NetStatisticsGet

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

DWORD NetStatisticsGet(
    CHAR* ServerName,
    CHAR* Service,
    DWORD Level,
    DWORD Options,
    BYTE** Buffer
);

<DllImport("NETAPI32.dll", ExactSpelling:=True)>
Public Shared Function NetStatisticsGet(
    ServerName As IntPtr,   ' CHAR*
    Service As IntPtr,   ' CHAR*
    Level As UInteger,   ' DWORD
    Options As UInteger,   ' DWORD
    Buffer As IntPtr   ' BYTE** out
) As UInteger
End Function

' ServerName : CHAR*
' Service : CHAR*
' Level : DWORD
' Options : DWORD
' Buffer : BYTE** out
Declare PtrSafe Function NetStatisticsGet Lib "netapi32" ( _
    ByVal ServerName As LongPtr, _
    ByVal Service As LongPtr, _
    ByVal Level As Long, _
    ByVal Options As Long, _
    ByVal Buffer 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

NetStatisticsGet = ctypes.windll.netapi32.NetStatisticsGet
NetStatisticsGet.restype = wintypes.DWORD
NetStatisticsGet.argtypes = [
    ctypes.POINTER(ctypes.c_byte),  # ServerName : CHAR*
    ctypes.POINTER(ctypes.c_byte),  # Service : CHAR*
    wintypes.DWORD,  # Level : DWORD
    wintypes.DWORD,  # Options : DWORD
    ctypes.c_void_p,  # Buffer : BYTE** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('NETAPI32.dll')
NetStatisticsGet = Fiddle::Function.new(
  lib['NetStatisticsGet'],
  [
    Fiddle::TYPE_VOIDP,  # ServerName : CHAR*
    Fiddle::TYPE_VOIDP,  # Service : CHAR*
    -Fiddle::TYPE_INT,  # Level : DWORD
    -Fiddle::TYPE_INT,  # Options : DWORD
    Fiddle::TYPE_VOIDP,  # Buffer : BYTE** out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "netapi32")]
extern "system" {
    fn NetStatisticsGet(
        ServerName: *mut i8,  // CHAR*
        Service: *mut i8,  // CHAR*
        Level: u32,  // DWORD
        Options: u32,  // DWORD
        Buffer: *mut *mut u8  // BYTE** out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("NETAPI32.dll")]
public static extern uint NetStatisticsGet(IntPtr ServerName, IntPtr Service, uint Level, uint Options, IntPtr Buffer);
"@
$api = Add-Type -MemberDefinition $sig -Name 'NETAPI32_NetStatisticsGet' -Namespace Win32 -PassThru
# $api::NetStatisticsGet(ServerName, Service, Level, Options, Buffer)

#uselib "NETAPI32.dll"
#func global NetStatisticsGet "NetStatisticsGet" sptr, sptr, sptr, sptr, sptr
; NetStatisticsGet varptr(ServerName), varptr(Service), Level, Options, varptr(Buffer)   ; 戻り値は stat
; ServerName : CHAR* -> "sptr"
; Service : CHAR* -> "sptr"
; Level : DWORD -> "sptr"
; Options : DWORD -> "sptr"
; Buffer : 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 NetStatisticsGet "NetStatisticsGet" var, var, int, int, var
; res = NetStatisticsGet(ServerName, Service, Level, Options, Buffer)
; ServerName : CHAR* -> "var"
; Service : CHAR* -> "var"
; Level : DWORD -> "int"
; Options : DWORD -> "int"
; Buffer : 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 NetStatisticsGet(CHAR* ServerName, CHAR* Service, DWORD Level, DWORD Options, BYTE** Buffer)
#uselib "NETAPI32.dll"
#cfunc global NetStatisticsGet "NetStatisticsGet" var, var, int, int, var
; res = NetStatisticsGet(ServerName, Service, Level, Options, Buffer)
; ServerName : CHAR* -> "var"
; Service : CHAR* -> "var"
; Level : DWORD -> "int"
; Options : DWORD -> "int"
; Buffer : 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")
	procNetStatisticsGet = netapi32.NewProc("NetStatisticsGet")
)

// ServerName (CHAR*), Service (CHAR*), Level (DWORD), Options (DWORD), Buffer (BYTE** out)
r1, _, err := procNetStatisticsGet.Call(
	uintptr(ServerName),
	uintptr(Service),
	uintptr(Level),
	uintptr(Options),
	uintptr(Buffer),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function NetStatisticsGet(
  ServerName: Pointer;   // CHAR*
  Service: Pointer;   // CHAR*
  Level: DWORD;   // DWORD
  Options: DWORD;   // DWORD
  Buffer: Pointer   // BYTE** out
): DWORD; stdcall;
  external 'NETAPI32.dll' name 'NetStatisticsGet';

result := DllCall("NETAPI32\NetStatisticsGet"
    , "Ptr", ServerName   ; CHAR*
    , "Ptr", Service   ; CHAR*
    , "UInt", Level   ; DWORD
    , "UInt", Options   ; DWORD
    , "Ptr", Buffer   ; BYTE** out
    , "UInt")   ; return: DWORD

●NetStatisticsGet(ServerName, Service, Level, Options, Buffer) = DLL("NETAPI32.dll", "dword NetStatisticsGet(void*, void*, dword, dword, void*)")
# 呼び出し: NetStatisticsGet(ServerName, Service, Level, Options, Buffer)
# ServerName : CHAR* -> "void*"
# Service : CHAR* -> "void*"
# Level : DWORD -> "dword"
# Options : DWORD -> "dword"
# Buffer : 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)。