RasGetCredentialsA

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

DWORD RasGetCredentialsA(
    LPCSTR param0,   // optional
    LPCSTR param1,
    RASCREDENTIALSA* param2
);

<DllImport("RASAPI32.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function RasGetCredentialsA(
    <MarshalAs(UnmanagedType.LPStr)> param0 As String,   ' LPCSTR optional
    <MarshalAs(UnmanagedType.LPStr)> param1 As String,   ' LPCSTR
    param2 As IntPtr   ' RASCREDENTIALSA* in/out
) As UInteger
End Function

' param0 : LPCSTR optional
' param1 : LPCSTR
' param2 : RASCREDENTIALSA* in/out
Declare PtrSafe Function RasGetCredentialsA Lib "rasapi32" ( _
    ByVal param0 As String, _
    ByVal param1 As String, _
    ByVal param2 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

RasGetCredentialsA = ctypes.windll.rasapi32.RasGetCredentialsA
RasGetCredentialsA.restype = wintypes.DWORD
RasGetCredentialsA.argtypes = [
    wintypes.LPCSTR,  # param0 : LPCSTR optional
    wintypes.LPCSTR,  # param1 : LPCSTR
    ctypes.c_void_p,  # param2 : RASCREDENTIALSA* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('RASAPI32.dll')
RasGetCredentialsA = Fiddle::Function.new(
  lib['RasGetCredentialsA'],
  [
    Fiddle::TYPE_VOIDP,  # param0 : LPCSTR optional
    Fiddle::TYPE_VOIDP,  # param1 : LPCSTR
    Fiddle::TYPE_VOIDP,  # param2 : RASCREDENTIALSA* in/out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "rasapi32")]
extern "system" {
    fn RasGetCredentialsA(
        param0: *const u8,  // LPCSTR optional
        param1: *const u8,  // LPCSTR
        param2: *mut RASCREDENTIALSA  // RASCREDENTIALSA* in/out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("RASAPI32.dll", CharSet = CharSet.Ansi)]
public static extern uint RasGetCredentialsA([MarshalAs(UnmanagedType.LPStr)] string param0, [MarshalAs(UnmanagedType.LPStr)] string param1, IntPtr param2);
"@
$api = Add-Type -MemberDefinition $sig -Name 'RASAPI32_RasGetCredentialsA' -Namespace Win32 -PassThru
# $api::RasGetCredentialsA(param0, param1, param2)

#uselib "RASAPI32.dll"
#func global RasGetCredentialsA "RasGetCredentialsA" sptr, sptr, sptr
; RasGetCredentialsA param0, param1, varptr(param2)   ; 戻り値は stat
; param0 : LPCSTR optional -> "sptr"
; param1 : LPCSTR -> "sptr"
; param2 : RASCREDENTIALSA* in/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")
	procRasGetCredentialsA = rasapi32.NewProc("RasGetCredentialsA")
)

// param0 (LPCSTR optional), param1 (LPCSTR), param2 (RASCREDENTIALSA* in/out)
r1, _, err := procRasGetCredentialsA.Call(
	uintptr(unsafe.Pointer(windows.BytePtrFromString(param0))),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(param1))),
	uintptr(param2),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function RasGetCredentialsA(
  param0: PAnsiChar;   // LPCSTR optional
  param1: PAnsiChar;   // LPCSTR
  param2: Pointer   // RASCREDENTIALSA* in/out
): DWORD; stdcall;
  external 'RASAPI32.dll' name 'RasGetCredentialsA';

result := DllCall("RASAPI32\RasGetCredentialsA"
    , "AStr", param0   ; LPCSTR optional
    , "AStr", param1   ; LPCSTR
    , "Ptr", param2   ; RASCREDENTIALSA* in/out
    , "UInt")   ; return: DWORD

●RasGetCredentialsA(param0, param1, param2) = DLL("RASAPI32.dll", "dword RasGetCredentialsA(char*, char*, void*)")
# 呼び出し: RasGetCredentialsA(param0, param1, param2)
# param0 : LPCSTR optional -> "char*"
# param1 : LPCSTR -> "char*"
# param2 : RASCREDENTIALSA* 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)。

const std = @import("std");

extern "rasapi32" fn RasGetCredentialsA(
    param0: [*c]const u8, // LPCSTR optional
    param1: [*c]const u8, // LPCSTR
    param2: [*c]RASCREDENTIALSA // RASCREDENTIALSA* in/out
) callconv(std.os.windows.WINAPI) u32;

proc RasGetCredentialsA(
    param0: cstring,  # LPCSTR optional
    param1: cstring,  # LPCSTR
    param2: ptr RASCREDENTIALSA  # RASCREDENTIALSA* in/out
): uint32 {.importc: "RasGetCredentialsA", stdcall, dynlib: "RASAPI32.dll".}

pragma(lib, "rasapi32");
extern(Windows)
uint RasGetCredentialsA(
    const(char)* param0,   // LPCSTR optional
    const(char)* param1,   // LPCSTR
    RASCREDENTIALSA* param2   // RASCREDENTIALSA* in/out
);

