WNetGetNetworkInformationW

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

WIN32_ERROR WNetGetNetworkInformationW(
    LPCWSTR lpProvider,
    NETINFOSTRUCT* lpNetInfoStruct
);

<DllImport("MPR.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function WNetGetNetworkInformationW(
    <MarshalAs(UnmanagedType.LPWStr)> lpProvider As String,   ' LPCWSTR
    lpNetInfoStruct As IntPtr   ' NETINFOSTRUCT* out
) As UInteger
End Function

' lpProvider : LPCWSTR
' lpNetInfoStruct : NETINFOSTRUCT* out
Declare PtrSafe Function WNetGetNetworkInformationW Lib "mpr" ( _
    ByVal lpProvider As LongPtr, _
    ByVal lpNetInfoStruct As LongPtr) 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

WNetGetNetworkInformationW = ctypes.windll.mpr.WNetGetNetworkInformationW
WNetGetNetworkInformationW.restype = wintypes.DWORD
WNetGetNetworkInformationW.argtypes = [
    wintypes.LPCWSTR,  # lpProvider : LPCWSTR
    ctypes.c_void_p,  # lpNetInfoStruct : NETINFOSTRUCT* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('MPR.dll')
WNetGetNetworkInformationW = Fiddle::Function.new(
  lib['WNetGetNetworkInformationW'],
  [
    Fiddle::TYPE_VOIDP,  # lpProvider : LPCWSTR
    Fiddle::TYPE_VOIDP,  # lpNetInfoStruct : NETINFOSTRUCT* out
  ],
  -Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "mpr")]
extern "system" {
    fn WNetGetNetworkInformationW(
        lpProvider: *const u16,  // LPCWSTR
        lpNetInfoStruct: *mut NETINFOSTRUCT  // NETINFOSTRUCT* out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("MPR.dll", CharSet = CharSet.Unicode)]
public static extern uint WNetGetNetworkInformationW([MarshalAs(UnmanagedType.LPWStr)] string lpProvider, IntPtr lpNetInfoStruct);
"@
$api = Add-Type -MemberDefinition $sig -Name 'MPR_WNetGetNetworkInformationW' -Namespace Win32 -PassThru
# $api::WNetGetNetworkInformationW(lpProvider, lpNetInfoStruct)

#uselib "MPR.dll"
#func global WNetGetNetworkInformationW "WNetGetNetworkInformationW" wptr, wptr
; WNetGetNetworkInformationW lpProvider, varptr(lpNetInfoStruct)   ; 戻り値は stat
; lpProvider : LPCWSTR -> "wptr"
; lpNetInfoStruct : NETINFOSTRUCT* 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 (
	mpr = windows.NewLazySystemDLL("MPR.dll")
	procWNetGetNetworkInformationW = mpr.NewProc("WNetGetNetworkInformationW")
)

// lpProvider (LPCWSTR), lpNetInfoStruct (NETINFOSTRUCT* out)
r1, _, err := procWNetGetNetworkInformationW.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpProvider))),
	uintptr(lpNetInfoStruct),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // WIN32_ERROR

function WNetGetNetworkInformationW(
  lpProvider: PWideChar;   // LPCWSTR
  lpNetInfoStruct: Pointer   // NETINFOSTRUCT* out
): DWORD; stdcall;
  external 'MPR.dll' name 'WNetGetNetworkInformationW';

result := DllCall("MPR\WNetGetNetworkInformationW"
    , "WStr", lpProvider   ; LPCWSTR
    , "Ptr", lpNetInfoStruct   ; NETINFOSTRUCT* out
    , "UInt")   ; return: WIN32_ERROR

●WNetGetNetworkInformationW(lpProvider, lpNetInfoStruct) = DLL("MPR.dll", "dword WNetGetNetworkInformationW(char*, void*)")
# 呼び出し: WNetGetNetworkInformationW(lpProvider, lpNetInfoStruct)
# lpProvider : LPCWSTR -> "char*"
# lpNetInfoStruct : NETINFOSTRUCT* 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 "mpr" fn WNetGetNetworkInformationW(
    lpProvider: [*c]const u16, // LPCWSTR
    lpNetInfoStruct: [*c]NETINFOSTRUCT // NETINFOSTRUCT* 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 WNetGetNetworkInformationW(
    lpProvider: WideCString,  # LPCWSTR
    lpNetInfoStruct: ptr NETINFOSTRUCT  # NETINFOSTRUCT* out
): uint32 {.importc: "WNetGetNetworkInformationW", stdcall, dynlib: "MPR.dll".}
# Unicode(-W): WideCString は newWideCString("...") で生成。

pragma(lib, "mpr");
extern(Windows)
uint WNetGetNetworkInformationW(
    const(wchar)* lpProvider,   // LPCWSTR
    NETINFOSTRUCT* lpNetInfoStruct   // NETINFOSTRUCT* out
);

