SslGetKeyProperty

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

HRESULT SslGetKeyProperty(
    NCRYPT_KEY_HANDLE hKey,
    LPCWSTR pszProperty,
    BYTE** ppbOutput,
    DWORD* pcbOutput,
    DWORD dwFlags
);

<DllImport("ncrypt.dll", ExactSpelling:=True)>
Public Shared Function SslGetKeyProperty(
    hKey As UIntPtr,   ' NCRYPT_KEY_HANDLE
    <MarshalAs(UnmanagedType.LPWStr)> pszProperty As String,   ' LPCWSTR
    ppbOutput As IntPtr,   ' BYTE** out
    <Out> ByRef pcbOutput As UInteger,   ' DWORD* out
    dwFlags As UInteger   ' DWORD
) As Integer
End Function

' hKey : NCRYPT_KEY_HANDLE
' pszProperty : LPCWSTR
' ppbOutput : BYTE** out
' pcbOutput : DWORD* out
' dwFlags : DWORD
Declare PtrSafe Function SslGetKeyProperty Lib "ncrypt" ( _
    ByVal hKey As LongPtr, _
    ByVal pszProperty As LongPtr, _
    ByVal ppbOutput As LongPtr, _
    ByRef pcbOutput As Long, _
    ByVal dwFlags 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

SslGetKeyProperty = ctypes.windll.ncrypt.SslGetKeyProperty
SslGetKeyProperty.restype = ctypes.c_int
SslGetKeyProperty.argtypes = [
    ctypes.c_size_t,  # hKey : NCRYPT_KEY_HANDLE
    wintypes.LPCWSTR,  # pszProperty : LPCWSTR
    ctypes.c_void_p,  # ppbOutput : BYTE** out
    ctypes.POINTER(wintypes.DWORD),  # pcbOutput : DWORD* out
    wintypes.DWORD,  # dwFlags : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ncrypt.dll')
SslGetKeyProperty = Fiddle::Function.new(
  lib['SslGetKeyProperty'],
  [
    Fiddle::TYPE_UINTPTR_T,  # hKey : NCRYPT_KEY_HANDLE
    Fiddle::TYPE_VOIDP,  # pszProperty : LPCWSTR
    Fiddle::TYPE_VOIDP,  # ppbOutput : BYTE** out
    Fiddle::TYPE_VOIDP,  # pcbOutput : DWORD* out
    -Fiddle::TYPE_INT,  # dwFlags : DWORD
  ],
  Fiddle::TYPE_INT)

#[link(name = "ncrypt")]
extern "system" {
    fn SslGetKeyProperty(
        hKey: usize,  // NCRYPT_KEY_HANDLE
        pszProperty: *const u16,  // LPCWSTR
        ppbOutput: *mut *mut u8,  // BYTE** out
        pcbOutput: *mut u32,  // DWORD* out
        dwFlags: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("ncrypt.dll")]
public static extern int SslGetKeyProperty(UIntPtr hKey, [MarshalAs(UnmanagedType.LPWStr)] string pszProperty, IntPtr ppbOutput, out uint pcbOutput, uint dwFlags);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ncrypt_SslGetKeyProperty' -Namespace Win32 -PassThru
# $api::SslGetKeyProperty(hKey, pszProperty, ppbOutput, pcbOutput, dwFlags)

#uselib "ncrypt.dll"
#func global SslGetKeyProperty "SslGetKeyProperty" sptr, sptr, sptr, sptr, sptr
; SslGetKeyProperty hKey, pszProperty, varptr(ppbOutput), varptr(pcbOutput), dwFlags   ; 戻り値は stat
; hKey : NCRYPT_KEY_HANDLE -> "sptr"
; pszProperty : LPCWSTR -> "sptr"
; ppbOutput : BYTE** out -> "sptr"
; pcbOutput : DWORD* out -> "sptr"
; dwFlags : 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 (
	ncrypt = windows.NewLazySystemDLL("ncrypt.dll")
	procSslGetKeyProperty = ncrypt.NewProc("SslGetKeyProperty")
)

// hKey (NCRYPT_KEY_HANDLE), pszProperty (LPCWSTR), ppbOutput (BYTE** out), pcbOutput (DWORD* out), dwFlags (DWORD)
r1, _, err := procSslGetKeyProperty.Call(
	uintptr(hKey),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pszProperty))),
	uintptr(ppbOutput),
	uintptr(pcbOutput),
	uintptr(dwFlags),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function SslGetKeyProperty(
  hKey: NativeUInt;   // NCRYPT_KEY_HANDLE
  pszProperty: PWideChar;   // LPCWSTR
  ppbOutput: Pointer;   // BYTE** out
  pcbOutput: Pointer;   // DWORD* out
  dwFlags: DWORD   // DWORD
): Integer; stdcall;
  external 'ncrypt.dll' name 'SslGetKeyProperty';

result := DllCall("ncrypt\SslGetKeyProperty"
    , "UPtr", hKey   ; NCRYPT_KEY_HANDLE
    , "WStr", pszProperty   ; LPCWSTR
    , "Ptr", ppbOutput   ; BYTE** out
    , "Ptr", pcbOutput   ; DWORD* out
    , "UInt", dwFlags   ; DWORD
    , "Int")   ; return: HRESULT

