PeerGraphConnect

// P2PGRAPH.dll
#include <windows.h>

HRESULT PeerGraphConnect(
    void* hGraph,
    LPCWSTR pwzPeerId,   // optional
    PEER_ADDRESS* pAddress,
    ULONGLONG* pullConnectionId
);

<DllImport("P2PGRAPH.dll", ExactSpelling:=True)>
Public Shared Function PeerGraphConnect(
    hGraph As IntPtr,   ' void*
    <MarshalAs(UnmanagedType.LPWStr)> pwzPeerId As String,   ' LPCWSTR optional
    pAddress As IntPtr,   ' PEER_ADDRESS*
    <Out> ByRef pullConnectionId As ULong   ' ULONGLONG* out
) As Integer
End Function

' hGraph : void*
' pwzPeerId : LPCWSTR optional
' pAddress : PEER_ADDRESS*
' pullConnectionId : ULONGLONG* out
Declare PtrSafe Function PeerGraphConnect Lib "p2pgraph" ( _
    ByVal hGraph As LongPtr, _
    ByVal pwzPeerId As LongPtr, _
    ByVal pAddress As LongPtr, _
    ByRef pullConnectionId As LongLong) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

PeerGraphConnect = ctypes.windll.p2pgraph.PeerGraphConnect
PeerGraphConnect.restype = ctypes.c_int
PeerGraphConnect.argtypes = [
    ctypes.POINTER(None),  # hGraph : void*
    wintypes.LPCWSTR,  # pwzPeerId : LPCWSTR optional
    ctypes.c_void_p,  # pAddress : PEER_ADDRESS*
    ctypes.POINTER(ctypes.c_ulonglong),  # pullConnectionId : ULONGLONG* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('P2PGRAPH.dll')
PeerGraphConnect = Fiddle::Function.new(
  lib['PeerGraphConnect'],
  [
    Fiddle::TYPE_VOIDP,  # hGraph : void*
    Fiddle::TYPE_VOIDP,  # pwzPeerId : LPCWSTR optional
    Fiddle::TYPE_VOIDP,  # pAddress : PEER_ADDRESS*
    Fiddle::TYPE_VOIDP,  # pullConnectionId : ULONGLONG* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "p2pgraph")]
extern "system" {
    fn PeerGraphConnect(
        hGraph: *mut (),  // void*
        pwzPeerId: *const u16,  // LPCWSTR optional
        pAddress: *mut PEER_ADDRESS,  // PEER_ADDRESS*
        pullConnectionId: *mut u64  // ULONGLONG* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("P2PGRAPH.dll")]
public static extern int PeerGraphConnect(IntPtr hGraph, [MarshalAs(UnmanagedType.LPWStr)] string pwzPeerId, IntPtr pAddress, out ulong pullConnectionId);
"@
$api = Add-Type -MemberDefinition $sig -Name 'P2PGRAPH_PeerGraphConnect' -Namespace Win32 -PassThru
# $api::PeerGraphConnect(hGraph, pwzPeerId, pAddress, pullConnectionId)

#uselib "P2PGRAPH.dll"
#func global PeerGraphConnect "PeerGraphConnect" sptr, sptr, sptr, sptr
; PeerGraphConnect hGraph, pwzPeerId, varptr(pAddress), varptr(pullConnectionId)   ; 戻り値は stat
; hGraph : void* -> "sptr"
; pwzPeerId : LPCWSTR optional -> "sptr"
; pAddress : PEER_ADDRESS* -> "sptr"
; pullConnectionId : ULONGLONG* 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 (
	p2pgraph = windows.NewLazySystemDLL("P2PGRAPH.dll")
	procPeerGraphConnect = p2pgraph.NewProc("PeerGraphConnect")
)

// hGraph (void*), pwzPeerId (LPCWSTR optional), pAddress (PEER_ADDRESS*), pullConnectionId (ULONGLONG* out)
r1, _, err := procPeerGraphConnect.Call(
	uintptr(hGraph),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pwzPeerId))),
	uintptr(pAddress),
	uintptr(pullConnectionId),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function PeerGraphConnect(
  hGraph: Pointer;   // void*
  pwzPeerId: PWideChar;   // LPCWSTR optional
  pAddress: Pointer;   // PEER_ADDRESS*
  pullConnectionId: Pointer   // ULONGLONG* out
): Integer; stdcall;
  external 'P2PGRAPH.dll' name 'PeerGraphConnect';

result := DllCall("P2PGRAPH\PeerGraphConnect"
    , "Ptr", hGraph   ; void*
    , "WStr", pwzPeerId   ; LPCWSTR optional
    , "Ptr", pAddress   ; PEER_ADDRESS*
    , "Ptr", pullConnectionId   ; ULONGLONG* out
    , "Int")   ; return: HRESULT

