MFInitVideoFormat

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

HRESULT MFInitVideoFormat(
    MFVIDEOFORMAT* pVideoFormat,
    MFStandardVideoFormat type
);

<DllImport("MFPlat.dll", ExactSpelling:=True)>
Public Shared Function MFInitVideoFormat(
    pVideoFormat As IntPtr,   ' MFVIDEOFORMAT*
    type As Integer   ' MFStandardVideoFormat
) As Integer
End Function

' pVideoFormat : MFVIDEOFORMAT*
' type : MFStandardVideoFormat
Declare PtrSafe Function MFInitVideoFormat Lib "mfplat" ( _
    ByVal pVideoFormat As LongPtr, _
    ByVal type As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

MFInitVideoFormat = ctypes.windll.mfplat.MFInitVideoFormat
MFInitVideoFormat.restype = ctypes.c_int
MFInitVideoFormat.argtypes = [
    ctypes.c_void_p,  # pVideoFormat : MFVIDEOFORMAT*
    ctypes.c_int,  # type : MFStandardVideoFormat
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('MFPlat.dll')
MFInitVideoFormat = Fiddle::Function.new(
  lib['MFInitVideoFormat'],
  [
    Fiddle::TYPE_VOIDP,  # pVideoFormat : MFVIDEOFORMAT*
    Fiddle::TYPE_INT,  # type : MFStandardVideoFormat
  ],
  Fiddle::TYPE_INT)

#[link(name = "mfplat")]
extern "system" {
    fn MFInitVideoFormat(
        pVideoFormat: *mut MFVIDEOFORMAT,  // MFVIDEOFORMAT*
        type: i32  // MFStandardVideoFormat
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

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

#uselib "MFPlat.dll"
#func global MFInitVideoFormat "MFInitVideoFormat" sptr, sptr
; MFInitVideoFormat varptr(pVideoFormat), type   ; 戻り値は stat
; pVideoFormat : MFVIDEOFORMAT* -> "sptr"
; type : MFStandardVideoFormat -> "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 MFInitVideoFormat "MFInitVideoFormat" var, int
; res = MFInitVideoFormat(pVideoFormat, type)
; pVideoFormat : MFVIDEOFORMAT* -> "var"
; type : MFStandardVideoFormat -> "int"
; ※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 MFInitVideoFormat(MFVIDEOFORMAT* pVideoFormat, MFStandardVideoFormat type)
#uselib "MFPlat.dll"
#cfunc global MFInitVideoFormat "MFInitVideoFormat" var, int
; res = MFInitVideoFormat(pVideoFormat, type)
; pVideoFormat : MFVIDEOFORMAT* -> "var"
; type : MFStandardVideoFormat -> "int"
; ※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")
	procMFInitVideoFormat = mfplat.NewProc("MFInitVideoFormat")
)

// pVideoFormat (MFVIDEOFORMAT*), type (MFStandardVideoFormat)
r1, _, err := procMFInitVideoFormat.Call(
	uintptr(pVideoFormat),
	uintptr(type),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function MFInitVideoFormat(
  pVideoFormat: Pointer;   // MFVIDEOFORMAT*
  type: Integer   // MFStandardVideoFormat
): Integer; stdcall;
  external 'MFPlat.dll' name 'MFInitVideoFormat';

result := DllCall("MFPlat\MFInitVideoFormat"
    , "Ptr", pVideoFormat   ; MFVIDEOFORMAT*
    , "Int", type   ; MFStandardVideoFormat
    , "Int")   ; return: HRESULT

●MFInitVideoFormat(pVideoFormat, type) = DLL("MFPlat.dll", "int MFInitVideoFormat(void*, int)")
# 呼び出し: MFInitVideoFormat(pVideoFormat, type)
# pVideoFormat : MFVIDEOFORMAT* -> "void*"
# type : MFStandardVideoFormat -> "int"
# 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)。