RasGetProjectionInfoW

// RASAPI32.dll  (Unicode / -W)
#include <windows.h>

DWORD RasGetProjectionInfoW(
    HRASCONN param0,
    RASPROJECTION param1,
    void* param2,
    DWORD* param3
);

<DllImport("RASAPI32.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function RasGetProjectionInfoW(
    param0 As IntPtr,   ' HRASCONN
    param1 As Integer,   ' RASPROJECTION
    param2 As IntPtr,   ' void* out
    ByRef param3 As UInteger   ' DWORD* in/out
) As UInteger
End Function

' param0 : HRASCONN
' param1 : RASPROJECTION
' param2 : void* out
' param3 : DWORD* in/out
Declare PtrSafe Function RasGetProjectionInfoW Lib "rasapi32" ( _
    ByVal param0 As LongPtr, _
    ByVal param1 As Long, _
    ByVal param2 As LongPtr, _
    ByRef param3 As Long) 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

RasGetProjectionInfoW = ctypes.windll.rasapi32.RasGetProjectionInfoW
RasGetProjectionInfoW.restype = wintypes.DWORD
RasGetProjectionInfoW.argtypes = [
    wintypes.HANDLE,  # param0 : HRASCONN
    ctypes.c_int,  # param1 : RASPROJECTION
    ctypes.POINTER(None),  # param2 : void* out
    ctypes.POINTER(wintypes.DWORD),  # param3 : DWORD* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('RASAPI32.dll')
RasGetProjectionInfoW = Fiddle::Function.new(
  lib['RasGetProjectionInfoW'],
  [
    Fiddle::TYPE_VOIDP,  # param0 : HRASCONN
    Fiddle::TYPE_INT,  # param1 : RASPROJECTION
    Fiddle::TYPE_VOIDP,  # param2 : void* out
    Fiddle::TYPE_VOIDP,  # param3 : DWORD* in/out
  ],
  -Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "rasapi32")]
extern "system" {
    fn RasGetProjectionInfoW(
        param0: *mut core::ffi::c_void,  // HRASCONN
        param1: i32,  // RASPROJECTION
        param2: *mut (),  // void* out
        param3: *mut u32  // DWORD* in/out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("RASAPI32.dll", CharSet = CharSet.Unicode)]
public static extern uint RasGetProjectionInfoW(IntPtr param0, int param1, IntPtr param2, ref uint param3);
"@
$api = Add-Type -MemberDefinition $sig -Name 'RASAPI32_RasGetProjectionInfoW' -Namespace Win32 -PassThru
# $api::RasGetProjectionInfoW(param0, param1, param2, param3)

#uselib "RASAPI32.dll"
#func global RasGetProjectionInfoW "RasGetProjectionInfoW" wptr, wptr, wptr, wptr
; RasGetProjectionInfoW param0, param1, param2, varptr(param3)   ; 戻り値は stat
; param0 : HRASCONN -> "wptr"
; param1 : RASPROJECTION -> "wptr"
; param2 : void* out -> "wptr"
; param3 : DWORD* 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 (
	rasapi32 = windows.NewLazySystemDLL("RASAPI32.dll")
	procRasGetProjectionInfoW = rasapi32.NewProc("RasGetProjectionInfoW")
)

// param0 (HRASCONN), param1 (RASPROJECTION), param2 (void* out), param3 (DWORD* in/out)
r1, _, err := procRasGetProjectionInfoW.Call(
	uintptr(param0),
	uintptr(param1),
	uintptr(param2),
	uintptr(param3),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function RasGetProjectionInfoW(
  param0: THandle;   // HRASCONN
  param1: Integer;   // RASPROJECTION
  param2: Pointer;   // void* out
  param3: Pointer   // DWORD* in/out
): DWORD; stdcall;
  external 'RASAPI32.dll' name 'RasGetProjectionInfoW';

result := DllCall("RASAPI32\RasGetProjectionInfoW"
    , "Ptr", param0   ; HRASCONN
    , "Int", param1   ; RASPROJECTION
    , "Ptr", param2   ; void* out
    , "Ptr", param3   ; DWORD* in/out
    , "UInt")   ; return: DWORD

●RasGetProjectionInfoW(param0, param1, param2, param3) = DLL("RASAPI32.dll", "dword RasGetProjectionInfoW(void*, int, void*, void*)")
# 呼び出し: RasGetProjectionInfoW(param0, param1, param2, param3)
# param0 : HRASCONN -> "void*"
# param1 : RASPROJECTION -> "int"
# param2 : void* out -> "void*"
# param3 : DWORD* 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 "rasapi32" fn RasGetProjectionInfoW(
    param0: ?*anyopaque, // HRASCONN
    param1: i32, // RASPROJECTION
    param2: ?*anyopaque, // void* out
    param3: [*c]u32 // DWORD* in/out
) callconv(std.os.windows.WINAPI) u32;
// Unicode(-W): UTF-16LE のヌル終端バッファ([*c]const u16)を渡す。

proc RasGetProjectionInfoW(
    param0: pointer,  # HRASCONN
    param1: int32,  # RASPROJECTION
    param2: pointer,  # void* out
    param3: ptr uint32  # DWORD* in/out
): uint32 {.importc: "RasGetProjectionInfoW", stdcall, dynlib: "RASAPI32.dll".}
# Unicode(-W): WideCString は newWideCString("...") で生成。

pragma(lib, "rasapi32");
extern(Windows)
uint RasGetProjectionInfoW(
    void* param0,   // HRASCONN
    int param1,   // RASPROJECTION
    void* param2,   // void* out
    uint* param3   // DWORD* in/out
);

