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PeerGraphGetNodeInfo

関数
指定したピアグラフノードの情報を取得する。
DLLP2PGRAPH.dll呼出規約winapi対応OSWindows XP 以降
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シグネチャ

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

HRESULT PeerGraphGetNodeInfo(
    void* hGraph,
    ULONGLONG ullNodeId,
    PEER_NODE_INFO** ppNodeInfo
);

パラメーター

名前型方向説明
hGraphvoid*inノード情報を取得する対象のグラフを表すハンドル。
ullNodeIdULONGLONGin情報を取得するノードを識別するノードID。
ppNodeInfoPEER_NODE_INFO**out取得したPEER_NODE_INFO構造体を受け取る出力。PeerFreeDataで解放する。

戻り値の型: HRESULT

各言語での呼び出し定義

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

HRESULT PeerGraphGetNodeInfo(
    void* hGraph,
    ULONGLONG ullNodeId,
    PEER_NODE_INFO** ppNodeInfo
);
[DllImport("P2PGRAPH.dll", ExactSpelling = true)]
static extern int PeerGraphGetNodeInfo(
    IntPtr hGraph,   // void*
    ulong ullNodeId,   // ULONGLONG
    IntPtr ppNodeInfo   // PEER_NODE_INFO** out
);
<DllImport("P2PGRAPH.dll", ExactSpelling:=True)>
Public Shared Function PeerGraphGetNodeInfo(
    hGraph As IntPtr,   ' void*
    ullNodeId As ULong,   ' ULONGLONG
    ppNodeInfo As IntPtr   ' PEER_NODE_INFO** out
) As Integer
End Function
' hGraph : void*
' ullNodeId : ULONGLONG
' ppNodeInfo : PEER_NODE_INFO** out
Declare PtrSafe Function PeerGraphGetNodeInfo Lib "p2pgraph" ( _
    ByVal hGraph As LongPtr, _
    ByVal ullNodeId As LongLong, _
    ByVal ppNodeInfo 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

PeerGraphGetNodeInfo = ctypes.windll.p2pgraph.PeerGraphGetNodeInfo
PeerGraphGetNodeInfo.restype = ctypes.c_int
PeerGraphGetNodeInfo.argtypes = [
    ctypes.POINTER(None),  # hGraph : void*
    ctypes.c_ulonglong,  # ullNodeId : ULONGLONG
    ctypes.c_void_p,  # ppNodeInfo : PEER_NODE_INFO** out
]
require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('P2PGRAPH.dll')
PeerGraphGetNodeInfo = Fiddle::Function.new(
  lib['PeerGraphGetNodeInfo'],
  [
    Fiddle::TYPE_VOIDP,  # hGraph : void*
    -Fiddle::TYPE_LONG_LONG,  # ullNodeId : ULONGLONG
    Fiddle::TYPE_VOIDP,  # ppNodeInfo : PEER_NODE_INFO** out
  ],
  Fiddle::TYPE_INT)
#[link(name = "p2pgraph")]
extern "system" {
    fn PeerGraphGetNodeInfo(
        hGraph: *mut (),  // void*
        ullNodeId: u64,  // ULONGLONG
        ppNodeInfo: *mut *mut PEER_NODE_INFO  // PEER_NODE_INFO** out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.
$sig = @"
[DllImport("P2PGRAPH.dll")]
public static extern int PeerGraphGetNodeInfo(IntPtr hGraph, ulong ullNodeId, IntPtr ppNodeInfo);
"@
$api = Add-Type -MemberDefinition $sig -Name 'P2PGRAPH_PeerGraphGetNodeInfo' -Namespace Win32 -PassThru
# $api::PeerGraphGetNodeInfo(hGraph, ullNodeId, ppNodeInfo)
#uselib "P2PGRAPH.dll"
#func global PeerGraphGetNodeInfo "PeerGraphGetNodeInfo" sptr, sptr, sptr
; PeerGraphGetNodeInfo hGraph, ullNodeId, varptr(ppNodeInfo)   ; 戻り値は stat
; hGraph : void* -> "sptr"
; ullNodeId : ULONGLONG -> "sptr"
; ppNodeInfo : PEER_NODE_INFO** out -> "sptr"
; ※HSP3.7は int64 引数(64bit値渡し)に非対応です。
; ※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。
出力引数: 
#uselib "P2PGRAPH.dll"
#cfunc global PeerGraphGetNodeInfo "PeerGraphGetNodeInfo" sptr, int64, var
; res = PeerGraphGetNodeInfo(hGraph, ullNodeId, ppNodeInfo)
; hGraph : void* -> "sptr"
; ullNodeId : ULONGLONG -> "int64"
; ppNodeInfo : PEER_NODE_INFO** out -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。
; ※int64 引数の DLL 値渡しは x64 ランタイム(hsp3_64)のみ対応(x86 は未対応)。
出力引数: 
; HRESULT PeerGraphGetNodeInfo(void* hGraph, ULONGLONG ullNodeId, PEER_NODE_INFO** ppNodeInfo)
#uselib "P2PGRAPH.dll"
#cfunc global PeerGraphGetNodeInfo "PeerGraphGetNodeInfo" intptr, int64, var
; res = PeerGraphGetNodeInfo(hGraph, ullNodeId, ppNodeInfo)
; hGraph : void* -> "intptr"
; ullNodeId : ULONGLONG -> "int64"
; ppNodeInfo : PEER_NODE_INFO** out -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。
import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	p2pgraph = windows.NewLazySystemDLL("P2PGRAPH.dll")
	procPeerGraphGetNodeInfo = p2pgraph.NewProc("PeerGraphGetNodeInfo")
)

