NetQueryDisplayInformation

// NETAPI32.dll
#include <windows.h>

DWORD NetQueryDisplayInformation(
    LPCWSTR ServerName,
    DWORD Level,
    DWORD Index,
    DWORD EntriesRequested,
    DWORD PreferredMaximumLength,
    DWORD* ReturnedEntryCount,
    void** SortedBuffer
);

<DllImport("NETAPI32.dll", ExactSpelling:=True)>
Public Shared Function NetQueryDisplayInformation(
    <MarshalAs(UnmanagedType.LPWStr)> ServerName As String,   ' LPCWSTR
    Level As UInteger,   ' DWORD
    Index As UInteger,   ' DWORD
    EntriesRequested As UInteger,   ' DWORD
    PreferredMaximumLength As UInteger,   ' DWORD
    ByRef ReturnedEntryCount As UInteger,   ' DWORD* in/out
    SortedBuffer As IntPtr   ' void** in/out
) As UInteger
End Function

' ServerName : LPCWSTR
' Level : DWORD
' Index : DWORD
' EntriesRequested : DWORD
' PreferredMaximumLength : DWORD
' ReturnedEntryCount : DWORD* in/out
' SortedBuffer : void** in/out
Declare PtrSafe Function NetQueryDisplayInformation Lib "netapi32" ( _
    ByVal ServerName As LongPtr, _
    ByVal Level As Long, _
    ByVal Index As Long, _
    ByVal EntriesRequested As Long, _
    ByVal PreferredMaximumLength As Long, _
    ByRef ReturnedEntryCount As Long, _
    ByVal SortedBuffer 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

NetQueryDisplayInformation = ctypes.windll.netapi32.NetQueryDisplayInformation
NetQueryDisplayInformation.restype = wintypes.DWORD
NetQueryDisplayInformation.argtypes = [
    wintypes.LPCWSTR,  # ServerName : LPCWSTR
    wintypes.DWORD,  # Level : DWORD
    wintypes.DWORD,  # Index : DWORD
    wintypes.DWORD,  # EntriesRequested : DWORD
    wintypes.DWORD,  # PreferredMaximumLength : DWORD
    ctypes.POINTER(wintypes.DWORD),  # ReturnedEntryCount : DWORD* in/out
    ctypes.c_void_p,  # SortedBuffer : void** in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('NETAPI32.dll')
NetQueryDisplayInformation = Fiddle::Function.new(
  lib['NetQueryDisplayInformation'],
  [
    Fiddle::TYPE_VOIDP,  # ServerName : LPCWSTR
    -Fiddle::TYPE_INT,  # Level : DWORD
    -Fiddle::TYPE_INT,  # Index : DWORD
    -Fiddle::TYPE_INT,  # EntriesRequested : DWORD
    -Fiddle::TYPE_INT,  # PreferredMaximumLength : DWORD
    Fiddle::TYPE_VOIDP,  # ReturnedEntryCount : DWORD* in/out
    Fiddle::TYPE_VOIDP,  # SortedBuffer : void** in/out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "netapi32")]
extern "system" {
    fn NetQueryDisplayInformation(
        ServerName: *const u16,  // LPCWSTR
        Level: u32,  // DWORD
        Index: u32,  // DWORD
        EntriesRequested: u32,  // DWORD
        PreferredMaximumLength: u32,  // DWORD
        ReturnedEntryCount: *mut u32,  // DWORD* in/out
        SortedBuffer: *mut *mut ()  // void** in/out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("NETAPI32.dll")]
public static extern uint NetQueryDisplayInformation([MarshalAs(UnmanagedType.LPWStr)] string ServerName, uint Level, uint Index, uint EntriesRequested, uint PreferredMaximumLength, ref uint ReturnedEntryCount, IntPtr SortedBuffer);
"@
$api = Add-Type -MemberDefinition $sig -Name 'NETAPI32_NetQueryDisplayInformation' -Namespace Win32 -PassThru
# $api::NetQueryDisplayInformation(ServerName, Level, Index, EntriesRequested, PreferredMaximumLength, ReturnedEntryCount, SortedBuffer)

