MFCreateVideoSampleFromSurface

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

HRESULT MFCreateVideoSampleFromSurface(
    IUnknown* pUnkSurface,
    IMFSample** ppSample
);

<DllImport("EVR.dll", ExactSpelling:=True)>
Public Shared Function MFCreateVideoSampleFromSurface(
    pUnkSurface As IntPtr,   ' IUnknown*
    ppSample As IntPtr   ' IMFSample** out
) As Integer
End Function

' pUnkSurface : IUnknown*
' ppSample : IMFSample** out
Declare PtrSafe Function MFCreateVideoSampleFromSurface Lib "evr" ( _
    ByVal pUnkSurface As LongPtr, _
    ByVal ppSample 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

MFCreateVideoSampleFromSurface = ctypes.windll.evr.MFCreateVideoSampleFromSurface
MFCreateVideoSampleFromSurface.restype = ctypes.c_int
MFCreateVideoSampleFromSurface.argtypes = [
    ctypes.c_void_p,  # pUnkSurface : IUnknown*
    ctypes.c_void_p,  # ppSample : IMFSample** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('EVR.dll')
MFCreateVideoSampleFromSurface = Fiddle::Function.new(
  lib['MFCreateVideoSampleFromSurface'],
  [
    Fiddle::TYPE_VOIDP,  # pUnkSurface : IUnknown*
    Fiddle::TYPE_VOIDP,  # ppSample : IMFSample** out
  ],
  Fiddle::TYPE_INT)

#[link(name = "evr")]
extern "system" {
    fn MFCreateVideoSampleFromSurface(
        pUnkSurface: *mut core::ffi::c_void,  // IUnknown*
        ppSample: *mut *mut core::ffi::c_void  // IMFSample** out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("EVR.dll")]
public static extern int MFCreateVideoSampleFromSurface(IntPtr pUnkSurface, IntPtr ppSample);
"@
$api = Add-Type -MemberDefinition $sig -Name 'EVR_MFCreateVideoSampleFromSurface' -Namespace Win32 -PassThru
# $api::MFCreateVideoSampleFromSurface(pUnkSurface, ppSample)

#uselib "EVR.dll"
#func global MFCreateVideoSampleFromSurface "MFCreateVideoSampleFromSurface" sptr, sptr
; MFCreateVideoSampleFromSurface pUnkSurface, ppSample   ; 戻り値は stat
; pUnkSurface : IUnknown* -> "sptr"
; ppSample : IMFSample** 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 "EVR.dll"
#cfunc global MFCreateVideoSampleFromSurface "MFCreateVideoSampleFromSurface" sptr, sptr
; res = MFCreateVideoSampleFromSurface(pUnkSurface, ppSample)
; pUnkSurface : IUnknown* -> "sptr"
; ppSample : IMFSample** out -> "sptr"

; HRESULT MFCreateVideoSampleFromSurface(IUnknown* pUnkSurface, IMFSample** ppSample)
#uselib "EVR.dll"
#cfunc global MFCreateVideoSampleFromSurface "MFCreateVideoSampleFromSurface" intptr, intptr
; res = MFCreateVideoSampleFromSurface(pUnkSurface, ppSample)
; pUnkSurface : IUnknown* -> "intptr"
; ppSample : IMFSample** out -> "intptr"

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

var (
	evr = windows.NewLazySystemDLL("EVR.dll")
	procMFCreateVideoSampleFromSurface = evr.NewProc("MFCreateVideoSampleFromSurface")
)

// pUnkSurface (IUnknown*), ppSample (IMFSample** out)
r1, _, err := procMFCreateVideoSampleFromSurface.Call(
	uintptr(pUnkSurface),
	uintptr(ppSample),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function MFCreateVideoSampleFromSurface(
  pUnkSurface: Pointer;   // IUnknown*
  ppSample: Pointer   // IMFSample** out
): Integer; stdcall;
  external 'EVR.dll' name 'MFCreateVideoSampleFromSurface';

result := DllCall("EVR\MFCreateVideoSampleFromSurface"
    , "Ptr", pUnkSurface   ; IUnknown*
    , "Ptr", ppSample   ; IMFSample** out
    , "Int")   ; return: HRESULT

