NCryptEnumKeys

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

HRESULT NCryptEnumKeys(
    NCRYPT_PROV_HANDLE hProvider,
    LPCWSTR pszScope,   // optional
    NCryptKeyName** ppKeyName,
    void** ppEnumState,
    NCRYPT_FLAGS dwFlags
);

<DllImport("ncrypt.dll", ExactSpelling:=True)>
Public Shared Function NCryptEnumKeys(
    hProvider As UIntPtr,   ' NCRYPT_PROV_HANDLE
    <MarshalAs(UnmanagedType.LPWStr)> pszScope As String,   ' LPCWSTR optional
    ppKeyName As IntPtr,   ' NCryptKeyName** out
    ppEnumState As IntPtr,   ' void** in/out
    dwFlags As UInteger   ' NCRYPT_FLAGS
) As Integer
End Function

' hProvider : NCRYPT_PROV_HANDLE
' pszScope : LPCWSTR optional
' ppKeyName : NCryptKeyName** out
' ppEnumState : void** in/out
' dwFlags : NCRYPT_FLAGS
Declare PtrSafe Function NCryptEnumKeys Lib "ncrypt" ( _
    ByVal hProvider As LongPtr, _
    ByVal pszScope As LongPtr, _
    ByVal ppKeyName As LongPtr, _
    ByVal ppEnumState As LongPtr, _
    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

NCryptEnumKeys = ctypes.windll.ncrypt.NCryptEnumKeys
NCryptEnumKeys.restype = ctypes.c_int
NCryptEnumKeys.argtypes = [
    ctypes.c_size_t,  # hProvider : NCRYPT_PROV_HANDLE
    wintypes.LPCWSTR,  # pszScope : LPCWSTR optional
    ctypes.c_void_p,  # ppKeyName : NCryptKeyName** out
    ctypes.c_void_p,  # ppEnumState : void** in/out
    wintypes.DWORD,  # dwFlags : NCRYPT_FLAGS
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ncrypt.dll')
NCryptEnumKeys = Fiddle::Function.new(
  lib['NCryptEnumKeys'],
  [
    Fiddle::TYPE_UINTPTR_T,  # hProvider : NCRYPT_PROV_HANDLE
    Fiddle::TYPE_VOIDP,  # pszScope : LPCWSTR optional
    Fiddle::TYPE_VOIDP,  # ppKeyName : NCryptKeyName** out
    Fiddle::TYPE_VOIDP,  # ppEnumState : void** in/out
    -Fiddle::TYPE_INT,  # dwFlags : NCRYPT_FLAGS
  ],
  Fiddle::TYPE_INT)

#[link(name = "ncrypt")]
extern "system" {
    fn NCryptEnumKeys(
        hProvider: usize,  // NCRYPT_PROV_HANDLE
        pszScope: *const u16,  // LPCWSTR optional
        ppKeyName: *mut *mut NCryptKeyName,  // NCryptKeyName** out
        ppEnumState: *mut *mut (),  // void** in/out
        dwFlags: u32  // NCRYPT_FLAGS
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("ncrypt.dll")]
public static extern int NCryptEnumKeys(UIntPtr hProvider, [MarshalAs(UnmanagedType.LPWStr)] string pszScope, IntPtr ppKeyName, IntPtr ppEnumState, uint dwFlags);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ncrypt_NCryptEnumKeys' -Namespace Win32 -PassThru
# $api::NCryptEnumKeys(hProvider, pszScope, ppKeyName, ppEnumState, dwFlags)

#uselib "ncrypt.dll"
#func global NCryptEnumKeys "NCryptEnumKeys" sptr, sptr, sptr, sptr, sptr
; NCryptEnumKeys hProvider, pszScope, varptr(ppKeyName), ppEnumState, dwFlags   ; 戻り値は stat
; hProvider : NCRYPT_PROV_HANDLE -> "sptr"
; pszScope : LPCWSTR optional -> "sptr"
; ppKeyName : NCryptKeyName** out -> "sptr"
; ppEnumState : void** in/out -> "sptr"
; dwFlags : NCRYPT_FLAGS -> "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")
	procNCryptEnumKeys = ncrypt.NewProc("NCryptEnumKeys")
)

// hProvider (NCRYPT_PROV_HANDLE), pszScope (LPCWSTR optional), ppKeyName (NCryptKeyName** out), ppEnumState (void** in/out), dwFlags (NCRYPT_FLAGS)
r1, _, err := procNCryptEnumKeys.Call(
	uintptr(hProvider),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pszScope))),
	uintptr(ppKeyName),
	uintptr(ppEnumState),
	uintptr(dwFlags),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function NCryptEnumKeys(
  hProvider: NativeUInt;   // NCRYPT_PROV_HANDLE
  pszScope: PWideChar;   // LPCWSTR optional
  ppKeyName: Pointer;   // NCryptKeyName** out
  ppEnumState: Pointer;   // void** in/out
  dwFlags: DWORD   // NCRYPT_FLAGS
): Integer; stdcall;
  external 'ncrypt.dll' name 'NCryptEnumKeys';

result := DllCall("ncrypt\NCryptEnumKeys"
    , "UPtr", hProvider   ; NCRYPT_PROV_HANDLE
    , "WStr", pszScope   ; LPCWSTR optional
    , "Ptr", ppKeyName   ; NCryptKeyName** out
    , "Ptr", ppEnumState   ; void** in/out
    , "UInt", dwFlags   ; NCRYPT_FLAGS
    , "Int")   ; return: HRESULT

