CryptRetrieveObjectByUrlW

// CRYPTNET.dll  (Unicode / -W)
#include <windows.h>

BOOL CryptRetrieveObjectByUrlW(
    LPCWSTR pszUrl,
    LPCSTR pszObjectOid,   // optional
    DWORD dwRetrievalFlags,
    DWORD dwTimeout,
    void** ppvObject,
    HCRYPTASYNC hAsyncRetrieve,   // optional
    CRYPT_CREDENTIALS* pCredentials,   // optional
    void* pvVerify,   // optional
    CRYPT_RETRIEVE_AUX_INFO* pAuxInfo   // optional
);

<DllImport("CRYPTNET.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function CryptRetrieveObjectByUrlW(
    <MarshalAs(UnmanagedType.LPWStr)> pszUrl As String,   ' LPCWSTR
    <MarshalAs(UnmanagedType.LPStr)> pszObjectOid As String,   ' LPCSTR optional
    dwRetrievalFlags As UInteger,   ' DWORD
    dwTimeout As UInteger,   ' DWORD
    ppvObject As IntPtr,   ' void** out
    hAsyncRetrieve As IntPtr,   ' HCRYPTASYNC optional
    pCredentials As IntPtr,   ' CRYPT_CREDENTIALS* optional
    pvVerify As IntPtr,   ' void* optional
    pAuxInfo As IntPtr   ' CRYPT_RETRIEVE_AUX_INFO* optional, in/out
) As <MarshalAs(UnmanagedType.Bool)> Boolean
End Function

' pszUrl : LPCWSTR
' pszObjectOid : LPCSTR optional
' dwRetrievalFlags : DWORD
' dwTimeout : DWORD
' ppvObject : void** out
' hAsyncRetrieve : HCRYPTASYNC optional
' pCredentials : CRYPT_CREDENTIALS* optional
' pvVerify : void* optional
' pAuxInfo : CRYPT_RETRIEVE_AUX_INFO* optional, in/out
Declare PtrSafe Function CryptRetrieveObjectByUrlW Lib "cryptnet" ( _
    ByVal pszUrl As LongPtr, _
    ByVal pszObjectOid As String, _
    ByVal dwRetrievalFlags As Long, _
    ByVal dwTimeout As Long, _
    ByVal ppvObject As LongPtr, _
    ByVal hAsyncRetrieve As LongPtr, _
    ByVal pCredentials As LongPtr, _
    ByVal pvVerify As LongPtr, _
    ByVal pAuxInfo As LongPtr) As Long
' Unicode(W): 文字列は ByVal As LongPtr とし StrPtr(unicodeStr) を渡す
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

