DRMGetEnvironmentInfo

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

HRESULT DRMGetEnvironmentInfo(
    DWORD handle,
    LPWSTR wszAttribute,   // optional
    DRMENCODINGTYPE* peEncoding,
    DWORD* pcBuffer,
    BYTE* pbBuffer
);

<DllImport("msdrm.dll", ExactSpelling:=True)>
Public Shared Function DRMGetEnvironmentInfo(
    handle As UInteger,   ' DWORD
    <MarshalAs(UnmanagedType.LPWStr)> wszAttribute As String,   ' LPWSTR optional
    ByRef peEncoding As Integer,   ' DRMENCODINGTYPE* in/out
    ByRef pcBuffer As UInteger,   ' DWORD* in/out
    pbBuffer As IntPtr   ' BYTE* in/out
) As Integer
End Function

' handle : DWORD
' wszAttribute : LPWSTR optional
' peEncoding : DRMENCODINGTYPE* in/out
' pcBuffer : DWORD* in/out
' pbBuffer : BYTE* in/out
Declare PtrSafe Function DRMGetEnvironmentInfo Lib "msdrm" ( _
    ByVal handle As Long, _
    ByVal wszAttribute As LongPtr, _
    ByRef peEncoding As Long, _
    ByRef pcBuffer As Long, _
    ByVal pbBuffer 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

DRMGetEnvironmentInfo = ctypes.windll.msdrm.DRMGetEnvironmentInfo
DRMGetEnvironmentInfo.restype = ctypes.c_int
DRMGetEnvironmentInfo.argtypes = [
    wintypes.DWORD,  # handle : DWORD
    wintypes.LPCWSTR,  # wszAttribute : LPWSTR optional
    ctypes.c_void_p,  # peEncoding : DRMENCODINGTYPE* in/out
    ctypes.POINTER(wintypes.DWORD),  # pcBuffer : DWORD* in/out
    ctypes.POINTER(ctypes.c_ubyte),  # pbBuffer : BYTE* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('msdrm.dll')
DRMGetEnvironmentInfo = Fiddle::Function.new(
  lib['DRMGetEnvironmentInfo'],
  [
    -Fiddle::TYPE_INT,  # handle : DWORD
    Fiddle::TYPE_VOIDP,  # wszAttribute : LPWSTR optional
    Fiddle::TYPE_VOIDP,  # peEncoding : DRMENCODINGTYPE* in/out
    Fiddle::TYPE_VOIDP,  # pcBuffer : DWORD* in/out
    Fiddle::TYPE_VOIDP,  # pbBuffer : BYTE* in/out
  ],
  Fiddle::TYPE_INT)

#[link(name = "msdrm")]
extern "system" {
    fn DRMGetEnvironmentInfo(
        handle: u32,  // DWORD
        wszAttribute: *mut u16,  // LPWSTR optional
        peEncoding: *mut i32,  // DRMENCODINGTYPE* in/out
        pcBuffer: *mut u32,  // DWORD* in/out
        pbBuffer: *mut u8  // BYTE* in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("msdrm.dll")]
public static extern int DRMGetEnvironmentInfo(uint handle, [MarshalAs(UnmanagedType.LPWStr)] string wszAttribute, ref int peEncoding, ref uint pcBuffer, IntPtr pbBuffer);
"@
$api = Add-Type -MemberDefinition $sig -Name 'msdrm_DRMGetEnvironmentInfo' -Namespace Win32 -PassThru
# $api::DRMGetEnvironmentInfo(handle, wszAttribute, peEncoding, pcBuffer, pbBuffer)

#uselib "msdrm.dll"
#func global DRMGetEnvironmentInfo "DRMGetEnvironmentInfo" sptr, sptr, sptr, sptr, sptr
; DRMGetEnvironmentInfo handle, wszAttribute, varptr(peEncoding), varptr(pcBuffer), varptr(pbBuffer)   ; 戻り値は stat
; handle : DWORD -> "sptr"
; wszAttribute : LPWSTR optional -> "sptr"
; peEncoding : DRMENCODINGTYPE* in/out -> "sptr"
; pcBuffer : DWORD* in/out -> "sptr"
; pbBuffer : BYTE* in/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")
	procDRMGetEnvironmentInfo = msdrm.NewProc("DRMGetEnvironmentInfo")
)

// handle (DWORD), wszAttribute (LPWSTR optional), peEncoding (DRMENCODINGTYPE* in/out), pcBuffer (DWORD* in/out), pbBuffer (BYTE* in/out)
r1, _, err := procDRMGetEnvironmentInfo.Call(
	uintptr(handle),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(wszAttribute))),
	uintptr(peEncoding),
	uintptr(pcBuffer),
	uintptr(pbBuffer),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function DRMGetEnvironmentInfo(
  handle: DWORD;   // DWORD
  wszAttribute: PWideChar;   // LPWSTR optional
  peEncoding: Pointer;   // DRMENCODINGTYPE* in/out
  pcBuffer: Pointer;   // DWORD* in/out
  pbBuffer: Pointer   // BYTE* in/out
): Integer; stdcall;
  external 'msdrm.dll' name 'DRMGetEnvironmentInfo';

result := DllCall("msdrm\DRMGetEnvironmentInfo"
    , "UInt", handle   ; DWORD
    , "WStr", wszAttribute   ; LPWSTR optional
    , "Ptr", peEncoding   ; DRMENCODINGTYPE* in/out
    , "Ptr", pcBuffer   ; DWORD* in/out
    , "Ptr", pbBuffer   ; BYTE* in/out
    , "Int")   ; return: HRESULT

