PeerGroupOpen

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

HRESULT PeerGroupOpen(
    LPCWSTR pwzIdentity,
    LPCWSTR pwzGroupPeerName,
    LPCWSTR pwzCloud,   // optional
    void** phGroup
);

<DllImport("P2P.dll", ExactSpelling:=True)>
Public Shared Function PeerGroupOpen(
    <MarshalAs(UnmanagedType.LPWStr)> pwzIdentity As String,   ' LPCWSTR
    <MarshalAs(UnmanagedType.LPWStr)> pwzGroupPeerName As String,   ' LPCWSTR
    <MarshalAs(UnmanagedType.LPWStr)> pwzCloud As String,   ' LPCWSTR optional
    phGroup As IntPtr   ' void** out
) As Integer
End Function

' pwzIdentity : LPCWSTR
' pwzGroupPeerName : LPCWSTR
' pwzCloud : LPCWSTR optional
' phGroup : void** out
Declare PtrSafe Function PeerGroupOpen Lib "p2p" ( _
    ByVal pwzIdentity As LongPtr, _
    ByVal pwzGroupPeerName As LongPtr, _
    ByVal pwzCloud As LongPtr, _
    ByVal phGroup 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

PeerGroupOpen = ctypes.windll.p2p.PeerGroupOpen
PeerGroupOpen.restype = ctypes.c_int
PeerGroupOpen.argtypes = [
    wintypes.LPCWSTR,  # pwzIdentity : LPCWSTR
    wintypes.LPCWSTR,  # pwzGroupPeerName : LPCWSTR
    wintypes.LPCWSTR,  # pwzCloud : LPCWSTR optional
    ctypes.c_void_p,  # phGroup : void** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('P2P.dll')
PeerGroupOpen = Fiddle::Function.new(
  lib['PeerGroupOpen'],
  [
    Fiddle::TYPE_VOIDP,  # pwzIdentity : LPCWSTR
    Fiddle::TYPE_VOIDP,  # pwzGroupPeerName : LPCWSTR
    Fiddle::TYPE_VOIDP,  # pwzCloud : LPCWSTR optional
    Fiddle::TYPE_VOIDP,  # phGroup : void** out
  ],
  Fiddle::TYPE_INT)

#[link(name = "p2p")]
extern "system" {
    fn PeerGroupOpen(
        pwzIdentity: *const u16,  // LPCWSTR
        pwzGroupPeerName: *const u16,  // LPCWSTR
        pwzCloud: *const u16,  // LPCWSTR optional
        phGroup: *mut *mut ()  // void** out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("P2P.dll")]
public static extern int PeerGroupOpen([MarshalAs(UnmanagedType.LPWStr)] string pwzIdentity, [MarshalAs(UnmanagedType.LPWStr)] string pwzGroupPeerName, [MarshalAs(UnmanagedType.LPWStr)] string pwzCloud, IntPtr phGroup);
"@
$api = Add-Type -MemberDefinition $sig -Name 'P2P_PeerGroupOpen' -Namespace Win32 -PassThru
# $api::PeerGroupOpen(pwzIdentity, pwzGroupPeerName, pwzCloud, phGroup)

#uselib "P2P.dll"
#func global PeerGroupOpen "PeerGroupOpen" sptr, sptr, sptr, sptr
; PeerGroupOpen pwzIdentity, pwzGroupPeerName, pwzCloud, phGroup   ; 戻り値は stat
; pwzIdentity : LPCWSTR -> "sptr"
; pwzGroupPeerName : LPCWSTR -> "sptr"
; pwzCloud : LPCWSTR optional -> "sptr"
; phGroup : 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。

#uselib "P2P.dll"
#cfunc global PeerGroupOpen "PeerGroupOpen" wstr, wstr, wstr, sptr
; res = PeerGroupOpen(pwzIdentity, pwzGroupPeerName, pwzCloud, phGroup)
; pwzIdentity : LPCWSTR -> "wstr"
; pwzGroupPeerName : LPCWSTR -> "wstr"
; pwzCloud : LPCWSTR optional -> "wstr"
; phGroup : void** out -> "sptr"

; HRESULT PeerGroupOpen(LPCWSTR pwzIdentity, LPCWSTR pwzGroupPeerName, LPCWSTR pwzCloud, void** phGroup)
#uselib "P2P.dll"
#cfunc global PeerGroupOpen "PeerGroupOpen" wstr, wstr, wstr, intptr
; res = PeerGroupOpen(pwzIdentity, pwzGroupPeerName, pwzCloud, phGroup)
; pwzIdentity : LPCWSTR -> "wstr"
; pwzGroupPeerName : LPCWSTR -> "wstr"
; pwzCloud : LPCWSTR optional -> "wstr"
; phGroup : void** out -> "intptr"

