DRMSetUsagePolicy

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

HRESULT DRMSetUsagePolicy(
    DWORD hIssuanceLicense,
    DRM_USAGEPOLICY_TYPE eUsagePolicyType,
    BOOL fDelete,
    BOOL fExclusion,
    LPWSTR wszName,   // optional
    LPWSTR wszMinVersion,   // optional
    LPWSTR wszMaxVersion,   // optional
    LPWSTR wszPublicKey,   // optional
    LPWSTR wszDigestAlgorithm,   // optional
    BYTE* pbDigest,
    DWORD cbDigest
);

<DllImport("msdrm.dll", ExactSpelling:=True)>
Public Shared Function DRMSetUsagePolicy(
    hIssuanceLicense As UInteger,   ' DWORD
    eUsagePolicyType As Integer,   ' DRM_USAGEPOLICY_TYPE
    fDelete As Boolean,   ' BOOL
    fExclusion As Boolean,   ' BOOL
    <MarshalAs(UnmanagedType.LPWStr)> wszName As String,   ' LPWSTR optional
    <MarshalAs(UnmanagedType.LPWStr)> wszMinVersion As String,   ' LPWSTR optional
    <MarshalAs(UnmanagedType.LPWStr)> wszMaxVersion As String,   ' LPWSTR optional
    <MarshalAs(UnmanagedType.LPWStr)> wszPublicKey As String,   ' LPWSTR optional
    <MarshalAs(UnmanagedType.LPWStr)> wszDigestAlgorithm As String,   ' LPWSTR optional
    pbDigest As IntPtr,   ' BYTE* in/out
    cbDigest As UInteger   ' DWORD
) As Integer
End Function

' hIssuanceLicense : DWORD
' eUsagePolicyType : DRM_USAGEPOLICY_TYPE
' fDelete : BOOL
' fExclusion : BOOL
' wszName : LPWSTR optional
' wszMinVersion : LPWSTR optional
' wszMaxVersion : LPWSTR optional
' wszPublicKey : LPWSTR optional
' wszDigestAlgorithm : LPWSTR optional
' pbDigest : BYTE* in/out
' cbDigest : DWORD
Declare PtrSafe Function DRMSetUsagePolicy Lib "msdrm" ( _
    ByVal hIssuanceLicense As Long, _
    ByVal eUsagePolicyType As Long, _
    ByVal fDelete As Long, _
    ByVal fExclusion As Long, _
    ByVal wszName As LongPtr, _
    ByVal wszMinVersion As LongPtr, _
    ByVal wszMaxVersion As LongPtr, _
    ByVal wszPublicKey As LongPtr, _
    ByVal wszDigestAlgorithm As LongPtr, _
    ByVal pbDigest As LongPtr, _
    ByVal cbDigest As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

DRMSetUsagePolicy = ctypes.windll.msdrm.DRMSetUsagePolicy
DRMSetUsagePolicy.restype = ctypes.c_int
DRMSetUsagePolicy.argtypes = [
    wintypes.DWORD,  # hIssuanceLicense : DWORD
    ctypes.c_int,  # eUsagePolicyType : DRM_USAGEPOLICY_TYPE
    wintypes.BOOL,  # fDelete : BOOL
    wintypes.BOOL,  # fExclusion : BOOL
    wintypes.LPCWSTR,  # wszName : LPWSTR optional
    wintypes.LPCWSTR,  # wszMinVersion : LPWSTR optional
    wintypes.LPCWSTR,  # wszMaxVersion : LPWSTR optional
    wintypes.LPCWSTR,  # wszPublicKey : LPWSTR optional
    wintypes.LPCWSTR,  # wszDigestAlgorithm : LPWSTR optional
    ctypes.POINTER(ctypes.c_ubyte),  # pbDigest : BYTE* in/out
    wintypes.DWORD,  # cbDigest : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('msdrm.dll')
DRMSetUsagePolicy = Fiddle::Function.new(
  lib['DRMSetUsagePolicy'],
  [
    -Fiddle::TYPE_INT,  # hIssuanceLicense : DWORD
    Fiddle::TYPE_INT,  # eUsagePolicyType : DRM_USAGEPOLICY_TYPE
    Fiddle::TYPE_INT,  # fDelete : BOOL
    Fiddle::TYPE_INT,  # fExclusion : BOOL
    Fiddle::TYPE_VOIDP,  # wszName : LPWSTR optional
    Fiddle::TYPE_VOIDP,  # wszMinVersion : LPWSTR optional
    Fiddle::TYPE_VOIDP,  # wszMaxVersion : LPWSTR optional
    Fiddle::TYPE_VOIDP,  # wszPublicKey : LPWSTR optional
    Fiddle::TYPE_VOIDP,  # wszDigestAlgorithm : LPWSTR optional
    Fiddle::TYPE_VOIDP,  # pbDigest : BYTE* in/out
    -Fiddle::TYPE_INT,  # cbDigest : DWORD
  ],
  Fiddle::TYPE_INT)

