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CryptMemFree

関数

CryptMemAllocで確保したメモリを解放する。

DLLCRYPT32.dll呼出規約winapi対応OSWindows XP 以降

シグネチャ

// CRYPT32.dll
#include <windows.h>

void CryptMemFree(
    void* pv   // optional
);

パラメーター

名前	型	方向
pv	void*	inoptional

戻り値の型: void

各言語での呼び出し定義

// CRYPT32.dll
#include <windows.h>

void CryptMemFree(
    void* pv   // optional
);

[DllImport("CRYPT32.dll", ExactSpelling = true)]
static extern void CryptMemFree(
    IntPtr pv   // void* optional
);

<DllImport("CRYPT32.dll", ExactSpelling:=True)>
Public Shared Sub CryptMemFree(
    pv As IntPtr   ' void* optional
)
End Sub

' pv : void* optional
Declare PtrSafe Sub CryptMemFree Lib "crypt32" ( _
    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

CryptMemFree = ctypes.windll.crypt32.CryptMemFree
CryptMemFree.restype = None
CryptMemFree.argtypes = [
    ctypes.POINTER(None),  # pv : void* optional
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('CRYPT32.dll')
CryptMemFree = Fiddle::Function.new(
  lib['CryptMemFree'],
  [
    Fiddle::TYPE_VOIDP,  # pv : void* optional
  ],
  Fiddle::TYPE_VOID)

#[link(name = "crypt32")]
extern "system" {
    fn CryptMemFree(
        pv: *mut ()  // void* optional
    );
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("CRYPT32.dll")]
public static extern void CryptMemFree(IntPtr pv);
"@
$api = Add-Type -MemberDefinition $sig -Name 'CRYPT32_CryptMemFree' -Namespace Win32 -PassThru
# $api::CryptMemFree(pv)

#uselib "CRYPT32.dll"
#func global CryptMemFree "CryptMemFree" sptr
; CryptMemFree pv
; pv : void* optional -> "sptr"

#uselib "CRYPT32.dll"
#func global CryptMemFree "CryptMemFree" sptr
; CryptMemFree pv
; pv : void* optional -> "sptr"

; void CryptMemFree(void* pv)
#uselib "CRYPT32.dll"
#func global CryptMemFree "CryptMemFree" intptr
; CryptMemFree pv
; pv : void* optional -> "intptr"

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

var (
	crypt32 = windows.NewLazySystemDLL("CRYPT32.dll")
	procCryptMemFree = crypt32.NewProc("CryptMemFree")
)

// pv (void* optional)
r1, _, err := procCryptMemFree.Call(
	uintptr(pv),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // void

procedure CryptMemFree(
  pv: Pointer   // void* optional
); stdcall;
  external 'CRYPT32.dll' name 'CryptMemFree';

result := DllCall("CRYPT32\CryptMemFree"
    , "Ptr", pv   ; void* optional
    , "Int")   ; return: void

●CryptMemFree(pv) = DLL("CRYPT32.dll", "int CryptMemFree(void*)")
# 呼び出し: CryptMemFree(pv)
# pv : void* optional -> "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)。