MFCreateStreamOnMFByteStream

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

HRESULT MFCreateStreamOnMFByteStream(
    IMFByteStream* pByteStream,
    IStream** ppStream
);

<DllImport("MFPlat.dll", ExactSpelling:=True)>
Public Shared Function MFCreateStreamOnMFByteStream(
    pByteStream As IntPtr,   ' IMFByteStream*
    ppStream As IntPtr   ' IStream** out
) As Integer
End Function

' pByteStream : IMFByteStream*
' ppStream : IStream** out
Declare PtrSafe Function MFCreateStreamOnMFByteStream Lib "mfplat" ( _
    ByVal pByteStream As LongPtr, _
    ByVal ppStream 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

MFCreateStreamOnMFByteStream = ctypes.windll.mfplat.MFCreateStreamOnMFByteStream
MFCreateStreamOnMFByteStream.restype = ctypes.c_int
MFCreateStreamOnMFByteStream.argtypes = [
    ctypes.c_void_p,  # pByteStream : IMFByteStream*
    ctypes.c_void_p,  # ppStream : IStream** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('MFPlat.dll')
MFCreateStreamOnMFByteStream = Fiddle::Function.new(
  lib['MFCreateStreamOnMFByteStream'],
  [
    Fiddle::TYPE_VOIDP,  # pByteStream : IMFByteStream*
    Fiddle::TYPE_VOIDP,  # ppStream : IStream** out
  ],
  Fiddle::TYPE_INT)

#[link(name = "mfplat")]
extern "system" {
    fn MFCreateStreamOnMFByteStream(
        pByteStream: *mut core::ffi::c_void,  // IMFByteStream*
        ppStream: *mut *mut core::ffi::c_void  // IStream** out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("MFPlat.dll")]
public static extern int MFCreateStreamOnMFByteStream(IntPtr pByteStream, IntPtr ppStream);
"@
$api = Add-Type -MemberDefinition $sig -Name 'MFPlat_MFCreateStreamOnMFByteStream' -Namespace Win32 -PassThru
# $api::MFCreateStreamOnMFByteStream(pByteStream, ppStream)

#uselib "MFPlat.dll"
#func global MFCreateStreamOnMFByteStream "MFCreateStreamOnMFByteStream" sptr, sptr
; MFCreateStreamOnMFByteStream pByteStream, ppStream   ; 戻り値は stat
; pByteStream : IMFByteStream* -> "sptr"
; ppStream : IStream** 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 MFCreateStreamOnMFByteStream "MFCreateStreamOnMFByteStream" sptr, sptr
; res = MFCreateStreamOnMFByteStream(pByteStream, ppStream)
; pByteStream : IMFByteStream* -> "sptr"
; ppStream : IStream** out -> "sptr"

; HRESULT MFCreateStreamOnMFByteStream(IMFByteStream* pByteStream, IStream** ppStream)
#uselib "MFPlat.dll"
#cfunc global MFCreateStreamOnMFByteStream "MFCreateStreamOnMFByteStream" intptr, intptr
; res = MFCreateStreamOnMFByteStream(pByteStream, ppStream)
; pByteStream : IMFByteStream* -> "intptr"
; ppStream : IStream** out -> "intptr"

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

var (
	mfplat = windows.NewLazySystemDLL("MFPlat.dll")
	procMFCreateStreamOnMFByteStream = mfplat.NewProc("MFCreateStreamOnMFByteStream")
)

// pByteStream (IMFByteStream*), ppStream (IStream** out)
r1, _, err := procMFCreateStreamOnMFByteStream.Call(
	uintptr(pByteStream),
	uintptr(ppStream),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function MFCreateStreamOnMFByteStream(
  pByteStream: Pointer;   // IMFByteStream*
  ppStream: Pointer   // IStream** out
): Integer; stdcall;
  external 'MFPlat.dll' name 'MFCreateStreamOnMFByteStream';

result := DllCall("MFPlat\MFCreateStreamOnMFByteStream"
    , "Ptr", pByteStream   ; IMFByteStream*
    , "Ptr", ppStream   ; IStream** out
    , "Int")   ; return: HRESULT

●MFCreateStreamOnMFByteStream(pByteStream, ppStream) = DLL("MFPlat.dll", "int MFCreateStreamOnMFByteStream(void*, void*)")
# 呼び出し: MFCreateStreamOnMFByteStream(pByteStream, ppStream)
# pByteStream : IMFByteStream* -> "void*"
# ppStream : IStream** 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)。