#uselib "NETAPI32.dll"
#func global NetQueryDisplayInformation "NetQueryDisplayInformation" sptr, sptr, sptr, sptr, sptr, sptr, sptr
; NetQueryDisplayInformation ServerName, Level, Index, EntriesRequested, PreferredMaximumLength, varptr(ReturnedEntryCount), SortedBuffer   ; 戻り値は stat
; ServerName : LPCWSTR -> "sptr"
; Level : DWORD -> "sptr"
; Index : DWORD -> "sptr"
; EntriesRequested : DWORD -> "sptr"
; PreferredMaximumLength : DWORD -> "sptr"
; ReturnedEntryCount : DWORD* in/out -> "sptr"
; SortedBuffer : void** 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 (
	netapi32 = windows.NewLazySystemDLL("NETAPI32.dll")
	procNetQueryDisplayInformation = netapi32.NewProc("NetQueryDisplayInformation")
)

// ServerName (LPCWSTR), Level (DWORD), Index (DWORD), EntriesRequested (DWORD), PreferredMaximumLength (DWORD), ReturnedEntryCount (DWORD* in/out), SortedBuffer (void** in/out)
r1, _, err := procNetQueryDisplayInformation.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(ServerName))),
	uintptr(Level),
	uintptr(Index),
	uintptr(EntriesRequested),
	uintptr(PreferredMaximumLength),
	uintptr(ReturnedEntryCount),
	uintptr(SortedBuffer),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function NetQueryDisplayInformation(
  ServerName: PWideChar;   // LPCWSTR
  Level: DWORD;   // DWORD
  Index: DWORD;   // DWORD
  EntriesRequested: DWORD;   // DWORD
  PreferredMaximumLength: DWORD;   // DWORD
  ReturnedEntryCount: Pointer;   // DWORD* in/out
  SortedBuffer: Pointer   // void** in/out
): DWORD; stdcall;
  external 'NETAPI32.dll' name 'NetQueryDisplayInformation';

result := DllCall("NETAPI32\NetQueryDisplayInformation"
    , "WStr", ServerName   ; LPCWSTR
    , "UInt", Level   ; DWORD
    , "UInt", Index   ; DWORD
    , "UInt", EntriesRequested   ; DWORD
    , "UInt", PreferredMaximumLength   ; DWORD
    , "Ptr", ReturnedEntryCount   ; DWORD* in/out
    , "Ptr", SortedBuffer   ; void** in/out
    , "UInt")   ; return: DWORD

●NetQueryDisplayInformation(ServerName, Level, Index, EntriesRequested, PreferredMaximumLength, ReturnedEntryCount, SortedBuffer) = DLL("NETAPI32.dll", "dword NetQueryDisplayInformation(char*, dword, dword, dword, dword, void*, void*)")
# 呼び出し: NetQueryDisplayInformation(ServerName, Level, Index, EntriesRequested, PreferredMaximumLength, ReturnedEntryCount, SortedBuffer)
# ServerName : LPCWSTR -> "char*"
# Level : DWORD -> "dword"
# Index : DWORD -> "dword"
# EntriesRequested : DWORD -> "dword"
# PreferredMaximumLength : DWORD -> "dword"
# ReturnedEntryCount : DWORD* in/out -> "void*"
# SortedBuffer : void** 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 "netapi32" fn NetQueryDisplayInformation(
    ServerName: [*c]const u16, // LPCWSTR
    Level: u32, // DWORD
    Index: u32, // DWORD
    EntriesRequested: u32, // DWORD
    PreferredMaximumLength: u32, // DWORD
    ReturnedEntryCount: [*c]u32, // DWORD* in/out
    SortedBuffer: ?*anyopaque // void** in/out
) callconv(std.os.windows.WINAPI) u32;

proc NetQueryDisplayInformation(
    ServerName: WideCString,  # LPCWSTR
    Level: uint32,  # DWORD
    Index: uint32,  # DWORD
    EntriesRequested: uint32,  # DWORD
    PreferredMaximumLength: uint32,  # DWORD
    ReturnedEntryCount: ptr uint32,  # DWORD* in/out
    SortedBuffer: pointer  # void** in/out
): uint32 {.importc: "NetQueryDisplayInformation", stdcall, dynlib: "NETAPI32.dll".}

pragma(lib, "netapi32");
extern(Windows)
uint NetQueryDisplayInformation(
    const(wchar)* ServerName,   // LPCWSTR
    uint Level,   // DWORD
    uint Index,   // DWORD
    uint EntriesRequested,   // DWORD
    uint PreferredMaximumLength,   // DWORD
    uint* ReturnedEntryCount,   // DWORD* in/out
    void** SortedBuffer   // void** in/out
);

