SnmpUtilOctetsNCmp

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

INT SnmpUtilOctetsNCmp(
    AsnOctetString* pOctets1,
    AsnOctetString* pOctets2,
    DWORD nChars
);

<DllImport("snmpapi.dll", ExactSpelling:=True)>
Public Shared Function SnmpUtilOctetsNCmp(
    pOctets1 As IntPtr,   ' AsnOctetString* in/out
    pOctets2 As IntPtr,   ' AsnOctetString* in/out
    nChars As UInteger   ' DWORD
) As Integer
End Function

' pOctets1 : AsnOctetString* in/out
' pOctets2 : AsnOctetString* in/out
' nChars : DWORD
Declare PtrSafe Function SnmpUtilOctetsNCmp Lib "snmpapi" ( _
    ByVal pOctets1 As LongPtr, _
    ByVal pOctets2 As LongPtr, _
    ByVal nChars 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

SnmpUtilOctetsNCmp = ctypes.windll.snmpapi.SnmpUtilOctetsNCmp
SnmpUtilOctetsNCmp.restype = ctypes.c_int
SnmpUtilOctetsNCmp.argtypes = [
    ctypes.c_void_p,  # pOctets1 : AsnOctetString* in/out
    ctypes.c_void_p,  # pOctets2 : AsnOctetString* in/out
    wintypes.DWORD,  # nChars : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('snmpapi.dll')
SnmpUtilOctetsNCmp = Fiddle::Function.new(
  lib['SnmpUtilOctetsNCmp'],
  [
    Fiddle::TYPE_VOIDP,  # pOctets1 : AsnOctetString* in/out
    Fiddle::TYPE_VOIDP,  # pOctets2 : AsnOctetString* in/out
    -Fiddle::TYPE_INT,  # nChars : DWORD
  ],
  Fiddle::TYPE_INT)

#[link(name = "snmpapi")]
extern "system" {
    fn SnmpUtilOctetsNCmp(
        pOctets1: *mut AsnOctetString,  // AsnOctetString* in/out
        pOctets2: *mut AsnOctetString,  // AsnOctetString* in/out
        nChars: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("snmpapi.dll")]
public static extern int SnmpUtilOctetsNCmp(IntPtr pOctets1, IntPtr pOctets2, uint nChars);
"@
$api = Add-Type -MemberDefinition $sig -Name 'snmpapi_SnmpUtilOctetsNCmp' -Namespace Win32 -PassThru
# $api::SnmpUtilOctetsNCmp(pOctets1, pOctets2, nChars)

#uselib "snmpapi.dll"
#func global SnmpUtilOctetsNCmp "SnmpUtilOctetsNCmp" sptr, sptr, sptr
; SnmpUtilOctetsNCmp varptr(pOctets1), varptr(pOctets2), nChars   ; 戻り値は stat
; pOctets1 : AsnOctetString* in/out -> "sptr"
; pOctets2 : AsnOctetString* in/out -> "sptr"
; nChars : 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。

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

var (
	snmpapi = windows.NewLazySystemDLL("snmpapi.dll")
	procSnmpUtilOctetsNCmp = snmpapi.NewProc("SnmpUtilOctetsNCmp")
)

// pOctets1 (AsnOctetString* in/out), pOctets2 (AsnOctetString* in/out), nChars (DWORD)
r1, _, err := procSnmpUtilOctetsNCmp.Call(
	uintptr(pOctets1),
	uintptr(pOctets2),
	uintptr(nChars),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function SnmpUtilOctetsNCmp(
  pOctets1: Pointer;   // AsnOctetString* in/out
  pOctets2: Pointer;   // AsnOctetString* in/out
  nChars: DWORD   // DWORD
): Integer; stdcall;
  external 'snmpapi.dll' name 'SnmpUtilOctetsNCmp';

result := DllCall("snmpapi\SnmpUtilOctetsNCmp"
    , "Ptr", pOctets1   ; AsnOctetString* in/out
    , "Ptr", pOctets2   ; AsnOctetString* in/out
    , "UInt", nChars   ; DWORD
    , "Int")   ; return: INT