#[link(name = "msdrm")]
extern "system" {
    fn DRMSetUsagePolicy(
        hIssuanceLicense: u32,  // DWORD
        eUsagePolicyType: i32,  // DRM_USAGEPOLICY_TYPE
        fDelete: i32,  // BOOL
        fExclusion: i32,  // BOOL
        wszName: *mut u16,  // LPWSTR optional
        wszMinVersion: *mut u16,  // LPWSTR optional
        wszMaxVersion: *mut u16,  // LPWSTR optional
        wszPublicKey: *mut u16,  // LPWSTR optional
        wszDigestAlgorithm: *mut u16,  // LPWSTR optional
        pbDigest: *mut u8,  // BYTE* in/out
        cbDigest: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("msdrm.dll")]
public static extern int DRMSetUsagePolicy(uint hIssuanceLicense, int eUsagePolicyType, bool fDelete, bool fExclusion, [MarshalAs(UnmanagedType.LPWStr)] string wszName, [MarshalAs(UnmanagedType.LPWStr)] string wszMinVersion, [MarshalAs(UnmanagedType.LPWStr)] string wszMaxVersion, [MarshalAs(UnmanagedType.LPWStr)] string wszPublicKey, [MarshalAs(UnmanagedType.LPWStr)] string wszDigestAlgorithm, IntPtr pbDigest, uint cbDigest);
"@
$api = Add-Type -MemberDefinition $sig -Name 'msdrm_DRMSetUsagePolicy' -Namespace Win32 -PassThru
# $api::DRMSetUsagePolicy(hIssuanceLicense, eUsagePolicyType, fDelete, fExclusion, wszName, wszMinVersion, wszMaxVersion, wszPublicKey, wszDigestAlgorithm, pbDigest, cbDigest)

#uselib "msdrm.dll"
#func global DRMSetUsagePolicy "DRMSetUsagePolicy" sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr
; DRMSetUsagePolicy hIssuanceLicense, eUsagePolicyType, fDelete, fExclusion, wszName, wszMinVersion, wszMaxVersion, wszPublicKey, wszDigestAlgorithm, varptr(pbDigest), cbDigest   ; 戻り値は stat
; hIssuanceLicense : DWORD -> "sptr"
; eUsagePolicyType : DRM_USAGEPOLICY_TYPE -> "sptr"
; fDelete : BOOL -> "sptr"
; fExclusion : BOOL -> "sptr"
; wszName : LPWSTR optional -> "sptr"
; wszMinVersion : LPWSTR optional -> "sptr"
; wszMaxVersion : LPWSTR optional -> "sptr"
; wszPublicKey : LPWSTR optional -> "sptr"
; wszDigestAlgorithm : LPWSTR optional -> "sptr"
; pbDigest : BYTE* in/out -> "sptr"
; cbDigest : DWORD -> "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")
	procDRMSetUsagePolicy = msdrm.NewProc("DRMSetUsagePolicy")
)