ccall((:RasGetCredentialsA, "RASAPI32.dll"), stdcall, UInt32,
      (Cstring, Cstring, Ptr{RASCREDENTIALSA}),
      param0, param1, param2)
# param0 : LPCSTR optional -> Cstring
# param1 : LPCSTR -> Cstring
# param2 : RASCREDENTIALSA* in/out -> Ptr{RASCREDENTIALSA}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
uint32_t RasGetCredentialsA(
    const char* param0,
    const char* param1,
    void* param2);
]]
local rasapi32 = ffi.load("rasapi32")
-- rasapi32.RasGetCredentialsA(param0, param1, param2)
-- param0 : LPCSTR optional
-- param1 : LPCSTR
-- param2 : RASCREDENTIALSA* 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。

const koffi = require('koffi');
const lib = koffi.load('RASAPI32.dll');
const RasGetCredentialsA = lib.func('__stdcall', 'RasGetCredentialsA', 'uint32_t', ['str', 'str', 'void *']);
// RasGetCredentialsA(param0, param1, param2)
// param0 : LPCSTR optional -> 'str'
// param1 : LPCSTR -> 'str'
// param2 : RASCREDENTIALSA* 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("RASAPI32.dll", {
  RasGetCredentialsA: { parameters: ["buffer", "buffer", "pointer"], result: "u32" },
});
// lib.symbols.RasGetCredentialsA(param0, param1, param2)
// param0 : LPCSTR optional -> "buffer"
// param1 : LPCSTR -> "buffer"
// param2 : RASCREDENTIALSA* in/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 RasGetCredentialsA(
    const char* param0,
    const char* param1,
    void* param2);
C, "RASAPI32.dll");
// $ffi->RasGetCredentialsA(param0, param1, param2);
// param0 : LPCSTR optional
// param1 : LPCSTR
// param2 : RASCREDENTIALSA* 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 Rasapi32 extends StdCallLibrary {
    Rasapi32 INSTANCE = Native.load("rasapi32", Rasapi32.class, W32APIOptions.ASCII_OPTIONS);
    int RasGetCredentialsA(
        String param0,   // LPCSTR optional
        String param1,   // LPCSTR
        Pointer param2   // RASCREDENTIALSA* in/out
    );
}

@[Link("rasapi32")]
lib LibRASAPI32
  fun RasGetCredentialsA = RasGetCredentialsA(
    param0 : UInt8*,   # LPCSTR optional
    param1 : UInt8*,   # LPCSTR
    param2 : RASCREDENTIALSA*   # RASCREDENTIALSA* in/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 RasGetCredentialsANative = Uint32 Function(Pointer<Utf8>, Pointer<Utf8>, Pointer<Void>);
typedef RasGetCredentialsADart = int Function(Pointer<Utf8>, Pointer<Utf8>, Pointer<Void>);
final RasGetCredentialsA = DynamicLibrary.open('RASAPI32.dll')
    .lookupFunction<RasGetCredentialsANative, RasGetCredentialsADart>('RasGetCredentialsA');
// param0 : LPCSTR optional -> Pointer<Utf8>
// param1 : LPCSTR -> Pointer<Utf8>
// param2 : RASCREDENTIALSA* in/out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function RasGetCredentialsA(
  param0: PAnsiChar;   // LPCSTR optional
  param1: PAnsiChar;   // LPCSTR
  param2: Pointer   // RASCREDENTIALSA* in/out
): DWORD; stdcall;
  external 'RASAPI32.dll' name 'RasGetCredentialsA';

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

foreign import stdcall safe "RasGetCredentialsA"
  c_RasGetCredentialsA :: CString -> CString -> Ptr () -> IO Word32
-- param0 : LPCSTR optional -> CString
-- param1 : LPCSTR -> CString
-- param2 : RASCREDENTIALSA* 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 rasgetcredentialsa =
  foreign "RasGetCredentialsA"
    (string @-> string @-> (ptr void) @-> returning uint32_t)
(* param0 : LPCSTR optional -> string *)
(* param1 : LPCSTR -> string *)
(* param2 : RASCREDENTIALSA* 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 rasapi32 (t "RASAPI32.dll"))
(cffi:use-foreign-library rasapi32)

(cffi:defcfun ("RasGetCredentialsA" ras-get-credentials-a :convention :stdcall) :uint32
  (param0 :string)   ; LPCSTR optional
  (param1 :string)   ; LPCSTR
  (param2 :pointer))   ; RASCREDENTIALSA* in/out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $RasGetCredentialsA = Win32::API::More->new('RASAPI32',
    'DWORD RasGetCredentialsA(LPCSTR param0, LPCSTR param1, LPVOID param2)');
# my $ret = $RasGetCredentialsA->Call($param0, $param1, $param2);
# param0 : LPCSTR optional -> LPCSTR
# param1 : LPCSTR -> LPCSTR
# param2 : RASCREDENTIALSA* 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。