MFPutWorkItem2

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

HRESULT MFPutWorkItem2(
    DWORD dwQueue,
    INT Priority,
    IMFAsyncCallback* pCallback,
    IUnknown* pState   // optional
);

<DllImport("MFPlat.dll", ExactSpelling:=True)>
Public Shared Function MFPutWorkItem2(
    dwQueue As UInteger,   ' DWORD
    Priority As Integer,   ' INT
    pCallback As IntPtr,   ' IMFAsyncCallback*
    pState As IntPtr   ' IUnknown* optional
) As Integer
End Function

' dwQueue : DWORD
' Priority : INT
' pCallback : IMFAsyncCallback*
' pState : IUnknown* optional
Declare PtrSafe Function MFPutWorkItem2 Lib "mfplat" ( _
    ByVal dwQueue As Long, _
    ByVal Priority As Long, _
    ByVal pCallback As LongPtr, _
    ByVal pState 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

MFPutWorkItem2 = ctypes.windll.mfplat.MFPutWorkItem2
MFPutWorkItem2.restype = ctypes.c_int
MFPutWorkItem2.argtypes = [
    wintypes.DWORD,  # dwQueue : DWORD
    ctypes.c_int,  # Priority : INT
    ctypes.c_void_p,  # pCallback : IMFAsyncCallback*
    ctypes.c_void_p,  # pState : IUnknown* optional
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('MFPlat.dll')
MFPutWorkItem2 = Fiddle::Function.new(
  lib['MFPutWorkItem2'],
  [
    -Fiddle::TYPE_INT,  # dwQueue : DWORD
    Fiddle::TYPE_INT,  # Priority : INT
    Fiddle::TYPE_VOIDP,  # pCallback : IMFAsyncCallback*
    Fiddle::TYPE_VOIDP,  # pState : IUnknown* optional
  ],
  Fiddle::TYPE_INT)

#[link(name = "mfplat")]
extern "system" {
    fn MFPutWorkItem2(
        dwQueue: u32,  // DWORD
        Priority: i32,  // INT
        pCallback: *mut core::ffi::c_void,  // IMFAsyncCallback*
        pState: *mut core::ffi::c_void  // IUnknown* optional
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("MFPlat.dll")]
public static extern int MFPutWorkItem2(uint dwQueue, int Priority, IntPtr pCallback, IntPtr pState);
"@
$api = Add-Type -MemberDefinition $sig -Name 'MFPlat_MFPutWorkItem2' -Namespace Win32 -PassThru
# $api::MFPutWorkItem2(dwQueue, Priority, pCallback, pState)

#uselib "MFPlat.dll"
#func global MFPutWorkItem2 "MFPutWorkItem2" sptr, sptr, sptr, sptr
; MFPutWorkItem2 dwQueue, Priority, pCallback, pState   ; 戻り値は stat
; dwQueue : DWORD -> "sptr"
; Priority : INT -> "sptr"
; pCallback : IMFAsyncCallback* -> "sptr"
; pState : IUnknown* 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 "MFPlat.dll"
#cfunc global MFPutWorkItem2 "MFPutWorkItem2" int, int, sptr, sptr
; res = MFPutWorkItem2(dwQueue, Priority, pCallback, pState)
; dwQueue : DWORD -> "int"
; Priority : INT -> "int"
; pCallback : IMFAsyncCallback* -> "sptr"
; pState : IUnknown* optional -> "sptr"

; HRESULT MFPutWorkItem2(DWORD dwQueue, INT Priority, IMFAsyncCallback* pCallback, IUnknown* pState)
#uselib "MFPlat.dll"
#cfunc global MFPutWorkItem2 "MFPutWorkItem2" int, int, intptr, intptr
; res = MFPutWorkItem2(dwQueue, Priority, pCallback, pState)
; dwQueue : DWORD -> "int"
; Priority : INT -> "int"
; pCallback : IMFAsyncCallback* -> "intptr"
; pState : IUnknown* optional -> "intptr"

