MFCreateVideoMixerAndPresenter

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

HRESULT MFCreateVideoMixerAndPresenter(
    IUnknown* pMixerOwner,   // optional
    IUnknown* pPresenterOwner,   // optional
    const GUID* riidMixer,
    void** ppvVideoMixer,
    const GUID* riidPresenter,
    void** ppvVideoPresenter
);

<DllImport("EVR.dll", ExactSpelling:=True)>
Public Shared Function MFCreateVideoMixerAndPresenter(
    pMixerOwner As IntPtr,   ' IUnknown* optional
    pPresenterOwner As IntPtr,   ' IUnknown* optional
    ByRef riidMixer As Guid,   ' GUID*
    ppvVideoMixer As IntPtr,   ' void** out
    ByRef riidPresenter As Guid,   ' GUID*
    ppvVideoPresenter As IntPtr   ' void** out
) As Integer
End Function

' pMixerOwner : IUnknown* optional
' pPresenterOwner : IUnknown* optional
' riidMixer : GUID*
' ppvVideoMixer : void** out
' riidPresenter : GUID*
' ppvVideoPresenter : void** out
Declare PtrSafe Function MFCreateVideoMixerAndPresenter Lib "evr" ( _
    ByVal pMixerOwner As LongPtr, _
    ByVal pPresenterOwner As LongPtr, _
    ByVal riidMixer As LongPtr, _
    ByVal ppvVideoMixer As LongPtr, _
    ByVal riidPresenter As LongPtr, _
    ByVal ppvVideoPresenter 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

MFCreateVideoMixerAndPresenter = ctypes.windll.evr.MFCreateVideoMixerAndPresenter
MFCreateVideoMixerAndPresenter.restype = ctypes.c_int
MFCreateVideoMixerAndPresenter.argtypes = [
    ctypes.c_void_p,  # pMixerOwner : IUnknown* optional
    ctypes.c_void_p,  # pPresenterOwner : IUnknown* optional
    ctypes.c_void_p,  # riidMixer : GUID*
    ctypes.c_void_p,  # ppvVideoMixer : void** out
    ctypes.c_void_p,  # riidPresenter : GUID*
    ctypes.c_void_p,  # ppvVideoPresenter : void** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('EVR.dll')
MFCreateVideoMixerAndPresenter = Fiddle::Function.new(
  lib['MFCreateVideoMixerAndPresenter'],
  [
    Fiddle::TYPE_VOIDP,  # pMixerOwner : IUnknown* optional
    Fiddle::TYPE_VOIDP,  # pPresenterOwner : IUnknown* optional
    Fiddle::TYPE_VOIDP,  # riidMixer : GUID*
    Fiddle::TYPE_VOIDP,  # ppvVideoMixer : void** out
    Fiddle::TYPE_VOIDP,  # riidPresenter : GUID*
    Fiddle::TYPE_VOIDP,  # ppvVideoPresenter : void** out
  ],
  Fiddle::TYPE_INT)

#[link(name = "evr")]
extern "system" {
    fn MFCreateVideoMixerAndPresenter(
        pMixerOwner: *mut core::ffi::c_void,  // IUnknown* optional
        pPresenterOwner: *mut core::ffi::c_void,  // IUnknown* optional
        riidMixer: *const GUID,  // GUID*
        ppvVideoMixer: *mut *mut (),  // void** out
        riidPresenter: *const GUID,  // GUID*
        ppvVideoPresenter: *mut *mut ()  // void** out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("EVR.dll")]
public static extern int MFCreateVideoMixerAndPresenter(IntPtr pMixerOwner, IntPtr pPresenterOwner, ref Guid riidMixer, IntPtr ppvVideoMixer, ref Guid riidPresenter, IntPtr ppvVideoPresenter);
"@
$api = Add-Type -MemberDefinition $sig -Name 'EVR_MFCreateVideoMixerAndPresenter' -Namespace Win32 -PassThru
# $api::MFCreateVideoMixerAndPresenter(pMixerOwner, pPresenterOwner, riidMixer, ppvVideoMixer, riidPresenter, ppvVideoPresenter)

