SnmpGetTimeout

// wsnmp32.dll
#include <windows.h>

DWORD SnmpGetTimeout(
    INT_PTR hEntity,
    DWORD* nPolicyTimeout,
    DWORD* nActualTimeout
);

<DllImport("wsnmp32.dll", ExactSpelling:=True)>
Public Shared Function SnmpGetTimeout(
    hEntity As IntPtr,   ' INT_PTR
    ByRef nPolicyTimeout As UInteger,   ' DWORD* in/out
    ByRef nActualTimeout As UInteger   ' DWORD* in/out
) As UInteger
End Function

' hEntity : INT_PTR
' nPolicyTimeout : DWORD* in/out
' nActualTimeout : DWORD* in/out
Declare PtrSafe Function SnmpGetTimeout Lib "wsnmp32" ( _
    ByVal hEntity As LongPtr, _
    ByRef nPolicyTimeout As Long, _
    ByRef nActualTimeout 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

SnmpGetTimeout = ctypes.windll.wsnmp32.SnmpGetTimeout
SnmpGetTimeout.restype = wintypes.DWORD
SnmpGetTimeout.argtypes = [
    ctypes.c_ssize_t,  # hEntity : INT_PTR
    ctypes.POINTER(wintypes.DWORD),  # nPolicyTimeout : DWORD* in/out
    ctypes.POINTER(wintypes.DWORD),  # nActualTimeout : DWORD* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('wsnmp32.dll')
SnmpGetTimeout = Fiddle::Function.new(
  lib['SnmpGetTimeout'],
  [
    Fiddle::TYPE_INTPTR_T,  # hEntity : INT_PTR
    Fiddle::TYPE_VOIDP,  # nPolicyTimeout : DWORD* in/out
    Fiddle::TYPE_VOIDP,  # nActualTimeout : DWORD* in/out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "wsnmp32")]
extern "system" {
    fn SnmpGetTimeout(
        hEntity: isize,  // INT_PTR
        nPolicyTimeout: *mut u32,  // DWORD* in/out
        nActualTimeout: *mut u32  // DWORD* in/out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("wsnmp32.dll")]
public static extern uint SnmpGetTimeout(IntPtr hEntity, ref uint nPolicyTimeout, ref uint nActualTimeout);
"@
$api = Add-Type -MemberDefinition $sig -Name 'wsnmp32_SnmpGetTimeout' -Namespace Win32 -PassThru
# $api::SnmpGetTimeout(hEntity, nPolicyTimeout, nActualTimeout)

#uselib "wsnmp32.dll"
#func global SnmpGetTimeout "SnmpGetTimeout" sptr, sptr, sptr
; SnmpGetTimeout hEntity, varptr(nPolicyTimeout), varptr(nActualTimeout)   ; 戻り値は stat
; hEntity : INT_PTR -> "sptr"
; nPolicyTimeout : DWORD* in/out -> "sptr"
; nActualTimeout : 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 "wsnmp32.dll"
#cfunc global SnmpGetTimeout "SnmpGetTimeout" sptr, var, var
; res = SnmpGetTimeout(hEntity, nPolicyTimeout, nActualTimeout)
; hEntity : INT_PTR -> "sptr"
; nPolicyTimeout : DWORD* in/out -> "var"
; nActualTimeout : 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 SnmpGetTimeout(INT_PTR hEntity, DWORD* nPolicyTimeout, DWORD* nActualTimeout)
#uselib "wsnmp32.dll"
#cfunc global SnmpGetTimeout "SnmpGetTimeout" intptr, var, var
; res = SnmpGetTimeout(hEntity, nPolicyTimeout, nActualTimeout)
; hEntity : INT_PTR -> "intptr"
; nPolicyTimeout : DWORD* in/out -> "var"
; nActualTimeout : 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 (
	wsnmp32 = windows.NewLazySystemDLL("wsnmp32.dll")
	procSnmpGetTimeout = wsnmp32.NewProc("SnmpGetTimeout")
)

// hEntity (INT_PTR), nPolicyTimeout (DWORD* in/out), nActualTimeout (DWORD* in/out)
r1, _, err := procSnmpGetTimeout.Call(
	uintptr(hEntity),
	uintptr(nPolicyTimeout),
	uintptr(nActualTimeout),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function SnmpGetTimeout(
  hEntity: NativeInt;   // INT_PTR
  nPolicyTimeout: Pointer;   // DWORD* in/out
  nActualTimeout: Pointer   // DWORD* in/out
): DWORD; stdcall;
  external 'wsnmp32.dll' name 'SnmpGetTimeout';

result := DllCall("wsnmp32\SnmpGetTimeout"
    , "Ptr", hEntity   ; INT_PTR
    , "Ptr", nPolicyTimeout   ; DWORD* in/out
    , "Ptr", nActualTimeout   ; DWORD* in/out
    , "UInt")   ; return: DWORD

●SnmpGetTimeout(hEntity, nPolicyTimeout, nActualTimeout) = DLL("wsnmp32.dll", "dword SnmpGetTimeout(int, void*, void*)")
# 呼び出し: SnmpGetTimeout(hEntity, nPolicyTimeout, nActualTimeout)
# hEntity : INT_PTR -> "int"
# nPolicyTimeout : DWORD* in/out -> "void*"
# nActualTimeout : 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)。