SnmpListenEx

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

DWORD SnmpListenEx(
    INT_PTR hEntity,
    DWORD lStatus,
    DWORD nUseEntityAddr
);

<DllImport("wsnmp32.dll", ExactSpelling:=True)>
Public Shared Function SnmpListenEx(
    hEntity As IntPtr,   ' INT_PTR
    lStatus As UInteger,   ' DWORD
    nUseEntityAddr As UInteger   ' DWORD
) As UInteger
End Function

' hEntity : INT_PTR
' lStatus : DWORD
' nUseEntityAddr : DWORD
Declare PtrSafe Function SnmpListenEx Lib "wsnmp32" ( _
    ByVal hEntity As LongPtr, _
    ByVal lStatus As Long, _
    ByVal nUseEntityAddr 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

SnmpListenEx = ctypes.windll.wsnmp32.SnmpListenEx
SnmpListenEx.restype = wintypes.DWORD
SnmpListenEx.argtypes = [
    ctypes.c_ssize_t,  # hEntity : INT_PTR
    wintypes.DWORD,  # lStatus : DWORD
    wintypes.DWORD,  # nUseEntityAddr : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('wsnmp32.dll')
SnmpListenEx = Fiddle::Function.new(
  lib['SnmpListenEx'],
  [
    Fiddle::TYPE_INTPTR_T,  # hEntity : INT_PTR
    -Fiddle::TYPE_INT,  # lStatus : DWORD
    -Fiddle::TYPE_INT,  # nUseEntityAddr : DWORD
  ],
  -Fiddle::TYPE_INT)

#[link(name = "wsnmp32")]
extern "system" {
    fn SnmpListenEx(
        hEntity: isize,  // INT_PTR
        lStatus: u32,  // DWORD
        nUseEntityAddr: u32  // DWORD
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("wsnmp32.dll")]
public static extern uint SnmpListenEx(IntPtr hEntity, uint lStatus, uint nUseEntityAddr);
"@
$api = Add-Type -MemberDefinition $sig -Name 'wsnmp32_SnmpListenEx' -Namespace Win32 -PassThru
# $api::SnmpListenEx(hEntity, lStatus, nUseEntityAddr)

#uselib "wsnmp32.dll"
#func global SnmpListenEx "SnmpListenEx" sptr, sptr, sptr
; SnmpListenEx hEntity, lStatus, nUseEntityAddr   ; 戻り値は stat
; hEntity : INT_PTR -> "sptr"
; lStatus : DWORD -> "sptr"
; nUseEntityAddr : DWORD -> "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 SnmpListenEx "SnmpListenEx" sptr, int, int
; res = SnmpListenEx(hEntity, lStatus, nUseEntityAddr)
; hEntity : INT_PTR -> "sptr"
; lStatus : DWORD -> "int"
; nUseEntityAddr : DWORD -> "int"

; DWORD SnmpListenEx(INT_PTR hEntity, DWORD lStatus, DWORD nUseEntityAddr)
#uselib "wsnmp32.dll"
#cfunc global SnmpListenEx "SnmpListenEx" intptr, int, int
; res = SnmpListenEx(hEntity, lStatus, nUseEntityAddr)
; hEntity : INT_PTR -> "intptr"
; lStatus : DWORD -> "int"
; nUseEntityAddr : DWORD -> "int"

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

var (
	wsnmp32 = windows.NewLazySystemDLL("wsnmp32.dll")
	procSnmpListenEx = wsnmp32.NewProc("SnmpListenEx")
)

// hEntity (INT_PTR), lStatus (DWORD), nUseEntityAddr (DWORD)
r1, _, err := procSnmpListenEx.Call(
	uintptr(hEntity),
	uintptr(lStatus),
	uintptr(nUseEntityAddr),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function SnmpListenEx(
  hEntity: NativeInt;   // INT_PTR
  lStatus: DWORD;   // DWORD
  nUseEntityAddr: DWORD   // DWORD
): DWORD; stdcall;
  external 'wsnmp32.dll' name 'SnmpListenEx';

result := DllCall("wsnmp32\SnmpListenEx"
    , "Ptr", hEntity   ; INT_PTR
    , "UInt", lStatus   ; DWORD
    , "UInt", nUseEntityAddr   ; DWORD
    , "UInt")   ; return: DWORD

●SnmpListenEx(hEntity, lStatus, nUseEntityAddr) = DLL("wsnmp32.dll", "dword SnmpListenEx(int, dword, dword)")
# 呼び出し: SnmpListenEx(hEntity, lStatus, nUseEntityAddr)
# hEntity : INT_PTR -> "int"
# lStatus : DWORD -> "dword"
# nUseEntityAddr : DWORD -> "dword"
# 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)。