●SnmpUtilOctetsNCmp(pOctets1, pOctets2, nChars) = DLL("snmpapi.dll", "int SnmpUtilOctetsNCmp(void*, void*, dword)")
# 呼び出し: SnmpUtilOctetsNCmp(pOctets1, pOctets2, nChars)
# pOctets1 : AsnOctetString* in/out -> "void*"
# pOctets2 : AsnOctetString* in/out -> "void*"
# nChars : 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)。

const std = @import("std");

extern "snmpapi" fn SnmpUtilOctetsNCmp(
    pOctets1: [*c]AsnOctetString, // AsnOctetString* in/out
    pOctets2: [*c]AsnOctetString, // AsnOctetString* in/out
    nChars: u32 // DWORD
) callconv(std.os.windows.WINAPI) i32;

proc SnmpUtilOctetsNCmp(
    pOctets1: ptr AsnOctetString,  # AsnOctetString* in/out
    pOctets2: ptr AsnOctetString,  # AsnOctetString* in/out
    nChars: uint32  # DWORD
): int32 {.importc: "SnmpUtilOctetsNCmp", stdcall, dynlib: "snmpapi.dll".}

pragma(lib, "snmpapi");
extern(Windows)
int SnmpUtilOctetsNCmp(
    AsnOctetString* pOctets1,   // AsnOctetString* in/out
    AsnOctetString* pOctets2,   // AsnOctetString* in/out
    uint nChars   // DWORD
);

ccall((:SnmpUtilOctetsNCmp, "snmpapi.dll"), stdcall, Int32,
      (Ptr{AsnOctetString}, Ptr{AsnOctetString}, UInt32),
      pOctets1, pOctets2, nChars)
# pOctets1 : AsnOctetString* in/out -> Ptr{AsnOctetString}
# pOctets2 : AsnOctetString* in/out -> Ptr{AsnOctetString}
# nChars : DWORD -> UInt32
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t SnmpUtilOctetsNCmp(
    void* pOctets1,
    void* pOctets2,
    uint32_t nChars);
]]
local snmpapi = ffi.load("snmpapi")
-- snmpapi.SnmpUtilOctetsNCmp(pOctets1, pOctets2, nChars)
-- pOctets1 : AsnOctetString* in/out
-- pOctets2 : AsnOctetString* in/out
-- nChars : DWORD
-- 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。

const koffi = require('koffi');
const lib = koffi.load('snmpapi.dll');
const SnmpUtilOctetsNCmp = lib.func('__stdcall', 'SnmpUtilOctetsNCmp', 'int32_t', ['void *', 'void *', 'uint32_t']);
// SnmpUtilOctetsNCmp(pOctets1, pOctets2, nChars)
// pOctets1 : AsnOctetString* in/out -> 'void *'
// pOctets2 : AsnOctetString* in/out -> 'void *'
// nChars : DWORD -> 'uint32_t'
// 出力ポインタは koffi.out(...) で包む。構造体は koffi.struct で定義。

const lib = Deno.dlopen("snmpapi.dll", {
  SnmpUtilOctetsNCmp: { parameters: ["pointer", "pointer", "u32"], result: "i32" },
});
// lib.symbols.SnmpUtilOctetsNCmp(pOctets1, pOctets2, nChars)
// pOctets1 : AsnOctetString* in/out -> "pointer"
// pOctets2 : AsnOctetString* in/out -> "pointer"
// nChars : DWORD -> "u32"
// 文字列引数は "buffer"(NUL 終端のバイト列を Uint8Array で渡す)。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。

