CryptRetrieveTimeStamp

// CRYPT32.dll
#include <windows.h>

BOOL CryptRetrieveTimeStamp(
    LPCWSTR wszUrl,
    DWORD dwRetrievalFlags,
    DWORD dwTimeout,
    LPCSTR pszHashId,
    const CRYPT_TIMESTAMP_PARA* pPara,   // optional
    const BYTE* pbData,
    DWORD cbData,
    CRYPT_TIMESTAMP_CONTEXT** ppTsContext,
    CERT_CONTEXT** ppTsSigner,
    HCERTSTORE* phStore   // optional
);

<DllImport("CRYPT32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function CryptRetrieveTimeStamp(
    <MarshalAs(UnmanagedType.LPWStr)> wszUrl As String,   ' LPCWSTR
    dwRetrievalFlags As UInteger,   ' DWORD
    dwTimeout As UInteger,   ' DWORD
    <MarshalAs(UnmanagedType.LPStr)> pszHashId As String,   ' LPCSTR
    pPara As IntPtr,   ' CRYPT_TIMESTAMP_PARA* optional
    pbData As IntPtr,   ' BYTE*
    cbData As UInteger,   ' DWORD
    ppTsContext As IntPtr,   ' CRYPT_TIMESTAMP_CONTEXT** out
    ppTsSigner As IntPtr,   ' CERT_CONTEXT** out
    phStore As IntPtr   ' HCERTSTORE* optional, out
) As <MarshalAs(UnmanagedType.Bool)> Boolean
End Function

' wszUrl : LPCWSTR
' dwRetrievalFlags : DWORD
' dwTimeout : DWORD
' pszHashId : LPCSTR
' pPara : CRYPT_TIMESTAMP_PARA* optional
' pbData : BYTE*
' cbData : DWORD
' ppTsContext : CRYPT_TIMESTAMP_CONTEXT** out
' ppTsSigner : CERT_CONTEXT** out
' phStore : HCERTSTORE* optional, out
Declare PtrSafe Function CryptRetrieveTimeStamp Lib "crypt32" ( _
    ByVal wszUrl As LongPtr, _
    ByVal dwRetrievalFlags As Long, _
    ByVal dwTimeout As Long, _
    ByVal pszHashId As String, _
    ByVal pPara As LongPtr, _
    ByVal pbData As LongPtr, _
    ByVal cbData As Long, _
    ByVal ppTsContext As LongPtr, _
    ByVal ppTsSigner As LongPtr, _
    ByVal phStore 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

CryptRetrieveTimeStamp = ctypes.windll.crypt32.CryptRetrieveTimeStamp
CryptRetrieveTimeStamp.restype = wintypes.BOOL
CryptRetrieveTimeStamp.argtypes = [
    wintypes.LPCWSTR,  # wszUrl : LPCWSTR
    wintypes.DWORD,  # dwRetrievalFlags : DWORD
    wintypes.DWORD,  # dwTimeout : DWORD
    wintypes.LPCSTR,  # pszHashId : LPCSTR
    ctypes.c_void_p,  # pPara : CRYPT_TIMESTAMP_PARA* optional
    ctypes.POINTER(ctypes.c_ubyte),  # pbData : BYTE*
    wintypes.DWORD,  # cbData : DWORD
    ctypes.c_void_p,  # ppTsContext : CRYPT_TIMESTAMP_CONTEXT** out
    ctypes.c_void_p,  # ppTsSigner : CERT_CONTEXT** out
    ctypes.c_void_p,  # phStore : HCERTSTORE* optional, out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('CRYPT32.dll')
CryptRetrieveTimeStamp = Fiddle::Function.new(
  lib['CryptRetrieveTimeStamp'],
  [
    Fiddle::TYPE_VOIDP,  # wszUrl : LPCWSTR
    -Fiddle::TYPE_INT,  # dwRetrievalFlags : DWORD
    -Fiddle::TYPE_INT,  # dwTimeout : DWORD
    Fiddle::TYPE_VOIDP,  # pszHashId : LPCSTR
    Fiddle::TYPE_VOIDP,  # pPara : CRYPT_TIMESTAMP_PARA* optional
    Fiddle::TYPE_VOIDP,  # pbData : BYTE*
    -Fiddle::TYPE_INT,  # cbData : DWORD
    Fiddle::TYPE_VOIDP,  # ppTsContext : CRYPT_TIMESTAMP_CONTEXT** out
    Fiddle::TYPE_VOIDP,  # ppTsSigner : CERT_CONTEXT** out
    Fiddle::TYPE_VOIDP,  # phStore : HCERTSTORE* optional, out
  ],
  Fiddle::TYPE_INT)

