RasGetEapUserIdentityA

// RASAPI32.dll  (ANSI / -A)
#include <windows.h>

DWORD RasGetEapUserIdentityA(
    LPCSTR pszPhonebook,   // optional
    LPCSTR pszEntry,
    DWORD dwFlags,
    HWND hwnd,
    RASEAPUSERIDENTITYA** ppRasEapUserIdentity
);

<DllImport("RASAPI32.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function RasGetEapUserIdentityA(
    <MarshalAs(UnmanagedType.LPStr)> pszPhonebook As String,   ' LPCSTR optional
    <MarshalAs(UnmanagedType.LPStr)> pszEntry As String,   ' LPCSTR
    dwFlags As UInteger,   ' DWORD
    hwnd As IntPtr,   ' HWND
    ppRasEapUserIdentity As IntPtr   ' RASEAPUSERIDENTITYA** out
) As UInteger
End Function

' pszPhonebook : LPCSTR optional
' pszEntry : LPCSTR
' dwFlags : DWORD
' hwnd : HWND
' ppRasEapUserIdentity : RASEAPUSERIDENTITYA** out
Declare PtrSafe Function RasGetEapUserIdentityA Lib "rasapi32" ( _
    ByVal pszPhonebook As String, _
    ByVal pszEntry As String, _
    ByVal dwFlags As Long, _
    ByVal hwnd As LongPtr, _
    ByVal ppRasEapUserIdentity 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

RasGetEapUserIdentityA = ctypes.windll.rasapi32.RasGetEapUserIdentityA
RasGetEapUserIdentityA.restype = wintypes.DWORD
RasGetEapUserIdentityA.argtypes = [
    wintypes.LPCSTR,  # pszPhonebook : LPCSTR optional
    wintypes.LPCSTR,  # pszEntry : LPCSTR
    wintypes.DWORD,  # dwFlags : DWORD
    wintypes.HANDLE,  # hwnd : HWND
    ctypes.c_void_p,  # ppRasEapUserIdentity : RASEAPUSERIDENTITYA** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('RASAPI32.dll')
RasGetEapUserIdentityA = Fiddle::Function.new(
  lib['RasGetEapUserIdentityA'],
  [
    Fiddle::TYPE_VOIDP,  # pszPhonebook : LPCSTR optional
    Fiddle::TYPE_VOIDP,  # pszEntry : LPCSTR
    -Fiddle::TYPE_INT,  # dwFlags : DWORD
    Fiddle::TYPE_VOIDP,  # hwnd : HWND
    Fiddle::TYPE_VOIDP,  # ppRasEapUserIdentity : RASEAPUSERIDENTITYA** out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "rasapi32")]
extern "system" {
    fn RasGetEapUserIdentityA(
        pszPhonebook: *const u8,  // LPCSTR optional
        pszEntry: *const u8,  // LPCSTR
        dwFlags: u32,  // DWORD
        hwnd: *mut core::ffi::c_void,  // HWND
        ppRasEapUserIdentity: *mut *mut RASEAPUSERIDENTITYA  // RASEAPUSERIDENTITYA** out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("RASAPI32.dll", CharSet = CharSet.Ansi)]
public static extern uint RasGetEapUserIdentityA([MarshalAs(UnmanagedType.LPStr)] string pszPhonebook, [MarshalAs(UnmanagedType.LPStr)] string pszEntry, uint dwFlags, IntPtr hwnd, IntPtr ppRasEapUserIdentity);
"@
$api = Add-Type -MemberDefinition $sig -Name 'RASAPI32_RasGetEapUserIdentityA' -Namespace Win32 -PassThru
# $api::RasGetEapUserIdentityA(pszPhonebook, pszEntry, dwFlags, hwnd, ppRasEapUserIdentity)

