GetQueuedCompletionStatus

// KERNEL32.dll
#include <windows.h>

BOOL GetQueuedCompletionStatus(
    HANDLE CompletionPort,
    DWORD* lpNumberOfBytesTransferred,
    UINT_PTR* lpCompletionKey,
    OVERLAPPED** lpOverlapped,
    DWORD dwMilliseconds
);

<DllImport("KERNEL32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function GetQueuedCompletionStatus(
    CompletionPort As IntPtr,   ' HANDLE
    <Out> ByRef lpNumberOfBytesTransferred As UInteger,   ' DWORD* out
    <Out> ByRef lpCompletionKey As UIntPtr,   ' UINT_PTR* out
    lpOverlapped As IntPtr,   ' OVERLAPPED** out
    dwMilliseconds As UInteger   ' DWORD
) As Boolean
End Function

' CompletionPort : HANDLE
' lpNumberOfBytesTransferred : DWORD* out
' lpCompletionKey : UINT_PTR* out
' lpOverlapped : OVERLAPPED** out
' dwMilliseconds : DWORD
Declare PtrSafe Function GetQueuedCompletionStatus Lib "kernel32" ( _
    ByVal CompletionPort As LongPtr, _
    ByRef lpNumberOfBytesTransferred As Long, _
    ByRef lpCompletionKey As LongPtr, _
    ByVal lpOverlapped As LongPtr, _
    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

GetQueuedCompletionStatus = ctypes.windll.kernel32.GetQueuedCompletionStatus
GetQueuedCompletionStatus.restype = wintypes.BOOL
GetQueuedCompletionStatus.argtypes = [
    wintypes.HANDLE,  # CompletionPort : HANDLE
    ctypes.POINTER(wintypes.DWORD),  # lpNumberOfBytesTransferred : DWORD* out
    ctypes.POINTER(ctypes.c_size_t),  # lpCompletionKey : UINT_PTR* out
    ctypes.c_void_p,  # lpOverlapped : OVERLAPPED** out
    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')
GetQueuedCompletionStatus = Fiddle::Function.new(
  lib['GetQueuedCompletionStatus'],
  [
    Fiddle::TYPE_VOIDP,  # CompletionPort : HANDLE
    Fiddle::TYPE_VOIDP,  # lpNumberOfBytesTransferred : DWORD* out
    Fiddle::TYPE_VOIDP,  # lpCompletionKey : UINT_PTR* out
    Fiddle::TYPE_VOIDP,  # lpOverlapped : OVERLAPPED** out
    -Fiddle::TYPE_INT,  # dwMilliseconds : DWORD
  ],
  Fiddle::TYPE_INT)

#[link(name = "kernel32")]
extern "system" {
    fn GetQueuedCompletionStatus(
        CompletionPort: *mut core::ffi::c_void,  // HANDLE
        lpNumberOfBytesTransferred: *mut u32,  // DWORD* out
        lpCompletionKey: *mut usize,  // UINT_PTR* out
        lpOverlapped: *mut *mut OVERLAPPED,  // OVERLAPPED** out
        dwMilliseconds: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("KERNEL32.dll", SetLastError = true)]
public static extern bool GetQueuedCompletionStatus(IntPtr CompletionPort, out uint lpNumberOfBytesTransferred, out UIntPtr lpCompletionKey, IntPtr lpOverlapped, uint dwMilliseconds);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_GetQueuedCompletionStatus' -Namespace Win32 -PassThru
# $api::GetQueuedCompletionStatus(CompletionPort, lpNumberOfBytesTransferred, lpCompletionKey, lpOverlapped, dwMilliseconds)

