PeerGroupRegisterEvent

// P2P.dll
#include <windows.h>

HRESULT PeerGroupRegisterEvent(
    void* hGroup,
    HANDLE hEvent,
    DWORD cEventRegistration,
    PEER_GROUP_EVENT_REGISTRATION* pEventRegistrations,
    void** phPeerEvent
);

<DllImport("P2P.dll", ExactSpelling:=True)>
Public Shared Function PeerGroupRegisterEvent(
    hGroup As IntPtr,   ' void*
    hEvent As IntPtr,   ' HANDLE
    cEventRegistration As UInteger,   ' DWORD
    pEventRegistrations As IntPtr,   ' PEER_GROUP_EVENT_REGISTRATION*
    phPeerEvent As IntPtr   ' void** out
) As Integer
End Function

' hGroup : void*
' hEvent : HANDLE
' cEventRegistration : DWORD
' pEventRegistrations : PEER_GROUP_EVENT_REGISTRATION*
' phPeerEvent : void** out
Declare PtrSafe Function PeerGroupRegisterEvent Lib "p2p" ( _
    ByVal hGroup As LongPtr, _
    ByVal hEvent As LongPtr, _
    ByVal cEventRegistration As Long, _
    ByVal pEventRegistrations As LongPtr, _
    ByVal phPeerEvent 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

PeerGroupRegisterEvent = ctypes.windll.p2p.PeerGroupRegisterEvent
PeerGroupRegisterEvent.restype = ctypes.c_int
PeerGroupRegisterEvent.argtypes = [
    ctypes.POINTER(None),  # hGroup : void*
    wintypes.HANDLE,  # hEvent : HANDLE
    wintypes.DWORD,  # cEventRegistration : DWORD
    ctypes.c_void_p,  # pEventRegistrations : PEER_GROUP_EVENT_REGISTRATION*
    ctypes.c_void_p,  # phPeerEvent : void** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('P2P.dll')
PeerGroupRegisterEvent = Fiddle::Function.new(
  lib['PeerGroupRegisterEvent'],
  [
    Fiddle::TYPE_VOIDP,  # hGroup : void*
    Fiddle::TYPE_VOIDP,  # hEvent : HANDLE
    -Fiddle::TYPE_INT,  # cEventRegistration : DWORD
    Fiddle::TYPE_VOIDP,  # pEventRegistrations : PEER_GROUP_EVENT_REGISTRATION*
    Fiddle::TYPE_VOIDP,  # phPeerEvent : void** out
  ],
  Fiddle::TYPE_INT)

#[link(name = "p2p")]
extern "system" {
    fn PeerGroupRegisterEvent(
        hGroup: *mut (),  // void*
        hEvent: *mut core::ffi::c_void,  // HANDLE
        cEventRegistration: u32,  // DWORD
        pEventRegistrations: *mut PEER_GROUP_EVENT_REGISTRATION,  // PEER_GROUP_EVENT_REGISTRATION*
        phPeerEvent: *mut *mut ()  // void** out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("P2P.dll")]
public static extern int PeerGroupRegisterEvent(IntPtr hGroup, IntPtr hEvent, uint cEventRegistration, IntPtr pEventRegistrations, IntPtr phPeerEvent);
"@
$api = Add-Type -MemberDefinition $sig -Name 'P2P_PeerGroupRegisterEvent' -Namespace Win32 -PassThru
# $api::PeerGroupRegisterEvent(hGroup, hEvent, cEventRegistration, pEventRegistrations, phPeerEvent)

#uselib "P2P.dll"
#func global PeerGroupRegisterEvent "PeerGroupRegisterEvent" sptr, sptr, sptr, sptr, sptr
; PeerGroupRegisterEvent hGroup, hEvent, cEventRegistration, varptr(pEventRegistrations), phPeerEvent   ; 戻り値は stat
; hGroup : void* -> "sptr"
; hEvent : HANDLE -> "sptr"
; cEventRegistration : DWORD -> "sptr"
; pEventRegistrations : PEER_GROUP_EVENT_REGISTRATION* -> "sptr"
; phPeerEvent : void** 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。

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

var (
	p2p = windows.NewLazySystemDLL("P2P.dll")
	procPeerGroupRegisterEvent = p2p.NewProc("PeerGroupRegisterEvent")
)

// hGroup (void*), hEvent (HANDLE), cEventRegistration (DWORD), pEventRegistrations (PEER_GROUP_EVENT_REGISTRATION*), phPeerEvent (void** out)
r1, _, err := procPeerGroupRegisterEvent.Call(
	uintptr(hGroup),
	uintptr(hEvent),
	uintptr(cEventRegistration),
	uintptr(pEventRegistrations),
	uintptr(phPeerEvent),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function PeerGroupRegisterEvent(
  hGroup: Pointer;   // void*
  hEvent: THandle;   // HANDLE
  cEventRegistration: DWORD;   // DWORD
  pEventRegistrations: Pointer;   // PEER_GROUP_EVENT_REGISTRATION*
  phPeerEvent: Pointer   // void** out
): Integer; stdcall;
  external 'P2P.dll' name 'PeerGroupRegisterEvent';

result := DllCall("P2P\PeerGroupRegisterEvent"
    , "Ptr", hGroup   ; void*
    , "Ptr", hEvent   ; HANDLE
    , "UInt", cEventRegistration   ; DWORD
    , "Ptr", pEventRegistrations   ; PEER_GROUP_EVENT_REGISTRATION*
    , "Ptr", phPeerEvent   ; void** out
    , "Int")   ; return: HRESULT