#uselib "RASAPI32.dll"
#func global RasGetEapUserIdentityA "RasGetEapUserIdentityA" sptr, sptr, sptr, sptr, sptr
; RasGetEapUserIdentityA pszPhonebook, pszEntry, dwFlags, hwnd, varptr(ppRasEapUserIdentity)   ; 戻り値は stat
; pszPhonebook : LPCSTR optional -> "sptr"
; pszEntry : LPCSTR -> "sptr"
; dwFlags : DWORD -> "sptr"
; hwnd : HWND -> "sptr"
; ppRasEapUserIdentity : RASEAPUSERIDENTITYA** 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 (
	rasapi32 = windows.NewLazySystemDLL("RASAPI32.dll")
	procRasGetEapUserIdentityA = rasapi32.NewProc("RasGetEapUserIdentityA")
)

// pszPhonebook (LPCSTR optional), pszEntry (LPCSTR), dwFlags (DWORD), hwnd (HWND), ppRasEapUserIdentity (RASEAPUSERIDENTITYA** out)
r1, _, err := procRasGetEapUserIdentityA.Call(
	uintptr(unsafe.Pointer(windows.BytePtrFromString(pszPhonebook))),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(pszEntry))),
	uintptr(dwFlags),
	uintptr(hwnd),
	uintptr(ppRasEapUserIdentity),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function RasGetEapUserIdentityA(
  pszPhonebook: PAnsiChar;   // LPCSTR optional
  pszEntry: PAnsiChar;   // LPCSTR
  dwFlags: DWORD;   // DWORD
  hwnd: THandle;   // HWND
  ppRasEapUserIdentity: Pointer   // RASEAPUSERIDENTITYA** out
): DWORD; stdcall;
  external 'RASAPI32.dll' name 'RasGetEapUserIdentityA';

result := DllCall("RASAPI32\RasGetEapUserIdentityA"
    , "AStr", pszPhonebook   ; LPCSTR optional
    , "AStr", pszEntry   ; LPCSTR
    , "UInt", dwFlags   ; DWORD
    , "Ptr", hwnd   ; HWND
    , "Ptr", ppRasEapUserIdentity   ; RASEAPUSERIDENTITYA** out
    , "UInt")   ; return: DWORD

●RasGetEapUserIdentityA(pszPhonebook, pszEntry, dwFlags, hwnd, ppRasEapUserIdentity) = DLL("RASAPI32.dll", "dword RasGetEapUserIdentityA(char*, char*, dword, void*, void*)")
# 呼び出し: RasGetEapUserIdentityA(pszPhonebook, pszEntry, dwFlags, hwnd, ppRasEapUserIdentity)
# pszPhonebook : LPCSTR optional -> "char*"
# pszEntry : LPCSTR -> "char*"
# dwFlags : DWORD -> "dword"
# hwnd : HWND -> "void*"
# ppRasEapUserIdentity : RASEAPUSERIDENTITYA** 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 "rasapi32" fn RasGetEapUserIdentityA(
    pszPhonebook: [*c]const u8, // LPCSTR optional
    pszEntry: [*c]const u8, // LPCSTR
    dwFlags: u32, // DWORD
    hwnd: ?*anyopaque, // HWND
    ppRasEapUserIdentity: [*c][*c]RASEAPUSERIDENTITYA // RASEAPUSERIDENTITYA** out
) callconv(std.os.windows.WINAPI) u32;

proc RasGetEapUserIdentityA(
    pszPhonebook: cstring,  # LPCSTR optional
    pszEntry: cstring,  # LPCSTR
    dwFlags: uint32,  # DWORD
    hwnd: pointer,  # HWND
    ppRasEapUserIdentity: ptr RASEAPUSERIDENTITYA  # RASEAPUSERIDENTITYA** out
): uint32 {.importc: "RasGetEapUserIdentityA", stdcall, dynlib: "RASAPI32.dll".}

pragma(lib, "rasapi32");
extern(Windows)
uint RasGetEapUserIdentityA(
    const(char)* pszPhonebook,   // LPCSTR optional
    const(char)* pszEntry,   // LPCSTR
    uint dwFlags,   // DWORD
    void* hwnd,   // HWND
    RASEAPUSERIDENTITYA** ppRasEapUserIdentity   // RASEAPUSERIDENTITYA** out
);