CryptRetrieveObjectByUrlW = ctypes.windll.cryptnet.CryptRetrieveObjectByUrlW
CryptRetrieveObjectByUrlW.restype = wintypes.BOOL
CryptRetrieveObjectByUrlW.argtypes = [
    wintypes.LPCWSTR,  # pszUrl : LPCWSTR
    wintypes.LPCSTR,  # pszObjectOid : LPCSTR optional
    wintypes.DWORD,  # dwRetrievalFlags : DWORD
    wintypes.DWORD,  # dwTimeout : DWORD
    ctypes.c_void_p,  # ppvObject : void** out
    ctypes.c_ssize_t,  # hAsyncRetrieve : HCRYPTASYNC optional
    ctypes.c_void_p,  # pCredentials : CRYPT_CREDENTIALS* optional
    ctypes.POINTER(None),  # pvVerify : void* optional
    ctypes.c_void_p,  # pAuxInfo : CRYPT_RETRIEVE_AUX_INFO* optional, in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('CRYPTNET.dll')
CryptRetrieveObjectByUrlW = Fiddle::Function.new(
  lib['CryptRetrieveObjectByUrlW'],
  [
    Fiddle::TYPE_VOIDP,  # pszUrl : LPCWSTR
    Fiddle::TYPE_VOIDP,  # pszObjectOid : LPCSTR optional
    -Fiddle::TYPE_INT,  # dwRetrievalFlags : DWORD
    -Fiddle::TYPE_INT,  # dwTimeout : DWORD
    Fiddle::TYPE_VOIDP,  # ppvObject : void** out
    Fiddle::TYPE_INTPTR_T,  # hAsyncRetrieve : HCRYPTASYNC optional
    Fiddle::TYPE_VOIDP,  # pCredentials : CRYPT_CREDENTIALS* optional
    Fiddle::TYPE_VOIDP,  # pvVerify : void* optional
    Fiddle::TYPE_VOIDP,  # pAuxInfo : CRYPT_RETRIEVE_AUX_INFO* optional, in/out
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "cryptnet")]
extern "system" {
    fn CryptRetrieveObjectByUrlW(
        pszUrl: *const u16,  // LPCWSTR
        pszObjectOid: *const u8,  // LPCSTR optional
        dwRetrievalFlags: u32,  // DWORD
        dwTimeout: u32,  // DWORD
        ppvObject: *mut *mut (),  // void** out
        hAsyncRetrieve: isize,  // HCRYPTASYNC optional
        pCredentials: *mut CRYPT_CREDENTIALS,  // CRYPT_CREDENTIALS* optional
        pvVerify: *mut (),  // void* optional
        pAuxInfo: *mut CRYPT_RETRIEVE_AUX_INFO  // CRYPT_RETRIEVE_AUX_INFO* optional, in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("CRYPTNET.dll", CharSet = CharSet.Unicode)]
public static extern bool CryptRetrieveObjectByUrlW([MarshalAs(UnmanagedType.LPWStr)] string pszUrl, [MarshalAs(UnmanagedType.LPStr)] string pszObjectOid, uint dwRetrievalFlags, uint dwTimeout, IntPtr ppvObject, IntPtr hAsyncRetrieve, IntPtr pCredentials, IntPtr pvVerify, IntPtr pAuxInfo);
"@
$api = Add-Type -MemberDefinition $sig -Name 'CRYPTNET_CryptRetrieveObjectByUrlW' -Namespace Win32 -PassThru
# $api::CryptRetrieveObjectByUrlW(pszUrl, pszObjectOid, dwRetrievalFlags, dwTimeout, ppvObject, hAsyncRetrieve, pCredentials, pvVerify, pAuxInfo)

#uselib "CRYPTNET.dll"
#func global CryptRetrieveObjectByUrlW "CryptRetrieveObjectByUrlW" wptr, wptr, wptr, wptr, wptr, wptr, wptr, wptr, wptr
; CryptRetrieveObjectByUrlW pszUrl, pszObjectOid, dwRetrievalFlags, dwTimeout, ppvObject, hAsyncRetrieve, varptr(pCredentials), pvVerify, varptr(pAuxInfo)   ; 戻り値は stat
; pszUrl : LPCWSTR -> "wptr"
; pszObjectOid : LPCSTR optional -> "wptr"
; dwRetrievalFlags : DWORD -> "wptr"
; dwTimeout : DWORD -> "wptr"
; ppvObject : void** out -> "wptr"
; hAsyncRetrieve : HCRYPTASYNC optional -> "wptr"
; pCredentials : CRYPT_CREDENTIALS* optional -> "wptr"
; pvVerify : void* optional -> "wptr"
; pAuxInfo : CRYPT_RETRIEVE_AUX_INFO* optional, in/out -> "wptr"
; ※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 (
	cryptnet = windows.NewLazySystemDLL("CRYPTNET.dll")
	procCryptRetrieveObjectByUrlW = cryptnet.NewProc("CryptRetrieveObjectByUrlW")
)

