WNetGetNetworkInformationA

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

WIN32_ERROR WNetGetNetworkInformationA(
    LPCSTR lpProvider,
    NETINFOSTRUCT* lpNetInfoStruct
);

<DllImport("MPR.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function WNetGetNetworkInformationA(
    <MarshalAs(UnmanagedType.LPStr)> lpProvider As String,   ' LPCSTR
    lpNetInfoStruct As IntPtr   ' NETINFOSTRUCT* out
) As UInteger
End Function

' lpProvider : LPCSTR
' lpNetInfoStruct : NETINFOSTRUCT* out
Declare PtrSafe Function WNetGetNetworkInformationA Lib "mpr" ( _
    ByVal lpProvider As String, _
    ByVal lpNetInfoStruct 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

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

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('MPR.dll')
WNetGetNetworkInformationA = Fiddle::Function.new(
  lib['WNetGetNetworkInformationA'],
  [
    Fiddle::TYPE_VOIDP,  # lpProvider : LPCSTR
    Fiddle::TYPE_VOIDP,  # lpNetInfoStruct : NETINFOSTRUCT* out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "mpr")]
extern "system" {
    fn WNetGetNetworkInformationA(
        lpProvider: *const u8,  // LPCSTR
        lpNetInfoStruct: *mut NETINFOSTRUCT  // NETINFOSTRUCT* out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

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

#uselib "MPR.dll"
#func global WNetGetNetworkInformationA "WNetGetNetworkInformationA" sptr, sptr
; WNetGetNetworkInformationA lpProvider, varptr(lpNetInfoStruct)   ; 戻り値は stat
; lpProvider : LPCSTR -> "sptr"
; lpNetInfoStruct : NETINFOSTRUCT* 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 (
	mpr = windows.NewLazySystemDLL("MPR.dll")
	procWNetGetNetworkInformationA = mpr.NewProc("WNetGetNetworkInformationA")
)

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

function WNetGetNetworkInformationA(
  lpProvider: PAnsiChar;   // LPCSTR
  lpNetInfoStruct: Pointer   // NETINFOSTRUCT* out
): DWORD; stdcall;
  external 'MPR.dll' name 'WNetGetNetworkInformationA';

result := DllCall("MPR\WNetGetNetworkInformationA"
    , "AStr", lpProvider   ; LPCSTR
    , "Ptr", lpNetInfoStruct   ; NETINFOSTRUCT* out
    , "UInt")   ; return: WIN32_ERROR

●WNetGetNetworkInformationA(lpProvider, lpNetInfoStruct) = DLL("MPR.dll", "dword WNetGetNetworkInformationA(char*, void*)")
# 呼び出し: WNetGetNetworkInformationA(lpProvider, lpNetInfoStruct)
# lpProvider : LPCSTR -> "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)。

const std = @import("std");

extern "mpr" fn WNetGetNetworkInformationA(
    lpProvider: [*c]const u8, // LPCSTR
    lpNetInfoStruct: [*c]NETINFOSTRUCT // NETINFOSTRUCT* out
) callconv(std.os.windows.WINAPI) u32;

proc WNetGetNetworkInformationA(
    lpProvider: cstring,  # LPCSTR
    lpNetInfoStruct: ptr NETINFOSTRUCT  # NETINFOSTRUCT* out
): uint32 {.importc: "WNetGetNetworkInformationA", stdcall, dynlib: "MPR.dll".}

pragma(lib, "mpr");
extern(Windows)
uint WNetGetNetworkInformationA(
    const(char)* lpProvider,   // LPCSTR
    NETINFOSTRUCT* lpNetInfoStruct   // NETINFOSTRUCT* out
);

ccall((:WNetGetNetworkInformationA, "MPR.dll"), stdcall, UInt32,
      (Cstring, Ptr{NETINFOSTRUCT}),
      lpProvider, lpNetInfoStruct)
# lpProvider : LPCSTR -> Cstring
# lpNetInfoStruct : NETINFOSTRUCT* out -> Ptr{NETINFOSTRUCT}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
uint32_t WNetGetNetworkInformationA(
    const char* lpProvider,
    void* lpNetInfoStruct);
]]
local mpr = ffi.load("mpr")
-- mpr.WNetGetNetworkInformationA(lpProvider, lpNetInfoStruct)
-- lpProvider : LPCSTR
-- 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。

const koffi = require('koffi');
const lib = koffi.load('MPR.dll');
const WNetGetNetworkInformationA = lib.func('__stdcall', 'WNetGetNetworkInformationA', 'uint32_t', ['str', 'void *']);
// WNetGetNetworkInformationA(lpProvider, lpNetInfoStruct)
// lpProvider : LPCSTR -> 'str'
// 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", {
  WNetGetNetworkInformationA: { parameters: ["buffer", "pointer"], result: "u32" },
});
// lib.symbols.WNetGetNetworkInformationA(lpProvider, lpNetInfoStruct)
// lpProvider : LPCSTR -> "buffer"
// lpNetInfoStruct : NETINFOSTRUCT* 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 WNetGetNetworkInformationA(
    const char* lpProvider,
    void* lpNetInfoStruct);
C, "MPR.dll");
// $ffi->WNetGetNetworkInformationA(lpProvider, lpNetInfoStruct);
// lpProvider : LPCSTR
// 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.ASCII_OPTIONS);
    int WNetGetNetworkInformationA(
        String lpProvider,   // LPCSTR
        Pointer lpNetInfoStruct   // NETINFOSTRUCT* out
    );
}

@[Link("mpr")]
lib LibMPR
  fun WNetGetNetworkInformationA = WNetGetNetworkInformationA(
    lpProvider : UInt8*,   # LPCSTR
    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 WNetGetNetworkInformationANative = Uint32 Function(Pointer<Utf8>, Pointer<Void>);
typedef WNetGetNetworkInformationADart = int Function(Pointer<Utf8>, Pointer<Void>);
final WNetGetNetworkInformationA = DynamicLibrary.open('MPR.dll')
    .lookupFunction<WNetGetNetworkInformationANative, WNetGetNetworkInformationADart>('WNetGetNetworkInformationA');
// lpProvider : LPCSTR -> Pointer<Utf8>
// lpNetInfoStruct : NETINFOSTRUCT* out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

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

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

foreign import stdcall safe "WNetGetNetworkInformationA"
  c_WNetGetNetworkInformationA :: CString -> Ptr () -> IO Word32
-- lpProvider : LPCSTR -> CString
-- 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 wnetgetnetworkinformationa =
  foreign "WNetGetNetworkInformationA"
    (string @-> (ptr void) @-> returning uint32_t)
(* lpProvider : LPCSTR -> string *)
(* 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 ("WNetGetNetworkInformationA" wnet-get-network-information-a :convention :stdcall) :uint32
  (lp-provider :string)   ; LPCSTR
  (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 $WNetGetNetworkInformationA = Win32::API::More->new('MPR',
    'DWORD WNetGetNetworkInformationA(LPCSTR lpProvider, LPVOID lpNetInfoStruct)');
# my $ret = $WNetGetNetworkInformationA->Call($lpProvider, $lpNetInfoStruct);
# lpProvider : LPCSTR -> LPCSTR
# 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。