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder wszSKUId, ref uint puSKUIdTypeLength, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder wszSKUIdType, ref uint puContentTypeLength, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder wszContentType, ref uint puContentNameLength, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder wszContentName);
"@
$api = Add-Type -MemberDefinition $sig -Name 'msdrm_DRMGetMetaData' -Namespace Win32 -PassThru
# $api::DRMGetMetaData(hIssuanceLicense, puContentIdLength, wszContentId, puContentIdTypeLength, wszContentIdType, puSKUIdLength, wszSKUId, puSKUIdTypeLength, wszSKUIdType, puContentTypeLength, wszContentType, puContentNameLength, wszContentName)

#uselib "msdrm.dll"
#func global DRMGetMetaData "DRMGetMetaData" sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr
; DRMGetMetaData hIssuanceLicense, varptr(puContentIdLength), varptr(wszContentId), varptr(puContentIdTypeLength), varptr(wszContentIdType), varptr(puSKUIdLength), varptr(wszSKUId), varptr(puSKUIdTypeLength), varptr(wszSKUIdType), varptr(puContentTypeLength), varptr(wszContentType), varptr(puContentNameLength), varptr(wszContentName)   ; 戻り値は stat
; hIssuanceLicense : DWORD -> "sptr"
; puContentIdLength : DWORD* in/out -> "sptr"
; wszContentId : LPWSTR optional, out -> "sptr"
; puContentIdTypeLength : DWORD* in/out -> "sptr"
; wszContentIdType : LPWSTR optional, out -> "sptr"
; puSKUIdLength : DWORD* in/out -> "sptr"
; wszSKUId : LPWSTR optional, out -> "sptr"
; puSKUIdTypeLength : DWORD* in/out -> "sptr"
; wszSKUIdType : LPWSTR optional, out -> "sptr"
; puContentTypeLength : DWORD* in/out -> "sptr"
; wszContentType : LPWSTR optional, out -> "sptr"
; puContentNameLength : DWORD* in/out -> "sptr"
; wszContentName : 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。

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

var (
	msdrm = windows.NewLazySystemDLL("msdrm.dll")
	procDRMGetMetaData = msdrm.NewProc("DRMGetMetaData")
)

// hIssuanceLicense (DWORD), puContentIdLength (DWORD* in/out), wszContentId (LPWSTR optional, out), puContentIdTypeLength (DWORD* in/out), wszContentIdType (LPWSTR optional, out), puSKUIdLength (DWORD* in/out), wszSKUId (LPWSTR optional, out), puSKUIdTypeLength (DWORD* in/out), wszSKUIdType (LPWSTR optional, out), puContentTypeLength (DWORD* in/out), wszContentType (LPWSTR optional, out), puContentNameLength (DWORD* in/out), wszContentName (LPWSTR optional, out)
r1, _, err := procDRMGetMetaData.Call(
	uintptr(hIssuanceLicense),
	uintptr(puContentIdLength),
	uintptr(wszContentId),
	uintptr(puContentIdTypeLength),
	uintptr(wszContentIdType),
	uintptr(puSKUIdLength),
	uintptr(wszSKUId),
	uintptr(puSKUIdTypeLength),
	uintptr(wszSKUIdType),
	uintptr(puContentTypeLength),
	uintptr(wszContentType),
	uintptr(puContentNameLength),
	uintptr(wszContentName),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function DRMGetMetaData(
  hIssuanceLicense: DWORD;   // DWORD
  puContentIdLength: Pointer;   // DWORD* in/out
  wszContentId: PWideChar;   // LPWSTR optional, out