●DRMGetEnvironmentInfo(handle, wszAttribute, peEncoding, pcBuffer, pbBuffer) = DLL("msdrm.dll", "int DRMGetEnvironmentInfo(dword, char*, void*, void*, void*)")
# 呼び出し: DRMGetEnvironmentInfo(handle, wszAttribute, peEncoding, pcBuffer, pbBuffer)
# handle : DWORD -> "dword"
# wszAttribute : LPWSTR optional -> "char*"
# peEncoding : DRMENCODINGTYPE* in/out -> "void*"
# pcBuffer : DWORD* in/out -> "void*"
# pbBuffer : BYTE* in/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 "msdrm" fn DRMGetEnvironmentInfo(
    handle: u32, // DWORD
    wszAttribute: [*c]const u16, // LPWSTR optional
    peEncoding: [*c]i32, // DRMENCODINGTYPE* in/out
    pcBuffer: [*c]u32, // DWORD* in/out
    pbBuffer: [*c]u8 // BYTE* in/out
) callconv(std.os.windows.WINAPI) i32;

proc DRMGetEnvironmentInfo(
    handle: uint32,  # DWORD
    wszAttribute: WideCString,  # LPWSTR optional
    peEncoding: ptr int32,  # DRMENCODINGTYPE* in/out
    pcBuffer: ptr uint32,  # DWORD* in/out
    pbBuffer: ptr uint8  # BYTE* in/out
): int32 {.importc: "DRMGetEnvironmentInfo", stdcall, dynlib: "msdrm.dll".}

pragma(lib, "msdrm");
extern(Windows)
int DRMGetEnvironmentInfo(
    uint handle,   // DWORD
    const(wchar)* wszAttribute,   // LPWSTR optional
    int* peEncoding,   // DRMENCODINGTYPE* in/out
    uint* pcBuffer,   // DWORD* in/out
    ubyte* pbBuffer   // BYTE* in/out
);

ccall((:DRMGetEnvironmentInfo, "msdrm.dll"), stdcall, Int32,
      (UInt32, Cwstring, Ptr{Int32}, Ptr{UInt32}, Ptr{UInt8}),
      handle, wszAttribute, peEncoding, pcBuffer, pbBuffer)
# handle : DWORD -> UInt32
# wszAttribute : LPWSTR optional -> Cwstring
# peEncoding : DRMENCODINGTYPE* in/out -> Ptr{Int32}
# pcBuffer : DWORD* in/out -> Ptr{UInt32}
# pbBuffer : BYTE* in/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 DRMGetEnvironmentInfo(
    uint32_t handle,
    const uint16_t* wszAttribute,
    int32_t* peEncoding,
    uint32_t* pcBuffer,
    uint8_t* pbBuffer);
]]
local msdrm = ffi.load("msdrm")
-- msdrm.DRMGetEnvironmentInfo(handle, wszAttribute, peEncoding, pcBuffer, pbBuffer)
-- handle : DWORD
-- wszAttribute : LPWSTR optional
-- peEncoding : DRMENCODINGTYPE* in/out
-- pcBuffer : DWORD* in/out
-- pbBuffer : BYTE* in/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 DRMGetEnvironmentInfo = lib.func('__stdcall', 'DRMGetEnvironmentInfo', 'int32_t', ['uint32_t', 'str16', 'int32_t *', 'uint32_t *', 'uint8_t *']);
// DRMGetEnvironmentInfo(handle, wszAttribute, peEncoding, pcBuffer, pbBuffer)
// handle : DWORD -> 'uint32_t'
// wszAttribute : LPWSTR optional -> 'str16'
// peEncoding : DRMENCODINGTYPE* in/out -> 'int32_t *'
// pcBuffer : DWORD* in/out -> 'uint32_t *'
// pbBuffer : BYTE* in/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("msdrm.dll", {
  DRMGetEnvironmentInfo: { parameters: ["u32", "buffer", "pointer", "pointer", "pointer"], result: "i32" },
});
// lib.symbols.DRMGetEnvironmentInfo(handle, wszAttribute, peEncoding, pcBuffer, pbBuffer)
// handle : DWORD -> "u32"
// wszAttribute : LPWSTR optional -> "buffer"
// peEncoding : DRMENCODINGTYPE* in/out -> "pointer"
// pcBuffer : DWORD* in/out -> "pointer"
// pbBuffer : BYTE* in/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 DRMGetEnvironmentInfo(
    uint32_t handle,
    const uint16_t* wszAttribute,
    int32_t* peEncoding,
    uint32_t* pcBuffer,
    uint8_t* pbBuffer);
C, "msdrm.dll");
// $ffi->DRMGetEnvironmentInfo(handle, wszAttribute, peEncoding, pcBuffer, pbBuffer);
// handle : DWORD
// wszAttribute : LPWSTR optional
// peEncoding : DRMENCODINGTYPE* in/out
// pcBuffer : DWORD* in/out
// pbBuffer : BYTE* in/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 DRMGetEnvironmentInfo(
        int handle,   // DWORD
        WString wszAttribute,   // LPWSTR optional
        IntByReference peEncoding,   // DRMENCODINGTYPE* in/out
        IntByReference pcBuffer,   // DWORD* in/out
        byte[] pbBuffer   // BYTE* in/out
    );
}

