ホーム › System.Variant › ClearVariantArray

ClearVariantArray

関数

VARIANT配列の各要素を解放してクリアする。

DLLPROPSYS.dll呼出規約winapi対応OSWindows XP 以降

シグネチャ

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

void ClearVariantArray(
    VARIANT* pvars,
    DWORD cvars
);

パラメーター

名前	型	方向
pvars	VARIANT*	inout
cvars	DWORD	in

戻り値の型: void

各言語での呼び出し定義

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

void ClearVariantArray(
    VARIANT* pvars,
    DWORD cvars
);

[DllImport("PROPSYS.dll", ExactSpelling = true)]
static extern void ClearVariantArray(
    IntPtr pvars,   // VARIANT* in/out
    uint cvars   // DWORD
);

<DllImport("PROPSYS.dll", ExactSpelling:=True)>
Public Shared Sub ClearVariantArray(
    pvars As IntPtr,   ' VARIANT* in/out
    cvars As UInteger   ' DWORD
)
End Sub

' pvars : VARIANT* in/out
' cvars : DWORD
Declare PtrSafe Sub ClearVariantArray Lib "propsys" ( _
    ByVal pvars As LongPtr, _
    ByVal cvars As Long)
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

ClearVariantArray = ctypes.windll.propsys.ClearVariantArray
ClearVariantArray.restype = None
ClearVariantArray.argtypes = [
    ctypes.c_void_p,  # pvars : VARIANT* in/out
    wintypes.DWORD,  # cvars : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('PROPSYS.dll')
ClearVariantArray = Fiddle::Function.new(
  lib['ClearVariantArray'],
  [
    Fiddle::TYPE_VOIDP,  # pvars : VARIANT* in/out
    -Fiddle::TYPE_INT,  # cvars : DWORD
  ],
  Fiddle::TYPE_VOID)

#[link(name = "propsys")]
extern "system" {
    fn ClearVariantArray(
        pvars: *mut VARIANT,  // VARIANT* in/out
        cvars: u32  // DWORD
    );
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("PROPSYS.dll")]
public static extern void ClearVariantArray(IntPtr pvars, uint cvars);
"@
$api = Add-Type -MemberDefinition $sig -Name 'PROPSYS_ClearVariantArray' -Namespace Win32 -PassThru
# $api::ClearVariantArray(pvars, cvars)

#uselib "PROPSYS.dll"
#func global ClearVariantArray "ClearVariantArray" sptr, sptr
; ClearVariantArray varptr(pvars), cvars
; pvars : VARIANT* in/out -> "sptr"
; cvars : DWORD -> "sptr"

出力引数:

#uselib "PROPSYS.dll"
#func global ClearVariantArray "ClearVariantArray" var, int
; ClearVariantArray pvars, cvars
; pvars : VARIANT* in/out -> "var"
; cvars : DWORD -> "int"
; ※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 "PROPSYS.dll"
#func global ClearVariantArray "ClearVariantArray" sptr, int
; ClearVariantArray varptr(pvars), cvars
; pvars : VARIANT* in/out -> "sptr"
; cvars : DWORD -> "int"
; ※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 ClearVariantArray(VARIANT* pvars, DWORD cvars)
#uselib "PROPSYS.dll"
#func global ClearVariantArray "ClearVariantArray" var, int
; ClearVariantArray pvars, cvars
; pvars : VARIANT* in/out -> "var"
; cvars : DWORD -> "int"
; ※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 ClearVariantArray(VARIANT* pvars, DWORD cvars)
#uselib "PROPSYS.dll"
#func global ClearVariantArray "ClearVariantArray" intptr, int
; ClearVariantArray varptr(pvars), cvars
; pvars : VARIANT* in/out -> "intptr"
; cvars : DWORD -> "int"
; ※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 (
	propsys = windows.NewLazySystemDLL("PROPSYS.dll")
	procClearVariantArray = propsys.NewProc("ClearVariantArray")
)

// pvars (VARIANT* in/out), cvars (DWORD)
r1, _, err := procClearVariantArray.Call(
	uintptr(pvars),
	uintptr(cvars),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // void

procedure ClearVariantArray(
  pvars: Pointer;   // VARIANT* in/out
  cvars: DWORD   // DWORD
); stdcall;
  external 'PROPSYS.dll' name 'ClearVariantArray';

result := DllCall("PROPSYS\ClearVariantArray"
    , "Ptr", pvars   ; VARIANT* in/out
    , "UInt", cvars   ; DWORD
    , "Int")   ; return: void

●ClearVariantArray(pvars, cvars) = DLL("PROPSYS.dll", "int ClearVariantArray(void*, dword)")
# 呼び出し: ClearVariantArray(pvars, cvars)
# pvars : VARIANT* in/out -> "void*"
# cvars : DWORD -> "dword"
# 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)。