ccall((:RasGetEapUserIdentityA, "RASAPI32.dll"), stdcall, UInt32,
      (Cstring, Cstring, UInt32, Ptr{Cvoid}, Ptr{RASEAPUSERIDENTITYA}),
      pszPhonebook, pszEntry, dwFlags, hwnd, ppRasEapUserIdentity)
# pszPhonebook : LPCSTR optional -> Cstring
# pszEntry : LPCSTR -> Cstring
# dwFlags : DWORD -> UInt32
# hwnd : HWND -> Ptr{Cvoid}
# ppRasEapUserIdentity : RASEAPUSERIDENTITYA** out -> Ptr{RASEAPUSERIDENTITYA}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
uint32_t RasGetEapUserIdentityA(
    const char* pszPhonebook,
    const char* pszEntry,
    uint32_t dwFlags,
    void* hwnd,
    void* ppRasEapUserIdentity);
]]
local rasapi32 = ffi.load("rasapi32")
-- rasapi32.RasGetEapUserIdentityA(pszPhonebook, pszEntry, dwFlags, hwnd, ppRasEapUserIdentity)
-- pszPhonebook : LPCSTR optional
-- pszEntry : LPCSTR
-- dwFlags : DWORD
-- hwnd : HWND
-- ppRasEapUserIdentity : RASEAPUSERIDENTITYA** 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('RASAPI32.dll');
const RasGetEapUserIdentityA = lib.func('__stdcall', 'RasGetEapUserIdentityA', 'uint32_t', ['str', 'str', 'uint32_t', 'void *', 'void *']);
// RasGetEapUserIdentityA(pszPhonebook, pszEntry, dwFlags, hwnd, ppRasEapUserIdentity)
// pszPhonebook : LPCSTR optional -> 'str'
// pszEntry : LPCSTR -> 'str'
// dwFlags : DWORD -> 'uint32_t'
// hwnd : HWND -> 'void *'
// ppRasEapUserIdentity : RASEAPUSERIDENTITYA** 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("RASAPI32.dll", {
  RasGetEapUserIdentityA: { parameters: ["buffer", "buffer", "u32", "pointer", "pointer"], result: "u32" },
});
// lib.symbols.RasGetEapUserIdentityA(pszPhonebook, pszEntry, dwFlags, hwnd, ppRasEapUserIdentity)
// pszPhonebook : LPCSTR optional -> "buffer"
// pszEntry : LPCSTR -> "buffer"
// dwFlags : DWORD -> "u32"
// hwnd : HWND -> "pointer"
// ppRasEapUserIdentity : RASEAPUSERIDENTITYA** out -> "pointer"
// 文字列は "buffer"。ANSI(-A) は new TextEncoder() で UTF-8/ANSI バイト列(末尾に \x00)を渡す。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。

<?php
$ffi = FFI::cdef(<<<C
uint32_t RasGetEapUserIdentityA(
    const char* pszPhonebook,
    const char* pszEntry,
    uint32_t dwFlags,
    void* hwnd,
    void* ppRasEapUserIdentity);
C, "RASAPI32.dll");
// $ffi->RasGetEapUserIdentityA(pszPhonebook, pszEntry, dwFlags, hwnd, ppRasEapUserIdentity);
// pszPhonebook : LPCSTR optional
// pszEntry : LPCSTR
// dwFlags : DWORD
// hwnd : HWND
// ppRasEapUserIdentity : RASEAPUSERIDENTITYA** 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 Rasapi32 extends StdCallLibrary {
    Rasapi32 INSTANCE = Native.load("rasapi32", Rasapi32.class, W32APIOptions.ASCII_OPTIONS);
    int RasGetEapUserIdentityA(
        String pszPhonebook,   // LPCSTR optional
        String pszEntry,   // LPCSTR
        int dwFlags,   // DWORD
        Pointer hwnd,   // HWND
        Pointer ppRasEapUserIdentity   // RASEAPUSERIDENTITYA** out
    );
}