  puContentIdTypeLength: Pointer;   // DWORD* in/out
  wszContentIdType: PWideChar;   // LPWSTR optional, out
  puSKUIdLength: Pointer;   // DWORD* in/out
  wszSKUId: PWideChar;   // LPWSTR optional, out
  puSKUIdTypeLength: Pointer;   // DWORD* in/out
  wszSKUIdType: PWideChar;   // LPWSTR optional, out
  puContentTypeLength: Pointer;   // DWORD* in/out
  wszContentType: PWideChar;   // LPWSTR optional, out
  puContentNameLength: Pointer;   // DWORD* in/out
  wszContentName: PWideChar   // LPWSTR optional, out
): Integer; stdcall;
  external 'msdrm.dll' name 'DRMGetMetaData';

result := DllCall("msdrm\DRMGetMetaData"
    , "UInt", hIssuanceLicense   ; DWORD
    , "Ptr", puContentIdLength   ; DWORD* in/out
    , "Ptr", wszContentId   ; LPWSTR optional, out
    , "Ptr", puContentIdTypeLength   ; DWORD* in/out
    , "Ptr", wszContentIdType   ; LPWSTR optional, out
    , "Ptr", puSKUIdLength   ; DWORD* in/out
    , "Ptr", wszSKUId   ; LPWSTR optional, out
    , "Ptr", puSKUIdTypeLength   ; DWORD* in/out
    , "Ptr", wszSKUIdType   ; LPWSTR optional, out
    , "Ptr", puContentTypeLength   ; DWORD* in/out
    , "Ptr", wszContentType   ; LPWSTR optional, out
    , "Ptr", puContentNameLength   ; DWORD* in/out
    , "Ptr", wszContentName   ; LPWSTR optional, out
    , "Int")   ; return: HRESULT

●DRMGetMetaData(hIssuanceLicense, puContentIdLength, wszContentId, puContentIdTypeLength, wszContentIdType, puSKUIdLength, wszSKUId, puSKUIdTypeLength, wszSKUIdType, puContentTypeLength, wszContentType, puContentNameLength, wszContentName) = DLL("msdrm.dll", "int DRMGetMetaData(dword, void*, char*, void*, char*, void*, char*, void*, char*, void*, char*, void*, char*)")
# 呼び出し: DRMGetMetaData(hIssuanceLicense, puContentIdLength, wszContentId, puContentIdTypeLength, wszContentIdType, puSKUIdLength, wszSKUId, puSKUIdTypeLength, wszSKUIdType, puContentTypeLength, wszContentType, puContentNameLength, wszContentName)
# hIssuanceLicense : DWORD -> "dword"
# puContentIdLength : DWORD* in/out -> "void*"
# wszContentId : LPWSTR optional, out -> "char*"
# puContentIdTypeLength : DWORD* in/out -> "void*"
# wszContentIdType : LPWSTR optional, out -> "char*"
# puSKUIdLength : DWORD* in/out -> "void*"
# wszSKUId : LPWSTR optional, out -> "char*"
# puSKUIdTypeLength : DWORD* in/out -> "void*"
# wszSKUIdType : LPWSTR optional, out -> "char*"
# puContentTypeLength : DWORD* in/out -> "void*"
# wszContentType : LPWSTR optional, out -> "char*"
# puContentNameLength : DWORD* in/out -> "void*"
# wszContentName : 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 DRMGetMetaData(
    hIssuanceLicense: u32, // DWORD
    puContentIdLength: [*c]u32, // DWORD* in/out
    wszContentId: [*c]u16, // LPWSTR optional, out
    puContentIdTypeLength: [*c]u32, // DWORD* in/out
    wszContentIdType: [*c]u16, // LPWSTR optional, out
    puSKUIdLength: [*c]u32, // DWORD* in/out
    wszSKUId: [*c]u16, // LPWSTR optional, out
    puSKUIdTypeLength: [*c]u32, // DWORD* in/out
    wszSKUIdType: [*c]u16, // LPWSTR optional, out
    puContentTypeLength: [*c]u32, // DWORD* in/out