#[link(name = "crypt32")]
extern "system" {
    fn CryptRetrieveTimeStamp(
        wszUrl: *const u16,  // LPCWSTR
        dwRetrievalFlags: u32,  // DWORD
        dwTimeout: u32,  // DWORD
        pszHashId: *const u8,  // LPCSTR
        pPara: *const CRYPT_TIMESTAMP_PARA,  // CRYPT_TIMESTAMP_PARA* optional
        pbData: *const u8,  // BYTE*
        cbData: u32,  // DWORD
        ppTsContext: *mut *mut CRYPT_TIMESTAMP_CONTEXT,  // CRYPT_TIMESTAMP_CONTEXT** out
        ppTsSigner: *mut *mut CERT_CONTEXT,  // CERT_CONTEXT** out
        phStore: *mut *mut core::ffi::c_void  // HCERTSTORE* optional, out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("CRYPT32.dll", SetLastError = true)]
public static extern bool CryptRetrieveTimeStamp([MarshalAs(UnmanagedType.LPWStr)] string wszUrl, uint dwRetrievalFlags, uint dwTimeout, [MarshalAs(UnmanagedType.LPStr)] string pszHashId, IntPtr pPara, IntPtr pbData, uint cbData, IntPtr ppTsContext, IntPtr ppTsSigner, IntPtr phStore);
"@
$api = Add-Type -MemberDefinition $sig -Name 'CRYPT32_CryptRetrieveTimeStamp' -Namespace Win32 -PassThru
# $api::CryptRetrieveTimeStamp(wszUrl, dwRetrievalFlags, dwTimeout, pszHashId, pPara, pbData, cbData, ppTsContext, ppTsSigner, phStore)

#uselib "CRYPT32.dll"
#func global CryptRetrieveTimeStamp "CryptRetrieveTimeStamp" sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr
; CryptRetrieveTimeStamp wszUrl, dwRetrievalFlags, dwTimeout, pszHashId, varptr(pPara), varptr(pbData), cbData, varptr(ppTsContext), varptr(ppTsSigner), phStore   ; 戻り値は stat
; wszUrl : LPCWSTR -> "sptr"
; dwRetrievalFlags : DWORD -> "sptr"
; dwTimeout : DWORD -> "sptr"
; pszHashId : LPCSTR -> "sptr"
; pPara : CRYPT_TIMESTAMP_PARA* optional -> "sptr"
; pbData : BYTE* -> "sptr"
; cbData : DWORD -> "sptr"
; ppTsContext : CRYPT_TIMESTAMP_CONTEXT** out -> "sptr"
; ppTsSigner : CERT_CONTEXT** out -> "sptr"
; phStore : HCERTSTORE* 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 (
	crypt32 = windows.NewLazySystemDLL("CRYPT32.dll")
	procCryptRetrieveTimeStamp = crypt32.NewProc("CryptRetrieveTimeStamp")
)