@[Link("rasapi32")]
lib LibRASAPI32
  fun RasGetEapUserIdentityA = RasGetEapUserIdentityA(
    pszPhonebook : UInt8*,   # LPCSTR optional
    pszEntry : UInt8*,   # LPCSTR
    dwFlags : UInt32,   # DWORD
    hwnd : Void*,   # HWND
    ppRasEapUserIdentity : RASEAPUSERIDENTITYA**   # RASEAPUSERIDENTITYA** out
  ) : UInt32
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 RasGetEapUserIdentityANative = Uint32 Function(Pointer<Utf8>, Pointer<Utf8>, Uint32, Pointer<Void>, Pointer<Void>);
typedef RasGetEapUserIdentityADart = int Function(Pointer<Utf8>, Pointer<Utf8>, int, Pointer<Void>, Pointer<Void>);
final RasGetEapUserIdentityA = DynamicLibrary.open('RASAPI32.dll')
    .lookupFunction<RasGetEapUserIdentityANative, RasGetEapUserIdentityADart>('RasGetEapUserIdentityA');
// pszPhonebook : LPCSTR optional -> Pointer<Utf8>
// pszEntry : LPCSTR -> Pointer<Utf8>
// dwFlags : DWORD -> Uint32
// hwnd : HWND -> Pointer<Void>
// ppRasEapUserIdentity : RASEAPUSERIDENTITYA** out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function RasGetEapUserIdentityA(
  pszPhonebook: PAnsiChar;   // LPCSTR optional
  pszEntry: PAnsiChar;   // LPCSTR
  dwFlags: DWORD;   // DWORD
  hwnd: THandle;   // HWND
  ppRasEapUserIdentity: Pointer   // RASEAPUSERIDENTITYA** out
): DWORD; stdcall;
  external 'RASAPI32.dll' name 'RasGetEapUserIdentityA';

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

foreign import stdcall safe "RasGetEapUserIdentityA"
  c_RasGetEapUserIdentityA :: CString -> CString -> Word32 -> Ptr () -> Ptr () -> IO Word32
-- pszPhonebook : LPCSTR optional -> CString
-- pszEntry : LPCSTR -> CString
-- dwFlags : DWORD -> Word32
-- hwnd : HWND -> Ptr ()
-- ppRasEapUserIdentity : RASEAPUSERIDENTITYA** 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 rasgeteapuseridentitya =
  foreign "RasGetEapUserIdentityA"
    (string @-> string @-> uint32_t @-> (ptr void) @-> (ptr void) @-> returning uint32_t)
(* pszPhonebook : LPCSTR optional -> string *)
(* pszEntry : LPCSTR -> string *)
(* dwFlags : DWORD -> uint32_t *)
(* hwnd : HWND -> (ptr void) *)
(* ppRasEapUserIdentity : RASEAPUSERIDENTITYA** 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 rasapi32 (t "RASAPI32.dll"))
(cffi:use-foreign-library rasapi32)

(cffi:defcfun ("RasGetEapUserIdentityA" ras-get-eap-user-identity-a :convention :stdcall) :uint32
  (psz-phonebook :string)   ; LPCSTR optional
  (psz-entry :string)   ; LPCSTR
  (dw-flags :uint32)   ; DWORD
  (hwnd :pointer)   ; HWND
  (pp-ras-eap-user-identity :pointer))   ; RASEAPUSERIDENTITYA** out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $RasGetEapUserIdentityA = Win32::API::More->new('RASAPI32',
    'DWORD RasGetEapUserIdentityA(LPCSTR pszPhonebook, LPCSTR pszEntry, DWORD dwFlags, HANDLE hwnd, LPVOID ppRasEapUserIdentity)');
# my $ret = $RasGetEapUserIdentityA->Call($pszPhonebook, $pszEntry, $dwFlags, $hwnd, $ppRasEapUserIdentity);
# pszPhonebook : LPCSTR optional -> LPCSTR
# pszEntry : LPCSTR -> LPCSTR
# dwFlags : DWORD -> DWORD
# hwnd : HWND -> HANDLE
# ppRasEapUserIdentity : RASEAPUSERIDENTITYA** out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。