MFInitVideoFormat_RGB

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

HRESULT MFInitVideoFormat_RGB(
    MFVIDEOFORMAT* pVideoFormat,
    DWORD dwWidth,
    DWORD dwHeight,
    DWORD D3Dfmt
);

<DllImport("MFPlat.dll", ExactSpelling:=True)>
Public Shared Function MFInitVideoFormat_RGB(
    pVideoFormat As IntPtr,   ' MFVIDEOFORMAT*
    dwWidth As UInteger,   ' DWORD
    dwHeight As UInteger,   ' DWORD
    D3Dfmt As UInteger   ' DWORD
) As Integer
End Function

' pVideoFormat : MFVIDEOFORMAT*
' dwWidth : DWORD
' dwHeight : DWORD
' D3Dfmt : DWORD
Declare PtrSafe Function MFInitVideoFormat_RGB Lib "mfplat" ( _
    ByVal pVideoFormat As LongPtr, _
    ByVal dwWidth As Long, _
    ByVal dwHeight As Long, _
    ByVal D3Dfmt 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_RGB = ctypes.windll.mfplat.MFInitVideoFormat_RGB
MFInitVideoFormat_RGB.restype = ctypes.c_int
MFInitVideoFormat_RGB.argtypes = [
    ctypes.c_void_p,  # pVideoFormat : MFVIDEOFORMAT*
    wintypes.DWORD,  # dwWidth : DWORD
    wintypes.DWORD,  # dwHeight : DWORD
    wintypes.DWORD,  # D3Dfmt : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('MFPlat.dll')
MFInitVideoFormat_RGB = Fiddle::Function.new(
  lib['MFInitVideoFormat_RGB'],
  [
    Fiddle::TYPE_VOIDP,  # pVideoFormat : MFVIDEOFORMAT*
    -Fiddle::TYPE_INT,  # dwWidth : DWORD
    -Fiddle::TYPE_INT,  # dwHeight : DWORD
    -Fiddle::TYPE_INT,  # D3Dfmt : DWORD
  ],
  Fiddle::TYPE_INT)

#[link(name = "mfplat")]
extern "system" {
    fn MFInitVideoFormat_RGB(
        pVideoFormat: *mut MFVIDEOFORMAT,  // MFVIDEOFORMAT*
        dwWidth: u32,  // DWORD
        dwHeight: u32,  // DWORD
        D3Dfmt: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("MFPlat.dll")]
public static extern int MFInitVideoFormat_RGB(IntPtr pVideoFormat, uint dwWidth, uint dwHeight, uint D3Dfmt);
"@
$api = Add-Type -MemberDefinition $sig -Name 'MFPlat_MFInitVideoFormat_RGB' -Namespace Win32 -PassThru
# $api::MFInitVideoFormat_RGB(pVideoFormat, dwWidth, dwHeight, D3Dfmt)

#uselib "MFPlat.dll"
#func global MFInitVideoFormat_RGB "MFInitVideoFormat_RGB" sptr, sptr, sptr, sptr
; MFInitVideoFormat_RGB varptr(pVideoFormat), dwWidth, dwHeight, D3Dfmt   ; 戻り値は stat
; pVideoFormat : MFVIDEOFORMAT* -> "sptr"
; dwWidth : DWORD -> "sptr"
; dwHeight : DWORD -> "sptr"
; D3Dfmt : DWORD -> "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_RGB "MFInitVideoFormat_RGB" var, int, int, int
; res = MFInitVideoFormat_RGB(pVideoFormat, dwWidth, dwHeight, D3Dfmt)
; pVideoFormat : MFVIDEOFORMAT* -> "var"
; dwWidth : DWORD -> "int"
; dwHeight : DWORD -> "int"
; D3Dfmt : DWORD -> "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_RGB(MFVIDEOFORMAT* pVideoFormat, DWORD dwWidth, DWORD dwHeight, DWORD D3Dfmt)
#uselib "MFPlat.dll"
#cfunc global MFInitVideoFormat_RGB "MFInitVideoFormat_RGB" var, int, int, int
; res = MFInitVideoFormat_RGB(pVideoFormat, dwWidth, dwHeight, D3Dfmt)
; pVideoFormat : MFVIDEOFORMAT* -> "var"
; dwWidth : DWORD -> "int"
; dwHeight : DWORD -> "int"
; D3Dfmt : DWORD -> "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_RGB = mfplat.NewProc("MFInitVideoFormat_RGB")
)

// pVideoFormat (MFVIDEOFORMAT*), dwWidth (DWORD), dwHeight (DWORD), D3Dfmt (DWORD)
r1, _, err := procMFInitVideoFormat_RGB.Call(
	uintptr(pVideoFormat),
	uintptr(dwWidth),
	uintptr(dwHeight),
	uintptr(D3Dfmt),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function MFInitVideoFormat_RGB(
  pVideoFormat: Pointer;   // MFVIDEOFORMAT*
  dwWidth: DWORD;   // DWORD
  dwHeight: DWORD;   // DWORD
  D3Dfmt: DWORD   // DWORD
): Integer; stdcall;
  external 'MFPlat.dll' name 'MFInitVideoFormat_RGB';

result := DllCall("MFPlat\MFInitVideoFormat_RGB"
    , "Ptr", pVideoFormat   ; MFVIDEOFORMAT*
    , "UInt", dwWidth   ; DWORD
    , "UInt", dwHeight   ; DWORD
    , "UInt", D3Dfmt   ; DWORD
    , "Int")   ; return: HRESULT

●MFInitVideoFormat_RGB(pVideoFormat, dwWidth, dwHeight, D3Dfmt) = DLL("MFPlat.dll", "int MFInitVideoFormat_RGB(void*, dword, dword, dword)")
# 呼び出し: MFInitVideoFormat_RGB(pVideoFormat, dwWidth, dwHeight, D3Dfmt)
# pVideoFormat : MFVIDEOFORMAT* -> "void*"
# dwWidth : DWORD -> "dword"
# dwHeight : DWORD -> "dword"
# D3Dfmt : DWORD -> "dword"
# 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)。