MFCreateMFVideoFormatFromMFMediaType

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

HRESULT MFCreateMFVideoFormatFromMFMediaType(
    IMFMediaType* pMFType,
    MFVIDEOFORMAT** ppMFVF,
    DWORD* pcbSize   // optional
);

<DllImport("MFPlat.dll", ExactSpelling:=True)>
Public Shared Function MFCreateMFVideoFormatFromMFMediaType(
    pMFType As IntPtr,   ' IMFMediaType*
    ppMFVF As IntPtr,   ' MFVIDEOFORMAT** out
    pcbSize As IntPtr   ' DWORD* optional, out
) As Integer
End Function

' pMFType : IMFMediaType*
' ppMFVF : MFVIDEOFORMAT** out
' pcbSize : DWORD* optional, out
Declare PtrSafe Function MFCreateMFVideoFormatFromMFMediaType Lib "mfplat" ( _
    ByVal pMFType As LongPtr, _
    ByVal ppMFVF As LongPtr, _
    ByVal pcbSize 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

MFCreateMFVideoFormatFromMFMediaType = ctypes.windll.mfplat.MFCreateMFVideoFormatFromMFMediaType
MFCreateMFVideoFormatFromMFMediaType.restype = ctypes.c_int
MFCreateMFVideoFormatFromMFMediaType.argtypes = [
    ctypes.c_void_p,  # pMFType : IMFMediaType*
    ctypes.c_void_p,  # ppMFVF : MFVIDEOFORMAT** out
    ctypes.POINTER(wintypes.DWORD),  # pcbSize : DWORD* optional, out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('MFPlat.dll')
MFCreateMFVideoFormatFromMFMediaType = Fiddle::Function.new(
  lib['MFCreateMFVideoFormatFromMFMediaType'],
  [
    Fiddle::TYPE_VOIDP,  # pMFType : IMFMediaType*
    Fiddle::TYPE_VOIDP,  # ppMFVF : MFVIDEOFORMAT** out
    Fiddle::TYPE_VOIDP,  # pcbSize : DWORD* optional, out
  ],
  Fiddle::TYPE_INT)

#[link(name = "mfplat")]
extern "system" {
    fn MFCreateMFVideoFormatFromMFMediaType(
        pMFType: *mut core::ffi::c_void,  // IMFMediaType*
        ppMFVF: *mut *mut MFVIDEOFORMAT,  // MFVIDEOFORMAT** out
        pcbSize: *mut u32  // DWORD* optional, out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("MFPlat.dll")]
public static extern int MFCreateMFVideoFormatFromMFMediaType(IntPtr pMFType, IntPtr ppMFVF, IntPtr pcbSize);
"@
$api = Add-Type -MemberDefinition $sig -Name 'MFPlat_MFCreateMFVideoFormatFromMFMediaType' -Namespace Win32 -PassThru
# $api::MFCreateMFVideoFormatFromMFMediaType(pMFType, ppMFVF, pcbSize)

#uselib "MFPlat.dll"
#func global MFCreateMFVideoFormatFromMFMediaType "MFCreateMFVideoFormatFromMFMediaType" sptr, sptr, sptr
; MFCreateMFVideoFormatFromMFMediaType pMFType, varptr(ppMFVF), varptr(pcbSize)   ; 戻り値は stat
; pMFType : IMFMediaType* -> "sptr"
; ppMFVF : MFVIDEOFORMAT** out -> "sptr"
; pcbSize : DWORD* optional, 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 MFCreateMFVideoFormatFromMFMediaType "MFCreateMFVideoFormatFromMFMediaType" sptr, var, var
; res = MFCreateMFVideoFormatFromMFMediaType(pMFType, ppMFVF, pcbSize)
; pMFType : IMFMediaType* -> "sptr"
; ppMFVF : MFVIDEOFORMAT** out -> "var"
; pcbSize : DWORD* optional, out -> "var"
; ※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 MFCreateMFVideoFormatFromMFMediaType(IMFMediaType* pMFType, MFVIDEOFORMAT** ppMFVF, DWORD* pcbSize)
#uselib "MFPlat.dll"
#cfunc global MFCreateMFVideoFormatFromMFMediaType "MFCreateMFVideoFormatFromMFMediaType" intptr, var, var
; res = MFCreateMFVideoFormatFromMFMediaType(pMFType, ppMFVF, pcbSize)
; pMFType : IMFMediaType* -> "intptr"
; ppMFVF : MFVIDEOFORMAT** out -> "var"
; pcbSize : DWORD* optional, out -> "var"
; ※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")
	procMFCreateMFVideoFormatFromMFMediaType = mfplat.NewProc("MFCreateMFVideoFormatFromMFMediaType")
)

// pMFType (IMFMediaType*), ppMFVF (MFVIDEOFORMAT** out), pcbSize (DWORD* optional, out)
r1, _, err := procMFCreateMFVideoFormatFromMFMediaType.Call(
	uintptr(pMFType),
	uintptr(ppMFVF),
	uintptr(pcbSize),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function MFCreateMFVideoFormatFromMFMediaType(
  pMFType: Pointer;   // IMFMediaType*
  ppMFVF: Pointer;   // MFVIDEOFORMAT** out
  pcbSize: Pointer   // DWORD* optional, out
): Integer; stdcall;
  external 'MFPlat.dll' name 'MFCreateMFVideoFormatFromMFMediaType';

result := DllCall("MFPlat\MFCreateMFVideoFormatFromMFMediaType"
    , "Ptr", pMFType   ; IMFMediaType*
    , "Ptr", ppMFVF   ; MFVIDEOFORMAT** out
    , "Ptr", pcbSize   ; DWORD* optional, out
    , "Int")   ; return: HRESULT

●MFCreateMFVideoFormatFromMFMediaType(pMFType, ppMFVF, pcbSize) = DLL("MFPlat.dll", "int MFCreateMFVideoFormatFromMFMediaType(void*, void*, void*)")
# 呼び出し: MFCreateMFVideoFormatFromMFMediaType(pMFType, ppMFVF, pcbSize)
# pMFType : IMFMediaType* -> "void*"
# ppMFVF : MFVIDEOFORMAT** out -> "void*"
# pcbSize : DWORD* optional, 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)。