WNetGetLastErrorA

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

WIN32_ERROR WNetGetLastErrorA(
    DWORD* lpError,
    LPSTR lpErrorBuf,
    DWORD nErrorBufSize,
    LPSTR lpNameBuf,
    DWORD nNameBufSize
);

<DllImport("MPR.dll", CharSet:=CharSet.Ansi, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function WNetGetLastErrorA(
    <Out> ByRef lpError As UInteger,   ' DWORD* out
    <MarshalAs(UnmanagedType.LPStr)> lpErrorBuf As System.Text.StringBuilder,   ' LPSTR out
    nErrorBufSize As UInteger,   ' DWORD
    <MarshalAs(UnmanagedType.LPStr)> lpNameBuf As System.Text.StringBuilder,   ' LPSTR out
    nNameBufSize As UInteger   ' DWORD
) As UInteger
End Function

' lpError : DWORD* out
' lpErrorBuf : LPSTR out
' nErrorBufSize : DWORD
' lpNameBuf : LPSTR out
' nNameBufSize : DWORD
Declare PtrSafe Function WNetGetLastErrorA Lib "mpr" ( _
    ByRef lpError As Long, _
    ByVal lpErrorBuf As String, _
    ByVal nErrorBufSize As Long, _
    ByVal lpNameBuf As String, _
    ByVal nNameBufSize 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

WNetGetLastErrorA = ctypes.windll.mpr.WNetGetLastErrorA
WNetGetLastErrorA.restype = wintypes.DWORD
WNetGetLastErrorA.argtypes = [
    ctypes.POINTER(wintypes.DWORD),  # lpError : DWORD* out
    wintypes.LPSTR,  # lpErrorBuf : LPSTR out
    wintypes.DWORD,  # nErrorBufSize : DWORD
    wintypes.LPSTR,  # lpNameBuf : LPSTR out
    wintypes.DWORD,  # nNameBufSize : DWORD
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('MPR.dll')
WNetGetLastErrorA = Fiddle::Function.new(
  lib['WNetGetLastErrorA'],
  [
    Fiddle::TYPE_VOIDP,  # lpError : DWORD* out
    Fiddle::TYPE_VOIDP,  # lpErrorBuf : LPSTR out
    -Fiddle::TYPE_INT,  # nErrorBufSize : DWORD
    Fiddle::TYPE_VOIDP,  # lpNameBuf : LPSTR out
    -Fiddle::TYPE_INT,  # nNameBufSize : DWORD
  ],
  -Fiddle::TYPE_INT)

#[link(name = "mpr")]
extern "system" {
    fn WNetGetLastErrorA(
        lpError: *mut u32,  // DWORD* out
        lpErrorBuf: *mut u8,  // LPSTR out
        nErrorBufSize: u32,  // DWORD
        lpNameBuf: *mut u8,  // LPSTR out
        nNameBufSize: u32  // DWORD
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("MPR.dll", CharSet = CharSet.Ansi, SetLastError = true)]
public static extern uint WNetGetLastErrorA(out uint lpError, [MarshalAs(UnmanagedType.LPStr)] System.Text.StringBuilder lpErrorBuf, uint nErrorBufSize, [MarshalAs(UnmanagedType.LPStr)] System.Text.StringBuilder lpNameBuf, uint nNameBufSize);
"@
$api = Add-Type -MemberDefinition $sig -Name 'MPR_WNetGetLastErrorA' -Namespace Win32 -PassThru
# $api::WNetGetLastErrorA(lpError, lpErrorBuf, nErrorBufSize, lpNameBuf, nNameBufSize)

#uselib "MPR.dll"
#func global WNetGetLastErrorA "WNetGetLastErrorA" sptr, sptr, sptr, sptr, sptr
; WNetGetLastErrorA varptr(lpError), varptr(lpErrorBuf), nErrorBufSize, varptr(lpNameBuf), nNameBufSize   ; 戻り値は stat
; lpError : DWORD* out -> "sptr"
; lpErrorBuf : LPSTR out -> "sptr"
; nErrorBufSize : DWORD -> "sptr"
; lpNameBuf : LPSTR out -> "sptr"
; nNameBufSize : 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 (
	mpr = windows.NewLazySystemDLL("MPR.dll")
	procWNetGetLastErrorA = mpr.NewProc("WNetGetLastErrorA")
)