●PeerGraphConnect(hGraph, pwzPeerId, pAddress, pullConnectionId) = DLL("P2PGRAPH.dll", "int PeerGraphConnect(void*, char*, void*, void*)")
# 呼び出し: PeerGraphConnect(hGraph, pwzPeerId, pAddress, pullConnectionId)
# hGraph : void* -> "void*"
# pwzPeerId : LPCWSTR optional -> "char*"
# pAddress : PEER_ADDRESS* -> "void*"
# pullConnectionId : ULONGLONG* 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 "p2pgraph" fn PeerGraphConnect(
    hGraph: ?*anyopaque, // void*
    pwzPeerId: [*c]const u16, // LPCWSTR optional
    pAddress: [*c]PEER_ADDRESS, // PEER_ADDRESS*
    pullConnectionId: [*c]u64 // ULONGLONG* out
) callconv(std.os.windows.WINAPI) i32;

proc PeerGraphConnect(
    hGraph: pointer,  # void*
    pwzPeerId: WideCString,  # LPCWSTR optional
    pAddress: ptr PEER_ADDRESS,  # PEER_ADDRESS*
    pullConnectionId: ptr uint64  # ULONGLONG* out
): int32 {.importc: "PeerGraphConnect", stdcall, dynlib: "P2PGRAPH.dll".}

pragma(lib, "p2pgraph");
extern(Windows)
int PeerGraphConnect(
    void* hGraph,   // void*
    const(wchar)* pwzPeerId,   // LPCWSTR optional
    PEER_ADDRESS* pAddress,   // PEER_ADDRESS*
    ulong* pullConnectionId   // ULONGLONG* out
);

ccall((:PeerGraphConnect, "P2PGRAPH.dll"), stdcall, Int32,
      (Ptr{Cvoid}, Cwstring, Ptr{PEER_ADDRESS}, Ptr{UInt64}),
      hGraph, pwzPeerId, pAddress, pullConnectionId)
# hGraph : void* -> Ptr{Cvoid}
# pwzPeerId : LPCWSTR optional -> Cwstring
# pAddress : PEER_ADDRESS* -> Ptr{PEER_ADDRESS}
# pullConnectionId : ULONGLONG* out -> Ptr{UInt64}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t PeerGraphConnect(
    void* hGraph,
    const uint16_t* pwzPeerId,
    void* pAddress,
    uint64_t* pullConnectionId);
]]
local p2pgraph = ffi.load("p2pgraph")
-- p2pgraph.PeerGraphConnect(hGraph, pwzPeerId, pAddress, pullConnectionId)
-- hGraph : void*
-- pwzPeerId : LPCWSTR optional
-- pAddress : PEER_ADDRESS*
-- pullConnectionId : ULONGLONG* 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('P2PGRAPH.dll');
const PeerGraphConnect = lib.func('__stdcall', 'PeerGraphConnect', 'int32_t', ['void *', 'str16', 'void *', 'uint64_t *']);
// PeerGraphConnect(hGraph, pwzPeerId, pAddress, pullConnectionId)
// hGraph : void* -> 'void *'
// pwzPeerId : LPCWSTR optional -> 'str16'
// pAddress : PEER_ADDRESS* -> 'void *'
// pullConnectionId : ULONGLONG* out -> 'uint64_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("P2PGRAPH.dll", {
  PeerGraphConnect: { parameters: ["pointer", "buffer", "pointer", "pointer"], result: "i32" },
});
// lib.symbols.PeerGraphConnect(hGraph, pwzPeerId, pAddress, pullConnectionId)
// hGraph : void* -> "pointer"
// pwzPeerId : LPCWSTR optional -> "buffer"
// pAddress : PEER_ADDRESS* -> "pointer"
// pullConnectionId : ULONGLONG* 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 PeerGraphConnect(
    void* hGraph,
    const uint16_t* pwzPeerId,
    void* pAddress,
    uint64_t* pullConnectionId);
C, "P2PGRAPH.dll");
// $ffi->PeerGraphConnect(hGraph, pwzPeerId, pAddress, pullConnectionId);
// hGraph : void*
// pwzPeerId : LPCWSTR optional
// pAddress : PEER_ADDRESS*
// pullConnectionId : ULONGLONG* 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 P2pgraph extends StdCallLibrary {
    P2pgraph INSTANCE = Native.load("p2pgraph", P2pgraph.class);
    int PeerGraphConnect(
        Pointer hGraph,   // void*
        WString pwzPeerId,   // LPCWSTR optional
        Pointer pAddress,   // PEER_ADDRESS*
        LongByReference pullConnectionId   // ULONGLONG* out
    );
}

