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ClearPropVariantArray

関数

PROPVARIANTの配列内の全要素を解放して初期化する。

DLLPROPSYS.dll呼出規約winapi対応OSWindows XP 以降

シグネチャ

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

void ClearPropVariantArray(
    PROPVARIANT* rgPropVar,
    DWORD cVars
);

パラメーター

名前	型	方向
rgPropVar	PROPVARIANT*	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 ClearPropVariantArray(
    PROPVARIANT* rgPropVar,
    DWORD cVars
);

[DllImport("PROPSYS.dll", ExactSpelling = true)]
static extern void ClearPropVariantArray(
    IntPtr rgPropVar,   // PROPVARIANT* in/out
    uint cVars   // DWORD
);

<DllImport("PROPSYS.dll", ExactSpelling:=True)>
Public Shared Sub ClearPropVariantArray(
    rgPropVar As IntPtr,   ' PROPVARIANT* in/out
    cVars As UInteger   ' DWORD
)
End Sub

' rgPropVar : PROPVARIANT* in/out
' cVars : DWORD
Declare PtrSafe Sub ClearPropVariantArray Lib "propsys" ( _
    ByVal rgPropVar 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

ClearPropVariantArray = ctypes.windll.propsys.ClearPropVariantArray
ClearPropVariantArray.restype = None
ClearPropVariantArray.argtypes = [
    ctypes.c_void_p,  # rgPropVar : PROPVARIANT* in/out
    wintypes.DWORD,  # cVars : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('PROPSYS.dll')
ClearPropVariantArray = Fiddle::Function.new(
  lib['ClearPropVariantArray'],
  [
    Fiddle::TYPE_VOIDP,  # rgPropVar : PROPVARIANT* in/out
    -Fiddle::TYPE_INT,  # cVars : DWORD
  ],
  Fiddle::TYPE_VOID)

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

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

#uselib "PROPSYS.dll"
#func global ClearPropVariantArray "ClearPropVariantArray" sptr, sptr
; ClearPropVariantArray varptr(rgPropVar), cVars
; rgPropVar : PROPVARIANT* in/out -> "sptr"
; cVars : DWORD -> "sptr"

出力引数:

#uselib "PROPSYS.dll"
#func global ClearPropVariantArray "ClearPropVariantArray" var, int
; ClearPropVariantArray rgPropVar, cVars
; rgPropVar : PROPVARIANT* 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 ClearPropVariantArray "ClearPropVariantArray" sptr, int
; ClearPropVariantArray varptr(rgPropVar), cVars
; rgPropVar : PROPVARIANT* 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 ClearPropVariantArray(PROPVARIANT* rgPropVar, DWORD cVars)
#uselib "PROPSYS.dll"
#func global ClearPropVariantArray "ClearPropVariantArray" var, int
; ClearPropVariantArray rgPropVar, cVars
; rgPropVar : PROPVARIANT* 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 ClearPropVariantArray(PROPVARIANT* rgPropVar, DWORD cVars)
#uselib "PROPSYS.dll"
#func global ClearPropVariantArray "ClearPropVariantArray" intptr, int
; ClearPropVariantArray varptr(rgPropVar), cVars
; rgPropVar : PROPVARIANT* 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")
	procClearPropVariantArray = propsys.NewProc("ClearPropVariantArray")
)

// rgPropVar (PROPVARIANT* in/out), cVars (DWORD)
r1, _, err := procClearPropVariantArray.Call(
	uintptr(rgPropVar),
	uintptr(cVars),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // void

procedure ClearPropVariantArray(
  rgPropVar: Pointer;   // PROPVARIANT* in/out
  cVars: DWORD   // DWORD
); stdcall;
  external 'PROPSYS.dll' name 'ClearPropVariantArray';

result := DllCall("PROPSYS\ClearPropVariantArray"
    , "Ptr", rgPropVar   ; PROPVARIANT* in/out
    , "UInt", cVars   ; DWORD
    , "Int")   ; return: void

●ClearPropVariantArray(rgPropVar, cVars) = DLL("PROPSYS.dll", "int ClearPropVariantArray(void*, dword)")
# 呼び出し: ClearPropVariantArray(rgPropVar, cVars)
# rgPropVar : PROPVARIANT* 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)。