ホーム › System.Com.StructuredStorage › PropVariantToVariant

PropVariantToVariant

関数

PROPVARIANTの値を等価なVARIANT構造体へ変換する。

DLLPROPSYS.dll呼出規約winapi対応OSWindows Vista 以降

シグネチャ

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

HRESULT PropVariantToVariant(
    const PROPVARIANT* pPropVar,
    VARIANT* pVar
);

パラメーター

名前	型	方向
pPropVar	PROPVARIANT*	in
pVar	VARIANT*	out

戻り値の型: HRESULT

各言語での呼び出し定義

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

HRESULT PropVariantToVariant(
    const PROPVARIANT* pPropVar,
    VARIANT* pVar
);

[DllImport("PROPSYS.dll", ExactSpelling = true)]
static extern int PropVariantToVariant(
    IntPtr pPropVar,   // PROPVARIANT*
    IntPtr pVar   // VARIANT* out
);

<DllImport("PROPSYS.dll", ExactSpelling:=True)>
Public Shared Function PropVariantToVariant(
    pPropVar As IntPtr,   ' PROPVARIANT*
    pVar As IntPtr   ' VARIANT* out
) As Integer
End Function

' pPropVar : PROPVARIANT*
' pVar : VARIANT* out
Declare PtrSafe Function PropVariantToVariant Lib "propsys" ( _
    ByVal pPropVar As LongPtr, _
    ByVal pVar As LongPtr) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

PropVariantToVariant = ctypes.windll.propsys.PropVariantToVariant
PropVariantToVariant.restype = ctypes.c_int
PropVariantToVariant.argtypes = [
    ctypes.c_void_p,  # pPropVar : PROPVARIANT*
    ctypes.c_void_p,  # pVar : VARIANT* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('PROPSYS.dll')
PropVariantToVariant = Fiddle::Function.new(
  lib['PropVariantToVariant'],
  [
    Fiddle::TYPE_VOIDP,  # pPropVar : PROPVARIANT*
    Fiddle::TYPE_VOIDP,  # pVar : VARIANT* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "propsys")]
extern "system" {
    fn PropVariantToVariant(
        pPropVar: *const PROPVARIANT,  // PROPVARIANT*
        pVar: *mut VARIANT  // VARIANT* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("PROPSYS.dll")]
public static extern int PropVariantToVariant(IntPtr pPropVar, IntPtr pVar);
"@
$api = Add-Type -MemberDefinition $sig -Name 'PROPSYS_PropVariantToVariant' -Namespace Win32 -PassThru
# $api::PropVariantToVariant(pPropVar, pVar)

#uselib "PROPSYS.dll"
#func global PropVariantToVariant "PropVariantToVariant" sptr, sptr
; PropVariantToVariant varptr(pPropVar), varptr(pVar)   ; 戻り値は stat
; pPropVar : PROPVARIANT* -> "sptr"
; pVar : VARIANT* out -> "sptr"
; ※HSP3.7は #func のため戻り値はシステム変数 stat に格納されます。

出力引数:

#uselib "PROPSYS.dll"
#cfunc global PropVariantToVariant "PropVariantToVariant" var, var
; res = PropVariantToVariant(pPropVar, pVar)
; pPropVar : PROPVARIANT* -> "var"
; pVar : VARIANT* 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 "PROPSYS.dll"
#cfunc global PropVariantToVariant "PropVariantToVariant" sptr, sptr
; res = PropVariantToVariant(varptr(pPropVar), varptr(pVar))
; pPropVar : PROPVARIANT* -> "sptr"
; pVar : VARIANT* 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:

; HRESULT PropVariantToVariant(PROPVARIANT* pPropVar, VARIANT* pVar)
#uselib "PROPSYS.dll"
#cfunc global PropVariantToVariant "PropVariantToVariant" var, var
; res = PropVariantToVariant(pPropVar, pVar)
; pPropVar : PROPVARIANT* -> "var"
; pVar : VARIANT* 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。; HRESULT PropVariantToVariant(PROPVARIANT* pPropVar, VARIANT* pVar)
#uselib "PROPSYS.dll"
#cfunc global PropVariantToVariant "PropVariantToVariant" intptr, intptr
; res = PropVariantToVariant(varptr(pPropVar), varptr(pVar))
; pPropVar : PROPVARIANT* -> "intptr"
; pVar : VARIANT* 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 (
	propsys = windows.NewLazySystemDLL("PROPSYS.dll")
	procPropVariantToVariant = propsys.NewProc("PropVariantToVariant")
)

// pPropVar (PROPVARIANT*), pVar (VARIANT* out)
r1, _, err := procPropVariantToVariant.Call(
	uintptr(pPropVar),
	uintptr(pVar),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function PropVariantToVariant(
  pPropVar: Pointer;   // PROPVARIANT*
  pVar: Pointer   // VARIANT* out
): Integer; stdcall;
  external 'PROPSYS.dll' name 'PropVariantToVariant';

result := DllCall("PROPSYS\PropVariantToVariant"
    , "Ptr", pPropVar   ; PROPVARIANT*
    , "Ptr", pVar   ; VARIANT* out
    , "Int")   ; return: HRESULT

●PropVariantToVariant(pPropVar, pVar) = DLL("PROPSYS.dll", "int PropVariantToVariant(void*, void*)")
# 呼び出し: PropVariantToVariant(pPropVar, pVar)
# pPropVar : PROPVARIANT* -> "void*"
# pVar : VARIANT* 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)。