    wszContentType: [*c]u16, // LPWSTR optional, out
    puContentNameLength: [*c]u32, // DWORD* in/out
    wszContentName: [*c]u16 // LPWSTR optional, out
) callconv(std.os.windows.WINAPI) i32;

proc DRMGetMetaData(
    hIssuanceLicense: uint32,  # DWORD
    puContentIdLength: ptr uint32,  # DWORD* in/out
    wszContentId: ptr uint16,  # LPWSTR optional, out
    puContentIdTypeLength: ptr uint32,  # DWORD* in/out
    wszContentIdType: ptr uint16,  # LPWSTR optional, out
    puSKUIdLength: ptr uint32,  # DWORD* in/out
    wszSKUId: ptr uint16,  # LPWSTR optional, out
    puSKUIdTypeLength: ptr uint32,  # DWORD* in/out
    wszSKUIdType: ptr uint16,  # LPWSTR optional, out
    puContentTypeLength: ptr uint32,  # DWORD* in/out
    wszContentType: ptr uint16,  # LPWSTR optional, out
    puContentNameLength: ptr uint32,  # DWORD* in/out
    wszContentName: ptr uint16  # LPWSTR optional, out
): int32 {.importc: "DRMGetMetaData", stdcall, dynlib: "msdrm.dll".}

pragma(lib, "msdrm");
extern(Windows)
int DRMGetMetaData(
    uint hIssuanceLicense,   // DWORD
    uint* puContentIdLength,   // DWORD* in/out
    wchar* wszContentId,   // LPWSTR optional, out
    uint* puContentIdTypeLength,   // DWORD* in/out
    wchar* wszContentIdType,   // LPWSTR optional, out
    uint* puSKUIdLength,   // DWORD* in/out
    wchar* wszSKUId,   // LPWSTR optional, out
    uint* puSKUIdTypeLength,   // DWORD* in/out
    wchar* wszSKUIdType,   // LPWSTR optional, out
    uint* puContentTypeLength,   // DWORD* in/out
    wchar* wszContentType,   // LPWSTR optional, out
    uint* puContentNameLength,   // DWORD* in/out
    wchar* wszContentName   // LPWSTR optional, out
);

ccall((:DRMGetMetaData, "msdrm.dll"), stdcall, Int32,
      (UInt32, Ptr{UInt32}, Ptr{UInt16}, Ptr{UInt32}, Ptr{UInt16}, Ptr{UInt32}, Ptr{UInt16}, Ptr{UInt32}, Ptr{UInt16}, Ptr{UInt32}, Ptr{UInt16}, Ptr{UInt32}, Ptr{UInt16}),
      hIssuanceLicense, puContentIdLength, wszContentId, puContentIdTypeLength, wszContentIdType, puSKUIdLength, wszSKUId, puSKUIdTypeLength, wszSKUIdType, puContentTypeLength, wszContentType, puContentNameLength, wszContentName)
# hIssuanceLicense : DWORD -> UInt32
# puContentIdLength : DWORD* in/out -> Ptr{UInt32}
# wszContentId : LPWSTR optional, out -> Ptr{UInt16}
# puContentIdTypeLength : DWORD* in/out -> Ptr{UInt32}
# wszContentIdType : LPWSTR optional, out -> Ptr{UInt16}
# puSKUIdLength : DWORD* in/out -> Ptr{UInt32}
# wszSKUId : LPWSTR optional, out -> Ptr{UInt16}
# puSKUIdTypeLength : DWORD* in/out -> Ptr{UInt32}
# wszSKUIdType : LPWSTR optional, out -> Ptr{UInt16}
# puContentTypeLength : DWORD* in/out -> Ptr{UInt32}
# wszContentType : LPWSTR optional, out -> Ptr{UInt16}
# puContentNameLength : DWORD* in/out -> Ptr{UInt32}
# wszContentName : 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 DRMGetMetaData(
    uint32_t hIssuanceLicense,
    uint32_t* puContentIdLength,
    uint16_t* wszContentId,
    uint32_t* puContentIdTypeLength,
    uint16_t* wszContentIdType,
    uint32_t* puSKUIdLength,
    uint16_t* wszSKUId,
    uint32_t* puSKUIdTypeLength,