// wszUrl (LPCWSTR), dwRetrievalFlags (DWORD), dwTimeout (DWORD), pszHashId (LPCSTR), pPara (CRYPT_TIMESTAMP_PARA* optional), pbData (BYTE*), cbData (DWORD), ppTsContext (CRYPT_TIMESTAMP_CONTEXT** out), ppTsSigner (CERT_CONTEXT** out), phStore (HCERTSTORE* optional, out)
r1, _, err := procCryptRetrieveTimeStamp.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(wszUrl))),
	uintptr(dwRetrievalFlags),
	uintptr(dwTimeout),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(pszHashId))),
	uintptr(pPara),
	uintptr(pbData),
	uintptr(cbData),
	uintptr(ppTsContext),
	uintptr(ppTsSigner),
	uintptr(phStore),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function CryptRetrieveTimeStamp(
  wszUrl: PWideChar;   // LPCWSTR
  dwRetrievalFlags: DWORD;   // DWORD
  dwTimeout: DWORD;   // DWORD
  pszHashId: PAnsiChar;   // LPCSTR
  pPara: Pointer;   // CRYPT_TIMESTAMP_PARA* optional
  pbData: Pointer;   // BYTE*
  cbData: DWORD;   // DWORD
  ppTsContext: Pointer;   // CRYPT_TIMESTAMP_CONTEXT** out
  ppTsSigner: Pointer;   // CERT_CONTEXT** out
  phStore: Pointer   // HCERTSTORE* optional, out
): BOOL; stdcall;
  external 'CRYPT32.dll' name 'CryptRetrieveTimeStamp';

result := DllCall("CRYPT32\CryptRetrieveTimeStamp"
    , "WStr", wszUrl   ; LPCWSTR
    , "UInt", dwRetrievalFlags   ; DWORD
    , "UInt", dwTimeout   ; DWORD
    , "AStr", pszHashId   ; LPCSTR
    , "Ptr", pPara   ; CRYPT_TIMESTAMP_PARA* optional
    , "Ptr", pbData   ; BYTE*
    , "UInt", cbData   ; DWORD
    , "Ptr", ppTsContext   ; CRYPT_TIMESTAMP_CONTEXT** out
    , "Ptr", ppTsSigner   ; CERT_CONTEXT** out
    , "Ptr", phStore   ; HCERTSTORE* optional, out
    , "Int")   ; return: BOOL

●CryptRetrieveTimeStamp(wszUrl, dwRetrievalFlags, dwTimeout, pszHashId, pPara, pbData, cbData, ppTsContext, ppTsSigner, phStore) = DLL("CRYPT32.dll", "bool CryptRetrieveTimeStamp(char*, dword, dword, char*, void*, void*, dword, void*, void*, void*)")
# 呼び出し: CryptRetrieveTimeStamp(wszUrl, dwRetrievalFlags, dwTimeout, pszHashId, pPara, pbData, cbData, ppTsContext, ppTsSigner, phStore)
# wszUrl : LPCWSTR -> "char*"
# dwRetrievalFlags : DWORD -> "dword"
# dwTimeout : DWORD -> "dword"
# pszHashId : LPCSTR -> "char*"
# pPara : CRYPT_TIMESTAMP_PARA* optional -> "void*"
# pbData : BYTE* -> "void*"
# cbData : DWORD -> "dword"
# ppTsContext : CRYPT_TIMESTAMP_CONTEXT** out -> "void*"
# ppTsSigner : CERT_CONTEXT** out -> "void*"
# phStore : HCERTSTORE* optional, 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 "crypt32" fn CryptRetrieveTimeStamp(
    wszUrl: [*c]const u16, // LPCWSTR
    dwRetrievalFlags: u32, // DWORD
    dwTimeout: u32, // DWORD
    pszHashId: [*c]const u8, // LPCSTR
    pPara: [*c]CRYPT_TIMESTAMP_PARA, // CRYPT_TIMESTAMP_PARA* optional
    pbData: [*c]u8, // BYTE*
    cbData: u32, // DWORD
    ppTsContext: [*c][*c]CRYPT_TIMESTAMP_CONTEXT, // CRYPT_TIMESTAMP_CONTEXT** out
    ppTsSigner: [*c][*c]CERT_CONTEXT, // CERT_CONTEXT** out
    phStore: ?*anyopaque // HCERTSTORE* optional, out
) callconv(std.os.windows.WINAPI) i32;

