NetGroupGetInfo

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

DWORD NetGroupGetInfo(
    LPCWSTR servername,   // optional
    LPCWSTR groupname,
    DWORD level,
    BYTE** bufptr
);

<DllImport("NETAPI32.dll", ExactSpelling:=True)>
Public Shared Function NetGroupGetInfo(
    <MarshalAs(UnmanagedType.LPWStr)> servername As String,   ' LPCWSTR optional
    <MarshalAs(UnmanagedType.LPWStr)> groupname As String,   ' LPCWSTR
    level As UInteger,   ' DWORD
    bufptr As IntPtr   ' BYTE** out
) As UInteger
End Function

' servername : LPCWSTR optional
' groupname : LPCWSTR
' level : DWORD
' bufptr : BYTE** out
Declare PtrSafe Function NetGroupGetInfo Lib "netapi32" ( _
    ByVal servername As LongPtr, _
    ByVal groupname As LongPtr, _
    ByVal level As Long, _
    ByVal bufptr 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

NetGroupGetInfo = ctypes.windll.netapi32.NetGroupGetInfo
NetGroupGetInfo.restype = wintypes.DWORD
NetGroupGetInfo.argtypes = [
    wintypes.LPCWSTR,  # servername : LPCWSTR optional
    wintypes.LPCWSTR,  # groupname : LPCWSTR
    wintypes.DWORD,  # level : DWORD
    ctypes.c_void_p,  # bufptr : BYTE** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('NETAPI32.dll')
NetGroupGetInfo = Fiddle::Function.new(
  lib['NetGroupGetInfo'],
  [
    Fiddle::TYPE_VOIDP,  # servername : LPCWSTR optional
    Fiddle::TYPE_VOIDP,  # groupname : LPCWSTR
    -Fiddle::TYPE_INT,  # level : DWORD
    Fiddle::TYPE_VOIDP,  # bufptr : BYTE** out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "netapi32")]
extern "system" {
    fn NetGroupGetInfo(
        servername: *const u16,  // LPCWSTR optional
        groupname: *const u16,  // LPCWSTR
        level: u32,  // DWORD
        bufptr: *mut *mut u8  // BYTE** out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("NETAPI32.dll")]
public static extern uint NetGroupGetInfo([MarshalAs(UnmanagedType.LPWStr)] string servername, [MarshalAs(UnmanagedType.LPWStr)] string groupname, uint level, IntPtr bufptr);
"@
$api = Add-Type -MemberDefinition $sig -Name 'NETAPI32_NetGroupGetInfo' -Namespace Win32 -PassThru
# $api::NetGroupGetInfo(servername, groupname, level, bufptr)

#uselib "NETAPI32.dll"
#func global NetGroupGetInfo "NetGroupGetInfo" sptr, sptr, sptr, sptr
; NetGroupGetInfo servername, groupname, level, varptr(bufptr)   ; 戻り値は stat
; servername : LPCWSTR optional -> "sptr"
; groupname : LPCWSTR -> "sptr"
; level : DWORD -> "sptr"
; bufptr : BYTE** 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 NetGroupGetInfo "NetGroupGetInfo" wstr, wstr, int, var
; res = NetGroupGetInfo(servername, groupname, level, bufptr)
; servername : LPCWSTR optional -> "wstr"
; groupname : LPCWSTR -> "wstr"
; level : DWORD -> "int"
; bufptr : BYTE** 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 NetGroupGetInfo(LPCWSTR servername, LPCWSTR groupname, DWORD level, BYTE** bufptr)
#uselib "NETAPI32.dll"
#cfunc global NetGroupGetInfo "NetGroupGetInfo" wstr, wstr, int, var
; res = NetGroupGetInfo(servername, groupname, level, bufptr)
; servername : LPCWSTR optional -> "wstr"
; groupname : LPCWSTR -> "wstr"
; level : DWORD -> "int"
; bufptr : BYTE** 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")
	procNetGroupGetInfo = netapi32.NewProc("NetGroupGetInfo")
)

// servername (LPCWSTR optional), groupname (LPCWSTR), level (DWORD), bufptr (BYTE** out)
r1, _, err := procNetGroupGetInfo.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(servername))),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(groupname))),
	uintptr(level),
	uintptr(bufptr),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function NetGroupGetInfo(
  servername: PWideChar;   // LPCWSTR optional
  groupname: PWideChar;   // LPCWSTR
  level: DWORD;   // DWORD
  bufptr: Pointer   // BYTE** out
): DWORD; stdcall;
  external 'NETAPI32.dll' name 'NetGroupGetInfo';

result := DllCall("NETAPI32\NetGroupGetInfo"
    , "WStr", servername   ; LPCWSTR optional
    , "WStr", groupname   ; LPCWSTR
    , "UInt", level   ; DWORD
    , "Ptr", bufptr   ; BYTE** out
    , "UInt")   ; return: DWORD

●NetGroupGetInfo(servername, groupname, level, bufptr) = DLL("NETAPI32.dll", "dword NetGroupGetInfo(char*, char*, dword, void*)")
# 呼び出し: NetGroupGetInfo(servername, groupname, level, bufptr)
# servername : LPCWSTR optional -> "char*"
# groupname : LPCWSTR -> "char*"
# level : DWORD -> "dword"
# bufptr : BYTE** 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)。