    uint16_t* wszSKUIdType,
    uint32_t* puContentTypeLength,
    uint16_t* wszContentType,
    uint32_t* puContentNameLength,
    uint16_t* wszContentName);
]]
local msdrm = ffi.load("msdrm")
-- msdrm.DRMGetMetaData(hIssuanceLicense, puContentIdLength, wszContentId, puContentIdTypeLength, wszContentIdType, puSKUIdLength, wszSKUId, puSKUIdTypeLength, wszSKUIdType, puContentTypeLength, wszContentType, puContentNameLength, wszContentName)
-- hIssuanceLicense : DWORD
-- puContentIdLength : DWORD* in/out
-- wszContentId : LPWSTR optional, out
-- puContentIdTypeLength : DWORD* in/out
-- wszContentIdType : LPWSTR optional, out
-- puSKUIdLength : DWORD* in/out
-- wszSKUId : LPWSTR optional, out
-- puSKUIdTypeLength : DWORD* in/out
-- wszSKUIdType : LPWSTR optional, out
-- puContentTypeLength : DWORD* in/out
-- wszContentType : LPWSTR optional, out
-- puContentNameLength : DWORD* in/out
-- wszContentName : 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 DRMGetMetaData = lib.func('__stdcall', 'DRMGetMetaData', 'int32_t', ['uint32_t', 'uint32_t *', 'uint16_t *', 'uint32_t *', 'uint16_t *', 'uint32_t *', 'uint16_t *', 'uint32_t *', 'uint16_t *', 'uint32_t *', 'uint16_t *', 'uint32_t *', 'uint16_t *']);
// DRMGetMetaData(hIssuanceLicense, puContentIdLength, wszContentId, puContentIdTypeLength, wszContentIdType, puSKUIdLength, wszSKUId, puSKUIdTypeLength, wszSKUIdType, puContentTypeLength, wszContentType, puContentNameLength, wszContentName)
// hIssuanceLicense : DWORD -> 'uint32_t'
// puContentIdLength : DWORD* in/out -> 'uint32_t *'
// wszContentId : LPWSTR optional, out -> 'uint16_t *'
// puContentIdTypeLength : DWORD* in/out -> 'uint32_t *'
// wszContentIdType : LPWSTR optional, out -> 'uint16_t *'
// puSKUIdLength : DWORD* in/out -> 'uint32_t *'
// wszSKUId : LPWSTR optional, out -> 'uint16_t *'
// puSKUIdTypeLength : DWORD* in/out -> 'uint32_t *'
// wszSKUIdType : LPWSTR optional, out -> 'uint16_t *'
// puContentTypeLength : DWORD* in/out -> 'uint32_t *'
// wszContentType : LPWSTR optional, out -> 'uint16_t *'
// puContentNameLength : DWORD* in/out -> 'uint32_t *'
// wszContentName : 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", {
  DRMGetMetaData: { parameters: ["u32", "pointer", "buffer", "pointer", "buffer", "pointer", "buffer", "pointer", "buffer", "pointer", "buffer", "pointer", "buffer"], result: "i32" },
});
// lib.symbols.DRMGetMetaData(hIssuanceLicense, puContentIdLength, wszContentId, puContentIdTypeLength, wszContentIdType, puSKUIdLength, wszSKUId, puSKUIdTypeLength, wszSKUIdType, puContentTypeLength, wszContentType, puContentNameLength, wszContentName)
// hIssuanceLicense : DWORD -> "u32"
// puContentIdLength : DWORD* in/out -> "pointer"
// wszContentId : LPWSTR optional, out -> "buffer"
// puContentIdTypeLength : DWORD* in/out -> "pointer"
// wszContentIdType : LPWSTR optional, out -> "buffer"
// puSKUIdLength : DWORD* in/out -> "pointer"
// wszSKUId : LPWSTR optional, out -> "buffer"
// puSKUIdTypeLength : DWORD* in/out -> "pointer"
// wszSKUIdType : LPWSTR optional, out -> "buffer"
