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BSTR_UserFree

関数

アンマーシャリングしたBSTRのリソースを解放する。

DLLOLEAUT32.dll呼出規約winapi

シグネチャ

// OLEAUT32.dll
#include <windows.h>

void BSTR_UserFree(
    DWORD* param0,
    LPWSTR* param1
);

パラメーター

名前	型	方向
param0	DWORD*	in
param1	LPWSTR*	in

戻り値の型: void

各言語での呼び出し定義

// OLEAUT32.dll
#include <windows.h>

void BSTR_UserFree(
    DWORD* param0,
    LPWSTR* param1
);

[DllImport("OLEAUT32.dll", ExactSpelling = true)]
static extern void BSTR_UserFree(
    ref uint param0,   // DWORD*
    IntPtr param1   // LPWSTR*
);

<DllImport("OLEAUT32.dll", ExactSpelling:=True)>
Public Shared Sub BSTR_UserFree(
    ByRef param0 As UInteger,   ' DWORD*
    param1 As IntPtr   ' LPWSTR*
)
End Sub

' param0 : DWORD*
' param1 : LPWSTR*
Declare PtrSafe Sub BSTR_UserFree Lib "oleaut32" ( _
    ByRef param0 As Long, _
    ByVal param1 As LongPtr)
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

BSTR_UserFree = ctypes.windll.oleaut32.BSTR_UserFree
BSTR_UserFree.restype = None
BSTR_UserFree.argtypes = [
    ctypes.POINTER(wintypes.DWORD),  # param0 : DWORD*
    ctypes.c_void_p,  # param1 : LPWSTR*
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('OLEAUT32.dll')
BSTR_UserFree = Fiddle::Function.new(
  lib['BSTR_UserFree'],
  [
    Fiddle::TYPE_VOIDP,  # param0 : DWORD*
    Fiddle::TYPE_VOIDP,  # param1 : LPWSTR*
  ],
  Fiddle::TYPE_VOID)

#[link(name = "oleaut32")]
extern "system" {
    fn BSTR_UserFree(
        param0: *mut u32,  // DWORD*
        param1: *mut *mut u16  // LPWSTR*
    );
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("OLEAUT32.dll")]
public static extern void BSTR_UserFree(ref uint param0, IntPtr param1);
"@
$api = Add-Type -MemberDefinition $sig -Name 'OLEAUT32_BSTR_UserFree' -Namespace Win32 -PassThru
# $api::BSTR_UserFree(param0, param1)

#uselib "OLEAUT32.dll"
#func global BSTR_UserFree "BSTR_UserFree" sptr, sptr
; BSTR_UserFree varptr(param0), varptr(param1)
; param0 : DWORD* -> "sptr"
; param1 : LPWSTR* -> "sptr"

出力引数:

#uselib "OLEAUT32.dll"
#func global BSTR_UserFree "BSTR_UserFree" var, var
; BSTR_UserFree param0, param1
; param0 : DWORD* -> "var"
; param1 : LPWSTR* -> "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 "OLEAUT32.dll"
#func global BSTR_UserFree "BSTR_UserFree" sptr, sptr
; BSTR_UserFree varptr(param0), varptr(param1)
; param0 : DWORD* -> "sptr"
; param1 : LPWSTR* -> "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 BSTR_UserFree(DWORD* param0, LPWSTR* param1)
#uselib "OLEAUT32.dll"
#func global BSTR_UserFree "BSTR_UserFree" var, var
; BSTR_UserFree param0, param1
; param0 : DWORD* -> "var"
; param1 : LPWSTR* -> "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 BSTR_UserFree(DWORD* param0, LPWSTR* param1)
#uselib "OLEAUT32.dll"
#func global BSTR_UserFree "BSTR_UserFree" intptr, intptr
; BSTR_UserFree varptr(param0), varptr(param1)
; param0 : DWORD* -> "intptr"
; param1 : LPWSTR* -> "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 (
	oleaut32 = windows.NewLazySystemDLL("OLEAUT32.dll")
	procBSTR_UserFree = oleaut32.NewProc("BSTR_UserFree")
)

// param0 (DWORD*), param1 (LPWSTR*)
r1, _, err := procBSTR_UserFree.Call(
	uintptr(param0),
	uintptr(param1),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // void

procedure BSTR_UserFree(
  param0: Pointer;   // DWORD*
  param1: PPWideChar   // LPWSTR*
); stdcall;
  external 'OLEAUT32.dll' name 'BSTR_UserFree';

result := DllCall("OLEAUT32\BSTR_UserFree"
    , "Ptr", param0   ; DWORD*
    , "Ptr", param1   ; LPWSTR*
    , "Int")   ; return: void

●BSTR_UserFree(param0, param1) = DLL("OLEAUT32.dll", "int BSTR_UserFree(void*, void*)")
# 呼び出し: BSTR_UserFree(param0, param1)
# param0 : DWORD* -> "void*"
# param1 : LPWSTR* -> "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)。