// hIssuanceLicense (DWORD), eUsagePolicyType (DRM_USAGEPOLICY_TYPE), fDelete (BOOL), fExclusion (BOOL), wszName (LPWSTR optional), wszMinVersion (LPWSTR optional), wszMaxVersion (LPWSTR optional), wszPublicKey (LPWSTR optional), wszDigestAlgorithm (LPWSTR optional), pbDigest (BYTE* in/out), cbDigest (DWORD)
r1, _, err := procDRMSetUsagePolicy.Call(
	uintptr(hIssuanceLicense),
	uintptr(eUsagePolicyType),
	uintptr(fDelete),
	uintptr(fExclusion),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(wszName))),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(wszMinVersion))),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(wszMaxVersion))),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(wszPublicKey))),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(wszDigestAlgorithm))),
	uintptr(pbDigest),
	uintptr(cbDigest),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function DRMSetUsagePolicy(
  hIssuanceLicense: DWORD;   // DWORD
  eUsagePolicyType: Integer;   // DRM_USAGEPOLICY_TYPE
  fDelete: BOOL;   // BOOL
  fExclusion: BOOL;   // BOOL
  wszName: PWideChar;   // LPWSTR optional
  wszMinVersion: PWideChar;   // LPWSTR optional
  wszMaxVersion: PWideChar;   // LPWSTR optional
  wszPublicKey: PWideChar;   // LPWSTR optional
  wszDigestAlgorithm: PWideChar;   // LPWSTR optional
  pbDigest: Pointer;   // BYTE* in/out
  cbDigest: DWORD   // DWORD
): Integer; stdcall;
  external 'msdrm.dll' name 'DRMSetUsagePolicy';

result := DllCall("msdrm\DRMSetUsagePolicy"
    , "UInt", hIssuanceLicense   ; DWORD
    , "Int", eUsagePolicyType   ; DRM_USAGEPOLICY_TYPE
    , "Int", fDelete   ; BOOL
    , "Int", fExclusion   ; BOOL
    , "WStr", wszName   ; LPWSTR optional
    , "WStr", wszMinVersion   ; LPWSTR optional
    , "WStr", wszMaxVersion   ; LPWSTR optional
    , "WStr", wszPublicKey   ; LPWSTR optional
    , "WStr", wszDigestAlgorithm   ; LPWSTR optional
    , "Ptr", pbDigest   ; BYTE* in/out
    , "UInt", cbDigest   ; DWORD
    , "Int")   ; return: HRESULT

●DRMSetUsagePolicy(hIssuanceLicense, eUsagePolicyType, fDelete, fExclusion, wszName, wszMinVersion, wszMaxVersion, wszPublicKey, wszDigestAlgorithm, pbDigest, cbDigest) = DLL("msdrm.dll", "int DRMSetUsagePolicy(dword, int, bool, bool, char*, char*, char*, char*, char*, void*, dword)")
# 呼び出し: DRMSetUsagePolicy(hIssuanceLicense, eUsagePolicyType, fDelete, fExclusion, wszName, wszMinVersion, wszMaxVersion, wszPublicKey, wszDigestAlgorithm, pbDigest, cbDigest)
# hIssuanceLicense : DWORD -> "dword"
# eUsagePolicyType : DRM_USAGEPOLICY_TYPE -> "int"
# fDelete : BOOL -> "bool"
# fExclusion : BOOL -> "bool"
# wszName : LPWSTR optional -> "char*"
# wszMinVersion : LPWSTR optional -> "char*"
# wszMaxVersion : LPWSTR optional -> "char*"
# wszPublicKey : LPWSTR optional -> "char*"
# wszDigestAlgorithm : LPWSTR optional -> "char*"
# pbDigest : BYTE* in/out -> "void*"
# cbDigest : DWORD -> "dword"
# 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 DRMSetUsagePolicy(
    hIssuanceLicense: u32, // DWORD
    eUsagePolicyType: i32, // DRM_USAGEPOLICY_TYPE
    fDelete: i32, // BOOL
    fExclusion: i32, // BOOL
    wszName: [*c]const u16, // LPWSTR optional
    wszMinVersion: [*c]const u16, // LPWSTR optional
    wszMaxVersion: [*c]const u16, // LPWSTR optional
    wszPublicKey: [*c]const u16, // LPWSTR optional
    wszDigestAlgorithm: [*c]const u16, // LPWSTR optional
    pbDigest: [*c]u8, // BYTE* in/out
    cbDigest: u32 // DWORD
) callconv(std.os.windows.WINAPI) i32;