@[Link("msdrm")]
lib Libmsdrm
  fun DRMGetEnvironmentInfo = DRMGetEnvironmentInfo(
    handle : UInt32,   # DWORD
    wszAttribute : UInt16*,   # LPWSTR optional
    peEncoding : Int32*,   # DRMENCODINGTYPE* in/out
    pcBuffer : UInt32*,   # DWORD* in/out
    pbBuffer : UInt8*   # BYTE* in/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 DRMGetEnvironmentInfoNative = Int32 Function(Uint32, Pointer<Utf16>, Pointer<Int32>, Pointer<Uint32>, Pointer<Uint8>);
typedef DRMGetEnvironmentInfoDart = int Function(int, Pointer<Utf16>, Pointer<Int32>, Pointer<Uint32>, Pointer<Uint8>);
final DRMGetEnvironmentInfo = DynamicLibrary.open('msdrm.dll')
    .lookupFunction<DRMGetEnvironmentInfoNative, DRMGetEnvironmentInfoDart>('DRMGetEnvironmentInfo');
// handle : DWORD -> Uint32
// wszAttribute : LPWSTR optional -> Pointer<Utf16>
// peEncoding : DRMENCODINGTYPE* in/out -> Pointer<Int32>
// pcBuffer : DWORD* in/out -> Pointer<Uint32>
// pbBuffer : BYTE* in/out -> Pointer<Uint8>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function DRMGetEnvironmentInfo(
  handle: DWORD;   // DWORD
  wszAttribute: PWideChar;   // LPWSTR optional
  peEncoding: Pointer;   // DRMENCODINGTYPE* in/out
  pcBuffer: Pointer;   // DWORD* in/out
  pbBuffer: Pointer   // BYTE* in/out
): Integer; stdcall;
  external 'msdrm.dll' name 'DRMGetEnvironmentInfo';

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

foreign import stdcall safe "DRMGetEnvironmentInfo"
  c_DRMGetEnvironmentInfo :: Word32 -> CWString -> Ptr Int32 -> Ptr Word32 -> Ptr Word8 -> IO Int32
-- handle : DWORD -> Word32
-- wszAttribute : LPWSTR optional -> CWString
-- peEncoding : DRMENCODINGTYPE* in/out -> Ptr Int32
-- pcBuffer : DWORD* in/out -> Ptr Word32
-- pbBuffer : BYTE* in/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 drmgetenvironmentinfo =
  foreign "DRMGetEnvironmentInfo"
    (uint32_t @-> (ptr uint16_t) @-> (ptr int32_t) @-> (ptr uint32_t) @-> (ptr uint8_t) @-> returning int32_t)
(* handle : DWORD -> uint32_t *)
(* wszAttribute : LPWSTR optional -> (ptr uint16_t) *)
(* peEncoding : DRMENCODINGTYPE* in/out -> (ptr int32_t) *)
(* pcBuffer : DWORD* in/out -> (ptr uint32_t) *)
(* pbBuffer : BYTE* in/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 msdrm (t "msdrm.dll"))
(cffi:use-foreign-library msdrm)

(cffi:defcfun ("DRMGetEnvironmentInfo" drmget-environment-info :convention :stdcall) :int32
  (handle :uint32)   ; DWORD
  (wsz-attribute (:string :encoding :utf-16le))   ; LPWSTR optional
  (pe-encoding :pointer)   ; DRMENCODINGTYPE* in/out
  (pc-buffer :pointer)   ; DWORD* in/out
  (pb-buffer :pointer))   ; BYTE* in/out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $DRMGetEnvironmentInfo = Win32::API::More->new('msdrm',
    'int DRMGetEnvironmentInfo(DWORD handle, LPCWSTR wszAttribute, LPVOID peEncoding, LPVOID pcBuffer, LPVOID pbBuffer)');
# my $ret = $DRMGetEnvironmentInfo->Call($handle, $wszAttribute, $peEncoding, $pcBuffer, $pbBuffer);
# handle : DWORD -> DWORD
# wszAttribute : LPWSTR optional -> LPCWSTR
# peEncoding : DRMENCODINGTYPE* in/out -> LPVOID
# pcBuffer : DWORD* in/out -> LPVOID
# pbBuffer : BYTE* in/out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。