proc CryptRetrieveTimeStamp(
    wszUrl: WideCString,  # LPCWSTR
    dwRetrievalFlags: uint32,  # DWORD
    dwTimeout: uint32,  # DWORD
    pszHashId: cstring,  # LPCSTR
    pPara: ptr CRYPT_TIMESTAMP_PARA,  # CRYPT_TIMESTAMP_PARA* optional
    pbData: ptr uint8,  # BYTE*
    cbData: uint32,  # DWORD
    ppTsContext: ptr CRYPT_TIMESTAMP_CONTEXT,  # CRYPT_TIMESTAMP_CONTEXT** out
    ppTsSigner: ptr CERT_CONTEXT,  # CERT_CONTEXT** out
    phStore: pointer  # HCERTSTORE* optional, out
): int32 {.importc: "CryptRetrieveTimeStamp", stdcall, dynlib: "CRYPT32.dll".}

pragma(lib, "crypt32");
extern(Windows)
int CryptRetrieveTimeStamp(
    const(wchar)* wszUrl,   // LPCWSTR
    uint dwRetrievalFlags,   // DWORD
    uint dwTimeout,   // DWORD
    const(char)* pszHashId,   // LPCSTR
    CRYPT_TIMESTAMP_PARA* pPara,   // CRYPT_TIMESTAMP_PARA* optional
    ubyte* pbData,   // BYTE*
    uint cbData,   // DWORD
    CRYPT_TIMESTAMP_CONTEXT** ppTsContext,   // CRYPT_TIMESTAMP_CONTEXT** out
    CERT_CONTEXT** ppTsSigner,   // CERT_CONTEXT** out
    void* phStore   // HCERTSTORE* optional, out
);