// pszUrl (LPCWSTR), pszObjectOid (LPCSTR optional), dwRetrievalFlags (DWORD), dwTimeout (DWORD), ppvObject (void** out), hAsyncRetrieve (HCRYPTASYNC optional), pCredentials (CRYPT_CREDENTIALS* optional), pvVerify (void* optional), pAuxInfo (CRYPT_RETRIEVE_AUX_INFO* optional, in/out)
r1, _, err := procCryptRetrieveObjectByUrlW.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pszUrl))),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(pszObjectOid))),
	uintptr(dwRetrievalFlags),
	uintptr(dwTimeout),
	uintptr(ppvObject),
	uintptr(hAsyncRetrieve),
	uintptr(pCredentials),
	uintptr(pvVerify),
	uintptr(pAuxInfo),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function CryptRetrieveObjectByUrlW(
  pszUrl: PWideChar;   // LPCWSTR
  pszObjectOid: PAnsiChar;   // LPCSTR optional
  dwRetrievalFlags: DWORD;   // DWORD
  dwTimeout: DWORD;   // DWORD
  ppvObject: Pointer;   // void** out
  hAsyncRetrieve: NativeInt;   // HCRYPTASYNC optional
  pCredentials: Pointer;   // CRYPT_CREDENTIALS* optional
  pvVerify: Pointer;   // void* optional
  pAuxInfo: Pointer   // CRYPT_RETRIEVE_AUX_INFO* optional, in/out
): BOOL; stdcall;
  external 'CRYPTNET.dll' name 'CryptRetrieveObjectByUrlW';

result := DllCall("CRYPTNET\CryptRetrieveObjectByUrlW"
    , "WStr", pszUrl   ; LPCWSTR
    , "AStr", pszObjectOid   ; LPCSTR optional
    , "UInt", dwRetrievalFlags   ; DWORD
    , "UInt", dwTimeout   ; DWORD
    , "Ptr", ppvObject   ; void** out
    , "Ptr", hAsyncRetrieve   ; HCRYPTASYNC optional
    , "Ptr", pCredentials   ; CRYPT_CREDENTIALS* optional
    , "Ptr", pvVerify   ; void* optional
    , "Ptr", pAuxInfo   ; CRYPT_RETRIEVE_AUX_INFO* optional, in/out
    , "Int")   ; return: BOOL

●CryptRetrieveObjectByUrlW(pszUrl, pszObjectOid, dwRetrievalFlags, dwTimeout, ppvObject, hAsyncRetrieve, pCredentials, pvVerify, pAuxInfo) = DLL("CRYPTNET.dll", "bool CryptRetrieveObjectByUrlW(char*, char*, dword, dword, void*, int, void*, void*, void*)")
# 呼び出し: CryptRetrieveObjectByUrlW(pszUrl, pszObjectOid, dwRetrievalFlags, dwTimeout, ppvObject, hAsyncRetrieve, pCredentials, pvVerify, pAuxInfo)
# pszUrl : LPCWSTR -> "char*"
# pszObjectOid : LPCSTR optional -> "char*"
# dwRetrievalFlags : DWORD -> "dword"
# dwTimeout : DWORD -> "dword"
# ppvObject : void** out -> "void*"
# hAsyncRetrieve : HCRYPTASYNC optional -> "int"
# pCredentials : CRYPT_CREDENTIALS* optional -> "void*"
# pvVerify : void* optional -> "void*"
# pAuxInfo : CRYPT_RETRIEVE_AUX_INFO* optional, 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)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。

const std = @import("std");

extern "cryptnet" fn CryptRetrieveObjectByUrlW(
    pszUrl: [*c]const u16, // LPCWSTR
    pszObjectOid: [*c]const u8, // LPCSTR optional
    dwRetrievalFlags: u32, // DWORD
    dwTimeout: u32, // DWORD
    ppvObject: ?*anyopaque, // void** out
    hAsyncRetrieve: isize, // HCRYPTASYNC optional
    pCredentials: [*c]CRYPT_CREDENTIALS, // CRYPT_CREDENTIALS* optional
    pvVerify: ?*anyopaque, // void* optional
    pAuxInfo: [*c]CRYPT_RETRIEVE_AUX_INFO // CRYPT_RETRIEVE_AUX_INFO* optional, in/out
) callconv(std.os.windows.WINAPI) i32;
// Unicode(-W): UTF-16LE のヌル終端バッファ([*c]const u16)を渡す。

