DsGetDcSiteCoverageA

// NETAPI32.dll  (ANSI / -A)
#include <windows.h>

DWORD DsGetDcSiteCoverageA(
    LPCSTR ServerName,   // optional
    DWORD* EntryCount,
    LPSTR** SiteNames
);

<DllImport("NETAPI32.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function DsGetDcSiteCoverageA(
    <MarshalAs(UnmanagedType.LPStr)> ServerName As String,   ' LPCSTR optional
    <Out> ByRef EntryCount As UInteger,   ' DWORD* out
    SiteNames As IntPtr   ' LPSTR** out
) As UInteger
End Function

' ServerName : LPCSTR optional
' EntryCount : DWORD* out
' SiteNames : LPSTR** out
Declare PtrSafe Function DsGetDcSiteCoverageA Lib "netapi32" ( _
    ByVal ServerName As String, _
    ByRef EntryCount As Long, _
    ByVal SiteNames 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

DsGetDcSiteCoverageA = ctypes.windll.netapi32.DsGetDcSiteCoverageA
DsGetDcSiteCoverageA.restype = wintypes.DWORD
DsGetDcSiteCoverageA.argtypes = [
    wintypes.LPCSTR,  # ServerName : LPCSTR optional
    ctypes.POINTER(wintypes.DWORD),  # EntryCount : DWORD* out
    ctypes.c_void_p,  # SiteNames : LPSTR** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('NETAPI32.dll')
DsGetDcSiteCoverageA = Fiddle::Function.new(
  lib['DsGetDcSiteCoverageA'],
  [
    Fiddle::TYPE_VOIDP,  # ServerName : LPCSTR optional
    Fiddle::TYPE_VOIDP,  # EntryCount : DWORD* out
    Fiddle::TYPE_VOIDP,  # SiteNames : LPSTR** out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "netapi32")]
extern "system" {
    fn DsGetDcSiteCoverageA(
        ServerName: *const u8,  // LPCSTR optional
        EntryCount: *mut u32,  // DWORD* out
        SiteNames: *mut *mut *mut u8  // LPSTR** out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("NETAPI32.dll", CharSet = CharSet.Ansi)]
public static extern uint DsGetDcSiteCoverageA([MarshalAs(UnmanagedType.LPStr)] string ServerName, out uint EntryCount, IntPtr SiteNames);
"@
$api = Add-Type -MemberDefinition $sig -Name 'NETAPI32_DsGetDcSiteCoverageA' -Namespace Win32 -PassThru
# $api::DsGetDcSiteCoverageA(ServerName, EntryCount, SiteNames)

#uselib "NETAPI32.dll"
#func global DsGetDcSiteCoverageA "DsGetDcSiteCoverageA" sptr, sptr, sptr
; DsGetDcSiteCoverageA ServerName, varptr(EntryCount), varptr(SiteNames)   ; 戻り値は stat
; ServerName : LPCSTR optional -> "sptr"
; EntryCount : DWORD* out -> "sptr"
; SiteNames : LPSTR** 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 DsGetDcSiteCoverageA "DsGetDcSiteCoverageA" str, var, var
; res = DsGetDcSiteCoverageA(ServerName, EntryCount, SiteNames)
; ServerName : LPCSTR optional -> "str"
; EntryCount : DWORD* out -> "var"
; SiteNames : LPSTR** 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 DsGetDcSiteCoverageA(LPCSTR ServerName, DWORD* EntryCount, LPSTR** SiteNames)
#uselib "NETAPI32.dll"
#cfunc global DsGetDcSiteCoverageA "DsGetDcSiteCoverageA" str, var, var
; res = DsGetDcSiteCoverageA(ServerName, EntryCount, SiteNames)
; ServerName : LPCSTR optional -> "str"
; EntryCount : DWORD* out -> "var"
; SiteNames : LPSTR** 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")
	procDsGetDcSiteCoverageA = netapi32.NewProc("DsGetDcSiteCoverageA")
)

// ServerName (LPCSTR optional), EntryCount (DWORD* out), SiteNames (LPSTR** out)
r1, _, err := procDsGetDcSiteCoverageA.Call(
	uintptr(unsafe.Pointer(windows.BytePtrFromString(ServerName))),
	uintptr(EntryCount),
	uintptr(SiteNames),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function DsGetDcSiteCoverageA(
  ServerName: PAnsiChar;   // LPCSTR optional
  EntryCount: Pointer;   // DWORD* out
  SiteNames: PPAnsiChar   // LPSTR** out
): DWORD; stdcall;
  external 'NETAPI32.dll' name 'DsGetDcSiteCoverageA';

result := DllCall("NETAPI32\DsGetDcSiteCoverageA"
    , "AStr", ServerName   ; LPCSTR optional
    , "Ptr", EntryCount   ; DWORD* out
    , "Ptr", SiteNames   ; LPSTR** out
    , "UInt")   ; return: DWORD

●DsGetDcSiteCoverageA(ServerName, EntryCount, SiteNames) = DLL("NETAPI32.dll", "dword DsGetDcSiteCoverageA(char*, void*, void*)")
# 呼び出し: DsGetDcSiteCoverageA(ServerName, EntryCount, SiteNames)
# ServerName : LPCSTR optional -> "char*"
# EntryCount : DWORD* out -> "void*"
# SiteNames : LPSTR** 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)。