ccall((:CryptRetrieveTimeStamp, "CRYPT32.dll"), stdcall, Int32,
      (Cwstring, UInt32, UInt32, Cstring, Ptr{CRYPT_TIMESTAMP_PARA}, Ptr{UInt8}, UInt32, Ptr{CRYPT_TIMESTAMP_CONTEXT}, Ptr{CERT_CONTEXT}, Ptr{Cvoid}),
      wszUrl, dwRetrievalFlags, dwTimeout, pszHashId, pPara, pbData, cbData, ppTsContext, ppTsSigner, phStore)
# wszUrl : LPCWSTR -> Cwstring
# dwRetrievalFlags : DWORD -> UInt32
# dwTimeout : DWORD -> UInt32
# pszHashId : LPCSTR -> Cstring
# pPara : CRYPT_TIMESTAMP_PARA* optional -> Ptr{CRYPT_TIMESTAMP_PARA}
# pbData : BYTE* -> Ptr{UInt8}
# cbData : DWORD -> UInt32
# ppTsContext : CRYPT_TIMESTAMP_CONTEXT** out -> Ptr{CRYPT_TIMESTAMP_CONTEXT}
# ppTsSigner : CERT_CONTEXT** out -> Ptr{CERT_CONTEXT}
# phStore : HCERTSTORE* optional, out -> Ptr{Cvoid}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t CryptRetrieveTimeStamp(
    const uint16_t* wszUrl,
    uint32_t dwRetrievalFlags,
    uint32_t dwTimeout,
    const char* pszHashId,
    void* pPara,
    uint8_t* pbData,
    uint32_t cbData,
    void* ppTsContext,
    void* ppTsSigner,
    void* phStore);
]]
local crypt32 = ffi.load("crypt32")
-- crypt32.CryptRetrieveTimeStamp(wszUrl, dwRetrievalFlags, dwTimeout, pszHashId, pPara, pbData, cbData, ppTsContext, ppTsSigner, phStore)
-- wszUrl : LPCWSTR
-- dwRetrievalFlags : DWORD
-- dwTimeout : DWORD
-- pszHashId : LPCSTR
-- pPara : CRYPT_TIMESTAMP_PARA* optional
-- pbData : BYTE*
-- cbData : DWORD
-- ppTsContext : CRYPT_TIMESTAMP_CONTEXT** out
-- ppTsSigner : CERT_CONTEXT** out
-- phStore : HCERTSTORE* 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('CRYPT32.dll');
const CryptRetrieveTimeStamp = lib.func('__stdcall', 'CryptRetrieveTimeStamp', 'int32_t', ['str16', 'uint32_t', 'uint32_t', 'str', 'void *', 'uint8_t *', 'uint32_t', 'void *', 'void *', 'void *']);
// CryptRetrieveTimeStamp(wszUrl, dwRetrievalFlags, dwTimeout, pszHashId, pPara, pbData, cbData, ppTsContext, ppTsSigner, phStore)
// wszUrl : LPCWSTR -> 'str16'
// dwRetrievalFlags : DWORD -> 'uint32_t'
// dwTimeout : DWORD -> 'uint32_t'
// pszHashId : LPCSTR -> 'str'
// pPara : CRYPT_TIMESTAMP_PARA* optional -> 'void *'
// pbData : BYTE* -> 'uint8_t *'
// cbData : DWORD -> 'uint32_t'
// ppTsContext : CRYPT_TIMESTAMP_CONTEXT** out -> 'void *'
// ppTsSigner : CERT_CONTEXT** out -> 'void *'
// phStore : HCERTSTORE* optional, out -> 'void *'
// 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("CRYPT32.dll", {
  CryptRetrieveTimeStamp: { parameters: ["buffer", "u32", "u32", "buffer", "pointer", "pointer", "u32", "pointer", "pointer", "pointer"], result: "i32" },
});
// lib.symbols.CryptRetrieveTimeStamp(wszUrl, dwRetrievalFlags, dwTimeout, pszHashId, pPara, pbData, cbData, ppTsContext, ppTsSigner, phStore)
// wszUrl : LPCWSTR -> "buffer"
// dwRetrievalFlags : DWORD -> "u32"
// dwTimeout : DWORD -> "u32"
// pszHashId : LPCSTR -> "buffer"
// pPara : CRYPT_TIMESTAMP_PARA* optional -> "pointer"
// pbData : BYTE* -> "pointer"
// cbData : DWORD -> "u32"
// ppTsContext : CRYPT_TIMESTAMP_CONTEXT** out -> "pointer"
// ppTsSigner : CERT_CONTEXT** out -> "pointer"
// phStore : HCERTSTORE* optional, 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 CryptRetrieveTimeStamp(
    const uint16_t* wszUrl,
    uint32_t dwRetrievalFlags,
    uint32_t dwTimeout,
    const char* pszHashId,
    void* pPara,
    uint8_t* pbData,
    uint32_t cbData,
    void* ppTsContext,
    void* ppTsSigner,
    void* phStore);
C, "CRYPT32.dll");
// $ffi->CryptRetrieveTimeStamp(wszUrl, dwRetrievalFlags, dwTimeout, pszHashId, pPara, pbData, cbData, ppTsContext, ppTsSigner, phStore);
// wszUrl : LPCWSTR
// dwRetrievalFlags : DWORD
// dwTimeout : DWORD
// pszHashId : LPCSTR
// pPara : CRYPT_TIMESTAMP_PARA* optional
// pbData : BYTE*
// cbData : DWORD
// ppTsContext : CRYPT_TIMESTAMP_CONTEXT** out
// ppTsSigner : CERT_CONTEXT** out
// phStore : HCERTSTORE* 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 Crypt32 extends StdCallLibrary {
    Crypt32 INSTANCE = Native.load("crypt32", Crypt32.class);
    boolean CryptRetrieveTimeStamp(
        WString wszUrl,   // LPCWSTR
        int dwRetrievalFlags,   // DWORD
        int dwTimeout,   // DWORD
        String pszHashId,   // LPCSTR
        Pointer pPara,   // CRYPT_TIMESTAMP_PARA* optional
        byte[] pbData,   // BYTE*
        int cbData,   // DWORD
        Pointer ppTsContext,   // CRYPT_TIMESTAMP_CONTEXT** out
        Pointer ppTsSigner,   // CERT_CONTEXT** out
        Pointer phStore   // HCERTSTORE* optional, out
    );
}

