ホーム › System.Threading › WaitForMultipleObjects
WaitForMultipleObjects
関数複数オブジェクトのいずれかまたは全部のシグナルを待機する。
シグネチャ
// KERNEL32.dll
#include <windows.h>
WAIT_EVENT WaitForMultipleObjects(
DWORD nCount,
const HANDLE* lpHandles,
BOOL bWaitAll,
DWORD dwMilliseconds
);パラメーター
| 名前 | 型 | 方向 |
|---|---|---|
| nCount | DWORD | in |
| lpHandles | HANDLE* | in |
| bWaitAll | BOOL | in |
| dwMilliseconds | DWORD | in |
戻り値の型: WAIT_EVENT
各言語での呼び出し定義
// KERNEL32.dll
#include <windows.h>
WAIT_EVENT WaitForMultipleObjects(
DWORD nCount,
const HANDLE* lpHandles,
BOOL bWaitAll,
DWORD dwMilliseconds
);[DllImport("KERNEL32.dll", SetLastError = true, ExactSpelling = true)]
static extern uint WaitForMultipleObjects(
uint nCount, // DWORD
IntPtr lpHandles, // HANDLE*
bool bWaitAll, // BOOL
uint dwMilliseconds // DWORD
);<DllImport("KERNEL32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function WaitForMultipleObjects(
nCount As UInteger, ' DWORD
lpHandles As IntPtr, ' HANDLE*
bWaitAll As Boolean, ' BOOL
dwMilliseconds As UInteger ' DWORD
) As UInteger
End Function' nCount : DWORD
' lpHandles : HANDLE*
' bWaitAll : BOOL
' dwMilliseconds : DWORD
Declare PtrSafe Function WaitForMultipleObjects Lib "kernel32" ( _
ByVal nCount As Long, _
ByVal lpHandles As LongPtr, _
ByVal bWaitAll As Long, _
ByVal dwMilliseconds As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。import ctypes
from ctypes import wintypes
WaitForMultipleObjects = ctypes.windll.kernel32.WaitForMultipleObjects
WaitForMultipleObjects.restype = wintypes.DWORD
WaitForMultipleObjects.argtypes = [
wintypes.DWORD, # nCount : DWORD
ctypes.c_void_p, # lpHandles : HANDLE*
wintypes.BOOL, # bWaitAll : BOOL
wintypes.DWORD, # dwMilliseconds : DWORD
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))require 'fiddle'
require 'fiddle/import'
lib = Fiddle.dlopen('KERNEL32.dll')
WaitForMultipleObjects = Fiddle::Function.new(
lib['WaitForMultipleObjects'],
[
-Fiddle::TYPE_INT, # nCount : DWORD
Fiddle::TYPE_VOIDP, # lpHandles : HANDLE*
Fiddle::TYPE_INT, # bWaitAll : BOOL
-Fiddle::TYPE_INT, # dwMilliseconds : DWORD
],
-Fiddle::TYPE_INT)#[link(name = "kernel32")]
extern "system" {
fn WaitForMultipleObjects(
nCount: u32, // DWORD
lpHandles: *mut *mut core::ffi::c_void, // HANDLE*
bWaitAll: i32, // BOOL
dwMilliseconds: u32 // DWORD
) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.$sig = @"
[DllImport("KERNEL32.dll", SetLastError = true)]
public static extern uint WaitForMultipleObjects(uint nCount, IntPtr lpHandles, bool bWaitAll, uint dwMilliseconds);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_WaitForMultipleObjects' -Namespace Win32 -PassThru
# $api::WaitForMultipleObjects(nCount, lpHandles, bWaitAll, dwMilliseconds)#uselib "KERNEL32.dll"
#func global WaitForMultipleObjects "WaitForMultipleObjects" sptr, sptr, sptr, sptr
; WaitForMultipleObjects nCount, lpHandles, bWaitAll, dwMilliseconds ; 戻り値は stat
; nCount : DWORD -> "sptr"
; lpHandles : HANDLE* -> "sptr"
; bWaitAll : BOOL -> "sptr"
; dwMilliseconds : DWORD -> "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 "KERNEL32.dll"
#cfunc global WaitForMultipleObjects "WaitForMultipleObjects" int, sptr, int, int
; res = WaitForMultipleObjects(nCount, lpHandles, bWaitAll, dwMilliseconds)
; nCount : DWORD -> "int"
; lpHandles : HANDLE* -> "sptr"
; bWaitAll : BOOL -> "int"
; dwMilliseconds : DWORD -> "int"; WAIT_EVENT WaitForMultipleObjects(DWORD nCount, HANDLE* lpHandles, BOOL bWaitAll, DWORD dwMilliseconds)
#uselib "KERNEL32.dll"
#cfunc global WaitForMultipleObjects "WaitForMultipleObjects" int, intptr, int, int
; res = WaitForMultipleObjects(nCount, lpHandles, bWaitAll, dwMilliseconds)
; nCount : DWORD -> "int"
; lpHandles : HANDLE* -> "intptr"
; bWaitAll : BOOL -> "int"
; dwMilliseconds : DWORD -> "int"import (
"golang.org/x/sys/windows"
"unsafe"
)
var (
kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
procWaitForMultipleObjects = kernel32.NewProc("WaitForMultipleObjects")
)
// nCount (DWORD), lpHandles (HANDLE*), bWaitAll (BOOL), dwMilliseconds (DWORD)
r1, _, err := procWaitForMultipleObjects.Call(
uintptr(nCount),
uintptr(lpHandles),
uintptr(bWaitAll),
uintptr(dwMilliseconds),
)
_ = err // syscall.Errno (valid when the call sets last-error)
_ = r1 // WAIT_EVENTfunction WaitForMultipleObjects(
nCount: DWORD; // DWORD
lpHandles: Pointer; // HANDLE*
bWaitAll: BOOL; // BOOL
dwMilliseconds: DWORD // DWORD
): DWORD; stdcall;
external 'KERNEL32.dll' name 'WaitForMultipleObjects';result := DllCall("KERNEL32\WaitForMultipleObjects"
, "UInt", nCount ; DWORD
, "Ptr", lpHandles ; HANDLE*
, "Int", bWaitAll ; BOOL
, "UInt", dwMilliseconds ; DWORD
, "UInt") ; return: WAIT_EVENT●WaitForMultipleObjects(nCount, lpHandles, bWaitAll, dwMilliseconds) = DLL("KERNEL32.dll", "dword WaitForMultipleObjects(dword, void*, bool, dword)")
# 呼び出し: WaitForMultipleObjects(nCount, lpHandles, bWaitAll, dwMilliseconds)
# nCount : DWORD -> "dword"
# lpHandles : HANDLE* -> "void*"
# bWaitAll : BOOL -> "bool"
# dwMilliseconds : DWORD -> "dword"
# 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)。