// hGraph (void*), ullNodeId (ULONGLONG), ppNodeInfo (PEER_NODE_INFO** out)
r1, _, err := procPeerGraphGetNodeInfo.Call(
	uintptr(hGraph),
	uintptr(ullNodeId),
	uintptr(ppNodeInfo),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT
function PeerGraphGetNodeInfo(
  hGraph: Pointer;   // void*
  ullNodeId: UInt64;   // ULONGLONG
  ppNodeInfo: Pointer   // PEER_NODE_INFO** out
): Integer; stdcall;
  external 'P2PGRAPH.dll' name 'PeerGraphGetNodeInfo';
result := DllCall("P2PGRAPH\PeerGraphGetNodeInfo"
    , "Ptr", hGraph   ; void*
    , "Int64", ullNodeId   ; ULONGLONG
    , "Ptr", ppNodeInfo   ; PEER_NODE_INFO** out
    , "Int")   ; return: HRESULT
●PeerGraphGetNodeInfo(hGraph, ullNodeId, ppNodeInfo) = DLL("P2PGRAPH.dll", "int PeerGraphGetNodeInfo(void*, qword, void*)")
# 呼び出し: PeerGraphGetNodeInfo(hGraph, ullNodeId, ppNodeInfo)
# hGraph : void* -> "void*"
# ullNodeId : ULONGLONG -> "qword"
# ppNodeInfo : PEER_NODE_INFO** 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 PeerGraphGetNodeInfo(
    hGraph: ?*anyopaque, // void*
    ullNodeId: u64, // ULONGLONG
    ppNodeInfo: [*c][*c]PEER_NODE_INFO // PEER_NODE_INFO** out
) callconv(std.os.windows.WINAPI) i32;
proc PeerGraphGetNodeInfo(
    hGraph: pointer,  # void*
    ullNodeId: uint64,  # ULONGLONG
    ppNodeInfo: ptr PEER_NODE_INFO  # PEER_NODE_INFO** out
): int32 {.importc: "PeerGraphGetNodeInfo", stdcall, dynlib: "P2PGRAPH.dll".}
pragma(lib, "p2pgraph");
extern(Windows)
int PeerGraphGetNodeInfo(
    void* hGraph,   // void*
    ulong ullNodeId,   // ULONGLONG
    PEER_NODE_INFO** ppNodeInfo   // PEER_NODE_INFO** out
);
ccall((:PeerGraphGetNodeInfo, "P2PGRAPH.dll"), stdcall, Int32,
      (Ptr{Cvoid}, UInt64, Ptr{PEER_NODE_INFO}),
      hGraph, ullNodeId, ppNodeInfo)
# hGraph : void* -> Ptr{Cvoid}
# ullNodeId : ULONGLONG -> UInt64
# ppNodeInfo : PEER_NODE_INFO** out -> Ptr{PEER_NODE_INFO}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。
local ffi = require("ffi")
ffi.cdef[[
int32_t PeerGraphGetNodeInfo(
    void* hGraph,
    uint64_t ullNodeId,
    void* ppNodeInfo);
]]
local p2pgraph = ffi.load("p2pgraph")
-- p2pgraph.PeerGraphGetNodeInfo(hGraph, ullNodeId, ppNodeInfo)
-- hGraph : void*
-- ullNodeId : ULONGLONG
-- ppNodeInfo : PEER_NODE_INFO** 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 PeerGraphGetNodeInfo = lib.func('__stdcall', 'PeerGraphGetNodeInfo', 'int32_t', ['void *', 'uint64_t', 'void *']);
// PeerGraphGetNodeInfo(hGraph, ullNodeId, ppNodeInfo)
// hGraph : void* -> 'void *'
// ullNodeId : ULONGLONG -> 'uint64_t'
// ppNodeInfo : PEER_NODE_INFO** 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", {
  PeerGraphGetNodeInfo: { parameters: ["pointer", "u64", "pointer"], result: "i32" },
});
// lib.symbols.PeerGraphGetNodeInfo(hGraph, ullNodeId, ppNodeInfo)
// hGraph : void* -> "pointer"
// ullNodeId : ULONGLONG -> "u64"
