MFPutWaitingWorkItem

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

HRESULT MFPutWaitingWorkItem(
    HANDLE hEvent,
    INT Priority,
    IMFAsyncResult* pResult,
    ULONGLONG* pKey   // optional
);

<DllImport("MFPlat.dll", ExactSpelling:=True)>
Public Shared Function MFPutWaitingWorkItem(
    hEvent As IntPtr,   ' HANDLE
    Priority As Integer,   ' INT
    pResult As IntPtr,   ' IMFAsyncResult*
    pKey As IntPtr   ' ULONGLONG* optional, out
) As Integer
End Function

' hEvent : HANDLE
' Priority : INT
' pResult : IMFAsyncResult*
' pKey : ULONGLONG* optional, out
Declare PtrSafe Function MFPutWaitingWorkItem Lib "mfplat" ( _
    ByVal hEvent As LongPtr, _
    ByVal Priority As Long, _
    ByVal pResult As LongPtr, _
    ByVal pKey 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

MFPutWaitingWorkItem = ctypes.windll.mfplat.MFPutWaitingWorkItem
MFPutWaitingWorkItem.restype = ctypes.c_int
MFPutWaitingWorkItem.argtypes = [
    wintypes.HANDLE,  # hEvent : HANDLE
    ctypes.c_int,  # Priority : INT
    ctypes.c_void_p,  # pResult : IMFAsyncResult*
    ctypes.POINTER(ctypes.c_ulonglong),  # pKey : ULONGLONG* optional, out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('MFPlat.dll')
MFPutWaitingWorkItem = Fiddle::Function.new(
  lib['MFPutWaitingWorkItem'],
  [
    Fiddle::TYPE_VOIDP,  # hEvent : HANDLE
    Fiddle::TYPE_INT,  # Priority : INT
    Fiddle::TYPE_VOIDP,  # pResult : IMFAsyncResult*
    Fiddle::TYPE_VOIDP,  # pKey : ULONGLONG* optional, out
  ],
  Fiddle::TYPE_INT)

#[link(name = "mfplat")]
extern "system" {
    fn MFPutWaitingWorkItem(
        hEvent: *mut core::ffi::c_void,  // HANDLE
        Priority: i32,  // INT
        pResult: *mut core::ffi::c_void,  // IMFAsyncResult*
        pKey: *mut u64  // ULONGLONG* optional, out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("MFPlat.dll")]
public static extern int MFPutWaitingWorkItem(IntPtr hEvent, int Priority, IntPtr pResult, IntPtr pKey);
"@
$api = Add-Type -MemberDefinition $sig -Name 'MFPlat_MFPutWaitingWorkItem' -Namespace Win32 -PassThru
# $api::MFPutWaitingWorkItem(hEvent, Priority, pResult, pKey)

#uselib "MFPlat.dll"
#func global MFPutWaitingWorkItem "MFPutWaitingWorkItem" sptr, sptr, sptr, sptr
; MFPutWaitingWorkItem hEvent, Priority, pResult, varptr(pKey)   ; 戻り値は stat
; hEvent : HANDLE -> "sptr"
; Priority : INT -> "sptr"
; pResult : IMFAsyncResult* -> "sptr"
; pKey : ULONGLONG* optional, 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。

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	mfplat = windows.NewLazySystemDLL("MFPlat.dll")
	procMFPutWaitingWorkItem = mfplat.NewProc("MFPutWaitingWorkItem")
)

// hEvent (HANDLE), Priority (INT), pResult (IMFAsyncResult*), pKey (ULONGLONG* optional, out)
r1, _, err := procMFPutWaitingWorkItem.Call(
	uintptr(hEvent),
	uintptr(Priority),
	uintptr(pResult),
	uintptr(pKey),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function MFPutWaitingWorkItem(
  hEvent: THandle;   // HANDLE
  Priority: Integer;   // INT
  pResult: Pointer;   // IMFAsyncResult*
  pKey: Pointer   // ULONGLONG* optional, out
): Integer; stdcall;
  external 'MFPlat.dll' name 'MFPutWaitingWorkItem';

result := DllCall("MFPlat\MFPutWaitingWorkItem"
    , "Ptr", hEvent   ; HANDLE
    , "Int", Priority   ; INT
    , "Ptr", pResult   ; IMFAsyncResult*
    , "Ptr", pKey   ; ULONGLONG* optional, out
    , "Int")   ; return: HRESULT

