MFCreateEncryptedMediaExtensionsStoreActivate

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

HRESULT MFCreateEncryptedMediaExtensionsStoreActivate(
    IMFPMPHostApp* pmpHost,
    IStream* objectStream,
    LPCWSTR classId,
    IMFActivate** activate
);

<DllImport("MF.dll", ExactSpelling:=True)>
Public Shared Function MFCreateEncryptedMediaExtensionsStoreActivate(
    pmpHost As IntPtr,   ' IMFPMPHostApp*
    objectStream As IntPtr,   ' IStream*
    <MarshalAs(UnmanagedType.LPWStr)> classId As String,   ' LPCWSTR
    activate As IntPtr   ' IMFActivate** out
) As Integer
End Function

' pmpHost : IMFPMPHostApp*
' objectStream : IStream*
' classId : LPCWSTR
' activate : IMFActivate** out
Declare PtrSafe Function MFCreateEncryptedMediaExtensionsStoreActivate Lib "mf" ( _
    ByVal pmpHost As LongPtr, _
    ByVal objectStream As LongPtr, _
    ByVal classId As LongPtr, _
    ByVal activate 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

MFCreateEncryptedMediaExtensionsStoreActivate = ctypes.windll.mf.MFCreateEncryptedMediaExtensionsStoreActivate
MFCreateEncryptedMediaExtensionsStoreActivate.restype = ctypes.c_int
MFCreateEncryptedMediaExtensionsStoreActivate.argtypes = [
    ctypes.c_void_p,  # pmpHost : IMFPMPHostApp*
    ctypes.c_void_p,  # objectStream : IStream*
    wintypes.LPCWSTR,  # classId : LPCWSTR
    ctypes.c_void_p,  # activate : IMFActivate** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('MF.dll')
MFCreateEncryptedMediaExtensionsStoreActivate = Fiddle::Function.new(
  lib['MFCreateEncryptedMediaExtensionsStoreActivate'],
  [
    Fiddle::TYPE_VOIDP,  # pmpHost : IMFPMPHostApp*
    Fiddle::TYPE_VOIDP,  # objectStream : IStream*
    Fiddle::TYPE_VOIDP,  # classId : LPCWSTR
    Fiddle::TYPE_VOIDP,  # activate : IMFActivate** out
  ],
  Fiddle::TYPE_INT)

#[link(name = "mf")]
extern "system" {
    fn MFCreateEncryptedMediaExtensionsStoreActivate(
        pmpHost: *mut core::ffi::c_void,  // IMFPMPHostApp*
        objectStream: *mut core::ffi::c_void,  // IStream*
        classId: *const u16,  // LPCWSTR
        activate: *mut *mut core::ffi::c_void  // IMFActivate** out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("MF.dll")]
public static extern int MFCreateEncryptedMediaExtensionsStoreActivate(IntPtr pmpHost, IntPtr objectStream, [MarshalAs(UnmanagedType.LPWStr)] string classId, IntPtr activate);
"@
$api = Add-Type -MemberDefinition $sig -Name 'MF_MFCreateEncryptedMediaExtensionsStoreActivate' -Namespace Win32 -PassThru
# $api::MFCreateEncryptedMediaExtensionsStoreActivate(pmpHost, objectStream, classId, activate)

#uselib "MF.dll"
#func global MFCreateEncryptedMediaExtensionsStoreActivate "MFCreateEncryptedMediaExtensionsStoreActivate" sptr, sptr, sptr, sptr
; MFCreateEncryptedMediaExtensionsStoreActivate pmpHost, objectStream, classId, activate   ; 戻り値は stat
; pmpHost : IMFPMPHostApp* -> "sptr"
; objectStream : IStream* -> "sptr"
; classId : LPCWSTR -> "sptr"
; activate : IMFActivate** 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 "MF.dll"
#cfunc global MFCreateEncryptedMediaExtensionsStoreActivate "MFCreateEncryptedMediaExtensionsStoreActivate" sptr, sptr, wstr, sptr
; res = MFCreateEncryptedMediaExtensionsStoreActivate(pmpHost, objectStream, classId, activate)
; pmpHost : IMFPMPHostApp* -> "sptr"
; objectStream : IStream* -> "sptr"
; classId : LPCWSTR -> "wstr"
; activate : IMFActivate** out -> "sptr"

; HRESULT MFCreateEncryptedMediaExtensionsStoreActivate(IMFPMPHostApp* pmpHost, IStream* objectStream, LPCWSTR classId, IMFActivate** activate)
#uselib "MF.dll"
#cfunc global MFCreateEncryptedMediaExtensionsStoreActivate "MFCreateEncryptedMediaExtensionsStoreActivate" intptr, intptr, wstr, intptr
; res = MFCreateEncryptedMediaExtensionsStoreActivate(pmpHost, objectStream, classId, activate)
; pmpHost : IMFPMPHostApp* -> "intptr"
; objectStream : IStream* -> "intptr"
; classId : LPCWSTR -> "wstr"
; activate : IMFActivate** out -> "intptr"

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

var (
	mf = windows.NewLazySystemDLL("MF.dll")
	procMFCreateEncryptedMediaExtensionsStoreActivate = mf.NewProc("MFCreateEncryptedMediaExtensionsStoreActivate")
)

// pmpHost (IMFPMPHostApp*), objectStream (IStream*), classId (LPCWSTR), activate (IMFActivate** out)
r1, _, err := procMFCreateEncryptedMediaExtensionsStoreActivate.Call(
	uintptr(pmpHost),
	uintptr(objectStream),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(classId))),
	uintptr(activate),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function MFCreateEncryptedMediaExtensionsStoreActivate(
  pmpHost: Pointer;   // IMFPMPHostApp*
  objectStream: Pointer;   // IStream*
  classId: PWideChar;   // LPCWSTR
  activate: Pointer   // IMFActivate** out
): Integer; stdcall;
  external 'MF.dll' name 'MFCreateEncryptedMediaExtensionsStoreActivate';

result := DllCall("MF\MFCreateEncryptedMediaExtensionsStoreActivate"
    , "Ptr", pmpHost   ; IMFPMPHostApp*
    , "Ptr", objectStream   ; IStream*
    , "WStr", classId   ; LPCWSTR
    , "Ptr", activate   ; IMFActivate** out
    , "Int")   ; return: HRESULT

●MFCreateEncryptedMediaExtensionsStoreActivate(pmpHost, objectStream, classId, activate) = DLL("MF.dll", "int MFCreateEncryptedMediaExtensionsStoreActivate(void*, void*, char*, void*)")
# 呼び出し: MFCreateEncryptedMediaExtensionsStoreActivate(pmpHost, objectStream, classId, activate)
# pmpHost : IMFPMPHostApp* -> "void*"
# objectStream : IStream* -> "void*"
# classId : LPCWSTR -> "char*"
# activate : IMFActivate** 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)。