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MFGetSupportedMimeTypes

関数

メディアソースが対応するMIMEタイプの一覧を取得する。

DLLMFPlat.dll呼出規約winapi対応OSWindows Vista 以降

シグネチャ

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

HRESULT MFGetSupportedMimeTypes(
    PROPVARIANT* pPropVarMimeTypeArray
);

パラメーター

名前	型	方向
pPropVarMimeTypeArray	PROPVARIANT*	out

戻り値の型: HRESULT

各言語での呼び出し定義

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

HRESULT MFGetSupportedMimeTypes(
    PROPVARIANT* pPropVarMimeTypeArray
);

[DllImport("MFPlat.dll", ExactSpelling = true)]
static extern int MFGetSupportedMimeTypes(
    IntPtr pPropVarMimeTypeArray   // PROPVARIANT* out
);

<DllImport("MFPlat.dll", ExactSpelling:=True)>
Public Shared Function MFGetSupportedMimeTypes(
    pPropVarMimeTypeArray As IntPtr   ' PROPVARIANT* out
) As Integer
End Function

' pPropVarMimeTypeArray : PROPVARIANT* out
Declare PtrSafe Function MFGetSupportedMimeTypes Lib "mfplat" ( _
    ByVal pPropVarMimeTypeArray 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

MFGetSupportedMimeTypes = ctypes.windll.mfplat.MFGetSupportedMimeTypes
MFGetSupportedMimeTypes.restype = ctypes.c_int
MFGetSupportedMimeTypes.argtypes = [
    ctypes.c_void_p,  # pPropVarMimeTypeArray : PROPVARIANT* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('MFPlat.dll')
MFGetSupportedMimeTypes = Fiddle::Function.new(
  lib['MFGetSupportedMimeTypes'],
  [
    Fiddle::TYPE_VOIDP,  # pPropVarMimeTypeArray : PROPVARIANT* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "mfplat")]
extern "system" {
    fn MFGetSupportedMimeTypes(
        pPropVarMimeTypeArray: *mut PROPVARIANT  // PROPVARIANT* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("MFPlat.dll")]
public static extern int MFGetSupportedMimeTypes(IntPtr pPropVarMimeTypeArray);
"@
$api = Add-Type -MemberDefinition $sig -Name 'MFPlat_MFGetSupportedMimeTypes' -Namespace Win32 -PassThru
# $api::MFGetSupportedMimeTypes(pPropVarMimeTypeArray)

#uselib "MFPlat.dll"
#func global MFGetSupportedMimeTypes "MFGetSupportedMimeTypes" sptr
; MFGetSupportedMimeTypes varptr(pPropVarMimeTypeArray)   ; 戻り値は stat
; pPropVarMimeTypeArray : PROPVARIANT* 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。

出力引数:

#uselib "MFPlat.dll"
#cfunc global MFGetSupportedMimeTypes "MFGetSupportedMimeTypes" var
; res = MFGetSupportedMimeTypes(pPropVarMimeTypeArray)
; pPropVarMimeTypeArray : PROPVARIANT* 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。#uselib "MFPlat.dll"
#cfunc global MFGetSupportedMimeTypes "MFGetSupportedMimeTypes" sptr
; res = MFGetSupportedMimeTypes(varptr(pPropVarMimeTypeArray))
; pPropVarMimeTypeArray : PROPVARIANT* out -> "sptr"
; ※出力/バッファ引数はポインタ方式(token=sptr / 呼び出しは varptr(変数))。

出力引数:

; HRESULT MFGetSupportedMimeTypes(PROPVARIANT* pPropVarMimeTypeArray)
#uselib "MFPlat.dll"
#cfunc global MFGetSupportedMimeTypes "MFGetSupportedMimeTypes" var
; res = MFGetSupportedMimeTypes(pPropVarMimeTypeArray)
; pPropVarMimeTypeArray : PROPVARIANT* 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 MFGetSupportedMimeTypes(PROPVARIANT* pPropVarMimeTypeArray)
#uselib "MFPlat.dll"
#cfunc global MFGetSupportedMimeTypes "MFGetSupportedMimeTypes" intptr
; res = MFGetSupportedMimeTypes(varptr(pPropVarMimeTypeArray))
; pPropVarMimeTypeArray : PROPVARIANT* out -> "intptr"
; ※出力/バッファ引数はポインタ方式(token=intptr / 呼び出しは varptr(変数))。

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	mfplat = windows.NewLazySystemDLL("MFPlat.dll")
	procMFGetSupportedMimeTypes = mfplat.NewProc("MFGetSupportedMimeTypes")
)

// pPropVarMimeTypeArray (PROPVARIANT* out)
r1, _, err := procMFGetSupportedMimeTypes.Call(
	uintptr(pPropVarMimeTypeArray),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function MFGetSupportedMimeTypes(
  pPropVarMimeTypeArray: Pointer   // PROPVARIANT* out
): Integer; stdcall;
  external 'MFPlat.dll' name 'MFGetSupportedMimeTypes';

result := DllCall("MFPlat\MFGetSupportedMimeTypes"
    , "Ptr", pPropVarMimeTypeArray   ; PROPVARIANT* out
    , "Int")   ; return: HRESULT

●MFGetSupportedMimeTypes(pPropVarMimeTypeArray) = DLL("MFPlat.dll", "int MFGetSupportedMimeTypes(void*)")
# 呼び出し: MFGetSupportedMimeTypes(pPropVarMimeTypeArray)
# pPropVarMimeTypeArray : PROPVARIANT* 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)。