// puContentTypeLength : DWORD* in/out -> "pointer"
// wszContentType : LPWSTR optional, out -> "buffer"
// puContentNameLength : DWORD* in/out -> "pointer"
// wszContentName : 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 DRMGetMetaData(
    uint32_t hIssuanceLicense,
    uint32_t* puContentIdLength,
    uint16_t* wszContentId,
    uint32_t* puContentIdTypeLength,
    uint16_t* wszContentIdType,
    uint32_t* puSKUIdLength,
    uint16_t* wszSKUId,
    uint32_t* puSKUIdTypeLength,
    uint16_t* wszSKUIdType,
    uint32_t* puContentTypeLength,
    uint16_t* wszContentType,
    uint32_t* puContentNameLength,
    uint16_t* wszContentName);
C, "msdrm.dll");
// $ffi->DRMGetMetaData(hIssuanceLicense, puContentIdLength, wszContentId, puContentIdTypeLength, wszContentIdType, puSKUIdLength, wszSKUId, puSKUIdTypeLength, wszSKUIdType, puContentTypeLength, wszContentType, puContentNameLength, wszContentName);
// hIssuanceLicense : DWORD
// puContentIdLength : DWORD* in/out
// wszContentId : LPWSTR optional, out
// puContentIdTypeLength : DWORD* in/out
// wszContentIdType : LPWSTR optional, out
// puSKUIdLength : DWORD* in/out
// wszSKUId : LPWSTR optional, out
// puSKUIdTypeLength : DWORD* in/out
// wszSKUIdType : LPWSTR optional, out
// puContentTypeLength : DWORD* in/out
// wszContentType : LPWSTR optional, out
// puContentNameLength : DWORD* in/out
// wszContentName : 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 DRMGetMetaData(
        int hIssuanceLicense,   // DWORD
        IntByReference puContentIdLength,   // DWORD* in/out
        char[] wszContentId,   // LPWSTR optional, out
        IntByReference puContentIdTypeLength,   // DWORD* in/out
        char[] wszContentIdType,   // LPWSTR optional, out
        IntByReference puSKUIdLength,   // DWORD* in/out
        char[] wszSKUId,   // LPWSTR optional, out
        IntByReference puSKUIdTypeLength,   // DWORD* in/out
        char[] wszSKUIdType,   // LPWSTR optional, out
        IntByReference puContentTypeLength,   // DWORD* in/out
        char[] wszContentType,   // LPWSTR optional, out
        IntByReference puContentNameLength,   // DWORD* in/out
        char[] wszContentName   // LPWSTR optional, out
    );
}

@[Link("msdrm")]
lib Libmsdrm
  fun DRMGetMetaData = DRMGetMetaData(
    hIssuanceLicense : UInt32,   # DWORD
    puContentIdLength : UInt32*,   # DWORD* in/out
    wszContentId : UInt16*,   # LPWSTR optional, out
    puContentIdTypeLength : UInt32*,   # DWORD* in/out
    wszContentIdType : UInt16*,   # LPWSTR optional, out
    puSKUIdLength : UInt32*,   # DWORD* in/out
    wszSKUId : UInt16*,   # LPWSTR optional, out
    puSKUIdTypeLength : UInt32*,   # DWORD* in/out
    wszSKUIdType : UInt16*,   # LPWSTR optional, out
    puContentTypeLength : UInt32*,   # DWORD* in/out
    wszContentType : UInt16*,   # LPWSTR optional, out
    puContentNameLength : UInt32*,   # DWORD* in/out
    wszContentName : 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 DRMGetMetaDataNative = Int32 Function(Uint32, Pointer<Uint32>, Pointer<Utf16>, Pointer<Uint32>, Pointer<Utf16>, Pointer<Uint32>, Pointer<Utf16>, Pointer<Uint32>, Pointer<Utf16>, Pointer<Uint32>, Pointer<Utf16>, Pointer<Uint32>, Pointer<Utf16>);