●PeerGroupRegisterEvent(hGroup, hEvent, cEventRegistration, pEventRegistrations, phPeerEvent) = DLL("P2P.dll", "int PeerGroupRegisterEvent(void*, void*, dword, void*, void*)")
# 呼び出し: PeerGroupRegisterEvent(hGroup, hEvent, cEventRegistration, pEventRegistrations, phPeerEvent)
# hGroup : void* -> "void*"
# hEvent : HANDLE -> "void*"
# cEventRegistration : DWORD -> "dword"
# pEventRegistrations : PEER_GROUP_EVENT_REGISTRATION* -> "void*"
# phPeerEvent : void** 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)。

const std = @import("std");

extern "p2p" fn PeerGroupRegisterEvent(
    hGroup: ?*anyopaque, // void*
    hEvent: ?*anyopaque, // HANDLE
    cEventRegistration: u32, // DWORD
    pEventRegistrations: [*c]PEER_GROUP_EVENT_REGISTRATION, // PEER_GROUP_EVENT_REGISTRATION*
    phPeerEvent: ?*anyopaque // void** out
) callconv(std.os.windows.WINAPI) i32;

proc PeerGroupRegisterEvent(
    hGroup: pointer,  # void*
    hEvent: pointer,  # HANDLE
    cEventRegistration: uint32,  # DWORD
    pEventRegistrations: ptr PEER_GROUP_EVENT_REGISTRATION,  # PEER_GROUP_EVENT_REGISTRATION*
    phPeerEvent: pointer  # void** out
): int32 {.importc: "PeerGroupRegisterEvent", stdcall, dynlib: "P2P.dll".}

pragma(lib, "p2p");
extern(Windows)
int PeerGroupRegisterEvent(
    void* hGroup,   // void*
    void* hEvent,   // HANDLE
    uint cEventRegistration,   // DWORD
    PEER_GROUP_EVENT_REGISTRATION* pEventRegistrations,   // PEER_GROUP_EVENT_REGISTRATION*
    void** phPeerEvent   // void** out
);

ccall((:PeerGroupRegisterEvent, "P2P.dll"), stdcall, Int32,
      (Ptr{Cvoid}, Ptr{Cvoid}, UInt32, Ptr{PEER_GROUP_EVENT_REGISTRATION}, Ptr{Cvoid}),
      hGroup, hEvent, cEventRegistration, pEventRegistrations, phPeerEvent)
# hGroup : void* -> Ptr{Cvoid}
# hEvent : HANDLE -> Ptr{Cvoid}
# cEventRegistration : DWORD -> UInt32
# pEventRegistrations : PEER_GROUP_EVENT_REGISTRATION* -> Ptr{PEER_GROUP_EVENT_REGISTRATION}
# phPeerEvent : void** out -> Ptr{Cvoid}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t PeerGroupRegisterEvent(
    void* hGroup,
    void* hEvent,
    uint32_t cEventRegistration,
    void* pEventRegistrations,
    void** phPeerEvent);
]]
local p2p = ffi.load("p2p")
-- p2p.PeerGroupRegisterEvent(hGroup, hEvent, cEventRegistration, pEventRegistrations, phPeerEvent)
-- hGroup : void*
-- hEvent : HANDLE
-- cEventRegistration : DWORD
-- pEventRegistrations : PEER_GROUP_EVENT_REGISTRATION*
-- phPeerEvent : void** out
-- 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('P2P.dll');
const PeerGroupRegisterEvent = lib.func('__stdcall', 'PeerGroupRegisterEvent', 'int32_t', ['void *', 'void *', 'uint32_t', 'void *', 'void *']);
// PeerGroupRegisterEvent(hGroup, hEvent, cEventRegistration, pEventRegistrations, phPeerEvent)
// hGroup : void* -> 'void *'
// hEvent : HANDLE -> 'void *'
// cEventRegistration : DWORD -> 'uint32_t'
// pEventRegistrations : PEER_GROUP_EVENT_REGISTRATION* -> 'void *'
// phPeerEvent : void** out -> 'void *'
// 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("P2P.dll", {
  PeerGroupRegisterEvent: { parameters: ["pointer", "pointer", "u32", "pointer", "pointer"], result: "i32" },
});
// lib.symbols.PeerGroupRegisterEvent(hGroup, hEvent, cEventRegistration, pEventRegistrations, phPeerEvent)
// hGroup : void* -> "pointer"
// hEvent : HANDLE -> "pointer"
// cEventRegistration : DWORD -> "u32"
// pEventRegistrations : PEER_GROUP_EVENT_REGISTRATION* -> "pointer"
// phPeerEvent : void** out -> "pointer"
// 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 PeerGroupRegisterEvent(
    void* hGroup,
    void* hEvent,
    uint32_t cEventRegistration,
    void* pEventRegistrations,
    void** phPeerEvent);
C, "P2P.dll");
// $ffi->PeerGroupRegisterEvent(hGroup, hEvent, cEventRegistration, pEventRegistrations, phPeerEvent);
// hGroup : void*
// hEvent : HANDLE
// cEventRegistration : DWORD
// pEventRegistrations : PEER_GROUP_EVENT_REGISTRATION*
// phPeerEvent : void** out
// 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 P2p extends StdCallLibrary {
    P2p INSTANCE = Native.load("p2p", P2p.class);
    int PeerGroupRegisterEvent(
        Pointer hGroup,   // void*
        Pointer hEvent,   // HANDLE
        int cEventRegistration,   // DWORD
        Pointer pEventRegistrations,   // PEER_GROUP_EVENT_REGISTRATION*
        Pointer phPeerEvent   // void** out
    );
}

