NetGetDisplayInformationIndex

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

DWORD NetGetDisplayInformationIndex(
    LPCWSTR ServerName,
    DWORD Level,
    LPCWSTR Prefix,
    DWORD* Index
);

<DllImport("NETAPI32.dll", ExactSpelling:=True)>
Public Shared Function NetGetDisplayInformationIndex(
    <MarshalAs(UnmanagedType.LPWStr)> ServerName As String,   ' LPCWSTR
    Level As UInteger,   ' DWORD
    <MarshalAs(UnmanagedType.LPWStr)> Prefix As String,   ' LPCWSTR
    ByRef Index As UInteger   ' DWORD* in/out
) As UInteger
End Function

' ServerName : LPCWSTR
' Level : DWORD
' Prefix : LPCWSTR
' Index : DWORD* in/out
Declare PtrSafe Function NetGetDisplayInformationIndex Lib "netapi32" ( _
    ByVal ServerName As LongPtr, _
    ByVal Level As Long, _
    ByVal Prefix As LongPtr, _
    ByRef Index 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

NetGetDisplayInformationIndex = ctypes.windll.netapi32.NetGetDisplayInformationIndex
NetGetDisplayInformationIndex.restype = wintypes.DWORD
NetGetDisplayInformationIndex.argtypes = [
    wintypes.LPCWSTR,  # ServerName : LPCWSTR
    wintypes.DWORD,  # Level : DWORD
    wintypes.LPCWSTR,  # Prefix : LPCWSTR
    ctypes.POINTER(wintypes.DWORD),  # Index : DWORD* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('NETAPI32.dll')
NetGetDisplayInformationIndex = Fiddle::Function.new(
  lib['NetGetDisplayInformationIndex'],
  [
    Fiddle::TYPE_VOIDP,  # ServerName : LPCWSTR
    -Fiddle::TYPE_INT,  # Level : DWORD
    Fiddle::TYPE_VOIDP,  # Prefix : LPCWSTR
    Fiddle::TYPE_VOIDP,  # Index : DWORD* in/out
  ],
  -Fiddle::TYPE_INT)

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

$sig = @"
[DllImport("NETAPI32.dll")]
public static extern uint NetGetDisplayInformationIndex([MarshalAs(UnmanagedType.LPWStr)] string ServerName, uint Level, [MarshalAs(UnmanagedType.LPWStr)] string Prefix, ref uint Index);
"@
$api = Add-Type -MemberDefinition $sig -Name 'NETAPI32_NetGetDisplayInformationIndex' -Namespace Win32 -PassThru
# $api::NetGetDisplayInformationIndex(ServerName, Level, Prefix, Index)

#uselib "NETAPI32.dll"
#func global NetGetDisplayInformationIndex "NetGetDisplayInformationIndex" sptr, sptr, sptr, sptr
; NetGetDisplayInformationIndex ServerName, Level, Prefix, varptr(Index)   ; 戻り値は stat
; ServerName : LPCWSTR -> "sptr"
; Level : DWORD -> "sptr"
; Prefix : LPCWSTR -> "sptr"
; Index : DWORD* 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。

#uselib "NETAPI32.dll"
#cfunc global NetGetDisplayInformationIndex "NetGetDisplayInformationIndex" wstr, int, wstr, var
; res = NetGetDisplayInformationIndex(ServerName, Level, Prefix, Index)
; ServerName : LPCWSTR -> "wstr"
; Level : DWORD -> "int"
; Prefix : LPCWSTR -> "wstr"
; Index : DWORD* in/out -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

; DWORD NetGetDisplayInformationIndex(LPCWSTR ServerName, DWORD Level, LPCWSTR Prefix, DWORD* Index)
#uselib "NETAPI32.dll"
#cfunc global NetGetDisplayInformationIndex "NetGetDisplayInformationIndex" wstr, int, wstr, var
; res = NetGetDisplayInformationIndex(ServerName, Level, Prefix, Index)
; ServerName : LPCWSTR -> "wstr"
; Level : DWORD -> "int"
; Prefix : LPCWSTR -> "wstr"
; Index : DWORD* in/out -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	netapi32 = windows.NewLazySystemDLL("NETAPI32.dll")
	procNetGetDisplayInformationIndex = netapi32.NewProc("NetGetDisplayInformationIndex")
)

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

function NetGetDisplayInformationIndex(
  ServerName: PWideChar;   // LPCWSTR
  Level: DWORD;   // DWORD
  Prefix: PWideChar;   // LPCWSTR
  Index: Pointer   // DWORD* in/out
): DWORD; stdcall;
  external 'NETAPI32.dll' name 'NetGetDisplayInformationIndex';

result := DllCall("NETAPI32\NetGetDisplayInformationIndex"
    , "WStr", ServerName   ; LPCWSTR
    , "UInt", Level   ; DWORD
    , "WStr", Prefix   ; LPCWSTR
    , "Ptr", Index   ; DWORD* in/out
    , "UInt")   ; return: DWORD

●NetGetDisplayInformationIndex(ServerName, Level, Prefix, Index) = DLL("NETAPI32.dll", "dword NetGetDisplayInformationIndex(char*, dword, char*, void*)")
# 呼び出し: NetGetDisplayInformationIndex(ServerName, Level, Prefix, Index)
# ServerName : LPCWSTR -> "char*"
# Level : DWORD -> "dword"
# Prefix : LPCWSTR -> "char*"
# Index : 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)。