proc CryptRetrieveObjectByUrlW(
    pszUrl: WideCString,  # LPCWSTR
    pszObjectOid: cstring,  # LPCSTR optional
    dwRetrievalFlags: uint32,  # DWORD
    dwTimeout: uint32,  # DWORD
    ppvObject: pointer,  # void** out
    hAsyncRetrieve: int,  # HCRYPTASYNC optional
    pCredentials: ptr CRYPT_CREDENTIALS,  # CRYPT_CREDENTIALS* optional
    pvVerify: pointer,  # void* optional
    pAuxInfo: ptr CRYPT_RETRIEVE_AUX_INFO  # CRYPT_RETRIEVE_AUX_INFO* optional, in/out
): int32 {.importc: "CryptRetrieveObjectByUrlW", stdcall, dynlib: "CRYPTNET.dll".}
# Unicode(-W): WideCString は newWideCString("...") で生成。

pragma(lib, "cryptnet");
extern(Windows)
int CryptRetrieveObjectByUrlW(
    const(wchar)* pszUrl,   // LPCWSTR
    const(char)* pszObjectOid,   // LPCSTR optional
    uint dwRetrievalFlags,   // DWORD
    uint dwTimeout,   // DWORD
    void** ppvObject,   // void** out
    ptrdiff_t hAsyncRetrieve,   // HCRYPTASYNC optional
    CRYPT_CREDENTIALS* pCredentials,   // CRYPT_CREDENTIALS* optional
    void* pvVerify,   // void* optional
    CRYPT_RETRIEVE_AUX_INFO* pAuxInfo   // CRYPT_RETRIEVE_AUX_INFO* optional, in/out
);

ccall((:CryptRetrieveObjectByUrlW, "CRYPTNET.dll"), stdcall, Int32,
      (Cwstring, Cstring, UInt32, UInt32, Ptr{Cvoid}, Int, Ptr{CRYPT_CREDENTIALS}, Ptr{Cvoid}, Ptr{CRYPT_RETRIEVE_AUX_INFO}),
      pszUrl, pszObjectOid, dwRetrievalFlags, dwTimeout, ppvObject, hAsyncRetrieve, pCredentials, pvVerify, pAuxInfo)
# pszUrl : LPCWSTR -> Cwstring
# pszObjectOid : LPCSTR optional -> Cstring
# dwRetrievalFlags : DWORD -> UInt32
# dwTimeout : DWORD -> UInt32
# ppvObject : void** out -> Ptr{Cvoid}
# hAsyncRetrieve : HCRYPTASYNC optional -> Int
# pCredentials : CRYPT_CREDENTIALS* optional -> Ptr{CRYPT_CREDENTIALS}
# pvVerify : void* optional -> Ptr{Cvoid}
# pAuxInfo : CRYPT_RETRIEVE_AUX_INFO* optional, in/out -> Ptr{CRYPT_RETRIEVE_AUX_INFO}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。
# Unicode(-W): Cwstring には transcode(UInt16, "...") 等で UTF-16 を渡す。

local ffi = require("ffi")
ffi.cdef[[
int32_t CryptRetrieveObjectByUrlW(
    const uint16_t* pszUrl,
    const char* pszObjectOid,
    uint32_t dwRetrievalFlags,
    uint32_t dwTimeout,
    void** ppvObject,
    intptr_t hAsyncRetrieve,
    void* pCredentials,
    void* pvVerify,
    void* pAuxInfo);
]]
local cryptnet = ffi.load("cryptnet")
-- cryptnet.CryptRetrieveObjectByUrlW(pszUrl, pszObjectOid, dwRetrievalFlags, dwTimeout, ppvObject, hAsyncRetrieve, pCredentials, pvVerify, pAuxInfo)
-- pszUrl : LPCWSTR
-- pszObjectOid : LPCSTR optional
-- dwRetrievalFlags : DWORD
-- dwTimeout : DWORD
-- ppvObject : void** out
-- hAsyncRetrieve : HCRYPTASYNC optional
-- pCredentials : CRYPT_CREDENTIALS* optional
-- pvVerify : void* optional
-- pAuxInfo : CRYPT_RETRIEVE_AUX_INFO* optional, 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。
-- Unicode(-W): uint16_t* には UTF-16LE のバッファ(ffi.new("uint16_t[?]", ...))を渡す。