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

var (
	p2p = windows.NewLazySystemDLL("P2P.dll")
	procPeerGroupOpen = p2p.NewProc("PeerGroupOpen")
)

// pwzIdentity (LPCWSTR), pwzGroupPeerName (LPCWSTR), pwzCloud (LPCWSTR optional), phGroup (void** out)
r1, _, err := procPeerGroupOpen.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pwzIdentity))),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pwzGroupPeerName))),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pwzCloud))),
	uintptr(phGroup),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function PeerGroupOpen(
  pwzIdentity: PWideChar;   // LPCWSTR
  pwzGroupPeerName: PWideChar;   // LPCWSTR
  pwzCloud: PWideChar;   // LPCWSTR optional
  phGroup: Pointer   // void** out
): Integer; stdcall;
  external 'P2P.dll' name 'PeerGroupOpen';

result := DllCall("P2P\PeerGroupOpen"
    , "WStr", pwzIdentity   ; LPCWSTR
    , "WStr", pwzGroupPeerName   ; LPCWSTR
    , "WStr", pwzCloud   ; LPCWSTR optional
    , "Ptr", phGroup   ; void** out
    , "Int")   ; return: HRESULT

●PeerGroupOpen(pwzIdentity, pwzGroupPeerName, pwzCloud, phGroup) = DLL("P2P.dll", "int PeerGroupOpen(char*, char*, char*, void*)")
# 呼び出し: PeerGroupOpen(pwzIdentity, pwzGroupPeerName, pwzCloud, phGroup)
# pwzIdentity : LPCWSTR -> "char*"
# pwzGroupPeerName : LPCWSTR -> "char*"
# pwzCloud : LPCWSTR optional -> "char*"
# phGroup : 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 PeerGroupOpen(
    pwzIdentity: [*c]const u16, // LPCWSTR
    pwzGroupPeerName: [*c]const u16, // LPCWSTR
    pwzCloud: [*c]const u16, // LPCWSTR optional
    phGroup: ?*anyopaque // void** out
) callconv(std.os.windows.WINAPI) i32;

proc PeerGroupOpen(
    pwzIdentity: WideCString,  # LPCWSTR
    pwzGroupPeerName: WideCString,  # LPCWSTR
    pwzCloud: WideCString,  # LPCWSTR optional
    phGroup: pointer  # void** out
): int32 {.importc: "PeerGroupOpen", stdcall, dynlib: "P2P.dll".}

pragma(lib, "p2p");
extern(Windows)
int PeerGroupOpen(
    const(wchar)* pwzIdentity,   // LPCWSTR
    const(wchar)* pwzGroupPeerName,   // LPCWSTR
    const(wchar)* pwzCloud,   // LPCWSTR optional
    void** phGroup   // void** out
);

ccall((:PeerGroupOpen, "P2P.dll"), stdcall, Int32,
      (Cwstring, Cwstring, Cwstring, Ptr{Cvoid}),
      pwzIdentity, pwzGroupPeerName, pwzCloud, phGroup)
# pwzIdentity : LPCWSTR -> Cwstring
# pwzGroupPeerName : LPCWSTR -> Cwstring
# pwzCloud : LPCWSTR optional -> Cwstring
# phGroup : 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 PeerGroupOpen(
    const uint16_t* pwzIdentity,
    const uint16_t* pwzGroupPeerName,
    const uint16_t* pwzCloud,
    void** phGroup);
]]
local p2p = ffi.load("p2p")
-- p2p.PeerGroupOpen(pwzIdentity, pwzGroupPeerName, pwzCloud, phGroup)
-- pwzIdentity : LPCWSTR
-- pwzGroupPeerName : LPCWSTR
-- pwzCloud : LPCWSTR optional
-- phGroup : 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 PeerGroupOpen = lib.func('__stdcall', 'PeerGroupOpen', 'int32_t', ['str16', 'str16', 'str16', 'void *']);
// PeerGroupOpen(pwzIdentity, pwzGroupPeerName, pwzCloud, phGroup)
// pwzIdentity : LPCWSTR -> 'str16'
// pwzGroupPeerName : LPCWSTR -> 'str16'
// pwzCloud : LPCWSTR optional -> 'str16'
// phGroup : 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", {
  PeerGroupOpen: { parameters: ["buffer", "buffer", "buffer", "pointer"], result: "i32" },
});
// lib.symbols.PeerGroupOpen(pwzIdentity, pwzGroupPeerName, pwzCloud, phGroup)
// pwzIdentity : LPCWSTR -> "buffer"
// pwzGroupPeerName : LPCWSTR -> "buffer"
// pwzCloud : LPCWSTR optional -> "buffer"
// phGroup : 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 PeerGroupOpen(
    const uint16_t* pwzIdentity,
    const uint16_t* pwzGroupPeerName,
    const uint16_t* pwzCloud,
    void** phGroup);
C, "P2P.dll");
// $ffi->PeerGroupOpen(pwzIdentity, pwzGroupPeerName, pwzCloud, phGroup);
// pwzIdentity : LPCWSTR
// pwzGroupPeerName : LPCWSTR
// pwzCloud : LPCWSTR optional
// phGroup : 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 PeerGroupOpen(
        WString pwzIdentity,   // LPCWSTR
        WString pwzGroupPeerName,   // LPCWSTR
        WString pwzCloud,   // LPCWSTR optional
        Pointer phGroup   // void** out
    );
}