●MFCreateVideoSampleFromSurface(pUnkSurface, ppSample) = DLL("EVR.dll", "int MFCreateVideoSampleFromSurface(void*, void*)")
# 呼び出し: MFCreateVideoSampleFromSurface(pUnkSurface, ppSample)
# pUnkSurface : IUnknown* -> "void*"
# ppSample : IMFSample** 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 "evr" fn MFCreateVideoSampleFromSurface(
    pUnkSurface: ?*anyopaque, // IUnknown*
    ppSample: ?*anyopaque // IMFSample** out
) callconv(std.os.windows.WINAPI) i32;

proc MFCreateVideoSampleFromSurface(
    pUnkSurface: pointer,  # IUnknown*
    ppSample: pointer  # IMFSample** out
): int32 {.importc: "MFCreateVideoSampleFromSurface", stdcall, dynlib: "EVR.dll".}

pragma(lib, "evr");
extern(Windows)
int MFCreateVideoSampleFromSurface(
    void* pUnkSurface,   // IUnknown*
    void* ppSample   // IMFSample** out
);

ccall((:MFCreateVideoSampleFromSurface, "EVR.dll"), stdcall, Int32,
      (Ptr{Cvoid}, Ptr{Cvoid}),
      pUnkSurface, ppSample)
# pUnkSurface : IUnknown* -> Ptr{Cvoid}
# ppSample : IMFSample** out -> 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 MFCreateVideoSampleFromSurface(
    void* pUnkSurface,
    void* ppSample);
]]
local evr = ffi.load("evr")
-- evr.MFCreateVideoSampleFromSurface(pUnkSurface, ppSample)
-- pUnkSurface : IUnknown*
-- ppSample : IMFSample** 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('EVR.dll');
const MFCreateVideoSampleFromSurface = lib.func('__stdcall', 'MFCreateVideoSampleFromSurface', 'int32_t', ['void *', 'void *']);
// MFCreateVideoSampleFromSurface(pUnkSurface, ppSample)
// pUnkSurface : IUnknown* -> 'void *'
// ppSample : IMFSample** out -> '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("EVR.dll", {
  MFCreateVideoSampleFromSurface: { parameters: ["pointer", "pointer"], result: "i32" },
});
// lib.symbols.MFCreateVideoSampleFromSurface(pUnkSurface, ppSample)
// pUnkSurface : IUnknown* -> "pointer"
// ppSample : IMFSample** 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 MFCreateVideoSampleFromSurface(
    void* pUnkSurface,
    void* ppSample);
C, "EVR.dll");
// $ffi->MFCreateVideoSampleFromSurface(pUnkSurface, ppSample);
// pUnkSurface : IUnknown*
// ppSample : IMFSample** 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 Evr extends StdCallLibrary {
    Evr INSTANCE = Native.load("evr", Evr.class);
    int MFCreateVideoSampleFromSurface(
        Pointer pUnkSurface,   // IUnknown*
        Pointer ppSample   // IMFSample** out
    );
}

@[Link("evr")]
lib LibEVR
  fun MFCreateVideoSampleFromSurface = MFCreateVideoSampleFromSurface(
    pUnkSurface : Void*,   # IUnknown*
    ppSample : Void*   # IMFSample** 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 MFCreateVideoSampleFromSurfaceNative = Int32 Function(Pointer<Void>, Pointer<Void>);
typedef MFCreateVideoSampleFromSurfaceDart = int Function(Pointer<Void>, Pointer<Void>);
final MFCreateVideoSampleFromSurface = DynamicLibrary.open('EVR.dll')
    .lookupFunction<MFCreateVideoSampleFromSurfaceNative, MFCreateVideoSampleFromSurfaceDart>('MFCreateVideoSampleFromSurface');
// pUnkSurface : IUnknown* -> Pointer<Void>
// ppSample : IMFSample** out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function MFCreateVideoSampleFromSurface(
  pUnkSurface: Pointer;   // IUnknown*
  ppSample: Pointer   // IMFSample** out
): Integer; stdcall;
  external 'EVR.dll' name 'MFCreateVideoSampleFromSurface';

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

foreign import stdcall safe "MFCreateVideoSampleFromSurface"
  c_MFCreateVideoSampleFromSurface :: Ptr () -> Ptr () -> IO Int32
-- pUnkSurface : IUnknown* -> Ptr ()
-- ppSample : IMFSample** out -> 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 mfcreatevideosamplefromsurface =
  foreign "MFCreateVideoSampleFromSurface"
    ((ptr void) @-> (ptr void) @-> returning int32_t)
(* pUnkSurface : IUnknown* -> (ptr void) *)
(* ppSample : IMFSample** out -> (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 evr (t "EVR.dll"))
(cffi:use-foreign-library evr)

(cffi:defcfun ("MFCreateVideoSampleFromSurface" mfcreate-video-sample-from-surface :convention :stdcall) :int32
  (p-unk-surface :pointer)   ; IUnknown*
  (pp-sample :pointer))   ; IMFSample** out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $MFCreateVideoSampleFromSurface = Win32::API::More->new('EVR',
    'int MFCreateVideoSampleFromSurface(LPVOID pUnkSurface, LPVOID ppSample)');
# my $ret = $MFCreateVideoSampleFromSurface->Call($pUnkSurface, $ppSample);
# pUnkSurface : IUnknown* -> LPVOID
# ppSample : IMFSample** out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。