Win32 API 日本語リファレンス
ホームMedia.MediaFoundation › MFInitMediaTypeFromMFVideoFormat

MFInitMediaTypeFromMFVideoFormat

関数
MFVIDEOFORMATからメディア型を初期化する。
DLLMFPlat.dll呼出規約winapi対応OSWindows Vista 以降

シグネチャ

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

HRESULT MFInitMediaTypeFromMFVideoFormat(
    IMFMediaType* pMFType,
    const MFVIDEOFORMAT* pMFVF,
    DWORD cbBufSize
);

パラメーター

名前方向
pMFTypeIMFMediaType*in
pMFVFMFVIDEOFORMAT*in
cbBufSizeDWORDin

戻り値の型: HRESULT

各言語での呼び出し定義

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

HRESULT MFInitMediaTypeFromMFVideoFormat(
    IMFMediaType* pMFType,
    const MFVIDEOFORMAT* pMFVF,
    DWORD cbBufSize
);
[DllImport("MFPlat.dll", ExactSpelling = true)]
static extern int MFInitMediaTypeFromMFVideoFormat(
    IntPtr pMFType,   // IMFMediaType*
    IntPtr pMFVF,   // MFVIDEOFORMAT*
    uint cbBufSize   // DWORD
);
<DllImport("MFPlat.dll", ExactSpelling:=True)>
Public Shared Function MFInitMediaTypeFromMFVideoFormat(
    pMFType As IntPtr,   ' IMFMediaType*
    pMFVF As IntPtr,   ' MFVIDEOFORMAT*
    cbBufSize As UInteger   ' DWORD
) As Integer
End Function
' pMFType : IMFMediaType*
' pMFVF : MFVIDEOFORMAT*
' cbBufSize : DWORD
Declare PtrSafe Function MFInitMediaTypeFromMFVideoFormat Lib "mfplat" ( _
    ByVal pMFType As LongPtr, _
    ByVal pMFVF As LongPtr, _
    ByVal cbBufSize 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

MFInitMediaTypeFromMFVideoFormat = ctypes.windll.mfplat.MFInitMediaTypeFromMFVideoFormat
MFInitMediaTypeFromMFVideoFormat.restype = ctypes.c_int
MFInitMediaTypeFromMFVideoFormat.argtypes = [
    ctypes.c_void_p,  # pMFType : IMFMediaType*
    ctypes.c_void_p,  # pMFVF : MFVIDEOFORMAT*
    wintypes.DWORD,  # cbBufSize : DWORD
]
require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('MFPlat.dll')
MFInitMediaTypeFromMFVideoFormat = Fiddle::Function.new(
  lib['MFInitMediaTypeFromMFVideoFormat'],
  [
    Fiddle::TYPE_VOIDP,  # pMFType : IMFMediaType*
    Fiddle::TYPE_VOIDP,  # pMFVF : MFVIDEOFORMAT*
    -Fiddle::TYPE_INT,  # cbBufSize : DWORD
  ],
  Fiddle::TYPE_INT)
#[link(name = "mfplat")]
extern "system" {
    fn MFInitMediaTypeFromMFVideoFormat(
        pMFType: *mut core::ffi::c_void,  // IMFMediaType*
        pMFVF: *const MFVIDEOFORMAT,  // MFVIDEOFORMAT*
        cbBufSize: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.
$sig = @"
[DllImport("MFPlat.dll")]
public static extern int MFInitMediaTypeFromMFVideoFormat(IntPtr pMFType, IntPtr pMFVF, uint cbBufSize);
"@
$api = Add-Type -MemberDefinition $sig -Name 'MFPlat_MFInitMediaTypeFromMFVideoFormat' -Namespace Win32 -PassThru
# $api::MFInitMediaTypeFromMFVideoFormat(pMFType, pMFVF, cbBufSize)
#uselib "MFPlat.dll"
#func global MFInitMediaTypeFromMFVideoFormat "MFInitMediaTypeFromMFVideoFormat" sptr, sptr, sptr
; MFInitMediaTypeFromMFVideoFormat pMFType, varptr(pMFVF), cbBufSize   ; 戻り値は stat
; pMFType : IMFMediaType* -> "sptr"
; pMFVF : MFVIDEOFORMAT* -> "sptr"
; cbBufSize : 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。
出力引数:
#uselib "MFPlat.dll"
#cfunc global MFInitMediaTypeFromMFVideoFormat "MFInitMediaTypeFromMFVideoFormat" sptr, var, int
; res = MFInitMediaTypeFromMFVideoFormat(pMFType, pMFVF, cbBufSize)
; pMFType : IMFMediaType* -> "sptr"
; pMFVF : MFVIDEOFORMAT* -> "var"
; cbBufSize : 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。
出力引数:
; HRESULT MFInitMediaTypeFromMFVideoFormat(IMFMediaType* pMFType, MFVIDEOFORMAT* pMFVF, DWORD cbBufSize)
#uselib "MFPlat.dll"
#cfunc global MFInitMediaTypeFromMFVideoFormat "MFInitMediaTypeFromMFVideoFormat" intptr, var, int
; res = MFInitMediaTypeFromMFVideoFormat(pMFType, pMFVF, cbBufSize)
; pMFType : IMFMediaType* -> "intptr"
; pMFVF : MFVIDEOFORMAT* -> "var"
; cbBufSize : 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")
	procMFInitMediaTypeFromMFVideoFormat = mfplat.NewProc("MFInitMediaTypeFromMFVideoFormat")
)

// pMFType (IMFMediaType*), pMFVF (MFVIDEOFORMAT*), cbBufSize (DWORD)
r1, _, err := procMFInitMediaTypeFromMFVideoFormat.Call(
	uintptr(pMFType),
	uintptr(pMFVF),
	uintptr(cbBufSize),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT
function MFInitMediaTypeFromMFVideoFormat(
  pMFType: Pointer;   // IMFMediaType*
  pMFVF: Pointer;   // MFVIDEOFORMAT*
  cbBufSize: DWORD   // DWORD
): Integer; stdcall;
  external 'MFPlat.dll' name 'MFInitMediaTypeFromMFVideoFormat';
result := DllCall("MFPlat\MFInitMediaTypeFromMFVideoFormat"
    , "Ptr", pMFType   ; IMFMediaType*
    , "Ptr", pMFVF   ; MFVIDEOFORMAT*
    , "UInt", cbBufSize   ; DWORD
    , "Int")   ; return: HRESULT
●MFInitMediaTypeFromMFVideoFormat(pMFType, pMFVF, cbBufSize) = DLL("MFPlat.dll", "int MFInitMediaTypeFromMFVideoFormat(void*, void*, dword)")
# 呼び出し: MFInitMediaTypeFromMFVideoFormat(pMFType, pMFVF, cbBufSize)
# pMFType : IMFMediaType* -> "void*"
# pMFVF : MFVIDEOFORMAT* -> "void*"
# cbBufSize : 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)。