@[Link("crypt32")]
lib LibCRYPT32
  fun CryptRetrieveTimeStamp = CryptRetrieveTimeStamp(
    wszUrl : UInt16*,   # LPCWSTR
    dwRetrievalFlags : UInt32,   # DWORD
    dwTimeout : UInt32,   # DWORD
    pszHashId : UInt8*,   # LPCSTR
    pPara : CRYPT_TIMESTAMP_PARA*,   # CRYPT_TIMESTAMP_PARA* optional
    pbData : UInt8*,   # BYTE*
    cbData : UInt32,   # DWORD
    ppTsContext : CRYPT_TIMESTAMP_CONTEXT**,   # CRYPT_TIMESTAMP_CONTEXT** out
    ppTsSigner : CERT_CONTEXT**,   # CERT_CONTEXT** out
    phStore : Void*   # HCERTSTORE* 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 CryptRetrieveTimeStampNative = Int32 Function(Pointer<Utf16>, Uint32, Uint32, Pointer<Utf8>, Pointer<Void>, Pointer<Uint8>, Uint32, Pointer<Void>, Pointer<Void>, Pointer<Void>);
typedef CryptRetrieveTimeStampDart = int Function(Pointer<Utf16>, int, int, Pointer<Utf8>, Pointer<Void>, Pointer<Uint8>, int, Pointer<Void>, Pointer<Void>, Pointer<Void>);
final CryptRetrieveTimeStamp = DynamicLibrary.open('CRYPT32.dll')
    .lookupFunction<CryptRetrieveTimeStampNative, CryptRetrieveTimeStampDart>('CryptRetrieveTimeStamp');
// wszUrl : LPCWSTR -> Pointer<Utf16>
// dwRetrievalFlags : DWORD -> Uint32
// dwTimeout : DWORD -> Uint32
// pszHashId : LPCSTR -> Pointer<Utf8>
// pPara : CRYPT_TIMESTAMP_PARA* optional -> Pointer<Void>
// pbData : BYTE* -> Pointer<Uint8>
// cbData : DWORD -> Uint32
// ppTsContext : CRYPT_TIMESTAMP_CONTEXT** out -> Pointer<Void>
// ppTsSigner : CERT_CONTEXT** out -> Pointer<Void>
// phStore : HCERTSTORE* optional, out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function CryptRetrieveTimeStamp(
  wszUrl: PWideChar;   // LPCWSTR
  dwRetrievalFlags: DWORD;   // DWORD
  dwTimeout: DWORD;   // DWORD
  pszHashId: PAnsiChar;   // LPCSTR
  pPara: Pointer;   // CRYPT_TIMESTAMP_PARA* optional
  pbData: Pointer;   // BYTE*
  cbData: DWORD;   // DWORD
  ppTsContext: Pointer;   // CRYPT_TIMESTAMP_CONTEXT** out
  ppTsSigner: Pointer;   // CERT_CONTEXT** out
  phStore: Pointer   // HCERTSTORE* optional, out
): BOOL; stdcall;
  external 'CRYPT32.dll' name 'CryptRetrieveTimeStamp';