ccall((:RasGetProjectionInfoW, "RASAPI32.dll"), stdcall, UInt32,
      (Ptr{Cvoid}, Int32, Ptr{Cvoid}, Ptr{UInt32}),
      param0, param1, param2, param3)
# param0 : HRASCONN -> Ptr{Cvoid}
# param1 : RASPROJECTION -> Int32
# param2 : void* out -> Ptr{Cvoid}
# param3 : DWORD* in/out -> Ptr{UInt32}
# 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[[
uint32_t RasGetProjectionInfoW(
    void* param0,
    int32_t param1,
    void* param2,
    uint32_t* param3);
]]
local rasapi32 = ffi.load("rasapi32")
-- rasapi32.RasGetProjectionInfoW(param0, param1, param2, param3)
-- param0 : HRASCONN
-- param1 : RASPROJECTION
-- param2 : void* out
-- param3 : DWORD* 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('RASAPI32.dll');
const RasGetProjectionInfoW = lib.func('__stdcall', 'RasGetProjectionInfoW', 'uint32_t', ['void *', 'int32_t', 'void *', 'uint32_t *']);
// RasGetProjectionInfoW(param0, param1, param2, param3)
// param0 : HRASCONN -> 'void *'
// param1 : RASPROJECTION -> 'int32_t'
// param2 : void* out -> 'void *'
// param3 : DWORD* in/out -> '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("RASAPI32.dll", {
  RasGetProjectionInfoW: { parameters: ["pointer", "i32", "pointer", "pointer"], result: "u32" },
});
// lib.symbols.RasGetProjectionInfoW(param0, param1, param2, param3)
// param0 : HRASCONN -> "pointer"
// param1 : RASPROJECTION -> "i32"
// param2 : void* out -> "pointer"
// param3 : DWORD* 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
uint32_t RasGetProjectionInfoW(
    void* param0,
    int32_t param1,
    void* param2,
    uint32_t* param3);
C, "RASAPI32.dll");
// $ffi->RasGetProjectionInfoW(param0, param1, param2, param3);
// param0 : HRASCONN
// param1 : RASPROJECTION
// param2 : void* out
// param3 : DWORD* 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.UNICODE_OPTIONS);
    int RasGetProjectionInfoW(
        Pointer param0,   // HRASCONN
        int param1,   // RASPROJECTION
        Pointer param2,   // void* out
        IntByReference param3   // DWORD* in/out
    );
}
// Unicode(-W): WString(入力)/char[](出力)で UTF-16 をマーシャリング。

@[Link("rasapi32")]
lib LibRASAPI32
  fun RasGetProjectionInfoW = RasGetProjectionInfoW(
    param0 : Void*,   # HRASCONN
    param1 : Int32,   # RASPROJECTION
    param2 : Void*,   # void* out
    param3 : UInt32*   # DWORD* 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 RasGetProjectionInfoWNative = Uint32 Function(Pointer<Void>, Int32, Pointer<Void>, Pointer<Uint32>);
typedef RasGetProjectionInfoWDart = int Function(Pointer<Void>, int, Pointer<Void>, Pointer<Uint32>);
final RasGetProjectionInfoW = DynamicLibrary.open('RASAPI32.dll')
    .lookupFunction<RasGetProjectionInfoWNative, RasGetProjectionInfoWDart>('RasGetProjectionInfoW');
// param0 : HRASCONN -> Pointer<Void>
// param1 : RASPROJECTION -> Int32
// param2 : void* out -> Pointer<Void>
// param3 : DWORD* in/out -> Pointer<Uint32>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function RasGetProjectionInfoW(
  param0: THandle;   // HRASCONN
  param1: Integer;   // RASPROJECTION
  param2: Pointer;   // void* out
  param3: Pointer   // DWORD* in/out
): DWORD; stdcall;
  external 'RASAPI32.dll' name 'RasGetProjectionInfoW';

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

foreign import stdcall safe "RasGetProjectionInfoW"
  c_RasGetProjectionInfoW :: Ptr () -> Int32 -> Ptr () -> Ptr Word32 -> IO Word32
-- param0 : HRASCONN -> Ptr ()
-- param1 : RASPROJECTION -> Int32
-- param2 : void* out -> Ptr ()
-- param3 : DWORD* in/out -> Ptr 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 rasgetprojectioninfow =
  foreign "RasGetProjectionInfoW"
    ((ptr void) @-> int32_t @-> (ptr void) @-> (ptr uint32_t) @-> returning uint32_t)
(* param0 : HRASCONN -> (ptr void) *)
(* param1 : RASPROJECTION -> int32_t *)
(* param2 : void* out -> (ptr void) *)
(* param3 : DWORD* in/out -> (ptr 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 rasapi32 (t "RASAPI32.dll"))
(cffi:use-foreign-library rasapi32)

(cffi:defcfun ("RasGetProjectionInfoW" ras-get-projection-info-w :convention :stdcall) :uint32
  (param0 :pointer)   ; HRASCONN
  (param1 :int32)   ; RASPROJECTION
  (param2 :pointer)   ; void* out
  (param3 :pointer))   ; DWORD* in/out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $RasGetProjectionInfoW = Win32::API::More->new('RASAPI32',
    'DWORD RasGetProjectionInfoW(HANDLE param0, int param1, LPVOID param2, LPVOID param3)');
# my $ret = $RasGetProjectionInfoW->Call($param0, $param1, $param2, $param3);
# param0 : HRASCONN -> HANDLE
# param1 : RASPROJECTION -> int
# param2 : void* out -> LPVOID
# param3 : DWORD* 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。