PeerGraphEnumConnections

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

HRESULT PeerGraphEnumConnections(
    void* hGraph,
    DWORD dwFlags,
    void** phPeerEnum
);

<DllImport("P2PGRAPH.dll", ExactSpelling:=True)>
Public Shared Function PeerGraphEnumConnections(
    hGraph As IntPtr,   ' void*
    dwFlags As UInteger,   ' DWORD
    phPeerEnum As IntPtr   ' void** out
) As Integer
End Function

' hGraph : void*
' dwFlags : DWORD
' phPeerEnum : void** out
Declare PtrSafe Function PeerGraphEnumConnections Lib "p2pgraph" ( _
    ByVal hGraph As LongPtr, _
    ByVal dwFlags As Long, _
    ByVal phPeerEnum 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

PeerGraphEnumConnections = ctypes.windll.p2pgraph.PeerGraphEnumConnections
PeerGraphEnumConnections.restype = ctypes.c_int
PeerGraphEnumConnections.argtypes = [
    ctypes.POINTER(None),  # hGraph : void*
    wintypes.DWORD,  # dwFlags : DWORD
    ctypes.c_void_p,  # phPeerEnum : void** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('P2PGRAPH.dll')
PeerGraphEnumConnections = Fiddle::Function.new(
  lib['PeerGraphEnumConnections'],
  [
    Fiddle::TYPE_VOIDP,  # hGraph : void*
    -Fiddle::TYPE_INT,  # dwFlags : DWORD
    Fiddle::TYPE_VOIDP,  # phPeerEnum : void** out
  ],
  Fiddle::TYPE_INT)

#[link(name = "p2pgraph")]
extern "system" {
    fn PeerGraphEnumConnections(
        hGraph: *mut (),  // void*
        dwFlags: u32,  // DWORD
        phPeerEnum: *mut *mut ()  // void** out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("P2PGRAPH.dll")]
public static extern int PeerGraphEnumConnections(IntPtr hGraph, uint dwFlags, IntPtr phPeerEnum);
"@
$api = Add-Type -MemberDefinition $sig -Name 'P2PGRAPH_PeerGraphEnumConnections' -Namespace Win32 -PassThru
# $api::PeerGraphEnumConnections(hGraph, dwFlags, phPeerEnum)

#uselib "P2PGRAPH.dll"
#func global PeerGraphEnumConnections "PeerGraphEnumConnections" sptr, sptr, sptr
; PeerGraphEnumConnections hGraph, dwFlags, phPeerEnum   ; 戻り値は stat
; hGraph : void* -> "sptr"
; dwFlags : DWORD -> "sptr"
; phPeerEnum : 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 "P2PGRAPH.dll"
#cfunc global PeerGraphEnumConnections "PeerGraphEnumConnections" sptr, int, sptr
; res = PeerGraphEnumConnections(hGraph, dwFlags, phPeerEnum)
; hGraph : void* -> "sptr"
; dwFlags : DWORD -> "int"
; phPeerEnum : void** out -> "sptr"

; HRESULT PeerGraphEnumConnections(void* hGraph, DWORD dwFlags, void** phPeerEnum)
#uselib "P2PGRAPH.dll"
#cfunc global PeerGraphEnumConnections "PeerGraphEnumConnections" intptr, int, intptr
; res = PeerGraphEnumConnections(hGraph, dwFlags, phPeerEnum)
; hGraph : void* -> "intptr"
; dwFlags : DWORD -> "int"
; phPeerEnum : void** out -> "intptr"

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

var (
	p2pgraph = windows.NewLazySystemDLL("P2PGRAPH.dll")
	procPeerGraphEnumConnections = p2pgraph.NewProc("PeerGraphEnumConnections")
)

// hGraph (void*), dwFlags (DWORD), phPeerEnum (void** out)
r1, _, err := procPeerGraphEnumConnections.Call(
	uintptr(hGraph),
	uintptr(dwFlags),
	uintptr(phPeerEnum),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function PeerGraphEnumConnections(
  hGraph: Pointer;   // void*
  dwFlags: DWORD;   // DWORD
  phPeerEnum: Pointer   // void** out
): Integer; stdcall;
  external 'P2PGRAPH.dll' name 'PeerGraphEnumConnections';

result := DllCall("P2PGRAPH\PeerGraphEnumConnections"
    , "Ptr", hGraph   ; void*
    , "UInt", dwFlags   ; DWORD
    , "Ptr", phPeerEnum   ; void** out
    , "Int")   ; return: HRESULT