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

var (
	mfplat = windows.NewLazySystemDLL("MFPlat.dll")
	procMFPutWorkItem2 = mfplat.NewProc("MFPutWorkItem2")
)

// dwQueue (DWORD), Priority (INT), pCallback (IMFAsyncCallback*), pState (IUnknown* optional)
r1, _, err := procMFPutWorkItem2.Call(
	uintptr(dwQueue),
	uintptr(Priority),
	uintptr(pCallback),
	uintptr(pState),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function MFPutWorkItem2(
  dwQueue: DWORD;   // DWORD
  Priority: Integer;   // INT
  pCallback: Pointer;   // IMFAsyncCallback*
  pState: Pointer   // IUnknown* optional
): Integer; stdcall;
  external 'MFPlat.dll' name 'MFPutWorkItem2';

result := DllCall("MFPlat\MFPutWorkItem2"
    , "UInt", dwQueue   ; DWORD
    , "Int", Priority   ; INT
    , "Ptr", pCallback   ; IMFAsyncCallback*
    , "Ptr", pState   ; IUnknown* optional
    , "Int")   ; return: HRESULT

●MFPutWorkItem2(dwQueue, Priority, pCallback, pState) = DLL("MFPlat.dll", "int MFPutWorkItem2(dword, int, void*, void*)")
# 呼び出し: MFPutWorkItem2(dwQueue, Priority, pCallback, pState)
# dwQueue : DWORD -> "dword"
# Priority : INT -> "int"
# pCallback : IMFAsyncCallback* -> "void*"
# pState : IUnknown* 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)。

const std = @import("std");

extern "mfplat" fn MFPutWorkItem2(
    dwQueue: u32, // DWORD
    Priority: i32, // INT
    pCallback: ?*anyopaque, // IMFAsyncCallback*
    pState: ?*anyopaque // IUnknown* optional
) callconv(std.os.windows.WINAPI) i32;

proc MFPutWorkItem2(
    dwQueue: uint32,  # DWORD
    Priority: int32,  # INT
    pCallback: pointer,  # IMFAsyncCallback*
    pState: pointer  # IUnknown* optional
): int32 {.importc: "MFPutWorkItem2", stdcall, dynlib: "MFPlat.dll".}

pragma(lib, "mfplat");
extern(Windows)
int MFPutWorkItem2(
    uint dwQueue,   // DWORD
    int Priority,   // INT
    void* pCallback,   // IMFAsyncCallback*
    void* pState   // IUnknown* optional
);

ccall((:MFPutWorkItem2, "MFPlat.dll"), stdcall, Int32,
      (UInt32, Int32, Ptr{Cvoid}, Ptr{Cvoid}),
      dwQueue, Priority, pCallback, pState)
# dwQueue : DWORD -> UInt32
# Priority : INT -> Int32
# pCallback : IMFAsyncCallback* -> Ptr{Cvoid}
# pState : IUnknown* optional -> Ptr{Cvoid}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t MFPutWorkItem2(
    uint32_t dwQueue,
    int32_t Priority,
    void* pCallback,
    void* pState);
]]
local mfplat = ffi.load("mfplat")
-- mfplat.MFPutWorkItem2(dwQueue, Priority, pCallback, pState)
-- dwQueue : DWORD
-- Priority : INT
-- pCallback : IMFAsyncCallback*
-- pState : IUnknown* optional
-- 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 MFPutWorkItem2 = lib.func('__stdcall', 'MFPutWorkItem2', 'int32_t', ['uint32_t', 'int32_t', 'void *', 'void *']);
// MFPutWorkItem2(dwQueue, Priority, pCallback, pState)
// dwQueue : DWORD -> 'uint32_t'
// Priority : INT -> 'int32_t'
// pCallback : IMFAsyncCallback* -> 'void *'
// pState : IUnknown* optional -> 'void *'
// 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", {
  MFPutWorkItem2: { parameters: ["u32", "i32", "pointer", "pointer"], result: "i32" },
});
// lib.symbols.MFPutWorkItem2(dwQueue, Priority, pCallback, pState)
// dwQueue : DWORD -> "u32"
// Priority : INT -> "i32"
// pCallback : IMFAsyncCallback* -> "pointer"
// pState : IUnknown* optional -> "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 MFPutWorkItem2(
    uint32_t dwQueue,
    int32_t Priority,
    void* pCallback,
    void* pState);
C, "MFPlat.dll");
// $ffi->MFPutWorkItem2(dwQueue, Priority, pCallback, pState);
// dwQueue : DWORD
// Priority : INT
// pCallback : IMFAsyncCallback*
// pState : IUnknown* optional
// 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 MFPutWorkItem2(
        int dwQueue,   // DWORD
        int Priority,   // INT
        Pointer pCallback,   // IMFAsyncCallback*
        Pointer pState   // IUnknown* optional
    );
}