const koffi = require('koffi');
const lib = koffi.load('CRYPTNET.dll');
const CryptRetrieveObjectByUrlW = lib.func('__stdcall', 'CryptRetrieveObjectByUrlW', 'int32_t', ['str16', 'str', 'uint32_t', 'uint32_t', 'void *', 'intptr_t', 'void *', 'void *', 'void *']);
// CryptRetrieveObjectByUrlW(pszUrl, pszObjectOid, dwRetrievalFlags, dwTimeout, ppvObject, hAsyncRetrieve, pCredentials, pvVerify, pAuxInfo)
// pszUrl : LPCWSTR -> 'str16'
// pszObjectOid : LPCSTR optional -> 'str'
// dwRetrievalFlags : DWORD -> 'uint32_t'
// dwTimeout : DWORD -> 'uint32_t'
// ppvObject : void** out -> 'void *'
// hAsyncRetrieve : HCRYPTASYNC optional -> 'intptr_t'
// pCredentials : CRYPT_CREDENTIALS* optional -> 'void *'
// pvVerify : void* optional -> 'void *'
// pAuxInfo : CRYPT_RETRIEVE_AUX_INFO* optional, in/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("CRYPTNET.dll", {
  CryptRetrieveObjectByUrlW: { parameters: ["buffer", "buffer", "u32", "u32", "pointer", "isize", "pointer", "pointer", "pointer"], result: "i32" },
});
// lib.symbols.CryptRetrieveObjectByUrlW(pszUrl, pszObjectOid, dwRetrievalFlags, dwTimeout, ppvObject, hAsyncRetrieve, pCredentials, pvVerify, pAuxInfo)
// pszUrl : LPCWSTR -> "buffer"
// pszObjectOid : LPCSTR optional -> "buffer"
// dwRetrievalFlags : DWORD -> "u32"
// dwTimeout : DWORD -> "u32"
// ppvObject : void** out -> "pointer"
// hAsyncRetrieve : HCRYPTASYNC optional -> "isize"
// pCredentials : CRYPT_CREDENTIALS* optional -> "pointer"
// pvVerify : void* optional -> "pointer"
// pAuxInfo : CRYPT_RETRIEVE_AUX_INFO* optional, in/out -> "pointer"
// 文字列は "buffer"。Unicode(-W) は new TextEncoder() ではなく UTF-16LE のバイト列(末尾に \x00\x00)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 CryptRetrieveObjectByUrlW(
    const uint16_t* pszUrl,
    const char* pszObjectOid,
    uint32_t dwRetrievalFlags,
    uint32_t dwTimeout,
    void** ppvObject,
    intptr_t hAsyncRetrieve,
    void* pCredentials,
    void* pvVerify,
    void* pAuxInfo);
C, "CRYPTNET.dll");
// $ffi->CryptRetrieveObjectByUrlW(pszUrl, pszObjectOid, dwRetrievalFlags, dwTimeout, ppvObject, hAsyncRetrieve, pCredentials, pvVerify, pAuxInfo);
// pszUrl : LPCWSTR
// pszObjectOid : LPCSTR optional
// dwRetrievalFlags : DWORD
// dwTimeout : DWORD
// ppvObject : void** out
// hAsyncRetrieve : HCRYPTASYNC optional
// pCredentials : CRYPT_CREDENTIALS* optional
// pvVerify : void* optional
// pAuxInfo : CRYPT_RETRIEVE_AUX_INFO* optional, 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 Cryptnet extends StdCallLibrary {
    Cryptnet INSTANCE = Native.load("cryptnet", Cryptnet.class, W32APIOptions.UNICODE_OPTIONS);
    boolean CryptRetrieveObjectByUrlW(
        WString pszUrl,   // LPCWSTR
        String pszObjectOid,   // LPCSTR optional
        int dwRetrievalFlags,   // DWORD
        int dwTimeout,   // DWORD
        Pointer ppvObject,   // void** out
        long hAsyncRetrieve,   // HCRYPTASYNC optional
        Pointer pCredentials,   // CRYPT_CREDENTIALS* optional
        Pointer pvVerify,   // void* optional
        Pointer pAuxInfo   // CRYPT_RETRIEVE_AUX_INFO* optional, in/out
    );
}
// Unicode(-W): WString(入力)/char[](出力)で UTF-16 をマーシャリング。