proc DRMSetUsagePolicy(
    hIssuanceLicense: uint32,  # DWORD
    eUsagePolicyType: int32,  # DRM_USAGEPOLICY_TYPE
    fDelete: int32,  # BOOL
    fExclusion: int32,  # BOOL
    wszName: WideCString,  # LPWSTR optional
    wszMinVersion: WideCString,  # LPWSTR optional
    wszMaxVersion: WideCString,  # LPWSTR optional
    wszPublicKey: WideCString,  # LPWSTR optional
    wszDigestAlgorithm: WideCString,  # LPWSTR optional
    pbDigest: ptr uint8,  # BYTE* in/out
    cbDigest: uint32  # DWORD
): int32 {.importc: "DRMSetUsagePolicy", stdcall, dynlib: "msdrm.dll".}

pragma(lib, "msdrm");
extern(Windows)
int DRMSetUsagePolicy(
    uint hIssuanceLicense,   // DWORD
    int eUsagePolicyType,   // DRM_USAGEPOLICY_TYPE
    int fDelete,   // BOOL
    int fExclusion,   // BOOL
    const(wchar)* wszName,   // LPWSTR optional
    const(wchar)* wszMinVersion,   // LPWSTR optional
    const(wchar)* wszMaxVersion,   // LPWSTR optional
    const(wchar)* wszPublicKey,   // LPWSTR optional
    const(wchar)* wszDigestAlgorithm,   // LPWSTR optional
    ubyte* pbDigest,   // BYTE* in/out
    uint cbDigest   // DWORD
);

