MFConvertColorInfoToDXVA

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

HRESULT MFConvertColorInfoToDXVA(
    DWORD* pdwToDXVA,
    const MFVIDEOFORMAT* pFromFormat
);

<DllImport("MFPlat.dll", ExactSpelling:=True)>
Public Shared Function MFConvertColorInfoToDXVA(
    <Out> ByRef pdwToDXVA As UInteger,   ' DWORD* out
    pFromFormat As IntPtr   ' MFVIDEOFORMAT*
) As Integer
End Function

' pdwToDXVA : DWORD* out
' pFromFormat : MFVIDEOFORMAT*
Declare PtrSafe Function MFConvertColorInfoToDXVA Lib "mfplat" ( _
    ByRef pdwToDXVA As Long, _
    ByVal pFromFormat 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

MFConvertColorInfoToDXVA = ctypes.windll.mfplat.MFConvertColorInfoToDXVA
MFConvertColorInfoToDXVA.restype = ctypes.c_int
MFConvertColorInfoToDXVA.argtypes = [
    ctypes.POINTER(wintypes.DWORD),  # pdwToDXVA : DWORD* out
    ctypes.c_void_p,  # pFromFormat : MFVIDEOFORMAT*
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('MFPlat.dll')
MFConvertColorInfoToDXVA = Fiddle::Function.new(
  lib['MFConvertColorInfoToDXVA'],
  [
    Fiddle::TYPE_VOIDP,  # pdwToDXVA : DWORD* out
    Fiddle::TYPE_VOIDP,  # pFromFormat : MFVIDEOFORMAT*
  ],
  Fiddle::TYPE_INT)

#[link(name = "mfplat")]
extern "system" {
    fn MFConvertColorInfoToDXVA(
        pdwToDXVA: *mut u32,  // DWORD* out
        pFromFormat: *const MFVIDEOFORMAT  // MFVIDEOFORMAT*
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("MFPlat.dll")]
public static extern int MFConvertColorInfoToDXVA(out uint pdwToDXVA, IntPtr pFromFormat);
"@
$api = Add-Type -MemberDefinition $sig -Name 'MFPlat_MFConvertColorInfoToDXVA' -Namespace Win32 -PassThru
# $api::MFConvertColorInfoToDXVA(pdwToDXVA, pFromFormat)

#uselib "MFPlat.dll"
#func global MFConvertColorInfoToDXVA "MFConvertColorInfoToDXVA" sptr, sptr
; MFConvertColorInfoToDXVA varptr(pdwToDXVA), varptr(pFromFormat)   ; 戻り値は stat
; pdwToDXVA : DWORD* out -> "sptr"
; pFromFormat : MFVIDEOFORMAT* -> "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 MFConvertColorInfoToDXVA "MFConvertColorInfoToDXVA" var, var
; res = MFConvertColorInfoToDXVA(pdwToDXVA, pFromFormat)
; pdwToDXVA : DWORD* out -> "var"
; pFromFormat : MFVIDEOFORMAT* -> "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 MFConvertColorInfoToDXVA(DWORD* pdwToDXVA, MFVIDEOFORMAT* pFromFormat)
#uselib "MFPlat.dll"
#cfunc global MFConvertColorInfoToDXVA "MFConvertColorInfoToDXVA" var, var
; res = MFConvertColorInfoToDXVA(pdwToDXVA, pFromFormat)
; pdwToDXVA : DWORD* out -> "var"
; pFromFormat : MFVIDEOFORMAT* -> "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")
	procMFConvertColorInfoToDXVA = mfplat.NewProc("MFConvertColorInfoToDXVA")
)

// pdwToDXVA (DWORD* out), pFromFormat (MFVIDEOFORMAT*)
r1, _, err := procMFConvertColorInfoToDXVA.Call(
	uintptr(pdwToDXVA),
	uintptr(pFromFormat),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function MFConvertColorInfoToDXVA(
  pdwToDXVA: Pointer;   // DWORD* out
  pFromFormat: Pointer   // MFVIDEOFORMAT*
): Integer; stdcall;
  external 'MFPlat.dll' name 'MFConvertColorInfoToDXVA';

result := DllCall("MFPlat\MFConvertColorInfoToDXVA"
    , "Ptr", pdwToDXVA   ; DWORD* out
    , "Ptr", pFromFormat   ; MFVIDEOFORMAT*
    , "Int")   ; return: HRESULT

●MFConvertColorInfoToDXVA(pdwToDXVA, pFromFormat) = DLL("MFPlat.dll", "int MFConvertColorInfoToDXVA(void*, void*)")
# 呼び出し: MFConvertColorInfoToDXVA(pdwToDXVA, pFromFormat)
# pdwToDXVA : DWORD* out -> "void*"
# pFromFormat : MFVIDEOFORMAT* -> "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)。