@[Link("cryptnet")]
lib LibCRYPTNET
  fun CryptRetrieveObjectByUrlW = CryptRetrieveObjectByUrlW(
    pszUrl : UInt16*,   # LPCWSTR
    pszObjectOid : UInt8*,   # LPCSTR optional
    dwRetrievalFlags : UInt32,   # DWORD
    dwTimeout : UInt32,   # DWORD
    ppvObject : Void**,   # void** out
    hAsyncRetrieve : LibC::SSizeT,   # HCRYPTASYNC optional
    pCredentials : CRYPT_CREDENTIALS*,   # CRYPT_CREDENTIALS* optional
    pvVerify : Void*,   # void* optional
    pAuxInfo : CRYPT_RETRIEVE_AUX_INFO*   # CRYPT_RETRIEVE_AUX_INFO* optional, 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 CryptRetrieveObjectByUrlWNative = Int32 Function(Pointer<Utf16>, Pointer<Utf8>, Uint32, Uint32, Pointer<Void>, IntPtr, Pointer<Void>, Pointer<Void>, Pointer<Void>);
typedef CryptRetrieveObjectByUrlWDart = int Function(Pointer<Utf16>, Pointer<Utf8>, int, int, Pointer<Void>, int, Pointer<Void>, Pointer<Void>, Pointer<Void>);
final CryptRetrieveObjectByUrlW = DynamicLibrary.open('CRYPTNET.dll')
    .lookupFunction<CryptRetrieveObjectByUrlWNative, CryptRetrieveObjectByUrlWDart>('CryptRetrieveObjectByUrlW');
// pszUrl : LPCWSTR -> Pointer<Utf16>
// pszObjectOid : LPCSTR optional -> Pointer<Utf8>
// dwRetrievalFlags : DWORD -> Uint32
// dwTimeout : DWORD -> Uint32
// ppvObject : void** out -> Pointer<Void>
// hAsyncRetrieve : HCRYPTASYNC optional -> IntPtr
// pCredentials : CRYPT_CREDENTIALS* optional -> Pointer<Void>
// pvVerify : void* optional -> Pointer<Void>
// pAuxInfo : CRYPT_RETRIEVE_AUX_INFO* optional, in/out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function CryptRetrieveObjectByUrlW(
  pszUrl: PWideChar;   // LPCWSTR
  pszObjectOid: PAnsiChar;   // LPCSTR optional
  dwRetrievalFlags: DWORD;   // DWORD
  dwTimeout: DWORD;   // DWORD
  ppvObject: Pointer;   // void** out
  hAsyncRetrieve: NativeInt;   // HCRYPTASYNC optional
  pCredentials: Pointer;   // CRYPT_CREDENTIALS* optional
  pvVerify: Pointer;   // void* optional
  pAuxInfo: Pointer   // CRYPT_RETRIEVE_AUX_INFO* optional, in/out
): BOOL; stdcall;
  external 'CRYPTNET.dll' name 'CryptRetrieveObjectByUrlW';