●SslGetKeyProperty(hKey, pszProperty, ppbOutput, pcbOutput, dwFlags) = DLL("ncrypt.dll", "int SslGetKeyProperty(int, char*, void*, void*, dword)")
# 呼び出し: SslGetKeyProperty(hKey, pszProperty, ppbOutput, pcbOutput, dwFlags)
# hKey : NCRYPT_KEY_HANDLE -> "int"
# pszProperty : LPCWSTR -> "char*"
# ppbOutput : BYTE** out -> "void*"
# pcbOutput : DWORD* out -> "void*"
# dwFlags : 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 "ncrypt" fn SslGetKeyProperty(
    hKey: usize, // NCRYPT_KEY_HANDLE
    pszProperty: [*c]const u16, // LPCWSTR
    ppbOutput: [*c][*c]u8, // BYTE** out
    pcbOutput: [*c]u32, // DWORD* out
    dwFlags: u32 // DWORD
) callconv(std.os.windows.WINAPI) i32;

proc SslGetKeyProperty(
    hKey: uint,  # NCRYPT_KEY_HANDLE
    pszProperty: WideCString,  # LPCWSTR
    ppbOutput: ptr uint8,  # BYTE** out
    pcbOutput: ptr uint32,  # DWORD* out
    dwFlags: uint32  # DWORD
): int32 {.importc: "SslGetKeyProperty", stdcall, dynlib: "ncrypt.dll".}

pragma(lib, "ncrypt");
extern(Windows)
int SslGetKeyProperty(
    size_t hKey,   // NCRYPT_KEY_HANDLE
    const(wchar)* pszProperty,   // LPCWSTR
    ubyte** ppbOutput,   // BYTE** out
    uint* pcbOutput,   // DWORD* out
    uint dwFlags   // DWORD
);

ccall((:SslGetKeyProperty, "ncrypt.dll"), stdcall, Int32,
      (Csize_t, Cwstring, Ptr{UInt8}, Ptr{UInt32}, UInt32),
      hKey, pszProperty, ppbOutput, pcbOutput, dwFlags)
# hKey : NCRYPT_KEY_HANDLE -> Csize_t
# pszProperty : LPCWSTR -> Cwstring
# ppbOutput : BYTE** out -> Ptr{UInt8}
# pcbOutput : DWORD* out -> Ptr{UInt32}
# dwFlags : 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 SslGetKeyProperty(
    uintptr_t hKey,
    const uint16_t* pszProperty,
    uint8_t** ppbOutput,
    uint32_t* pcbOutput,
    uint32_t dwFlags);
]]
local ncrypt = ffi.load("ncrypt")
-- ncrypt.SslGetKeyProperty(hKey, pszProperty, ppbOutput, pcbOutput, dwFlags)
-- hKey : NCRYPT_KEY_HANDLE
-- pszProperty : LPCWSTR
-- ppbOutput : BYTE** out
-- pcbOutput : DWORD* out
-- dwFlags : 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('ncrypt.dll');
const SslGetKeyProperty = lib.func('__stdcall', 'SslGetKeyProperty', 'int32_t', ['uintptr_t', 'str16', 'uint8_t *', 'uint32_t *', 'uint32_t']);
// SslGetKeyProperty(hKey, pszProperty, ppbOutput, pcbOutput, dwFlags)
// hKey : NCRYPT_KEY_HANDLE -> 'uintptr_t'
// pszProperty : LPCWSTR -> 'str16'
// ppbOutput : BYTE** out -> 'uint8_t *'
// pcbOutput : DWORD* out -> 'uint32_t *'
// dwFlags : 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("ncrypt.dll", {
  SslGetKeyProperty: { parameters: ["usize", "buffer", "pointer", "pointer", "u32"], result: "i32" },
});
// lib.symbols.SslGetKeyProperty(hKey, pszProperty, ppbOutput, pcbOutput, dwFlags)
// hKey : NCRYPT_KEY_HANDLE -> "usize"
// pszProperty : LPCWSTR -> "buffer"
// ppbOutput : BYTE** out -> "pointer"
// pcbOutput : DWORD* out -> "pointer"
// dwFlags : 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 SslGetKeyProperty(
    size_t hKey,
    const uint16_t* pszProperty,
    uint8_t** ppbOutput,
    uint32_t* pcbOutput,
    uint32_t dwFlags);
C, "ncrypt.dll");
// $ffi->SslGetKeyProperty(hKey, pszProperty, ppbOutput, pcbOutput, dwFlags);
// hKey : NCRYPT_KEY_HANDLE
// pszProperty : LPCWSTR
// ppbOutput : BYTE** out
// pcbOutput : DWORD* out
// dwFlags : 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 Ncrypt extends StdCallLibrary {
    Ncrypt INSTANCE = Native.load("ncrypt", Ncrypt.class);
    int SslGetKeyProperty(
        long hKey,   // NCRYPT_KEY_HANDLE
        WString pszProperty,   // LPCWSTR
        Pointer ppbOutput,   // BYTE** out
        IntByReference pcbOutput,   // DWORD* out
        int dwFlags   // DWORD
    );
}