typedef DRMGetMetaDataDart = int Function(int, Pointer<Uint32>, Pointer<Utf16>, Pointer<Uint32>, Pointer<Utf16>, Pointer<Uint32>, Pointer<Utf16>, Pointer<Uint32>, Pointer<Utf16>, Pointer<Uint32>, Pointer<Utf16>, Pointer<Uint32>, Pointer<Utf16>);
final DRMGetMetaData = DynamicLibrary.open('msdrm.dll')
    .lookupFunction<DRMGetMetaDataNative, DRMGetMetaDataDart>('DRMGetMetaData');
// hIssuanceLicense : DWORD -> Uint32
// puContentIdLength : DWORD* in/out -> Pointer<Uint32>
// wszContentId : LPWSTR optional, out -> Pointer<Utf16>
// puContentIdTypeLength : DWORD* in/out -> Pointer<Uint32>
// wszContentIdType : LPWSTR optional, out -> Pointer<Utf16>
// puSKUIdLength : DWORD* in/out -> Pointer<Uint32>
// wszSKUId : LPWSTR optional, out -> Pointer<Utf16>
// puSKUIdTypeLength : DWORD* in/out -> Pointer<Uint32>
// wszSKUIdType : LPWSTR optional, out -> Pointer<Utf16>
// puContentTypeLength : DWORD* in/out -> Pointer<Uint32>
// wszContentType : LPWSTR optional, out -> Pointer<Utf16>
// puContentNameLength : DWORD* in/out -> Pointer<Uint32>
// wszContentName : LPWSTR optional, out -> Pointer<Utf16>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function DRMGetMetaData(
  hIssuanceLicense: DWORD;   // DWORD
  puContentIdLength: Pointer;   // DWORD* in/out
  wszContentId: PWideChar;   // LPWSTR optional, out
  puContentIdTypeLength: Pointer;   // DWORD* in/out
  wszContentIdType: PWideChar;   // LPWSTR optional, out
  puSKUIdLength: Pointer;   // DWORD* in/out
  wszSKUId: PWideChar;   // LPWSTR optional, out
  puSKUIdTypeLength: Pointer;   // DWORD* in/out
  wszSKUIdType: PWideChar;   // LPWSTR optional, out
  puContentTypeLength: Pointer;   // DWORD* in/out
  wszContentType: PWideChar;   // LPWSTR optional, out
  puContentNameLength: Pointer;   // DWORD* in/out
  wszContentName: PWideChar   // LPWSTR optional, out
): Integer; stdcall;
  external 'msdrm.dll' name 'DRMGetMetaData';

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

foreign import stdcall safe "DRMGetMetaData"
  c_DRMGetMetaData :: Word32 -> Ptr Word32 -> CWString -> Ptr Word32 -> CWString -> Ptr Word32 -> CWString -> Ptr Word32 -> CWString -> Ptr Word32 -> CWString -> Ptr Word32 -> CWString -> IO Int32
-- hIssuanceLicense : DWORD -> Word32
-- puContentIdLength : DWORD* in/out -> Ptr Word32
-- wszContentId : LPWSTR optional, out -> CWString
-- puContentIdTypeLength : DWORD* in/out -> Ptr Word32
-- wszContentIdType : LPWSTR optional, out -> CWString
-- puSKUIdLength : DWORD* in/out -> Ptr Word32
-- wszSKUId : LPWSTR optional, out -> CWString
-- puSKUIdTypeLength : DWORD* in/out -> Ptr Word32
-- wszSKUIdType : LPWSTR optional, out -> CWString
-- puContentTypeLength : DWORD* in/out -> Ptr Word32
-- wszContentType : LPWSTR optional, out -> CWString
-- puContentNameLength : DWORD* in/out -> Ptr Word32
-- wszContentName : 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 drmgetmetadata =
  foreign "DRMGetMetaData"