●MFPutWaitingWorkItem(hEvent, Priority, pResult, pKey) = DLL("MFPlat.dll", "int MFPutWaitingWorkItem(void*, int, void*, void*)")
# 呼び出し: MFPutWaitingWorkItem(hEvent, Priority, pResult, pKey)
# hEvent : HANDLE -> "void*"
# Priority : INT -> "int"
# pResult : IMFAsyncResult* -> "void*"
# pKey : ULONGLONG* optional, 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 "mfplat" fn MFPutWaitingWorkItem(
    hEvent: ?*anyopaque, // HANDLE
    Priority: i32, // INT
    pResult: ?*anyopaque, // IMFAsyncResult*
    pKey: [*c]u64 // ULONGLONG* optional, out
) callconv(std.os.windows.WINAPI) i32;

proc MFPutWaitingWorkItem(
    hEvent: pointer,  # HANDLE
    Priority: int32,  # INT
    pResult: pointer,  # IMFAsyncResult*
    pKey: ptr uint64  # ULONGLONG* optional, out
): int32 {.importc: "MFPutWaitingWorkItem", stdcall, dynlib: "MFPlat.dll".}

pragma(lib, "mfplat");
extern(Windows)
int MFPutWaitingWorkItem(
    void* hEvent,   // HANDLE
    int Priority,   // INT
    void* pResult,   // IMFAsyncResult*
    ulong* pKey   // ULONGLONG* optional, out
);

ccall((:MFPutWaitingWorkItem, "MFPlat.dll"), stdcall, Int32,
      (Ptr{Cvoid}, Int32, Ptr{Cvoid}, Ptr{UInt64}),
      hEvent, Priority, pResult, pKey)
# hEvent : HANDLE -> Ptr{Cvoid}
# Priority : INT -> Int32
# pResult : IMFAsyncResult* -> Ptr{Cvoid}
# pKey : ULONGLONG* optional, out -> Ptr{UInt64}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t MFPutWaitingWorkItem(
    void* hEvent,
    int32_t Priority,
    void* pResult,
    uint64_t* pKey);
]]
local mfplat = ffi.load("mfplat")
-- mfplat.MFPutWaitingWorkItem(hEvent, Priority, pResult, pKey)
-- hEvent : HANDLE
-- Priority : INT
-- pResult : IMFAsyncResult*
-- pKey : ULONGLONG* optional, 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('MFPlat.dll');
const MFPutWaitingWorkItem = lib.func('__stdcall', 'MFPutWaitingWorkItem', 'int32_t', ['void *', 'int32_t', 'void *', 'uint64_t *']);
// MFPutWaitingWorkItem(hEvent, Priority, pResult, pKey)
// hEvent : HANDLE -> 'void *'
// Priority : INT -> 'int32_t'
// pResult : IMFAsyncResult* -> 'void *'
// pKey : ULONGLONG* optional, out -> 'uint64_t *'
// 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("MFPlat.dll", {
  MFPutWaitingWorkItem: { parameters: ["pointer", "i32", "pointer", "pointer"], result: "i32" },
});
// lib.symbols.MFPutWaitingWorkItem(hEvent, Priority, pResult, pKey)
// hEvent : HANDLE -> "pointer"
// Priority : INT -> "i32"
// pResult : IMFAsyncResult* -> "pointer"
// pKey : ULONGLONG* optional, 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 MFPutWaitingWorkItem(
    void* hEvent,
    int32_t Priority,
    void* pResult,
    uint64_t* pKey);
C, "MFPlat.dll");
// $ffi->MFPutWaitingWorkItem(hEvent, Priority, pResult, pKey);
// hEvent : HANDLE
// Priority : INT
// pResult : IMFAsyncResult*
// pKey : ULONGLONG* optional, 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 Mfplat extends StdCallLibrary {
    Mfplat INSTANCE = Native.load("mfplat", Mfplat.class);
    int MFPutWaitingWorkItem(
        Pointer hEvent,   // HANDLE
        int Priority,   // INT
        Pointer pResult,   // IMFAsyncResult*
        LongByReference pKey   // ULONGLONG* optional, out
    );
}