●NCryptEnumKeys(hProvider, pszScope, ppKeyName, ppEnumState, dwFlags) = DLL("ncrypt.dll", "int NCryptEnumKeys(int, char*, void*, void*, dword)")
# 呼び出し: NCryptEnumKeys(hProvider, pszScope, ppKeyName, ppEnumState, dwFlags)
# hProvider : NCRYPT_PROV_HANDLE -> "int"
# pszScope : LPCWSTR optional -> "char*"
# ppKeyName : NCryptKeyName** out -> "void*"
# ppEnumState : void** in/out -> "void*"
# dwFlags : NCRYPT_FLAGS -> "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 NCryptEnumKeys(
    hProvider: usize, // NCRYPT_PROV_HANDLE
    pszScope: [*c]const u16, // LPCWSTR optional
    ppKeyName: [*c][*c]NCryptKeyName, // NCryptKeyName** out
    ppEnumState: ?*anyopaque, // void** in/out
    dwFlags: u32 // NCRYPT_FLAGS
) callconv(std.os.windows.WINAPI) i32;

proc NCryptEnumKeys(
    hProvider: uint,  # NCRYPT_PROV_HANDLE
    pszScope: WideCString,  # LPCWSTR optional
    ppKeyName: ptr NCryptKeyName,  # NCryptKeyName** out
    ppEnumState: pointer,  # void** in/out
    dwFlags: uint32  # NCRYPT_FLAGS
): int32 {.importc: "NCryptEnumKeys", stdcall, dynlib: "ncrypt.dll".}

pragma(lib, "ncrypt");
extern(Windows)
int NCryptEnumKeys(
    size_t hProvider,   // NCRYPT_PROV_HANDLE
    const(wchar)* pszScope,   // LPCWSTR optional
    NCryptKeyName** ppKeyName,   // NCryptKeyName** out
    void** ppEnumState,   // void** in/out
    uint dwFlags   // NCRYPT_FLAGS
);

ccall((:NCryptEnumKeys, "ncrypt.dll"), stdcall, Int32,
      (Csize_t, Cwstring, Ptr{NCryptKeyName}, Ptr{Cvoid}, UInt32),
      hProvider, pszScope, ppKeyName, ppEnumState, dwFlags)
# hProvider : NCRYPT_PROV_HANDLE -> Csize_t
# pszScope : LPCWSTR optional -> Cwstring
# ppKeyName : NCryptKeyName** out -> Ptr{NCryptKeyName}
# ppEnumState : void** in/out -> Ptr{Cvoid}
# dwFlags : NCRYPT_FLAGS -> UInt32
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t NCryptEnumKeys(
    uintptr_t hProvider,
    const uint16_t* pszScope,
    void* ppKeyName,
    void** ppEnumState,
    uint32_t dwFlags);
]]
local ncrypt = ffi.load("ncrypt")
-- ncrypt.NCryptEnumKeys(hProvider, pszScope, ppKeyName, ppEnumState, dwFlags)
-- hProvider : NCRYPT_PROV_HANDLE
-- pszScope : LPCWSTR optional
-- ppKeyName : NCryptKeyName** out
-- ppEnumState : void** in/out
-- dwFlags : NCRYPT_FLAGS
-- 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 NCryptEnumKeys = lib.func('__stdcall', 'NCryptEnumKeys', 'int32_t', ['uintptr_t', 'str16', 'void *', 'void *', 'uint32_t']);
// NCryptEnumKeys(hProvider, pszScope, ppKeyName, ppEnumState, dwFlags)
// hProvider : NCRYPT_PROV_HANDLE -> 'uintptr_t'
// pszScope : LPCWSTR optional -> 'str16'
// ppKeyName : NCryptKeyName** out -> 'void *'
// ppEnumState : void** in/out -> 'void *'
// dwFlags : NCRYPT_FLAGS -> '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", {
  NCryptEnumKeys: { parameters: ["usize", "buffer", "pointer", "pointer", "u32"], result: "i32" },
});
// lib.symbols.NCryptEnumKeys(hProvider, pszScope, ppKeyName, ppEnumState, dwFlags)
// hProvider : NCRYPT_PROV_HANDLE -> "usize"
// pszScope : LPCWSTR optional -> "buffer"
// ppKeyName : NCryptKeyName** out -> "pointer"
// ppEnumState : void** in/out -> "pointer"
// dwFlags : NCRYPT_FLAGS -> "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 NCryptEnumKeys(
    size_t hProvider,
    const uint16_t* pszScope,
    void* ppKeyName,
    void** ppEnumState,
    uint32_t dwFlags);
C, "ncrypt.dll");
// $ffi->NCryptEnumKeys(hProvider, pszScope, ppKeyName, ppEnumState, dwFlags);
// hProvider : NCRYPT_PROV_HANDLE
// pszScope : LPCWSTR optional
// ppKeyName : NCryptKeyName** out
// ppEnumState : void** in/out
// dwFlags : NCRYPT_FLAGS
// 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 NCryptEnumKeys(
        long hProvider,   // NCRYPT_PROV_HANDLE
        WString pszScope,   // LPCWSTR optional
        Pointer ppKeyName,   // NCryptKeyName** out
        Pointer ppEnumState,   // void** in/out
        int dwFlags   // NCRYPT_FLAGS
    );
}

