MFCreateContentProtectionDevice

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

HRESULT MFCreateContentProtectionDevice(
    const GUID* ProtectionSystemId,
    IMFContentProtectionDevice** ContentProtectionDevice
);

<DllImport("MFPlat.dll", ExactSpelling:=True)>
Public Shared Function MFCreateContentProtectionDevice(
    ByRef ProtectionSystemId As Guid,   ' GUID*
    ContentProtectionDevice As IntPtr   ' IMFContentProtectionDevice** out
) As Integer
End Function

' ProtectionSystemId : GUID*
' ContentProtectionDevice : IMFContentProtectionDevice** out
Declare PtrSafe Function MFCreateContentProtectionDevice Lib "mfplat" ( _
    ByVal ProtectionSystemId As LongPtr, _
    ByVal ContentProtectionDevice 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

MFCreateContentProtectionDevice = ctypes.windll.mfplat.MFCreateContentProtectionDevice
MFCreateContentProtectionDevice.restype = ctypes.c_int
MFCreateContentProtectionDevice.argtypes = [
    ctypes.c_void_p,  # ProtectionSystemId : GUID*
    ctypes.c_void_p,  # ContentProtectionDevice : IMFContentProtectionDevice** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('MFPlat.dll')
MFCreateContentProtectionDevice = Fiddle::Function.new(
  lib['MFCreateContentProtectionDevice'],
  [
    Fiddle::TYPE_VOIDP,  # ProtectionSystemId : GUID*
    Fiddle::TYPE_VOIDP,  # ContentProtectionDevice : IMFContentProtectionDevice** out
  ],
  Fiddle::TYPE_INT)

#[link(name = "mfplat")]
extern "system" {
    fn MFCreateContentProtectionDevice(
        ProtectionSystemId: *const GUID,  // GUID*
        ContentProtectionDevice: *mut *mut core::ffi::c_void  // IMFContentProtectionDevice** out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("MFPlat.dll")]
public static extern int MFCreateContentProtectionDevice(ref Guid ProtectionSystemId, IntPtr ContentProtectionDevice);
"@
$api = Add-Type -MemberDefinition $sig -Name 'MFPlat_MFCreateContentProtectionDevice' -Namespace Win32 -PassThru
# $api::MFCreateContentProtectionDevice(ProtectionSystemId, ContentProtectionDevice)

#uselib "MFPlat.dll"
#func global MFCreateContentProtectionDevice "MFCreateContentProtectionDevice" sptr, sptr
; MFCreateContentProtectionDevice varptr(ProtectionSystemId), ContentProtectionDevice   ; 戻り値は stat
; ProtectionSystemId : GUID* -> "sptr"
; ContentProtectionDevice : IMFContentProtectionDevice** 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 "MFPlat.dll"
#cfunc global MFCreateContentProtectionDevice "MFCreateContentProtectionDevice" var, sptr
; res = MFCreateContentProtectionDevice(ProtectionSystemId, ContentProtectionDevice)
; ProtectionSystemId : GUID* -> "var"
; ContentProtectionDevice : IMFContentProtectionDevice** 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 MFCreateContentProtectionDevice(GUID* ProtectionSystemId, IMFContentProtectionDevice** ContentProtectionDevice)
#uselib "MFPlat.dll"
#cfunc global MFCreateContentProtectionDevice "MFCreateContentProtectionDevice" var, intptr
; res = MFCreateContentProtectionDevice(ProtectionSystemId, ContentProtectionDevice)
; ProtectionSystemId : GUID* -> "var"
; ContentProtectionDevice : IMFContentProtectionDevice** 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 (
	mfplat = windows.NewLazySystemDLL("MFPlat.dll")
	procMFCreateContentProtectionDevice = mfplat.NewProc("MFCreateContentProtectionDevice")
)

// ProtectionSystemId (GUID*), ContentProtectionDevice (IMFContentProtectionDevice** out)
r1, _, err := procMFCreateContentProtectionDevice.Call(
	uintptr(ProtectionSystemId),
	uintptr(ContentProtectionDevice),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function MFCreateContentProtectionDevice(
  ProtectionSystemId: PGUID;   // GUID*
  ContentProtectionDevice: Pointer   // IMFContentProtectionDevice** out
): Integer; stdcall;
  external 'MFPlat.dll' name 'MFCreateContentProtectionDevice';

result := DllCall("MFPlat\MFCreateContentProtectionDevice"
    , "Ptr", ProtectionSystemId   ; GUID*
    , "Ptr", ContentProtectionDevice   ; IMFContentProtectionDevice** out
    , "Int")   ; return: HRESULT

●MFCreateContentProtectionDevice(ProtectionSystemId, ContentProtectionDevice) = DLL("MFPlat.dll", "int MFCreateContentProtectionDevice(void*, void*)")
# 呼び出し: MFCreateContentProtectionDevice(ProtectionSystemId, ContentProtectionDevice)
# ProtectionSystemId : GUID* -> "void*"
# ContentProtectionDevice : IMFContentProtectionDevice** 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)。