MFWrapMediaType

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

HRESULT MFWrapMediaType(
    IMFMediaType* pOrig,
    const GUID* MajorType,
    const GUID* SubType,
    IMFMediaType** ppWrap
);

<DllImport("MFPlat.dll", ExactSpelling:=True)>
Public Shared Function MFWrapMediaType(
    pOrig As IntPtr,   ' IMFMediaType*
    ByRef MajorType As Guid,   ' GUID*
    ByRef SubType As Guid,   ' GUID*
    ppWrap As IntPtr   ' IMFMediaType** out
) As Integer
End Function

' pOrig : IMFMediaType*
' MajorType : GUID*
' SubType : GUID*
' ppWrap : IMFMediaType** out
Declare PtrSafe Function MFWrapMediaType Lib "mfplat" ( _
    ByVal pOrig As LongPtr, _
    ByVal MajorType As LongPtr, _
    ByVal SubType As LongPtr, _
    ByVal ppWrap 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

MFWrapMediaType = ctypes.windll.mfplat.MFWrapMediaType
MFWrapMediaType.restype = ctypes.c_int
MFWrapMediaType.argtypes = [
    ctypes.c_void_p,  # pOrig : IMFMediaType*
    ctypes.c_void_p,  # MajorType : GUID*
    ctypes.c_void_p,  # SubType : GUID*
    ctypes.c_void_p,  # ppWrap : IMFMediaType** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('MFPlat.dll')
MFWrapMediaType = Fiddle::Function.new(
  lib['MFWrapMediaType'],
  [
    Fiddle::TYPE_VOIDP,  # pOrig : IMFMediaType*
    Fiddle::TYPE_VOIDP,  # MajorType : GUID*
    Fiddle::TYPE_VOIDP,  # SubType : GUID*
    Fiddle::TYPE_VOIDP,  # ppWrap : IMFMediaType** out
  ],
  Fiddle::TYPE_INT)

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

$sig = @"
[DllImport("MFPlat.dll")]
public static extern int MFWrapMediaType(IntPtr pOrig, ref Guid MajorType, ref Guid SubType, IntPtr ppWrap);
"@
$api = Add-Type -MemberDefinition $sig -Name 'MFPlat_MFWrapMediaType' -Namespace Win32 -PassThru
# $api::MFWrapMediaType(pOrig, MajorType, SubType, ppWrap)

#uselib "MFPlat.dll"
#func global MFWrapMediaType "MFWrapMediaType" sptr, sptr, sptr, sptr
; MFWrapMediaType pOrig, varptr(MajorType), varptr(SubType), ppWrap   ; 戻り値は stat
; pOrig : IMFMediaType* -> "sptr"
; MajorType : GUID* -> "sptr"
; SubType : GUID* -> "sptr"
; ppWrap : IMFMediaType** 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 MFWrapMediaType "MFWrapMediaType" sptr, var, var, sptr
; res = MFWrapMediaType(pOrig, MajorType, SubType, ppWrap)
; pOrig : IMFMediaType* -> "sptr"
; MajorType : GUID* -> "var"
; SubType : GUID* -> "var"
; ppWrap : IMFMediaType** 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 MFWrapMediaType(IMFMediaType* pOrig, GUID* MajorType, GUID* SubType, IMFMediaType** ppWrap)
#uselib "MFPlat.dll"
#cfunc global MFWrapMediaType "MFWrapMediaType" intptr, var, var, intptr
; res = MFWrapMediaType(pOrig, MajorType, SubType, ppWrap)
; pOrig : IMFMediaType* -> "intptr"
; MajorType : GUID* -> "var"
; SubType : GUID* -> "var"
; ppWrap : IMFMediaType** 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")
	procMFWrapMediaType = mfplat.NewProc("MFWrapMediaType")
)

// pOrig (IMFMediaType*), MajorType (GUID*), SubType (GUID*), ppWrap (IMFMediaType** out)
r1, _, err := procMFWrapMediaType.Call(
	uintptr(pOrig),
	uintptr(MajorType),
	uintptr(SubType),
	uintptr(ppWrap),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function MFWrapMediaType(
  pOrig: Pointer;   // IMFMediaType*
  MajorType: PGUID;   // GUID*
  SubType: PGUID;   // GUID*
  ppWrap: Pointer   // IMFMediaType** out
): Integer; stdcall;
  external 'MFPlat.dll' name 'MFWrapMediaType';

result := DllCall("MFPlat\MFWrapMediaType"
    , "Ptr", pOrig   ; IMFMediaType*
    , "Ptr", MajorType   ; GUID*
    , "Ptr", SubType   ; GUID*
    , "Ptr", ppWrap   ; IMFMediaType** out
    , "Int")   ; return: HRESULT

●MFWrapMediaType(pOrig, MajorType, SubType, ppWrap) = DLL("MFPlat.dll", "int MFWrapMediaType(void*, void*, void*, void*)")
# 呼び出し: MFWrapMediaType(pOrig, MajorType, SubType, ppWrap)
# pOrig : IMFMediaType* -> "void*"
# MajorType : GUID* -> "void*"
# SubType : GUID* -> "void*"
# ppWrap : IMFMediaType** 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)。