<?php
$ffi = FFI::cdef(<<<C
int32_t SnmpUtilOctetsNCmp(
    void* pOctets1,
    void* pOctets2,
    uint32_t nChars);
C, "snmpapi.dll");
// $ffi->SnmpUtilOctetsNCmp(pOctets1, pOctets2, nChars);
// pOctets1 : AsnOctetString* in/out
// pOctets2 : AsnOctetString* in/out
// nChars : DWORD
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。

import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;

public interface Snmpapi extends StdCallLibrary {
    Snmpapi INSTANCE = Native.load("snmpapi", Snmpapi.class);
    int SnmpUtilOctetsNCmp(
        Pointer pOctets1,   // AsnOctetString* in/out
        Pointer pOctets2,   // AsnOctetString* in/out
        int nChars   // DWORD
    );
}

@[Link("snmpapi")]
lib Libsnmpapi
  fun SnmpUtilOctetsNCmp = SnmpUtilOctetsNCmp(
    pOctets1 : AsnOctetString*,   # AsnOctetString* in/out
    pOctets2 : AsnOctetString*,   # AsnOctetString* in/out
    nChars : UInt32   # DWORD
  ) : Int32
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。

import 'dart:ffi';
import 'package:ffi/ffi.dart';

typedef SnmpUtilOctetsNCmpNative = Int32 Function(Pointer<Void>, Pointer<Void>, Uint32);
typedef SnmpUtilOctetsNCmpDart = int Function(Pointer<Void>, Pointer<Void>, int);
final SnmpUtilOctetsNCmp = DynamicLibrary.open('snmpapi.dll')
    .lookupFunction<SnmpUtilOctetsNCmpNative, SnmpUtilOctetsNCmpDart>('SnmpUtilOctetsNCmp');
// pOctets1 : AsnOctetString* in/out -> Pointer<Void>
// pOctets2 : AsnOctetString* in/out -> Pointer<Void>
// nChars : DWORD -> Uint32
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function SnmpUtilOctetsNCmp(
  pOctets1: Pointer;   // AsnOctetString* in/out
  pOctets2: Pointer;   // AsnOctetString* in/out
  nChars: DWORD   // DWORD
): Integer; stdcall;
  external 'snmpapi.dll' name 'SnmpUtilOctetsNCmp';

import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "SnmpUtilOctetsNCmp"
  c_SnmpUtilOctetsNCmp :: Ptr () -> Ptr () -> Word32 -> IO Int32
-- pOctets1 : AsnOctetString* in/out -> Ptr ()
-- pOctets2 : AsnOctetString* in/out -> Ptr ()
-- nChars : DWORD -> Word32
-- 要 GHC(Windows)。stdcall は x64 では ccall として扱われる。ブロックする API は safe 呼び出し推奨。

open Ctypes
open Foreign

let snmputiloctetsncmp =
  foreign "SnmpUtilOctetsNCmp"
    ((ptr void) @-> (ptr void) @-> uint32_t @-> returning int32_t)
(* pOctets1 : AsnOctetString* in/out -> (ptr void) *)
(* pOctets2 : AsnOctetString* in/out -> (ptr void) *)
(* nChars : DWORD -> uint32_t *)
(* foreign は cdecl 前提。x64 Windows では WINAPI と一致。構造体は ctypes structure を定義のこと。 *)

(cffi:define-foreign-library snmpapi (t "snmpapi.dll"))
(cffi:use-foreign-library snmpapi)

(cffi:defcfun ("SnmpUtilOctetsNCmp" snmp-util-octets-ncmp :convention :stdcall) :int32
  (p-octets1 :pointer)   ; AsnOctetString* in/out
  (p-octets2 :pointer)   ; AsnOctetString* in/out
  (n-chars :uint32))   ; DWORD
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $SnmpUtilOctetsNCmp = Win32::API::More->new('snmpapi',
    'int SnmpUtilOctetsNCmp(LPVOID pOctets1, LPVOID pOctets2, DWORD nChars)');
# my $ret = $SnmpUtilOctetsNCmp->Call($pOctets1, $pOctets2, $nChars);
# pOctets1 : AsnOctetString* in/out -> LPVOID
# pOctets2 : AsnOctetString* in/out -> LPVOID
# nChars : DWORD -> DWORD
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。