// lpError (DWORD* out), lpErrorBuf (LPSTR out), nErrorBufSize (DWORD), lpNameBuf (LPSTR out), nNameBufSize (DWORD)
r1, _, err := procWNetGetLastErrorA.Call(
	uintptr(lpError),
	uintptr(lpErrorBuf),
	uintptr(nErrorBufSize),
	uintptr(lpNameBuf),
	uintptr(nNameBufSize),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // WIN32_ERROR

function WNetGetLastErrorA(
  lpError: Pointer;   // DWORD* out
  lpErrorBuf: PAnsiChar;   // LPSTR out
  nErrorBufSize: DWORD;   // DWORD
  lpNameBuf: PAnsiChar;   // LPSTR out
  nNameBufSize: DWORD   // DWORD
): DWORD; stdcall;
  external 'MPR.dll' name 'WNetGetLastErrorA';

result := DllCall("MPR\WNetGetLastErrorA"
    , "Ptr", lpError   ; DWORD* out
    , "Ptr", lpErrorBuf   ; LPSTR out
    , "UInt", nErrorBufSize   ; DWORD
    , "Ptr", lpNameBuf   ; LPSTR out
    , "UInt", nNameBufSize   ; DWORD
    , "UInt")   ; return: WIN32_ERROR

●WNetGetLastErrorA(lpError, lpErrorBuf, nErrorBufSize, lpNameBuf, nNameBufSize) = DLL("MPR.dll", "dword WNetGetLastErrorA(void*, char*, dword, char*, dword)")
# 呼び出し: WNetGetLastErrorA(lpError, lpErrorBuf, nErrorBufSize, lpNameBuf, nNameBufSize)
# lpError : DWORD* out -> "void*"
# lpErrorBuf : LPSTR out -> "char*"
# nErrorBufSize : DWORD -> "dword"
# lpNameBuf : LPSTR out -> "char*"
# nNameBufSize : 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 "mpr" fn WNetGetLastErrorA(
    lpError: [*c]u32, // DWORD* out
    lpErrorBuf: [*c]u8, // LPSTR out
    nErrorBufSize: u32, // DWORD
    lpNameBuf: [*c]u8, // LPSTR out
    nNameBufSize: u32 // DWORD
) callconv(std.os.windows.WINAPI) u32;

proc WNetGetLastErrorA(
    lpError: ptr uint32,  # DWORD* out
    lpErrorBuf: ptr char,  # LPSTR out
    nErrorBufSize: uint32,  # DWORD
    lpNameBuf: ptr char,  # LPSTR out
    nNameBufSize: uint32  # DWORD
): uint32 {.importc: "WNetGetLastErrorA", stdcall, dynlib: "MPR.dll".}

pragma(lib, "mpr");
extern(Windows)
uint WNetGetLastErrorA(
    uint* lpError,   // DWORD* out
    char* lpErrorBuf,   // LPSTR out
    uint nErrorBufSize,   // DWORD
    char* lpNameBuf,   // LPSTR out
    uint nNameBufSize   // DWORD
);

ccall((:WNetGetLastErrorA, "MPR.dll"), stdcall, UInt32,
      (Ptr{UInt32}, Ptr{UInt8}, UInt32, Ptr{UInt8}, UInt32),
      lpError, lpErrorBuf, nErrorBufSize, lpNameBuf, nNameBufSize)
# lpError : DWORD* out -> Ptr{UInt32}
# lpErrorBuf : LPSTR out -> Ptr{UInt8}
# nErrorBufSize : DWORD -> UInt32
# lpNameBuf : LPSTR out -> Ptr{UInt8}
# nNameBufSize : DWORD -> UInt32
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
uint32_t WNetGetLastErrorA(
    uint32_t* lpError,
    char* lpErrorBuf,
    uint32_t nErrorBufSize,
    char* lpNameBuf,
    uint32_t nNameBufSize);
]]
local mpr = ffi.load("mpr")
-- mpr.WNetGetLastErrorA(lpError, lpErrorBuf, nErrorBufSize, lpNameBuf, nNameBufSize)
-- lpError : DWORD* out
-- lpErrorBuf : LPSTR out
-- nErrorBufSize : DWORD
-- lpNameBuf : LPSTR out
-- nNameBufSize : 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('MPR.dll');
const WNetGetLastErrorA = lib.func('__stdcall', 'WNetGetLastErrorA', 'uint32_t', ['uint32_t *', 'char *', 'uint32_t', 'char *', 'uint32_t']);
// WNetGetLastErrorA(lpError, lpErrorBuf, nErrorBufSize, lpNameBuf, nNameBufSize)
// lpError : DWORD* out -> 'uint32_t *'
// lpErrorBuf : LPSTR out -> 'char *'
// nErrorBufSize : DWORD -> 'uint32_t'
// lpNameBuf : LPSTR out -> 'char *'
// nNameBufSize : 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("MPR.dll", {
  WNetGetLastErrorA: { parameters: ["pointer", "buffer", "u32", "buffer", "u32"], result: "u32" },
});
// lib.symbols.WNetGetLastErrorA(lpError, lpErrorBuf, nErrorBufSize, lpNameBuf, nNameBufSize)
// lpError : DWORD* out -> "pointer"
// lpErrorBuf : LPSTR out -> "buffer"
// nErrorBufSize : DWORD -> "u32"
// lpNameBuf : LPSTR out -> "buffer"
// nNameBufSize : DWORD -> "u32"
// 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 WNetGetLastErrorA(
    uint32_t* lpError,
    char* lpErrorBuf,
    uint32_t nErrorBufSize,
    char* lpNameBuf,
    uint32_t nNameBufSize);
C, "MPR.dll");
// $ffi->WNetGetLastErrorA(lpError, lpErrorBuf, nErrorBufSize, lpNameBuf, nNameBufSize);
// lpError : DWORD* out
// lpErrorBuf : LPSTR out
// nErrorBufSize : DWORD
// lpNameBuf : LPSTR out
// nNameBufSize : 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 Mpr extends StdCallLibrary {
    Mpr INSTANCE = Native.load("mpr", Mpr.class, W32APIOptions.ASCII_OPTIONS);
    int WNetGetLastErrorA(
        IntByReference lpError,   // DWORD* out
        byte[] lpErrorBuf,   // LPSTR out
        int nErrorBufSize,   // DWORD
        byte[] lpNameBuf,   // LPSTR out
        int nNameBufSize   // DWORD
    );
}