// ppNodeInfo : PEER_NODE_INFO** 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 PeerGraphGetNodeInfo(
    void* hGraph,
    uint64_t ullNodeId,
    void* ppNodeInfo);
C, "P2PGRAPH.dll");
// $ffi->PeerGraphGetNodeInfo(hGraph, ullNodeId, ppNodeInfo);
// hGraph : void*
// ullNodeId : ULONGLONG
// ppNodeInfo : PEER_NODE_INFO** 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 PeerGraphGetNodeInfo(
        Pointer hGraph,   // void*
        long ullNodeId,   // ULONGLONG
        Pointer ppNodeInfo   // PEER_NODE_INFO** out
    );
}
@[Link("p2pgraph")]
lib LibP2PGRAPH
  fun PeerGraphGetNodeInfo = PeerGraphGetNodeInfo(
    hGraph : Void*,   # void*
    ullNodeId : UInt64,   # ULONGLONG
    ppNodeInfo : PEER_NODE_INFO**   # PEER_NODE_INFO** 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 PeerGraphGetNodeInfoNative = Int32 Function(Pointer<Void>, Uint64, Pointer<Void>);
typedef PeerGraphGetNodeInfoDart = int Function(Pointer<Void>, int, Pointer<Void>);
final PeerGraphGetNodeInfo = DynamicLibrary.open('P2PGRAPH.dll')
    .lookupFunction<PeerGraphGetNodeInfoNative, PeerGraphGetNodeInfoDart>('PeerGraphGetNodeInfo');
// hGraph : void* -> Pointer<Void>
// ullNodeId : ULONGLONG -> Uint64
// ppNodeInfo : PEER_NODE_INFO** out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。
{$mode objfpc}{$H+}
function PeerGraphGetNodeInfo(
  hGraph: Pointer;   // void*
  ullNodeId: UInt64;   // ULONGLONG
  ppNodeInfo: Pointer   // PEER_NODE_INFO** out
): Integer; stdcall;
  external 'P2PGRAPH.dll' name 'PeerGraphGetNodeInfo';
import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "PeerGraphGetNodeInfo"
  c_PeerGraphGetNodeInfo :: Ptr () -> Word64 -> Ptr () -> IO Int32
-- hGraph : void* -> Ptr ()
-- ullNodeId : ULONGLONG -> Word64
-- ppNodeInfo : PEER_NODE_INFO** 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 peergraphgetnodeinfo =
  foreign "PeerGraphGetNodeInfo"
    ((ptr void) @-> uint64_t @-> (ptr void) @-> returning int32_t)
(* hGraph : void* -> (ptr void) *)
(* ullNodeId : ULONGLONG -> uint64_t *)
(* ppNodeInfo : PEER_NODE_INFO** 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 ("PeerGraphGetNodeInfo" peer-graph-get-node-info :convention :stdcall) :int32
  (h-graph :pointer)   ; void*
  (ull-node-id :uint64)   ; ULONGLONG
  (pp-node-info :pointer))   ; PEER_NODE_INFO** out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。
use Win32::API;
my $PeerGraphGetNodeInfo = Win32::API::More->new('P2PGRAPH',
    'int PeerGraphGetNodeInfo(LPVOID hGraph, UINT64 ullNodeId, LPVOID ppNodeInfo)');
# my $ret = $PeerGraphGetNodeInfo->Call($hGraph, $ullNodeId, $ppNodeInfo);
# hGraph : void* -> LPVOID
# ullNodeId : ULONGLONG -> UINT64
# ppNodeInfo : PEER_NODE_INFO** out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。

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