@[Link("ncrypt")]
lib Libncrypt
  fun SslGetKeyProperty = SslGetKeyProperty(
    hKey : LibC::SizeT,   # NCRYPT_KEY_HANDLE
    pszProperty : UInt16*,   # LPCWSTR
    ppbOutput : UInt8**,   # BYTE** out
    pcbOutput : UInt32*,   # DWORD* out
    dwFlags : 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 SslGetKeyPropertyNative = Int32 Function(UintPtr, Pointer<Utf16>, Pointer<Uint8>, Pointer<Uint32>, Uint32);
typedef SslGetKeyPropertyDart = int Function(int, Pointer<Utf16>, Pointer<Uint8>, Pointer<Uint32>, int);
final SslGetKeyProperty = DynamicLibrary.open('ncrypt.dll')
    .lookupFunction<SslGetKeyPropertyNative, SslGetKeyPropertyDart>('SslGetKeyProperty');
// hKey : NCRYPT_KEY_HANDLE -> UintPtr
// pszProperty : LPCWSTR -> Pointer<Utf16>
// ppbOutput : BYTE** out -> Pointer<Uint8>
// pcbOutput : DWORD* out -> Pointer<Uint32>
// dwFlags : DWORD -> Uint32
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function SslGetKeyProperty(
  hKey: NativeUInt;   // NCRYPT_KEY_HANDLE
  pszProperty: PWideChar;   // LPCWSTR
  ppbOutput: Pointer;   // BYTE** out
  pcbOutput: Pointer;   // DWORD* out
  dwFlags: DWORD   // DWORD
): Integer; stdcall;
  external 'ncrypt.dll' name 'SslGetKeyProperty';

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

foreign import stdcall safe "SslGetKeyProperty"
  c_SslGetKeyProperty :: CUIntPtr -> CWString -> Ptr Word8 -> Ptr Word32 -> Word32 -> IO Int32
-- hKey : NCRYPT_KEY_HANDLE -> CUIntPtr
-- pszProperty : LPCWSTR -> CWString
-- ppbOutput : BYTE** out -> Ptr Word8
-- pcbOutput : DWORD* out -> Ptr Word32
-- dwFlags : 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 sslgetkeyproperty =
  foreign "SslGetKeyProperty"
    (size_t @-> (ptr uint16_t) @-> (ptr uint8_t) @-> (ptr uint32_t) @-> uint32_t @-> returning int32_t)
(* hKey : NCRYPT_KEY_HANDLE -> size_t *)
(* pszProperty : LPCWSTR -> (ptr uint16_t) *)
(* ppbOutput : BYTE** out -> (ptr uint8_t) *)
(* pcbOutput : DWORD* out -> (ptr uint32_t) *)
(* dwFlags : 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 ncrypt (t "ncrypt.dll"))
(cffi:use-foreign-library ncrypt)

(cffi:defcfun ("SslGetKeyProperty" ssl-get-key-property :convention :stdcall) :int32
  (h-key :uint64)   ; NCRYPT_KEY_HANDLE
  (psz-property (:string :encoding :utf-16le))   ; LPCWSTR
  (ppb-output :pointer)   ; BYTE** out
  (pcb-output :pointer)   ; DWORD* out
  (dw-flags :uint32))   ; DWORD
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $SslGetKeyProperty = Win32::API::More->new('ncrypt',
    'int SslGetKeyProperty(WPARAM hKey, LPCWSTR pszProperty, LPVOID ppbOutput, LPVOID pcbOutput, DWORD dwFlags)');
# my $ret = $SslGetKeyProperty->Call($hKey, $pszProperty, $ppbOutput, $pcbOutput, $dwFlags);
# hKey : NCRYPT_KEY_HANDLE -> WPARAM
# pszProperty : LPCWSTR -> LPCWSTR
# ppbOutput : BYTE** out -> LPVOID
# pcbOutput : DWORD* out -> LPVOID
# dwFlags : DWORD -> DWORD
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。