PostQueuedCompletionStatus

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

BOOL PostQueuedCompletionStatus(
    HANDLE CompletionPort,
    DWORD dwNumberOfBytesTransferred,
    UINT_PTR dwCompletionKey,
    OVERLAPPED* lpOverlapped   // optional
);

<DllImport("KERNEL32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function PostQueuedCompletionStatus(
    CompletionPort As IntPtr,   ' HANDLE
    dwNumberOfBytesTransferred As UInteger,   ' DWORD
    dwCompletionKey As UIntPtr,   ' UINT_PTR
    lpOverlapped As IntPtr   ' OVERLAPPED* optional
) As Boolean
End Function

' CompletionPort : HANDLE
' dwNumberOfBytesTransferred : DWORD
' dwCompletionKey : UINT_PTR
' lpOverlapped : OVERLAPPED* optional
Declare PtrSafe Function PostQueuedCompletionStatus Lib "kernel32" ( _
    ByVal CompletionPort As LongPtr, _
    ByVal dwNumberOfBytesTransferred As Long, _
    ByVal dwCompletionKey As LongPtr, _
    ByVal lpOverlapped 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

PostQueuedCompletionStatus = ctypes.windll.kernel32.PostQueuedCompletionStatus
PostQueuedCompletionStatus.restype = wintypes.BOOL
PostQueuedCompletionStatus.argtypes = [
    wintypes.HANDLE,  # CompletionPort : HANDLE
    wintypes.DWORD,  # dwNumberOfBytesTransferred : DWORD
    ctypes.c_size_t,  # dwCompletionKey : UINT_PTR
    ctypes.c_void_p,  # lpOverlapped : OVERLAPPED* optional
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
PostQueuedCompletionStatus = Fiddle::Function.new(
  lib['PostQueuedCompletionStatus'],
  [
    Fiddle::TYPE_VOIDP,  # CompletionPort : HANDLE
    -Fiddle::TYPE_INT,  # dwNumberOfBytesTransferred : DWORD
    Fiddle::TYPE_UINTPTR_T,  # dwCompletionKey : UINT_PTR
    Fiddle::TYPE_VOIDP,  # lpOverlapped : OVERLAPPED* optional
  ],
  Fiddle::TYPE_INT)

#[link(name = "kernel32")]
extern "system" {
    fn PostQueuedCompletionStatus(
        CompletionPort: *mut core::ffi::c_void,  // HANDLE
        dwNumberOfBytesTransferred: u32,  // DWORD
        dwCompletionKey: usize,  // UINT_PTR
        lpOverlapped: *mut OVERLAPPED  // OVERLAPPED* optional
    ) -> 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 PostQueuedCompletionStatus(IntPtr CompletionPort, uint dwNumberOfBytesTransferred, UIntPtr dwCompletionKey, IntPtr lpOverlapped);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_PostQueuedCompletionStatus' -Namespace Win32 -PassThru
# $api::PostQueuedCompletionStatus(CompletionPort, dwNumberOfBytesTransferred, dwCompletionKey, lpOverlapped)

#uselib "KERNEL32.dll"
#func global PostQueuedCompletionStatus "PostQueuedCompletionStatus" sptr, sptr, sptr, sptr
; PostQueuedCompletionStatus CompletionPort, dwNumberOfBytesTransferred, dwCompletionKey, varptr(lpOverlapped)   ; 戻り値は stat
; CompletionPort : HANDLE -> "sptr"
; dwNumberOfBytesTransferred : DWORD -> "sptr"
; dwCompletionKey : UINT_PTR -> "sptr"
; lpOverlapped : OVERLAPPED* optional -> "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 PostQueuedCompletionStatus "PostQueuedCompletionStatus" sptr, int, sptr, var
; res = PostQueuedCompletionStatus(CompletionPort, dwNumberOfBytesTransferred, dwCompletionKey, lpOverlapped)
; CompletionPort : HANDLE -> "sptr"
; dwNumberOfBytesTransferred : DWORD -> "int"
; dwCompletionKey : UINT_PTR -> "sptr"
; lpOverlapped : OVERLAPPED* optional -> "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。

; BOOL PostQueuedCompletionStatus(HANDLE CompletionPort, DWORD dwNumberOfBytesTransferred, UINT_PTR dwCompletionKey, OVERLAPPED* lpOverlapped)
#uselib "KERNEL32.dll"
#cfunc global PostQueuedCompletionStatus "PostQueuedCompletionStatus" intptr, int, intptr, var
; res = PostQueuedCompletionStatus(CompletionPort, dwNumberOfBytesTransferred, dwCompletionKey, lpOverlapped)
; CompletionPort : HANDLE -> "intptr"
; dwNumberOfBytesTransferred : DWORD -> "int"
; dwCompletionKey : UINT_PTR -> "intptr"
; lpOverlapped : OVERLAPPED* optional -> "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 (
	kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
	procPostQueuedCompletionStatus = kernel32.NewProc("PostQueuedCompletionStatus")
)

// CompletionPort (HANDLE), dwNumberOfBytesTransferred (DWORD), dwCompletionKey (UINT_PTR), lpOverlapped (OVERLAPPED* optional)
r1, _, err := procPostQueuedCompletionStatus.Call(
	uintptr(CompletionPort),
	uintptr(dwNumberOfBytesTransferred),
	uintptr(dwCompletionKey),
	uintptr(lpOverlapped),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function PostQueuedCompletionStatus(
  CompletionPort: THandle;   // HANDLE
  dwNumberOfBytesTransferred: DWORD;   // DWORD
  dwCompletionKey: NativeUInt;   // UINT_PTR
  lpOverlapped: Pointer   // OVERLAPPED* optional
): BOOL; stdcall;
  external 'KERNEL32.dll' name 'PostQueuedCompletionStatus';

result := DllCall("KERNEL32\PostQueuedCompletionStatus"
    , "Ptr", CompletionPort   ; HANDLE
    , "UInt", dwNumberOfBytesTransferred   ; DWORD
    , "UPtr", dwCompletionKey   ; UINT_PTR
    , "Ptr", lpOverlapped   ; OVERLAPPED* optional
    , "Int")   ; return: BOOL

●PostQueuedCompletionStatus(CompletionPort, dwNumberOfBytesTransferred, dwCompletionKey, lpOverlapped) = DLL("KERNEL32.dll", "bool PostQueuedCompletionStatus(void*, dword, int, void*)")
# 呼び出し: PostQueuedCompletionStatus(CompletionPort, dwNumberOfBytesTransferred, dwCompletionKey, lpOverlapped)
# CompletionPort : HANDLE -> "void*"
# dwNumberOfBytesTransferred : DWORD -> "dword"
# dwCompletionKey : UINT_PTR -> "int"
# lpOverlapped : OVERLAPPED* optional -> "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)。