ccall((:DRMSetUsagePolicy, "msdrm.dll"), stdcall, Int32,
      (UInt32, Int32, Int32, Int32, Cwstring, Cwstring, Cwstring, Cwstring, Cwstring, Ptr{UInt8}, UInt32),
      hIssuanceLicense, eUsagePolicyType, fDelete, fExclusion, wszName, wszMinVersion, wszMaxVersion, wszPublicKey, wszDigestAlgorithm, pbDigest, cbDigest)
# hIssuanceLicense : DWORD -> UInt32
# eUsagePolicyType : DRM_USAGEPOLICY_TYPE -> Int32
# fDelete : BOOL -> Int32
# fExclusion : BOOL -> Int32
# wszName : LPWSTR optional -> Cwstring
# wszMinVersion : LPWSTR optional -> Cwstring
# wszMaxVersion : LPWSTR optional -> Cwstring
# wszPublicKey : LPWSTR optional -> Cwstring
# wszDigestAlgorithm : LPWSTR optional -> Cwstring
# pbDigest : BYTE* in/out -> Ptr{UInt8}
# cbDigest : DWORD -> UInt32
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t DRMSetUsagePolicy(
    uint32_t hIssuanceLicense,
    int32_t eUsagePolicyType,
    int32_t fDelete,
    int32_t fExclusion,
    const uint16_t* wszName,
    const uint16_t* wszMinVersion,
    const uint16_t* wszMaxVersion,
    const uint16_t* wszPublicKey,
    const uint16_t* wszDigestAlgorithm,
    uint8_t* pbDigest,
    uint32_t cbDigest);
]]
local msdrm = ffi.load("msdrm")
-- msdrm.DRMSetUsagePolicy(hIssuanceLicense, eUsagePolicyType, fDelete, fExclusion, wszName, wszMinVersion, wszMaxVersion, wszPublicKey, wszDigestAlgorithm, pbDigest, cbDigest)
-- hIssuanceLicense : DWORD
-- eUsagePolicyType : DRM_USAGEPOLICY_TYPE
-- fDelete : BOOL
-- fExclusion : BOOL
-- wszName : LPWSTR optional
-- wszMinVersion : LPWSTR optional
-- wszMaxVersion : LPWSTR optional
-- wszPublicKey : LPWSTR optional
-- wszDigestAlgorithm : LPWSTR optional
-- pbDigest : BYTE* in/out
-- cbDigest : DWORD
-- 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 DRMSetUsagePolicy = lib.func('__stdcall', 'DRMSetUsagePolicy', 'int32_t', ['uint32_t', 'int32_t', 'int32_t', 'int32_t', 'str16', 'str16', 'str16', 'str16', 'str16', 'uint8_t *', 'uint32_t']);
// DRMSetUsagePolicy(hIssuanceLicense, eUsagePolicyType, fDelete, fExclusion, wszName, wszMinVersion, wszMaxVersion, wszPublicKey, wszDigestAlgorithm, pbDigest, cbDigest)
// hIssuanceLicense : DWORD -> 'uint32_t'
// eUsagePolicyType : DRM_USAGEPOLICY_TYPE -> 'int32_t'
// fDelete : BOOL -> 'int32_t'
// fExclusion : BOOL -> 'int32_t'
// wszName : LPWSTR optional -> 'str16'
// wszMinVersion : LPWSTR optional -> 'str16'
// wszMaxVersion : LPWSTR optional -> 'str16'
// wszPublicKey : LPWSTR optional -> 'str16'
// wszDigestAlgorithm : LPWSTR optional -> 'str16'
// pbDigest : BYTE* in/out -> 'uint8_t *'
// cbDigest : DWORD -> 'uint32_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", {
  DRMSetUsagePolicy: { parameters: ["u32", "i32", "i32", "i32", "buffer", "buffer", "buffer", "buffer", "buffer", "pointer", "u32"], result: "i32" },
});
// lib.symbols.DRMSetUsagePolicy(hIssuanceLicense, eUsagePolicyType, fDelete, fExclusion, wszName, wszMinVersion, wszMaxVersion, wszPublicKey, wszDigestAlgorithm, pbDigest, cbDigest)
// hIssuanceLicense : DWORD -> "u32"
// eUsagePolicyType : DRM_USAGEPOLICY_TYPE -> "i32"
// fDelete : BOOL -> "i32"
// fExclusion : BOOL -> "i32"
// wszName : LPWSTR optional -> "buffer"
// wszMinVersion : LPWSTR optional -> "buffer"
// wszMaxVersion : LPWSTR optional -> "buffer"
// wszPublicKey : LPWSTR optional -> "buffer"
// wszDigestAlgorithm : LPWSTR optional -> "buffer"
// pbDigest : BYTE* in/out -> "pointer"
// cbDigest : DWORD -> "u32"
// 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 DRMSetUsagePolicy(
    uint32_t hIssuanceLicense,
    int32_t eUsagePolicyType,
    int32_t fDelete,
    int32_t fExclusion,
    const uint16_t* wszName,
    const uint16_t* wszMinVersion,
    const uint16_t* wszMaxVersion,
    const uint16_t* wszPublicKey,
    const uint16_t* wszDigestAlgorithm,
    uint8_t* pbDigest,
    uint32_t cbDigest);
C, "msdrm.dll");
// $ffi->DRMSetUsagePolicy(hIssuanceLicense, eUsagePolicyType, fDelete, fExclusion, wszName, wszMinVersion, wszMaxVersion, wszPublicKey, wszDigestAlgorithm, pbDigest, cbDigest);
// hIssuanceLicense : DWORD
// eUsagePolicyType : DRM_USAGEPOLICY_TYPE
// fDelete : BOOL
// fExclusion : BOOL
// wszName : LPWSTR optional
// wszMinVersion : LPWSTR optional
// wszMaxVersion : LPWSTR optional
// wszPublicKey : LPWSTR optional
// wszDigestAlgorithm : LPWSTR optional
// pbDigest : BYTE* in/out
// cbDigest : DWORD
// 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 DRMSetUsagePolicy(
        int hIssuanceLicense,   // DWORD
        int eUsagePolicyType,   // DRM_USAGEPOLICY_TYPE
        boolean fDelete,   // BOOL
        boolean fExclusion,   // BOOL
        WString wszName,   // LPWSTR optional
        WString wszMinVersion,   // LPWSTR optional
        WString wszMaxVersion,   // LPWSTR optional
        WString wszPublicKey,   // LPWSTR optional
        WString wszDigestAlgorithm,   // LPWSTR optional
        byte[] pbDigest,   // BYTE* in/out
        int cbDigest   // DWORD
    );
}