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

foreign import stdcall safe "CryptRetrieveObjectByUrlW"
  c_CryptRetrieveObjectByUrlW :: CWString -> CString -> Word32 -> Word32 -> Ptr () -> CIntPtr -> Ptr () -> Ptr () -> Ptr () -> IO CInt
-- pszUrl : LPCWSTR -> CWString
-- pszObjectOid : LPCSTR optional -> CString
-- dwRetrievalFlags : DWORD -> Word32
-- dwTimeout : DWORD -> Word32
-- ppvObject : void** out -> Ptr ()
-- hAsyncRetrieve : HCRYPTASYNC optional -> CIntPtr
-- pCredentials : CRYPT_CREDENTIALS* optional -> Ptr ()
-- pvVerify : void* optional -> Ptr ()
-- pAuxInfo : CRYPT_RETRIEVE_AUX_INFO* optional, in/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 cryptretrieveobjectbyurlw =
  foreign "CryptRetrieveObjectByUrlW"
    ((ptr uint16_t) @-> string @-> uint32_t @-> uint32_t @-> (ptr void) @-> intptr_t @-> (ptr void) @-> (ptr void) @-> (ptr void) @-> returning int32_t)
(* pszUrl : LPCWSTR -> (ptr uint16_t) *)
(* pszObjectOid : LPCSTR optional -> string *)
(* dwRetrievalFlags : DWORD -> uint32_t *)
(* dwTimeout : DWORD -> uint32_t *)
(* ppvObject : void** out -> (ptr void) *)
(* hAsyncRetrieve : HCRYPTASYNC optional -> intptr_t *)
(* pCredentials : CRYPT_CREDENTIALS* optional -> (ptr void) *)
(* pvVerify : void* optional -> (ptr void) *)
(* pAuxInfo : CRYPT_RETRIEVE_AUX_INFO* optional, in/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 cryptnet (t "CRYPTNET.dll"))
(cffi:use-foreign-library cryptnet)

(cffi:defcfun ("CryptRetrieveObjectByUrlW" crypt-retrieve-object-by-url-w :convention :stdcall) :int32
  (psz-url (:string :encoding :utf-16le))   ; LPCWSTR
  (psz-object-oid :string)   ; LPCSTR optional
  (dw-retrieval-flags :uint32)   ; DWORD
  (dw-timeout :uint32)   ; DWORD
  (ppv-object :pointer)   ; void** out
  (h-async-retrieve :int64)   ; HCRYPTASYNC optional
  (p-credentials :pointer)   ; CRYPT_CREDENTIALS* optional
  (pv-verify :pointer)   ; void* optional
  (p-aux-info :pointer))   ; CRYPT_RETRIEVE_AUX_INFO* optional, in/out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $CryptRetrieveObjectByUrlW = Win32::API::More->new('CRYPTNET',
    'BOOL CryptRetrieveObjectByUrlW(LPCWSTR pszUrl, LPCSTR pszObjectOid, DWORD dwRetrievalFlags, DWORD dwTimeout, LPVOID ppvObject, LPARAM hAsyncRetrieve, LPVOID pCredentials, LPVOID pvVerify, LPVOID pAuxInfo)');
# my $ret = $CryptRetrieveObjectByUrlW->Call($pszUrl, $pszObjectOid, $dwRetrievalFlags, $dwTimeout, $ppvObject, $hAsyncRetrieve, $pCredentials, $pvVerify, $pAuxInfo);
# pszUrl : LPCWSTR -> LPCWSTR
# pszObjectOid : LPCSTR optional -> LPCSTR
# dwRetrievalFlags : DWORD -> DWORD
# dwTimeout : DWORD -> DWORD
# ppvObject : void** out -> LPVOID
# hAsyncRetrieve : HCRYPTASYNC optional -> LPARAM
# pCredentials : CRYPT_CREDENTIALS* optional -> LPVOID
# pvVerify : void* optional -> LPVOID
# pAuxInfo : CRYPT_RETRIEVE_AUX_INFO* optional, 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。
# Unicode(-W): LPCWSTR/LPWSTR は Win32::API が UTF-16 変換を行う。