    (uint32_t @-> (ptr uint32_t) @-> (ptr uint16_t) @-> (ptr uint32_t) @-> (ptr uint16_t) @-> (ptr uint32_t) @-> (ptr uint16_t) @-> (ptr uint32_t) @-> (ptr uint16_t) @-> (ptr uint32_t) @-> (ptr uint16_t) @-> (ptr uint32_t) @-> (ptr uint16_t) @-> returning int32_t)
(* hIssuanceLicense : DWORD -> uint32_t *)
(* puContentIdLength : DWORD* in/out -> (ptr uint32_t) *)
(* wszContentId : LPWSTR optional, out -> (ptr uint16_t) *)
(* puContentIdTypeLength : DWORD* in/out -> (ptr uint32_t) *)
(* wszContentIdType : LPWSTR optional, out -> (ptr uint16_t) *)
(* puSKUIdLength : DWORD* in/out -> (ptr uint32_t) *)
(* wszSKUId : LPWSTR optional, out -> (ptr uint16_t) *)
(* puSKUIdTypeLength : DWORD* in/out -> (ptr uint32_t) *)
(* wszSKUIdType : LPWSTR optional, out -> (ptr uint16_t) *)
(* puContentTypeLength : DWORD* in/out -> (ptr uint32_t) *)
(* wszContentType : LPWSTR optional, out -> (ptr uint16_t) *)
(* puContentNameLength : DWORD* in/out -> (ptr uint32_t) *)
(* wszContentName : 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 ("DRMGetMetaData" drmget-meta-data :convention :stdcall) :int32
  (h-issuance-license :uint32)   ; DWORD
  (pu-content-id-length :pointer)   ; DWORD* in/out
  (wsz-content-id :pointer)   ; LPWSTR optional, out
  (pu-content-id-type-length :pointer)   ; DWORD* in/out
  (wsz-content-id-type :pointer)   ; LPWSTR optional, out
  (pu-skuid-length :pointer)   ; DWORD* in/out
  (wsz-skuid :pointer)   ; LPWSTR optional, out
  (pu-skuid-type-length :pointer)   ; DWORD* in/out
  (wsz-skuid-type :pointer)   ; LPWSTR optional, out
  (pu-content-type-length :pointer)   ; DWORD* in/out
  (wsz-content-type :pointer)   ; LPWSTR optional, out
  (pu-content-name-length :pointer)   ; DWORD* in/out
  (wsz-content-name :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 $DRMGetMetaData = Win32::API::More->new('msdrm',
    'int DRMGetMetaData(DWORD hIssuanceLicense, LPVOID puContentIdLength, LPWSTR wszContentId, LPVOID puContentIdTypeLength, LPWSTR wszContentIdType, LPVOID puSKUIdLength, LPWSTR wszSKUId, LPVOID puSKUIdTypeLength, LPWSTR wszSKUIdType, LPVOID puContentTypeLength, LPWSTR wszContentType, LPVOID puContentNameLength, LPWSTR wszContentName)');
# my $ret = $DRMGetMetaData->Call($hIssuanceLicense, $puContentIdLength, $wszContentId, $puContentIdTypeLength, $wszContentIdType, $puSKUIdLength, $wszSKUId, $puSKUIdTypeLength, $wszSKUIdType, $puContentTypeLength, $wszContentType, $puContentNameLength, $wszContentName);
# hIssuanceLicense : DWORD -> DWORD
# puContentIdLength : DWORD* in/out -> LPVOID
# wszContentId : LPWSTR optional, out -> LPWSTR
# puContentIdTypeLength : DWORD* in/out -> LPVOID
# wszContentIdType : LPWSTR optional, out -> LPWSTR
# puSKUIdLength : DWORD* in/out -> LPVOID
# wszSKUId : LPWSTR optional, out -> LPWSTR
# puSKUIdTypeLength : DWORD* in/out -> LPVOID
# wszSKUIdType : LPWSTR optional, out -> LPWSTR
# puContentTypeLength : DWORD* in/out -> LPVOID
# wszContentType : LPWSTR optional, out -> LPWSTR
# puContentNameLength : DWORD* in/out -> LPVOID
# wszContentName : 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。