@[Link("mfplat")]
lib LibMFPlat
  fun MFPutWorkItem2 = MFPutWorkItem2(
    dwQueue : UInt32,   # DWORD
    Priority : Int32,   # INT
    pCallback : Void*,   # IMFAsyncCallback*
    pState : Void*   # IUnknown* optional
  ) : 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 MFPutWorkItem2Native = Int32 Function(Uint32, Int32, Pointer<Void>, Pointer<Void>);
typedef MFPutWorkItem2Dart = int Function(int, int, Pointer<Void>, Pointer<Void>);
final MFPutWorkItem2 = DynamicLibrary.open('MFPlat.dll')
    .lookupFunction<MFPutWorkItem2Native, MFPutWorkItem2Dart>('MFPutWorkItem2');
// dwQueue : DWORD -> Uint32
// Priority : INT -> Int32
// pCallback : IMFAsyncCallback* -> Pointer<Void>
// pState : IUnknown* optional -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function MFPutWorkItem2(
  dwQueue: DWORD;   // DWORD
  Priority: Integer;   // INT
  pCallback: Pointer;   // IMFAsyncCallback*
  pState: Pointer   // IUnknown* optional
): Integer; stdcall;
  external 'MFPlat.dll' name 'MFPutWorkItem2';

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

foreign import stdcall safe "MFPutWorkItem2"
  c_MFPutWorkItem2 :: Word32 -> Int32 -> Ptr () -> Ptr () -> IO Int32
-- dwQueue : DWORD -> Word32
-- Priority : INT -> Int32
-- pCallback : IMFAsyncCallback* -> Ptr ()
-- pState : IUnknown* optional -> Ptr ()
-- 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 mfputworkitem2 =
  foreign "MFPutWorkItem2"
    (uint32_t @-> int32_t @-> (ptr void) @-> (ptr void) @-> returning int32_t)
(* dwQueue : DWORD -> uint32_t *)
(* Priority : INT -> int32_t *)
(* pCallback : IMFAsyncCallback* -> (ptr void) *)
(* pState : IUnknown* optional -> (ptr void) *)
(* 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 ("MFPutWorkItem2" mfput-work-item2 :convention :stdcall) :int32
  (dw-queue :uint32)   ; DWORD
  (priority :int32)   ; INT
  (p-callback :pointer)   ; IMFAsyncCallback*
  (p-state :pointer))   ; IUnknown* optional
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $MFPutWorkItem2 = Win32::API::More->new('MFPlat',
    'int MFPutWorkItem2(DWORD dwQueue, int Priority, LPVOID pCallback, LPVOID pState)');
# my $ret = $MFPutWorkItem2->Call($dwQueue, $Priority, $pCallback, $pState);
# dwQueue : DWORD -> DWORD
# Priority : INT -> int
# pCallback : IMFAsyncCallback* -> LPVOID
# pState : IUnknown* optional -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。