ccall((:WNetGetNetworkInformationW, "MPR.dll"), stdcall, UInt32,
      (Cwstring, Ptr{NETINFOSTRUCT}),
      lpProvider, lpNetInfoStruct)
# lpProvider : LPCWSTR -> Cwstring
# lpNetInfoStruct : NETINFOSTRUCT* out -> Ptr{NETINFOSTRUCT}
# 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 WNetGetNetworkInformationW(
    const uint16_t* lpProvider,
    void* lpNetInfoStruct);
]]
local mpr = ffi.load("mpr")
-- mpr.WNetGetNetworkInformationW(lpProvider, lpNetInfoStruct)
-- lpProvider : LPCWSTR
-- lpNetInfoStruct : NETINFOSTRUCT* 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('MPR.dll');
const WNetGetNetworkInformationW = lib.func('__stdcall', 'WNetGetNetworkInformationW', 'uint32_t', ['str16', 'void *']);
// WNetGetNetworkInformationW(lpProvider, lpNetInfoStruct)
// lpProvider : LPCWSTR -> 'str16'
// lpNetInfoStruct : NETINFOSTRUCT* 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("MPR.dll", {
  WNetGetNetworkInformationW: { parameters: ["buffer", "pointer"], result: "u32" },
});
// lib.symbols.WNetGetNetworkInformationW(lpProvider, lpNetInfoStruct)
// lpProvider : LPCWSTR -> "buffer"
// lpNetInfoStruct : NETINFOSTRUCT* 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 WNetGetNetworkInformationW(
    const uint16_t* lpProvider,
    void* lpNetInfoStruct);
C, "MPR.dll");
// $ffi->WNetGetNetworkInformationW(lpProvider, lpNetInfoStruct);
// lpProvider : LPCWSTR
// lpNetInfoStruct : NETINFOSTRUCT* 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 Mpr extends StdCallLibrary {
    Mpr INSTANCE = Native.load("mpr", Mpr.class, W32APIOptions.UNICODE_OPTIONS);
    int WNetGetNetworkInformationW(
        WString lpProvider,   // LPCWSTR
        Pointer lpNetInfoStruct   // NETINFOSTRUCT* out
    );
}
// Unicode(-W): WString(入力)/char[](出力)で UTF-16 をマーシャリング。

@[Link("mpr")]
lib LibMPR
  fun WNetGetNetworkInformationW = WNetGetNetworkInformationW(
    lpProvider : UInt16*,   # LPCWSTR
    lpNetInfoStruct : NETINFOSTRUCT*   # NETINFOSTRUCT* 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 WNetGetNetworkInformationWNative = Uint32 Function(Pointer<Utf16>, Pointer<Void>);
typedef WNetGetNetworkInformationWDart = int Function(Pointer<Utf16>, Pointer<Void>);
final WNetGetNetworkInformationW = DynamicLibrary.open('MPR.dll')
    .lookupFunction<WNetGetNetworkInformationWNative, WNetGetNetworkInformationWDart>('WNetGetNetworkInformationW');
// lpProvider : LPCWSTR -> Pointer<Utf16>
// lpNetInfoStruct : NETINFOSTRUCT* out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function WNetGetNetworkInformationW(
  lpProvider: PWideChar;   // LPCWSTR
  lpNetInfoStruct: Pointer   // NETINFOSTRUCT* out
): DWORD; stdcall;
  external 'MPR.dll' name 'WNetGetNetworkInformationW';

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

foreign import stdcall safe "WNetGetNetworkInformationW"
  c_WNetGetNetworkInformationW :: CWString -> Ptr () -> IO Word32
-- lpProvider : LPCWSTR -> CWString
-- lpNetInfoStruct : NETINFOSTRUCT* 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 wnetgetnetworkinformationw =
  foreign "WNetGetNetworkInformationW"
    ((ptr uint16_t) @-> (ptr void) @-> returning uint32_t)
(* lpProvider : LPCWSTR -> (ptr uint16_t) *)
(* lpNetInfoStruct : NETINFOSTRUCT* 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 mpr (t "MPR.dll"))
(cffi:use-foreign-library mpr)

(cffi:defcfun ("WNetGetNetworkInformationW" wnet-get-network-information-w :convention :stdcall) :uint32
  (lp-provider (:string :encoding :utf-16le))   ; LPCWSTR
  (lp-net-info-struct :pointer))   ; NETINFOSTRUCT* out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $WNetGetNetworkInformationW = Win32::API::More->new('MPR',
    'DWORD WNetGetNetworkInformationW(LPCWSTR lpProvider, LPVOID lpNetInfoStruct)');
# my $ret = $WNetGetNetworkInformationW->Call($lpProvider, $lpNetInfoStruct);
# lpProvider : LPCWSTR -> LPCWSTR
# lpNetInfoStruct : NETINFOSTRUCT* 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。