@[Link("mfplat")]
lib LibMFPlat
  fun MFPutWaitingWorkItem = MFPutWaitingWorkItem(
    hEvent : Void*,   # HANDLE
    Priority : Int32,   # INT
    pResult : Void*,   # IMFAsyncResult*
    pKey : UInt64*   # ULONGLONG* optional, 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 MFPutWaitingWorkItemNative = Int32 Function(Pointer<Void>, Int32, Pointer<Void>, Pointer<Uint64>);
typedef MFPutWaitingWorkItemDart = int Function(Pointer<Void>, int, Pointer<Void>, Pointer<Uint64>);
final MFPutWaitingWorkItem = DynamicLibrary.open('MFPlat.dll')
    .lookupFunction<MFPutWaitingWorkItemNative, MFPutWaitingWorkItemDart>('MFPutWaitingWorkItem');
// hEvent : HANDLE -> Pointer<Void>
// Priority : INT -> Int32
// pResult : IMFAsyncResult* -> Pointer<Void>
// pKey : ULONGLONG* optional, out -> Pointer<Uint64>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function MFPutWaitingWorkItem(
  hEvent: THandle;   // HANDLE
  Priority: Integer;   // INT
  pResult: Pointer;   // IMFAsyncResult*
  pKey: Pointer   // ULONGLONG* optional, out
): Integer; stdcall;
  external 'MFPlat.dll' name 'MFPutWaitingWorkItem';

import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "MFPutWaitingWorkItem"
  c_MFPutWaitingWorkItem :: Ptr () -> Int32 -> Ptr () -> Ptr Word64 -> IO Int32
-- hEvent : HANDLE -> Ptr ()
-- Priority : INT -> Int32
-- pResult : IMFAsyncResult* -> Ptr ()
-- pKey : ULONGLONG* optional, out -> Ptr Word64
-- 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 mfputwaitingworkitem =
  foreign "MFPutWaitingWorkItem"
    ((ptr void) @-> int32_t @-> (ptr void) @-> (ptr uint64_t) @-> returning int32_t)
(* hEvent : HANDLE -> (ptr void) *)
(* Priority : INT -> int32_t *)
(* pResult : IMFAsyncResult* -> (ptr void) *)
(* pKey : ULONGLONG* optional, out -> (ptr uint64_t) *)
(* 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 mfplat (t "MFPlat.dll"))
(cffi:use-foreign-library mfplat)

(cffi:defcfun ("MFPutWaitingWorkItem" mfput-waiting-work-item :convention :stdcall) :int32
  (h-event :pointer)   ; HANDLE
  (priority :int32)   ; INT
  (p-result :pointer)   ; IMFAsyncResult*
  (p-key :pointer))   ; ULONGLONG* optional, out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $MFPutWaitingWorkItem = Win32::API::More->new('MFPlat',
    'int MFPutWaitingWorkItem(HANDLE hEvent, int Priority, LPVOID pResult, LPVOID pKey)');
# my $ret = $MFPutWaitingWorkItem->Call($hEvent, $Priority, $pResult, $pKey);
# hEvent : HANDLE -> HANDLE
# Priority : INT -> int
# pResult : IMFAsyncResult* -> LPVOID
# pKey : ULONGLONG* optional, out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。