#uselib "EVR.dll"
#func global MFCreateVideoMixerAndPresenter "MFCreateVideoMixerAndPresenter" sptr, sptr, sptr, sptr, sptr, sptr
; MFCreateVideoMixerAndPresenter pMixerOwner, pPresenterOwner, varptr(riidMixer), ppvVideoMixer, varptr(riidPresenter), ppvVideoPresenter   ; 戻り値は stat
; pMixerOwner : IUnknown* optional -> "sptr"
; pPresenterOwner : IUnknown* optional -> "sptr"
; riidMixer : GUID* -> "sptr"
; ppvVideoMixer : void** out -> "sptr"
; riidPresenter : GUID* -> "sptr"
; ppvVideoPresenter : void** 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 MFCreateVideoMixerAndPresenter "MFCreateVideoMixerAndPresenter" sptr, sptr, var, sptr, var, sptr
; res = MFCreateVideoMixerAndPresenter(pMixerOwner, pPresenterOwner, riidMixer, ppvVideoMixer, riidPresenter, ppvVideoPresenter)
; pMixerOwner : IUnknown* optional -> "sptr"
; pPresenterOwner : IUnknown* optional -> "sptr"
; riidMixer : GUID* -> "var"
; ppvVideoMixer : void** out -> "sptr"
; riidPresenter : GUID* -> "var"
; ppvVideoPresenter : void** out -> "sptr"
; ※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。

; HRESULT MFCreateVideoMixerAndPresenter(IUnknown* pMixerOwner, IUnknown* pPresenterOwner, GUID* riidMixer, void** ppvVideoMixer, GUID* riidPresenter, void** ppvVideoPresenter)
#uselib "EVR.dll"
#cfunc global MFCreateVideoMixerAndPresenter "MFCreateVideoMixerAndPresenter" intptr, intptr, var, intptr, var, intptr
; res = MFCreateVideoMixerAndPresenter(pMixerOwner, pPresenterOwner, riidMixer, ppvVideoMixer, riidPresenter, ppvVideoPresenter)
; pMixerOwner : IUnknown* optional -> "intptr"
; pPresenterOwner : IUnknown* optional -> "intptr"
; riidMixer : GUID* -> "var"
; ppvVideoMixer : void** out -> "intptr"
; riidPresenter : GUID* -> "var"
; ppvVideoPresenter : void** out -> "intptr"
; ※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 (
	evr = windows.NewLazySystemDLL("EVR.dll")
	procMFCreateVideoMixerAndPresenter = evr.NewProc("MFCreateVideoMixerAndPresenter")
)

// pMixerOwner (IUnknown* optional), pPresenterOwner (IUnknown* optional), riidMixer (GUID*), ppvVideoMixer (void** out), riidPresenter (GUID*), ppvVideoPresenter (void** out)
r1, _, err := procMFCreateVideoMixerAndPresenter.Call(
	uintptr(pMixerOwner),
	uintptr(pPresenterOwner),
	uintptr(riidMixer),
	uintptr(ppvVideoMixer),
	uintptr(riidPresenter),
	uintptr(ppvVideoPresenter),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function MFCreateVideoMixerAndPresenter(
  pMixerOwner: Pointer;   // IUnknown* optional
  pPresenterOwner: Pointer;   // IUnknown* optional
  riidMixer: PGUID;   // GUID*
  ppvVideoMixer: Pointer;   // void** out
  riidPresenter: PGUID;   // GUID*
  ppvVideoPresenter: Pointer   // void** out
): Integer; stdcall;
  external 'EVR.dll' name 'MFCreateVideoMixerAndPresenter';

result := DllCall("EVR\MFCreateVideoMixerAndPresenter"
    , "Ptr", pMixerOwner   ; IUnknown* optional
    , "Ptr", pPresenterOwner   ; IUnknown* optional
    , "Ptr", riidMixer   ; GUID*
    , "Ptr", ppvVideoMixer   ; void** out
    , "Ptr", riidPresenter   ; GUID*
    , "Ptr", ppvVideoPresenter   ; void** out
    , "Int")   ; return: HRESULT

●MFCreateVideoMixerAndPresenter(pMixerOwner, pPresenterOwner, riidMixer, ppvVideoMixer, riidPresenter, ppvVideoPresenter) = DLL("EVR.dll", "int MFCreateVideoMixerAndPresenter(void*, void*, void*, void*, void*, void*)")
# 呼び出し: MFCreateVideoMixerAndPresenter(pMixerOwner, pPresenterOwner, riidMixer, ppvVideoMixer, riidPresenter, ppvVideoPresenter)
# pMixerOwner : IUnknown* optional -> "void*"
# pPresenterOwner : IUnknown* optional -> "void*"
# riidMixer : GUID* -> "void*"
# ppvVideoMixer : void** out -> "void*"
# riidPresenter : GUID* -> "void*"
# ppvVideoPresenter : void** 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)。