@[Link("msdrm")]
lib Libmsdrm
  fun DRMSetUsagePolicy = DRMSetUsagePolicy(
    hIssuanceLicense : UInt32,   # DWORD
    eUsagePolicyType : Int32,   # DRM_USAGEPOLICY_TYPE
    fDelete : Int32,   # BOOL
    fExclusion : Int32,   # BOOL
    wszName : UInt16*,   # LPWSTR optional
    wszMinVersion : UInt16*,   # LPWSTR optional
    wszMaxVersion : UInt16*,   # LPWSTR optional
    wszPublicKey : UInt16*,   # LPWSTR optional
    wszDigestAlgorithm : UInt16*,   # LPWSTR optional
    pbDigest : UInt8*,   # BYTE* in/out
    cbDigest : UInt32   # DWORD
  ) : 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 DRMSetUsagePolicyNative = Int32 Function(Uint32, Int32, Int32, Int32, Pointer<Utf16>, Pointer<Utf16>, Pointer<Utf16>, Pointer<Utf16>, Pointer<Utf16>, Pointer<Uint8>, Uint32);
typedef DRMSetUsagePolicyDart = int Function(int, int, int, int, Pointer<Utf16>, Pointer<Utf16>, Pointer<Utf16>, Pointer<Utf16>, Pointer<Utf16>, Pointer<Uint8>, int);
final DRMSetUsagePolicy = DynamicLibrary.open('msdrm.dll')
    .lookupFunction<DRMSetUsagePolicyNative, DRMSetUsagePolicyDart>('DRMSetUsagePolicy');
// hIssuanceLicense : DWORD -> Uint32
// eUsagePolicyType : DRM_USAGEPOLICY_TYPE -> Int32
// fDelete : BOOL -> Int32
// fExclusion : BOOL -> Int32
// wszName : LPWSTR optional -> Pointer<Utf16>
// wszMinVersion : LPWSTR optional -> Pointer<Utf16>
// wszMaxVersion : LPWSTR optional -> Pointer<Utf16>
// wszPublicKey : LPWSTR optional -> Pointer<Utf16>
// wszDigestAlgorithm : LPWSTR optional -> Pointer<Utf16>
// pbDigest : BYTE* in/out -> Pointer<Uint8>
// cbDigest : DWORD -> Uint32
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function DRMSetUsagePolicy(
  hIssuanceLicense: DWORD;   // DWORD
  eUsagePolicyType: Integer;   // DRM_USAGEPOLICY_TYPE
  fDelete: BOOL;   // BOOL
  fExclusion: BOOL;   // BOOL
  wszName: PWideChar;   // LPWSTR optional
  wszMinVersion: PWideChar;   // LPWSTR optional
  wszMaxVersion: PWideChar;   // LPWSTR optional
  wszPublicKey: PWideChar;   // LPWSTR optional
  wszDigestAlgorithm: PWideChar;   // LPWSTR optional
  pbDigest: Pointer;   // BYTE* in/out
  cbDigest: DWORD   // DWORD
): Integer; stdcall;
  external 'msdrm.dll' name 'DRMSetUsagePolicy';

