ホーム › System.Com.StructuredStorage › VariantToPropVariant

VariantToPropVariant

関数

VARIANTの値を等価なPROPVARIANT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 VariantToPropVariant(
    const VARIANT* pVar,
    PROPVARIANT* pPropVar
);

パラメーター

名前	型	方向
pVar	VARIANT*	in
pPropVar	PROPVARIANT*	out

戻り値の型: HRESULT

各言語での呼び出し定義

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

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

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

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

' pVar : VARIANT*
' pPropVar : PROPVARIANT* out
Declare PtrSafe Function VariantToPropVariant Lib "propsys" ( _
    ByVal pVar As LongPtr, _
    ByVal pPropVar 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

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

require 'fiddle'
require 'fiddle/import'

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

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

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

#uselib "PROPSYS.dll"
#func global VariantToPropVariant "VariantToPropVariant" sptr, sptr
; VariantToPropVariant varptr(pVar), varptr(pPropVar)   ; 戻り値は stat
; pVar : VARIANT* -> "sptr"
; pPropVar : PROPVARIANT* 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 VariantToPropVariant "VariantToPropVariant" var, var
; res = VariantToPropVariant(pVar, pPropVar)
; pVar : VARIANT* -> "var"
; pPropVar : PROPVARIANT* 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 VariantToPropVariant "VariantToPropVariant" sptr, sptr
; res = VariantToPropVariant(varptr(pVar), varptr(pPropVar))
; pVar : VARIANT* -> "sptr"
; pPropVar : PROPVARIANT* 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 VariantToPropVariant(VARIANT* pVar, PROPVARIANT* pPropVar)
#uselib "PROPSYS.dll"
#cfunc global VariantToPropVariant "VariantToPropVariant" var, var
; res = VariantToPropVariant(pVar, pPropVar)
; pVar : VARIANT* -> "var"
; pPropVar : PROPVARIANT* 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 VariantToPropVariant(VARIANT* pVar, PROPVARIANT* pPropVar)
#uselib "PROPSYS.dll"
#cfunc global VariantToPropVariant "VariantToPropVariant" intptr, intptr
; res = VariantToPropVariant(varptr(pVar), varptr(pPropVar))
; pVar : VARIANT* -> "intptr"
; pPropVar : PROPVARIANT* 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")
	procVariantToPropVariant = propsys.NewProc("VariantToPropVariant")
)

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

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

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

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