●PeerGraphEnumConnections(hGraph, dwFlags, phPeerEnum) = DLL("P2PGRAPH.dll", "int PeerGraphEnumConnections(void*, dword, void*)")
# 呼び出し: PeerGraphEnumConnections(hGraph, dwFlags, phPeerEnum)
# hGraph : void* -> "void*"
# dwFlags : DWORD -> "dword"
# phPeerEnum : 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 "p2pgraph" fn PeerGraphEnumConnections(
    hGraph: ?*anyopaque, // void*
    dwFlags: u32, // DWORD
    phPeerEnum: ?*anyopaque // void** out
) callconv(std.os.windows.WINAPI) i32;

proc PeerGraphEnumConnections(
    hGraph: pointer,  # void*
    dwFlags: uint32,  # DWORD
    phPeerEnum: pointer  # void** out
): int32 {.importc: "PeerGraphEnumConnections", stdcall, dynlib: "P2PGRAPH.dll".}

pragma(lib, "p2pgraph");
extern(Windows)
int PeerGraphEnumConnections(
    void* hGraph,   // void*
    uint dwFlags,   // DWORD
    void** phPeerEnum   // void** out
);

ccall((:PeerGraphEnumConnections, "P2PGRAPH.dll"), stdcall, Int32,
      (Ptr{Cvoid}, UInt32, Ptr{Cvoid}),
      hGraph, dwFlags, phPeerEnum)
# hGraph : void* -> Ptr{Cvoid}
# dwFlags : DWORD -> UInt32
# phPeerEnum : 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 PeerGraphEnumConnections(
    void* hGraph,
    uint32_t dwFlags,
    void** phPeerEnum);
]]
local p2pgraph = ffi.load("p2pgraph")
-- p2pgraph.PeerGraphEnumConnections(hGraph, dwFlags, phPeerEnum)
-- hGraph : void*
-- dwFlags : DWORD
-- phPeerEnum : 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('P2PGRAPH.dll');
const PeerGraphEnumConnections = lib.func('__stdcall', 'PeerGraphEnumConnections', 'int32_t', ['void *', 'uint32_t', 'void *']);
// PeerGraphEnumConnections(hGraph, dwFlags, phPeerEnum)
// hGraph : void* -> 'void *'
// dwFlags : DWORD -> 'uint32_t'
// phPeerEnum : 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("P2PGRAPH.dll", {
  PeerGraphEnumConnections: { parameters: ["pointer", "u32", "pointer"], result: "i32" },
});
// lib.symbols.PeerGraphEnumConnections(hGraph, dwFlags, phPeerEnum)
// hGraph : void* -> "pointer"
// dwFlags : DWORD -> "u32"
// phPeerEnum : 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 PeerGraphEnumConnections(
    void* hGraph,
    uint32_t dwFlags,
    void** phPeerEnum);
C, "P2PGRAPH.dll");
// $ffi->PeerGraphEnumConnections(hGraph, dwFlags, phPeerEnum);
// hGraph : void*
// dwFlags : DWORD
// phPeerEnum : 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 P2pgraph extends StdCallLibrary {
    P2pgraph INSTANCE = Native.load("p2pgraph", P2pgraph.class);
    int PeerGraphEnumConnections(
        Pointer hGraph,   // void*
        int dwFlags,   // DWORD
        Pointer phPeerEnum   // void** out
    );
}

@[Link("p2pgraph")]
lib LibP2PGRAPH
  fun PeerGraphEnumConnections = PeerGraphEnumConnections(
    hGraph : Void*,   # void*
    dwFlags : UInt32,   # DWORD
    phPeerEnum : 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 PeerGraphEnumConnectionsNative = Int32 Function(Pointer<Void>, Uint32, Pointer<Void>);
typedef PeerGraphEnumConnectionsDart = int Function(Pointer<Void>, int, Pointer<Void>);
final PeerGraphEnumConnections = DynamicLibrary.open('P2PGRAPH.dll')
    .lookupFunction<PeerGraphEnumConnectionsNative, PeerGraphEnumConnectionsDart>('PeerGraphEnumConnections');
// hGraph : void* -> Pointer<Void>
// dwFlags : DWORD -> Uint32
// phPeerEnum : void** out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function PeerGraphEnumConnections(
  hGraph: Pointer;   // void*
  dwFlags: DWORD;   // DWORD
  phPeerEnum: Pointer   // void** out
): Integer; stdcall;
  external 'P2PGRAPH.dll' name 'PeerGraphEnumConnections';

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

foreign import stdcall safe "PeerGraphEnumConnections"
  c_PeerGraphEnumConnections :: Ptr () -> Word32 -> Ptr () -> IO Int32
-- hGraph : void* -> Ptr ()
-- dwFlags : DWORD -> Word32
-- phPeerEnum : 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 peergraphenumconnections =
  foreign "PeerGraphEnumConnections"
    ((ptr void) @-> uint32_t @-> (ptr void) @-> returning int32_t)
(* hGraph : void* -> (ptr void) *)
(* dwFlags : DWORD -> uint32_t *)
(* phPeerEnum : 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 p2pgraph (t "P2PGRAPH.dll"))
(cffi:use-foreign-library p2pgraph)

(cffi:defcfun ("PeerGraphEnumConnections" peer-graph-enum-connections :convention :stdcall) :int32
  (h-graph :pointer)   ; void*
  (dw-flags :uint32)   ; DWORD
  (ph-peer-enum :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 $PeerGraphEnumConnections = Win32::API::More->new('P2PGRAPH',
    'int PeerGraphEnumConnections(LPVOID hGraph, DWORD dwFlags, LPVOID phPeerEnum)');
# my $ret = $PeerGraphEnumConnections->Call($hGraph, $dwFlags, $phPeerEnum);
# hGraph : void* -> LPVOID
# dwFlags : DWORD -> DWORD
# phPeerEnum : 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。