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

MFHeapFree

関数
MFHeapAllocで確保したメモリーを解放する。
DLLMFPlat.dll呼出規約winapi対応OSWindows Vista 以降

シグネチャ

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

void MFHeapFree(
    void* pv
);

パラメーター

名前方向
pvvoid*inout

戻り値の型: void

各言語での呼び出し定義

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

void MFHeapFree(
    void* pv
);
[DllImport("MFPlat.dll", ExactSpelling = true)]
static extern void MFHeapFree(
    IntPtr pv   // void* in/out
);
<DllImport("MFPlat.dll", ExactSpelling:=True)>
Public Shared Sub MFHeapFree(
    pv As IntPtr   ' void* in/out
)
End Sub
' pv : void* in/out
Declare PtrSafe Sub MFHeapFree Lib "mfplat" ( _
    ByVal pv As LongPtr)
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。
import ctypes
from ctypes import wintypes

MFHeapFree = ctypes.windll.mfplat.MFHeapFree
MFHeapFree.restype = None
MFHeapFree.argtypes = [
    ctypes.POINTER(None),  # pv : void* in/out
]
require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('MFPlat.dll')
MFHeapFree = Fiddle::Function.new(
  lib['MFHeapFree'],
  [
    Fiddle::TYPE_VOIDP,  # pv : void* in/out
  ],
  Fiddle::TYPE_VOID)
#[link(name = "mfplat")]
extern "system" {
    fn MFHeapFree(
        pv: *mut ()  // void* in/out
    );
}
// crates: windows-sys provides ready-made bindings for this API.
$sig = @"
[DllImport("MFPlat.dll")]
public static extern void MFHeapFree(IntPtr pv);
"@
$api = Add-Type -MemberDefinition $sig -Name 'MFPlat_MFHeapFree' -Namespace Win32 -PassThru
# $api::MFHeapFree(pv)
#uselib "MFPlat.dll"
#func global MFHeapFree "MFHeapFree" sptr
; MFHeapFree pv
; pv : void* in/out -> "sptr"
#uselib "MFPlat.dll"
#func global MFHeapFree "MFHeapFree" sptr
; MFHeapFree pv
; pv : void* in/out -> "sptr"
; void MFHeapFree(void* pv)
#uselib "MFPlat.dll"
#func global MFHeapFree "MFHeapFree" intptr
; MFHeapFree pv
; pv : void* in/out -> "intptr"
import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	mfplat = windows.NewLazySystemDLL("MFPlat.dll")
	procMFHeapFree = mfplat.NewProc("MFHeapFree")
)

// pv (void* in/out)
r1, _, err := procMFHeapFree.Call(
	uintptr(pv),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // void
procedure MFHeapFree(
  pv: Pointer   // void* in/out
); stdcall;
  external 'MFPlat.dll' name 'MFHeapFree';
result := DllCall("MFPlat\MFHeapFree"
    , "Ptr", pv   ; void* in/out
    , "Int")   ; return: void
●MFHeapFree(pv) = DLL("MFPlat.dll", "int MFHeapFree(void*)")
# 呼び出し: MFHeapFree(pv)
# pv : void* in/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)。