ccall((:NetQueryDisplayInformation, "NETAPI32.dll"), stdcall, UInt32,
      (Cwstring, UInt32, UInt32, UInt32, UInt32, Ptr{UInt32}, Ptr{Cvoid}),
      ServerName, Level, Index, EntriesRequested, PreferredMaximumLength, ReturnedEntryCount, SortedBuffer)
# ServerName : LPCWSTR -> Cwstring
# Level : DWORD -> UInt32
# Index : DWORD -> UInt32
# EntriesRequested : DWORD -> UInt32
# PreferredMaximumLength : DWORD -> UInt32
# ReturnedEntryCount : DWORD* in/out -> Ptr{UInt32}
# SortedBuffer : void** in/out -> Ptr{Cvoid}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
uint32_t NetQueryDisplayInformation(
    const uint16_t* ServerName,
    uint32_t Level,
    uint32_t Index,
    uint32_t EntriesRequested,
    uint32_t PreferredMaximumLength,
    uint32_t* ReturnedEntryCount,
    void** SortedBuffer);
]]
local netapi32 = ffi.load("netapi32")
-- netapi32.NetQueryDisplayInformation(ServerName, Level, Index, EntriesRequested, PreferredMaximumLength, ReturnedEntryCount, SortedBuffer)
-- ServerName : LPCWSTR
-- Level : DWORD
-- Index : DWORD
-- EntriesRequested : DWORD
-- PreferredMaximumLength : DWORD
-- ReturnedEntryCount : DWORD* in/out
-- SortedBuffer : void** 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('NETAPI32.dll');
const NetQueryDisplayInformation = lib.func('__stdcall', 'NetQueryDisplayInformation', 'uint32_t', ['str16', 'uint32_t', 'uint32_t', 'uint32_t', 'uint32_t', 'uint32_t *', 'void *']);
// NetQueryDisplayInformation(ServerName, Level, Index, EntriesRequested, PreferredMaximumLength, ReturnedEntryCount, SortedBuffer)
// ServerName : LPCWSTR -> 'str16'
// Level : DWORD -> 'uint32_t'
// Index : DWORD -> 'uint32_t'
// EntriesRequested : DWORD -> 'uint32_t'
// PreferredMaximumLength : DWORD -> 'uint32_t'
// ReturnedEntryCount : DWORD* in/out -> 'uint32_t *'
// SortedBuffer : void** 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("NETAPI32.dll", {
  NetQueryDisplayInformation: { parameters: ["buffer", "u32", "u32", "u32", "u32", "pointer", "pointer"], result: "u32" },
});
// lib.symbols.NetQueryDisplayInformation(ServerName, Level, Index, EntriesRequested, PreferredMaximumLength, ReturnedEntryCount, SortedBuffer)
// ServerName : LPCWSTR -> "buffer"
// Level : DWORD -> "u32"
// Index : DWORD -> "u32"
// EntriesRequested : DWORD -> "u32"
// PreferredMaximumLength : DWORD -> "u32"
// ReturnedEntryCount : DWORD* in/out -> "pointer"
// SortedBuffer : void** in/out -> "pointer"
// 文字列引数は "buffer"(NUL 終端のバイト列を Uint8Array で渡す)。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。

<?php
$ffi = FFI::cdef(<<<C
uint32_t NetQueryDisplayInformation(
    const uint16_t* ServerName,
    uint32_t Level,
    uint32_t Index,
    uint32_t EntriesRequested,
    uint32_t PreferredMaximumLength,
    uint32_t* ReturnedEntryCount,
    void** SortedBuffer);
C, "NETAPI32.dll");
// $ffi->NetQueryDisplayInformation(ServerName, Level, Index, EntriesRequested, PreferredMaximumLength, ReturnedEntryCount, SortedBuffer);
// ServerName : LPCWSTR
// Level : DWORD
// Index : DWORD
// EntriesRequested : DWORD
// PreferredMaximumLength : DWORD
// ReturnedEntryCount : DWORD* in/out
// SortedBuffer : void** 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 Netapi32 extends StdCallLibrary {
    Netapi32 INSTANCE = Native.load("netapi32", Netapi32.class);
    int NetQueryDisplayInformation(
        WString ServerName,   // LPCWSTR
        int Level,   // DWORD
        int Index,   // DWORD
        int EntriesRequested,   // DWORD
        int PreferredMaximumLength,   // DWORD
        IntByReference ReturnedEntryCount,   // DWORD* in/out
        Pointer SortedBuffer   // void** in/out
    );
}