@[Link("p2pgraph")]
lib LibP2PGRAPH
  fun PeerGraphConnect = PeerGraphConnect(
    hGraph : Void*,   # void*
    pwzPeerId : UInt16*,   # LPCWSTR optional
    pAddress : PEER_ADDRESS*,   # PEER_ADDRESS*
    pullConnectionId : UInt64*   # ULONGLONG* 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 PeerGraphConnectNative = Int32 Function(Pointer<Void>, Pointer<Utf16>, Pointer<Void>, Pointer<Uint64>);
typedef PeerGraphConnectDart = int Function(Pointer<Void>, Pointer<Utf16>, Pointer<Void>, Pointer<Uint64>);
final PeerGraphConnect = DynamicLibrary.open('P2PGRAPH.dll')
    .lookupFunction<PeerGraphConnectNative, PeerGraphConnectDart>('PeerGraphConnect');
// hGraph : void* -> Pointer<Void>
// pwzPeerId : LPCWSTR optional -> Pointer<Utf16>
// pAddress : PEER_ADDRESS* -> Pointer<Void>
// pullConnectionId : ULONGLONG* out -> Pointer<Uint64>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function PeerGraphConnect(
  hGraph: Pointer;   // void*
  pwzPeerId: PWideChar;   // LPCWSTR optional
  pAddress: Pointer;   // PEER_ADDRESS*
  pullConnectionId: Pointer   // ULONGLONG* out
): Integer; stdcall;
  external 'P2PGRAPH.dll' name 'PeerGraphConnect';

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

foreign import stdcall safe "PeerGraphConnect"
  c_PeerGraphConnect :: Ptr () -> CWString -> Ptr () -> Ptr Word64 -> IO Int32
-- hGraph : void* -> Ptr ()
-- pwzPeerId : LPCWSTR optional -> CWString
-- pAddress : PEER_ADDRESS* -> Ptr ()
-- pullConnectionId : ULONGLONG* out -> Ptr Word64
-- 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 peergraphconnect =
  foreign "PeerGraphConnect"
    ((ptr void) @-> (ptr uint16_t) @-> (ptr void) @-> (ptr uint64_t) @-> returning int32_t)
(* hGraph : void* -> (ptr void) *)
(* pwzPeerId : LPCWSTR optional -> (ptr uint16_t) *)
(* pAddress : PEER_ADDRESS* -> (ptr void) *)
(* pullConnectionId : ULONGLONG* out -> (ptr uint64_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 p2pgraph (t "P2PGRAPH.dll"))
(cffi:use-foreign-library p2pgraph)

(cffi:defcfun ("PeerGraphConnect" peer-graph-connect :convention :stdcall) :int32
  (h-graph :pointer)   ; void*
  (pwz-peer-id (:string :encoding :utf-16le))   ; LPCWSTR optional
  (p-address :pointer)   ; PEER_ADDRESS*
  (pull-connection-id :pointer))   ; ULONGLONG* out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $PeerGraphConnect = Win32::API::More->new('P2PGRAPH',
    'int PeerGraphConnect(LPVOID hGraph, LPCWSTR pwzPeerId, LPVOID pAddress, LPVOID pullConnectionId)');
# my $ret = $PeerGraphConnect->Call($hGraph, $pwzPeerId, $pAddress, $pullConnectionId);
# hGraph : void* -> LPVOID
# pwzPeerId : LPCWSTR optional -> LPCWSTR
# pAddress : PEER_ADDRESS* -> LPVOID
# pullConnectionId : ULONGLONG* out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。