#uselib "KERNEL32.dll"
#func global GetQueuedCompletionStatus "GetQueuedCompletionStatus" sptr, sptr, sptr, sptr, sptr
; GetQueuedCompletionStatus CompletionPort, varptr(lpNumberOfBytesTransferred), varptr(lpCompletionKey), varptr(lpOverlapped), dwMilliseconds   ; 戻り値は stat
; CompletionPort : HANDLE -> "sptr"
; lpNumberOfBytesTransferred : DWORD* out -> "sptr"
; lpCompletionKey : UINT_PTR* out -> "sptr"
; lpOverlapped : OVERLAPPED** out -> "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 GetQueuedCompletionStatus "GetQueuedCompletionStatus" sptr, var, var, var, int
; res = GetQueuedCompletionStatus(CompletionPort, lpNumberOfBytesTransferred, lpCompletionKey, lpOverlapped, dwMilliseconds)
; CompletionPort : HANDLE -> "sptr"
; lpNumberOfBytesTransferred : DWORD* out -> "var"
; lpCompletionKey : UINT_PTR* out -> "var"
; lpOverlapped : OVERLAPPED** out -> "var"
; dwMilliseconds : DWORD -> "int"
; ※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。

; BOOL GetQueuedCompletionStatus(HANDLE CompletionPort, DWORD* lpNumberOfBytesTransferred, UINT_PTR* lpCompletionKey, OVERLAPPED** lpOverlapped, DWORD dwMilliseconds)
#uselib "KERNEL32.dll"
#cfunc global GetQueuedCompletionStatus "GetQueuedCompletionStatus" intptr, var, var, var, int
; res = GetQueuedCompletionStatus(CompletionPort, lpNumberOfBytesTransferred, lpCompletionKey, lpOverlapped, dwMilliseconds)
; CompletionPort : HANDLE -> "intptr"
; lpNumberOfBytesTransferred : DWORD* out -> "var"
; lpCompletionKey : UINT_PTR* out -> "var"
; lpOverlapped : OVERLAPPED** out -> "var"
; dwMilliseconds : DWORD -> "int"
; ※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 (
	kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
	procGetQueuedCompletionStatus = kernel32.NewProc("GetQueuedCompletionStatus")
)

// CompletionPort (HANDLE), lpNumberOfBytesTransferred (DWORD* out), lpCompletionKey (UINT_PTR* out), lpOverlapped (OVERLAPPED** out), dwMilliseconds (DWORD)
r1, _, err := procGetQueuedCompletionStatus.Call(
	uintptr(CompletionPort),
	uintptr(lpNumberOfBytesTransferred),
	uintptr(lpCompletionKey),
	uintptr(lpOverlapped),
	uintptr(dwMilliseconds),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function GetQueuedCompletionStatus(
  CompletionPort: THandle;   // HANDLE
  lpNumberOfBytesTransferred: Pointer;   // DWORD* out
  lpCompletionKey: Pointer;   // UINT_PTR* out
  lpOverlapped: Pointer;   // OVERLAPPED** out
  dwMilliseconds: DWORD   // DWORD
): BOOL; stdcall;
  external 'KERNEL32.dll' name 'GetQueuedCompletionStatus';

result := DllCall("KERNEL32\GetQueuedCompletionStatus"
    , "Ptr", CompletionPort   ; HANDLE
    , "Ptr", lpNumberOfBytesTransferred   ; DWORD* out
    , "Ptr", lpCompletionKey   ; UINT_PTR* out
    , "Ptr", lpOverlapped   ; OVERLAPPED** out
    , "UInt", dwMilliseconds   ; DWORD
    , "Int")   ; return: BOOL

●GetQueuedCompletionStatus(CompletionPort, lpNumberOfBytesTransferred, lpCompletionKey, lpOverlapped, dwMilliseconds) = DLL("KERNEL32.dll", "bool GetQueuedCompletionStatus(void*, void*, void*, void*, dword)")
# 呼び出し: GetQueuedCompletionStatus(CompletionPort, lpNumberOfBytesTransferred, lpCompletionKey, lpOverlapped, dwMilliseconds)
# CompletionPort : HANDLE -> "void*"
# lpNumberOfBytesTransferred : DWORD* out -> "void*"
# lpCompletionKey : UINT_PTR* out -> "void*"
# lpOverlapped : OVERLAPPED** out -> "void*"
# 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)。