@[Link("p2p")]
lib LibP2P
  fun PeerGroupOpen = PeerGroupOpen(
    pwzIdentity : UInt16*,   # LPCWSTR
    pwzGroupPeerName : UInt16*,   # LPCWSTR
    pwzCloud : UInt16*,   # LPCWSTR optional
    phGroup : 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 PeerGroupOpenNative = Int32 Function(Pointer<Utf16>, Pointer<Utf16>, Pointer<Utf16>, Pointer<Void>);
typedef PeerGroupOpenDart = int Function(Pointer<Utf16>, Pointer<Utf16>, Pointer<Utf16>, Pointer<Void>);
final PeerGroupOpen = DynamicLibrary.open('P2P.dll')
    .lookupFunction<PeerGroupOpenNative, PeerGroupOpenDart>('PeerGroupOpen');
// pwzIdentity : LPCWSTR -> Pointer<Utf16>
// pwzGroupPeerName : LPCWSTR -> Pointer<Utf16>
// pwzCloud : LPCWSTR optional -> Pointer<Utf16>
// phGroup : void** out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function PeerGroupOpen(
  pwzIdentity: PWideChar;   // LPCWSTR
  pwzGroupPeerName: PWideChar;   // LPCWSTR
  pwzCloud: PWideChar;   // LPCWSTR optional
  phGroup: Pointer   // void** out
): Integer; stdcall;
  external 'P2P.dll' name 'PeerGroupOpen';

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

foreign import stdcall safe "PeerGroupOpen"
  c_PeerGroupOpen :: CWString -> CWString -> CWString -> Ptr () -> IO Int32
-- pwzIdentity : LPCWSTR -> CWString
-- pwzGroupPeerName : LPCWSTR -> CWString
-- pwzCloud : LPCWSTR optional -> CWString
-- phGroup : 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 peergroupopen =
  foreign "PeerGroupOpen"
    ((ptr uint16_t) @-> (ptr uint16_t) @-> (ptr uint16_t) @-> (ptr void) @-> returning int32_t)
(* pwzIdentity : LPCWSTR -> (ptr uint16_t) *)
(* pwzGroupPeerName : LPCWSTR -> (ptr uint16_t) *)
(* pwzCloud : LPCWSTR optional -> (ptr uint16_t) *)
(* phGroup : 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 ("PeerGroupOpen" peer-group-open :convention :stdcall) :int32
  (pwz-identity (:string :encoding :utf-16le))   ; LPCWSTR
  (pwz-group-peer-name (:string :encoding :utf-16le))   ; LPCWSTR
  (pwz-cloud (:string :encoding :utf-16le))   ; LPCWSTR optional
  (ph-group :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 $PeerGroupOpen = Win32::API::More->new('P2P',
    'int PeerGroupOpen(LPCWSTR pwzIdentity, LPCWSTR pwzGroupPeerName, LPCWSTR pwzCloud, LPVOID phGroup)');
# my $ret = $PeerGroupOpen->Call($pwzIdentity, $pwzGroupPeerName, $pwzCloud, $phGroup);
# pwzIdentity : LPCWSTR -> LPCWSTR
# pwzGroupPeerName : LPCWSTR -> LPCWSTR
# pwzCloud : LPCWSTR optional -> LPCWSTR
# phGroup : 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。