@[Link("ncrypt")]
lib Libncrypt
  fun NCryptEnumKeys = NCryptEnumKeys(
    hProvider : LibC::SizeT,   # NCRYPT_PROV_HANDLE
    pszScope : UInt16*,   # LPCWSTR optional
    ppKeyName : NCryptKeyName**,   # NCryptKeyName** out
    ppEnumState : Void**,   # void** in/out
    dwFlags : UInt32   # NCRYPT_FLAGS
  ) : 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 NCryptEnumKeysNative = Int32 Function(UintPtr, Pointer<Utf16>, Pointer<Void>, Pointer<Void>, Uint32);
typedef NCryptEnumKeysDart = int Function(int, Pointer<Utf16>, Pointer<Void>, Pointer<Void>, int);
final NCryptEnumKeys = DynamicLibrary.open('ncrypt.dll')
    .lookupFunction<NCryptEnumKeysNative, NCryptEnumKeysDart>('NCryptEnumKeys');
// hProvider : NCRYPT_PROV_HANDLE -> UintPtr
// pszScope : LPCWSTR optional -> Pointer<Utf16>
// ppKeyName : NCryptKeyName** out -> Pointer<Void>
// ppEnumState : void** in/out -> Pointer<Void>
// dwFlags : NCRYPT_FLAGS -> Uint32
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function NCryptEnumKeys(
  hProvider: NativeUInt;   // NCRYPT_PROV_HANDLE
  pszScope: PWideChar;   // LPCWSTR optional
  ppKeyName: Pointer;   // NCryptKeyName** out
  ppEnumState: Pointer;   // void** in/out
  dwFlags: DWORD   // NCRYPT_FLAGS
): Integer; stdcall;
  external 'ncrypt.dll' name 'NCryptEnumKeys';

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

foreign import stdcall safe "NCryptEnumKeys"
  c_NCryptEnumKeys :: CUIntPtr -> CWString -> Ptr () -> Ptr () -> Word32 -> IO Int32
-- hProvider : NCRYPT_PROV_HANDLE -> CUIntPtr
-- pszScope : LPCWSTR optional -> CWString
-- ppKeyName : NCryptKeyName** out -> Ptr ()
-- ppEnumState : void** in/out -> Ptr ()
-- dwFlags : NCRYPT_FLAGS -> 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 ncryptenumkeys =
  foreign "NCryptEnumKeys"
    (size_t @-> (ptr uint16_t) @-> (ptr void) @-> (ptr void) @-> uint32_t @-> returning int32_t)
(* hProvider : NCRYPT_PROV_HANDLE -> size_t *)
(* pszScope : LPCWSTR optional -> (ptr uint16_t) *)
(* ppKeyName : NCryptKeyName** out -> (ptr void) *)
(* ppEnumState : void** in/out -> (ptr void) *)
(* dwFlags : NCRYPT_FLAGS -> 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 ("NCryptEnumKeys" ncrypt-enum-keys :convention :stdcall) :int32
  (h-provider :uint64)   ; NCRYPT_PROV_HANDLE
  (psz-scope (:string :encoding :utf-16le))   ; LPCWSTR optional
  (pp-key-name :pointer)   ; NCryptKeyName** out
  (pp-enum-state :pointer)   ; void** in/out
  (dw-flags :uint32))   ; NCRYPT_FLAGS
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $NCryptEnumKeys = Win32::API::More->new('ncrypt',
    'int NCryptEnumKeys(WPARAM hProvider, LPCWSTR pszScope, LPVOID ppKeyName, LPVOID ppEnumState, DWORD dwFlags)');
# my $ret = $NCryptEnumKeys->Call($hProvider, $pszScope, $ppKeyName, $ppEnumState, $dwFlags);
# hProvider : NCRYPT_PROV_HANDLE -> WPARAM
# pszScope : LPCWSTR optional -> LPCWSTR
# ppKeyName : NCryptKeyName** out -> LPVOID
# ppEnumState : void** in/out -> LPVOID
# dwFlags : NCRYPT_FLAGS -> DWORD
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。