CoWaitForMultipleHandles

// OLE32.dll
#include <windows.h>

HRESULT CoWaitForMultipleHandles(
    DWORD dwFlags,
    DWORD dwTimeout,
    DWORD cHandles,
    HANDLE* pHandles,
    DWORD* lpdwindex
);

<DllImport("OLE32.dll", ExactSpelling:=True)>
Public Shared Function CoWaitForMultipleHandles(
    dwFlags As UInteger,   ' DWORD
    dwTimeout As UInteger,   ' DWORD
    cHandles As UInteger,   ' DWORD
    pHandles As IntPtr,   ' HANDLE*
    <Out> ByRef lpdwindex As UInteger   ' DWORD* out
) As Integer
End Function

' dwFlags : DWORD
' dwTimeout : DWORD
' cHandles : DWORD
' pHandles : HANDLE*
' lpdwindex : DWORD* out
Declare PtrSafe Function CoWaitForMultipleHandles Lib "ole32" ( _
    ByVal dwFlags As Long, _
    ByVal dwTimeout As Long, _
    ByVal cHandles As Long, _
    ByVal pHandles As LongPtr, _
    ByRef lpdwindex 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

CoWaitForMultipleHandles = ctypes.windll.ole32.CoWaitForMultipleHandles
CoWaitForMultipleHandles.restype = ctypes.c_int
CoWaitForMultipleHandles.argtypes = [
    wintypes.DWORD,  # dwFlags : DWORD
    wintypes.DWORD,  # dwTimeout : DWORD
    wintypes.DWORD,  # cHandles : DWORD
    ctypes.c_void_p,  # pHandles : HANDLE*
    ctypes.POINTER(wintypes.DWORD),  # lpdwindex : DWORD* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('OLE32.dll')
CoWaitForMultipleHandles = Fiddle::Function.new(
  lib['CoWaitForMultipleHandles'],
  [
    -Fiddle::TYPE_INT,  # dwFlags : DWORD
    -Fiddle::TYPE_INT,  # dwTimeout : DWORD
    -Fiddle::TYPE_INT,  # cHandles : DWORD
    Fiddle::TYPE_VOIDP,  # pHandles : HANDLE*
    Fiddle::TYPE_VOIDP,  # lpdwindex : DWORD* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "ole32")]
extern "system" {
    fn CoWaitForMultipleHandles(
        dwFlags: u32,  // DWORD
        dwTimeout: u32,  // DWORD
        cHandles: u32,  // DWORD
        pHandles: *mut *mut core::ffi::c_void,  // HANDLE*
        lpdwindex: *mut u32  // DWORD* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("OLE32.dll")]
public static extern int CoWaitForMultipleHandles(uint dwFlags, uint dwTimeout, uint cHandles, IntPtr pHandles, out uint lpdwindex);
"@
$api = Add-Type -MemberDefinition $sig -Name 'OLE32_CoWaitForMultipleHandles' -Namespace Win32 -PassThru
# $api::CoWaitForMultipleHandles(dwFlags, dwTimeout, cHandles, pHandles, lpdwindex)

#uselib "OLE32.dll"
#func global CoWaitForMultipleHandles "CoWaitForMultipleHandles" sptr, sptr, sptr, sptr, sptr
; CoWaitForMultipleHandles dwFlags, dwTimeout, cHandles, pHandles, varptr(lpdwindex)   ; 戻り値は stat
; dwFlags : DWORD -> "sptr"
; dwTimeout : DWORD -> "sptr"
; cHandles : DWORD -> "sptr"
; pHandles : HANDLE* -> "sptr"
; lpdwindex : DWORD* 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 "OLE32.dll"
#cfunc global CoWaitForMultipleHandles "CoWaitForMultipleHandles" int, int, int, sptr, var
; res = CoWaitForMultipleHandles(dwFlags, dwTimeout, cHandles, pHandles, lpdwindex)
; dwFlags : DWORD -> "int"
; dwTimeout : DWORD -> "int"
; cHandles : DWORD -> "int"
; pHandles : HANDLE* -> "sptr"
; lpdwindex : DWORD* 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。

; HRESULT CoWaitForMultipleHandles(DWORD dwFlags, DWORD dwTimeout, DWORD cHandles, HANDLE* pHandles, DWORD* lpdwindex)
#uselib "OLE32.dll"
#cfunc global CoWaitForMultipleHandles "CoWaitForMultipleHandles" int, int, int, intptr, var
; res = CoWaitForMultipleHandles(dwFlags, dwTimeout, cHandles, pHandles, lpdwindex)
; dwFlags : DWORD -> "int"
; dwTimeout : DWORD -> "int"
; cHandles : DWORD -> "int"
; pHandles : HANDLE* -> "intptr"
; lpdwindex : DWORD* 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 (
	ole32 = windows.NewLazySystemDLL("OLE32.dll")
	procCoWaitForMultipleHandles = ole32.NewProc("CoWaitForMultipleHandles")
)

// dwFlags (DWORD), dwTimeout (DWORD), cHandles (DWORD), pHandles (HANDLE*), lpdwindex (DWORD* out)
r1, _, err := procCoWaitForMultipleHandles.Call(
	uintptr(dwFlags),
	uintptr(dwTimeout),
	uintptr(cHandles),
	uintptr(pHandles),
	uintptr(lpdwindex),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function CoWaitForMultipleHandles(
  dwFlags: DWORD;   // DWORD
  dwTimeout: DWORD;   // DWORD
  cHandles: DWORD;   // DWORD
  pHandles: Pointer;   // HANDLE*
  lpdwindex: Pointer   // DWORD* out
): Integer; stdcall;
  external 'OLE32.dll' name 'CoWaitForMultipleHandles';

result := DllCall("OLE32\CoWaitForMultipleHandles"
    , "UInt", dwFlags   ; DWORD
    , "UInt", dwTimeout   ; DWORD
    , "UInt", cHandles   ; DWORD
    , "Ptr", pHandles   ; HANDLE*
    , "Ptr", lpdwindex   ; DWORD* out
    , "Int")   ; return: HRESULT

●CoWaitForMultipleHandles(dwFlags, dwTimeout, cHandles, pHandles, lpdwindex) = DLL("OLE32.dll", "int CoWaitForMultipleHandles(dword, dword, dword, void*, void*)")
# 呼び出し: CoWaitForMultipleHandles(dwFlags, dwTimeout, cHandles, pHandles, lpdwindex)
# dwFlags : DWORD -> "dword"
# dwTimeout : DWORD -> "dword"
# cHandles : DWORD -> "dword"
# pHandles : HANDLE* -> "void*"
# lpdwindex : DWORD* 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)。