@[Link("mpr")]
lib LibMPR
  fun WNetGetLastErrorA = WNetGetLastErrorA(
    lpError : UInt32*,   # DWORD* out
    lpErrorBuf : UInt8*,   # LPSTR out
    nErrorBufSize : UInt32,   # DWORD
    lpNameBuf : UInt8*,   # LPSTR out
    nNameBufSize : UInt32   # DWORD
  ) : 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 WNetGetLastErrorANative = Uint32 Function(Pointer<Uint32>, Pointer<Utf8>, Uint32, Pointer<Utf8>, Uint32);
typedef WNetGetLastErrorADart = int Function(Pointer<Uint32>, Pointer<Utf8>, int, Pointer<Utf8>, int);
final WNetGetLastErrorA = DynamicLibrary.open('MPR.dll')
    .lookupFunction<WNetGetLastErrorANative, WNetGetLastErrorADart>('WNetGetLastErrorA');
// lpError : DWORD* out -> Pointer<Uint32>
// lpErrorBuf : LPSTR out -> Pointer<Utf8>
// nErrorBufSize : DWORD -> Uint32
// lpNameBuf : LPSTR out -> Pointer<Utf8>
// nNameBufSize : DWORD -> Uint32
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function WNetGetLastErrorA(
  lpError: Pointer;   // DWORD* out
  lpErrorBuf: PAnsiChar;   // LPSTR out
  nErrorBufSize: DWORD;   // DWORD
  lpNameBuf: PAnsiChar;   // LPSTR out
  nNameBufSize: DWORD   // DWORD
): DWORD; stdcall;
  external 'MPR.dll' name 'WNetGetLastErrorA';

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

foreign import stdcall safe "WNetGetLastErrorA"
  c_WNetGetLastErrorA :: Ptr Word32 -> CString -> Word32 -> CString -> Word32 -> IO Word32
-- lpError : DWORD* out -> Ptr Word32
-- lpErrorBuf : LPSTR out -> CString
-- nErrorBufSize : DWORD -> Word32
-- lpNameBuf : LPSTR out -> CString
-- nNameBufSize : 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 wnetgetlasterrora =
  foreign "WNetGetLastErrorA"
    ((ptr uint32_t) @-> string @-> uint32_t @-> string @-> uint32_t @-> returning uint32_t)
(* lpError : DWORD* out -> (ptr uint32_t) *)
(* lpErrorBuf : LPSTR out -> string *)
(* nErrorBufSize : DWORD -> uint32_t *)
(* lpNameBuf : LPSTR out -> string *)
(* nNameBufSize : 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 mpr (t "MPR.dll"))
(cffi:use-foreign-library mpr)

(cffi:defcfun ("WNetGetLastErrorA" wnet-get-last-error-a :convention :stdcall) :uint32
  (lp-error :pointer)   ; DWORD* out
  (lp-error-buf :pointer)   ; LPSTR out
  (n-error-buf-size :uint32)   ; DWORD
  (lp-name-buf :pointer)   ; LPSTR out
  (n-name-buf-size :uint32))   ; DWORD
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $WNetGetLastErrorA = Win32::API::More->new('MPR',
    'DWORD WNetGetLastErrorA(LPVOID lpError, LPSTR lpErrorBuf, DWORD nErrorBufSize, LPSTR lpNameBuf, DWORD nNameBufSize)');
# my $ret = $WNetGetLastErrorA->Call($lpError, $lpErrorBuf, $nErrorBufSize, $lpNameBuf, $nNameBufSize);
# lpError : DWORD* out -> LPVOID
# lpErrorBuf : LPSTR out -> LPSTR
# nErrorBufSize : DWORD -> DWORD
# lpNameBuf : LPSTR out -> LPSTR
# nNameBufSize : DWORD -> DWORD
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。