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

foreign import stdcall safe "CryptRetrieveTimeStamp"
  c_CryptRetrieveTimeStamp :: CWString -> Word32 -> Word32 -> CString -> Ptr () -> Ptr Word8 -> Word32 -> Ptr () -> Ptr () -> Ptr () -> IO CInt
-- wszUrl : LPCWSTR -> CWString
-- dwRetrievalFlags : DWORD -> Word32
-- dwTimeout : DWORD -> Word32
-- pszHashId : LPCSTR -> CString
-- pPara : CRYPT_TIMESTAMP_PARA* optional -> Ptr ()
-- pbData : BYTE* -> Ptr Word8
-- cbData : DWORD -> Word32
-- ppTsContext : CRYPT_TIMESTAMP_CONTEXT** out -> Ptr ()
-- ppTsSigner : CERT_CONTEXT** out -> Ptr ()
-- phStore : HCERTSTORE* optional, out -> Ptr ()
-- 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 cryptretrievetimestamp =
  foreign "CryptRetrieveTimeStamp"
    ((ptr uint16_t) @-> uint32_t @-> uint32_t @-> string @-> (ptr void) @-> (ptr uint8_t) @-> uint32_t @-> (ptr void) @-> (ptr void) @-> (ptr void) @-> returning int32_t)
(* wszUrl : LPCWSTR -> (ptr uint16_t) *)
(* dwRetrievalFlags : DWORD -> uint32_t *)
(* dwTimeout : DWORD -> uint32_t *)
(* pszHashId : LPCSTR -> string *)
(* pPara : CRYPT_TIMESTAMP_PARA* optional -> (ptr void) *)
(* pbData : BYTE* -> (ptr uint8_t) *)
(* cbData : DWORD -> uint32_t *)
(* ppTsContext : CRYPT_TIMESTAMP_CONTEXT** out -> (ptr void) *)
(* ppTsSigner : CERT_CONTEXT** out -> (ptr void) *)
(* phStore : HCERTSTORE* optional, out -> (ptr void) *)
(* 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 crypt32 (t "CRYPT32.dll"))
(cffi:use-foreign-library crypt32)

(cffi:defcfun ("CryptRetrieveTimeStamp" crypt-retrieve-time-stamp :convention :stdcall) :int32
  (wsz-url (:string :encoding :utf-16le))   ; LPCWSTR
  (dw-retrieval-flags :uint32)   ; DWORD
  (dw-timeout :uint32)   ; DWORD
  (psz-hash-id :string)   ; LPCSTR
  (p-para :pointer)   ; CRYPT_TIMESTAMP_PARA* optional
  (pb-data :pointer)   ; BYTE*
  (cb-data :uint32)   ; DWORD
  (pp-ts-context :pointer)   ; CRYPT_TIMESTAMP_CONTEXT** out
  (pp-ts-signer :pointer)   ; CERT_CONTEXT** out
  (ph-store :pointer))   ; HCERTSTORE* optional, out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $CryptRetrieveTimeStamp = Win32::API::More->new('CRYPT32',
    'BOOL CryptRetrieveTimeStamp(LPCWSTR wszUrl, DWORD dwRetrievalFlags, DWORD dwTimeout, LPCSTR pszHashId, LPVOID pPara, LPVOID pbData, DWORD cbData, LPVOID ppTsContext, LPVOID ppTsSigner, HANDLE phStore)');
# my $ret = $CryptRetrieveTimeStamp->Call($wszUrl, $dwRetrievalFlags, $dwTimeout, $pszHashId, $pPara, $pbData, $cbData, $ppTsContext, $ppTsSigner, $phStore);
# wszUrl : LPCWSTR -> LPCWSTR
# dwRetrievalFlags : DWORD -> DWORD
# dwTimeout : DWORD -> DWORD
# pszHashId : LPCSTR -> LPCSTR
# pPara : CRYPT_TIMESTAMP_PARA* optional -> LPVOID
# pbData : BYTE* -> LPVOID
# cbData : DWORD -> DWORD
# ppTsContext : CRYPT_TIMESTAMP_CONTEXT** out -> LPVOID
# ppTsSigner : CERT_CONTEXT** out -> LPVOID
# phStore : HCERTSTORE* optional, out -> HANDLE
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。