@[Link("netapi32")]
lib LibNETAPI32
  fun NetQueryDisplayInformation = NetQueryDisplayInformation(
    ServerName : UInt16*,   # LPCWSTR
    Level : UInt32,   # DWORD
    Index : UInt32,   # DWORD
    EntriesRequested : UInt32,   # DWORD
    PreferredMaximumLength : UInt32,   # DWORD
    ReturnedEntryCount : UInt32*,   # DWORD* in/out
    SortedBuffer : Void**   # void** 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 NetQueryDisplayInformationNative = Uint32 Function(Pointer<Utf16>, Uint32, Uint32, Uint32, Uint32, Pointer<Uint32>, Pointer<Void>);
typedef NetQueryDisplayInformationDart = int Function(Pointer<Utf16>, int, int, int, int, Pointer<Uint32>, Pointer<Void>);
final NetQueryDisplayInformation = DynamicLibrary.open('NETAPI32.dll')
    .lookupFunction<NetQueryDisplayInformationNative, NetQueryDisplayInformationDart>('NetQueryDisplayInformation');
// ServerName : LPCWSTR -> Pointer<Utf16>
// Level : DWORD -> Uint32
// Index : DWORD -> Uint32
// EntriesRequested : DWORD -> Uint32
// PreferredMaximumLength : DWORD -> Uint32
// ReturnedEntryCount : DWORD* in/out -> Pointer<Uint32>
// SortedBuffer : void** in/out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function NetQueryDisplayInformation(
  ServerName: PWideChar;   // LPCWSTR
  Level: DWORD;   // DWORD
  Index: DWORD;   // DWORD
  EntriesRequested: DWORD;   // DWORD
  PreferredMaximumLength: DWORD;   // DWORD
  ReturnedEntryCount: Pointer;   // DWORD* in/out
  SortedBuffer: Pointer   // void** in/out
): DWORD; stdcall;
  external 'NETAPI32.dll' name 'NetQueryDisplayInformation';

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

foreign import stdcall safe "NetQueryDisplayInformation"
  c_NetQueryDisplayInformation :: CWString -> Word32 -> Word32 -> Word32 -> Word32 -> Ptr Word32 -> Ptr () -> IO Word32
-- ServerName : LPCWSTR -> CWString
-- Level : DWORD -> Word32
-- Index : DWORD -> Word32
-- EntriesRequested : DWORD -> Word32
-- PreferredMaximumLength : DWORD -> Word32
-- ReturnedEntryCount : DWORD* in/out -> Ptr Word32
-- SortedBuffer : void** 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 netquerydisplayinformation =
  foreign "NetQueryDisplayInformation"
    ((ptr uint16_t) @-> uint32_t @-> uint32_t @-> uint32_t @-> uint32_t @-> (ptr uint32_t) @-> (ptr void) @-> returning uint32_t)
(* ServerName : LPCWSTR -> (ptr uint16_t) *)
(* Level : DWORD -> uint32_t *)
(* Index : DWORD -> uint32_t *)
(* EntriesRequested : DWORD -> uint32_t *)
(* PreferredMaximumLength : DWORD -> uint32_t *)
(* ReturnedEntryCount : DWORD* in/out -> (ptr uint32_t) *)
(* SortedBuffer : void** 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 netapi32 (t "NETAPI32.dll"))
(cffi:use-foreign-library netapi32)

(cffi:defcfun ("NetQueryDisplayInformation" net-query-display-information :convention :stdcall) :uint32
  (server-name (:string :encoding :utf-16le))   ; LPCWSTR
  (level :uint32)   ; DWORD
  (index :uint32)   ; DWORD
  (entries-requested :uint32)   ; DWORD
  (preferred-maximum-length :uint32)   ; DWORD
  (returned-entry-count :pointer)   ; DWORD* in/out
  (sorted-buffer :pointer))   ; void** in/out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $NetQueryDisplayInformation = Win32::API::More->new('NETAPI32',
    'DWORD NetQueryDisplayInformation(LPCWSTR ServerName, DWORD Level, DWORD Index, DWORD EntriesRequested, DWORD PreferredMaximumLength, LPVOID ReturnedEntryCount, LPVOID SortedBuffer)');
# my $ret = $NetQueryDisplayInformation->Call($ServerName, $Level, $Index, $EntriesRequested, $PreferredMaximumLength, $ReturnedEntryCount, $SortedBuffer);
# ServerName : LPCWSTR -> LPCWSTR
# Level : DWORD -> DWORD
# Index : DWORD -> DWORD
# EntriesRequested : DWORD -> DWORD
# PreferredMaximumLength : DWORD -> DWORD
# ReturnedEntryCount : DWORD* in/out -> LPVOID
# SortedBuffer : void** 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。