@[Link("p2p")]
lib LibP2P
  fun PeerGroupRegisterEvent = PeerGroupRegisterEvent(
    hGroup : Void*,   # void*
    hEvent : Void*,   # HANDLE
    cEventRegistration : UInt32,   # DWORD
    pEventRegistrations : PEER_GROUP_EVENT_REGISTRATION*,   # PEER_GROUP_EVENT_REGISTRATION*
    phPeerEvent : Void**   # void** out
  ) : 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 PeerGroupRegisterEventNative = Int32 Function(Pointer<Void>, Pointer<Void>, Uint32, Pointer<Void>, Pointer<Void>);
typedef PeerGroupRegisterEventDart = int Function(Pointer<Void>, Pointer<Void>, int, Pointer<Void>, Pointer<Void>);
final PeerGroupRegisterEvent = DynamicLibrary.open('P2P.dll')
    .lookupFunction<PeerGroupRegisterEventNative, PeerGroupRegisterEventDart>('PeerGroupRegisterEvent');
// hGroup : void* -> Pointer<Void>
// hEvent : HANDLE -> Pointer<Void>
// cEventRegistration : DWORD -> Uint32
// pEventRegistrations : PEER_GROUP_EVENT_REGISTRATION* -> Pointer<Void>
// phPeerEvent : void** out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function PeerGroupRegisterEvent(
  hGroup: Pointer;   // void*
  hEvent: THandle;   // HANDLE
  cEventRegistration: DWORD;   // DWORD
  pEventRegistrations: Pointer;   // PEER_GROUP_EVENT_REGISTRATION*
  phPeerEvent: Pointer   // void** out
): Integer; stdcall;
  external 'P2P.dll' name 'PeerGroupRegisterEvent';

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

foreign import stdcall safe "PeerGroupRegisterEvent"
  c_PeerGroupRegisterEvent :: Ptr () -> Ptr () -> Word32 -> Ptr () -> Ptr () -> IO Int32
-- hGroup : void* -> Ptr ()
-- hEvent : HANDLE -> Ptr ()
-- cEventRegistration : DWORD -> Word32
-- pEventRegistrations : PEER_GROUP_EVENT_REGISTRATION* -> Ptr ()
-- phPeerEvent : void** out -> Ptr ()
-- 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 peergroupregisterevent =
  foreign "PeerGroupRegisterEvent"
    ((ptr void) @-> (ptr void) @-> uint32_t @-> (ptr void) @-> (ptr void) @-> returning int32_t)
(* hGroup : void* -> (ptr void) *)
(* hEvent : HANDLE -> (ptr void) *)
(* cEventRegistration : DWORD -> uint32_t *)
(* pEventRegistrations : PEER_GROUP_EVENT_REGISTRATION* -> (ptr void) *)
(* phPeerEvent : void** out -> (ptr void) *)
(* 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 p2p (t "P2P.dll"))
(cffi:use-foreign-library p2p)

(cffi:defcfun ("PeerGroupRegisterEvent" peer-group-register-event :convention :stdcall) :int32
  (h-group :pointer)   ; void*
  (h-event :pointer)   ; HANDLE
  (c-event-registration :uint32)   ; DWORD
  (p-event-registrations :pointer)   ; PEER_GROUP_EVENT_REGISTRATION*
  (ph-peer-event :pointer))   ; void** out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $PeerGroupRegisterEvent = Win32::API::More->new('P2P',
    'int PeerGroupRegisterEvent(LPVOID hGroup, HANDLE hEvent, DWORD cEventRegistration, LPVOID pEventRegistrations, LPVOID phPeerEvent)');
# my $ret = $PeerGroupRegisterEvent->Call($hGroup, $hEvent, $cEventRegistration, $pEventRegistrations, $phPeerEvent);
# hGroup : void* -> LPVOID
# hEvent : HANDLE -> HANDLE
# cEventRegistration : DWORD -> DWORD
# pEventRegistrations : PEER_GROUP_EVENT_REGISTRATION* -> LPVOID
# phPeerEvent : void** out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。