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RtlFreeUnicodeString

関数

Unicode文字列に割り当てられたバッファを解放する。

DLLntdll.dll呼出規約winapi対応OSWindows 2000 以降

シグネチャ

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

void RtlFreeUnicodeString(
    UNICODE_STRING* UnicodeString
);

パラメーター

名前	型	方向
UnicodeString	UNICODE_STRING*	inout

戻り値の型: void

各言語での呼び出し定義

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

void RtlFreeUnicodeString(
    UNICODE_STRING* UnicodeString
);

[DllImport("ntdll.dll", ExactSpelling = true)]
static extern void RtlFreeUnicodeString(
    IntPtr UnicodeString   // UNICODE_STRING* in/out
);

<DllImport("ntdll.dll", ExactSpelling:=True)>
Public Shared Sub RtlFreeUnicodeString(
    UnicodeString As IntPtr   ' UNICODE_STRING* in/out
)
End Sub

' UnicodeString : UNICODE_STRING* in/out
Declare PtrSafe Sub RtlFreeUnicodeString Lib "ntdll" ( _
    ByVal UnicodeString As LongPtr)
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

RtlFreeUnicodeString = ctypes.windll.ntdll.RtlFreeUnicodeString
RtlFreeUnicodeString.restype = None
RtlFreeUnicodeString.argtypes = [
    ctypes.c_void_p,  # UnicodeString : UNICODE_STRING* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ntdll.dll')
RtlFreeUnicodeString = Fiddle::Function.new(
  lib['RtlFreeUnicodeString'],
  [
    Fiddle::TYPE_VOIDP,  # UnicodeString : UNICODE_STRING* in/out
  ],
  Fiddle::TYPE_VOID)

#[link(name = "ntdll")]
extern "system" {
    fn RtlFreeUnicodeString(
        UnicodeString: *mut UNICODE_STRING  // UNICODE_STRING* in/out
    );
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("ntdll.dll")]
public static extern void RtlFreeUnicodeString(IntPtr UnicodeString);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ntdll_RtlFreeUnicodeString' -Namespace Win32 -PassThru
# $api::RtlFreeUnicodeString(UnicodeString)

#uselib "ntdll.dll"
#func global RtlFreeUnicodeString "RtlFreeUnicodeString" sptr
; RtlFreeUnicodeString varptr(UnicodeString)
; UnicodeString : UNICODE_STRING* in/out -> "sptr"

出力引数:

#uselib "ntdll.dll"
#func global RtlFreeUnicodeString "RtlFreeUnicodeString" var
; RtlFreeUnicodeString UnicodeString
; UnicodeString : UNICODE_STRING* in/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 "ntdll.dll"
#func global RtlFreeUnicodeString "RtlFreeUnicodeString" sptr
; RtlFreeUnicodeString varptr(UnicodeString)
; UnicodeString : UNICODE_STRING* in/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:

; void RtlFreeUnicodeString(UNICODE_STRING* UnicodeString)
#uselib "ntdll.dll"
#func global RtlFreeUnicodeString "RtlFreeUnicodeString" var
; RtlFreeUnicodeString UnicodeString
; UnicodeString : UNICODE_STRING* in/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。; void RtlFreeUnicodeString(UNICODE_STRING* UnicodeString)
#uselib "ntdll.dll"
#func global RtlFreeUnicodeString "RtlFreeUnicodeString" intptr
; RtlFreeUnicodeString varptr(UnicodeString)
; UnicodeString : UNICODE_STRING* in/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 (
	ntdll = windows.NewLazySystemDLL("ntdll.dll")
	procRtlFreeUnicodeString = ntdll.NewProc("RtlFreeUnicodeString")
)

// UnicodeString (UNICODE_STRING* in/out)
r1, _, err := procRtlFreeUnicodeString.Call(
	uintptr(UnicodeString),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // void

procedure RtlFreeUnicodeString(
  UnicodeString: Pointer   // UNICODE_STRING* in/out
); stdcall;
  external 'ntdll.dll' name 'RtlFreeUnicodeString';

result := DllCall("ntdll\RtlFreeUnicodeString"
    , "Ptr", UnicodeString   ; UNICODE_STRING* in/out
    , "Int")   ; return: void

●RtlFreeUnicodeString(UnicodeString) = DLL("ntdll.dll", "int RtlFreeUnicodeString(void*)")
# 呼び出し: RtlFreeUnicodeString(UnicodeString)
# UnicodeString : UNICODE_STRING* 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)。