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

foreign import stdcall safe "DRMSetUsagePolicy"
  c_DRMSetUsagePolicy :: Word32 -> Int32 -> CInt -> CInt -> CWString -> CWString -> CWString -> CWString -> CWString -> Ptr Word8 -> Word32 -> IO Int32
-- hIssuanceLicense : DWORD -> Word32
-- eUsagePolicyType : DRM_USAGEPOLICY_TYPE -> Int32
-- fDelete : BOOL -> CInt
-- fExclusion : BOOL -> CInt
-- wszName : LPWSTR optional -> CWString
-- wszMinVersion : LPWSTR optional -> CWString
-- wszMaxVersion : LPWSTR optional -> CWString
-- wszPublicKey : LPWSTR optional -> CWString
-- wszDigestAlgorithm : LPWSTR optional -> CWString
-- pbDigest : BYTE* in/out -> Ptr Word8
-- cbDigest : DWORD -> Word32
-- 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 drmsetusagepolicy =
  foreign "DRMSetUsagePolicy"
    (uint32_t @-> int32_t @-> int32_t @-> int32_t @-> (ptr uint16_t) @-> (ptr uint16_t) @-> (ptr uint16_t) @-> (ptr uint16_t) @-> (ptr uint16_t) @-> (ptr uint8_t) @-> uint32_t @-> returning int32_t)
(* hIssuanceLicense : DWORD -> uint32_t *)
(* eUsagePolicyType : DRM_USAGEPOLICY_TYPE -> int32_t *)
(* fDelete : BOOL -> int32_t *)
(* fExclusion : BOOL -> int32_t *)
(* wszName : LPWSTR optional -> (ptr uint16_t) *)
(* wszMinVersion : LPWSTR optional -> (ptr uint16_t) *)
(* wszMaxVersion : LPWSTR optional -> (ptr uint16_t) *)
(* wszPublicKey : LPWSTR optional -> (ptr uint16_t) *)
(* wszDigestAlgorithm : LPWSTR optional -> (ptr uint16_t) *)
(* pbDigest : BYTE* in/out -> (ptr uint8_t) *)
(* cbDigest : DWORD -> uint32_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 ("DRMSetUsagePolicy" drmset-usage-policy :convention :stdcall) :int32
  (h-issuance-license :uint32)   ; DWORD
  (e-usage-policy-type :int32)   ; DRM_USAGEPOLICY_TYPE
  (f-delete :int32)   ; BOOL
  (f-exclusion :int32)   ; BOOL
  (wsz-name (:string :encoding :utf-16le))   ; LPWSTR optional
  (wsz-min-version (:string :encoding :utf-16le))   ; LPWSTR optional
  (wsz-max-version (:string :encoding :utf-16le))   ; LPWSTR optional
  (wsz-public-key (:string :encoding :utf-16le))   ; LPWSTR optional
  (wsz-digest-algorithm (:string :encoding :utf-16le))   ; LPWSTR optional
  (pb-digest :pointer)   ; BYTE* in/out
  (cb-digest :uint32))   ; DWORD
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $DRMSetUsagePolicy = Win32::API::More->new('msdrm',
    'int DRMSetUsagePolicy(DWORD hIssuanceLicense, int eUsagePolicyType, BOOL fDelete, BOOL fExclusion, LPCWSTR wszName, LPCWSTR wszMinVersion, LPCWSTR wszMaxVersion, LPCWSTR wszPublicKey, LPCWSTR wszDigestAlgorithm, LPVOID pbDigest, DWORD cbDigest)');
# my $ret = $DRMSetUsagePolicy->Call($hIssuanceLicense, $eUsagePolicyType, $fDelete, $fExclusion, $wszName, $wszMinVersion, $wszMaxVersion, $wszPublicKey, $wszDigestAlgorithm, $pbDigest, $cbDigest);
# hIssuanceLicense : DWORD -> DWORD
# eUsagePolicyType : DRM_USAGEPOLICY_TYPE -> int
# fDelete : BOOL -> BOOL
# fExclusion : BOOL -> BOOL
# wszName : LPWSTR optional -> LPCWSTR
# wszMinVersion : LPWSTR optional -> LPCWSTR
# wszMaxVersion : LPWSTR optional -> LPCWSTR
# wszPublicKey : LPWSTR optional -> LPCWSTR
# wszDigestAlgorithm : LPWSTR optional -> LPCWSTR
# pbDigest : BYTE* in/out -> LPVOID
# cbDigest : DWORD -> DWORD
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。