ホーム › System.Variant › VariantToUInt32WithDefault

VariantToUInt32WithDefault

関数

VARIANTを32ビット符号なし整数へ変換し、失敗時は既定値を返す。

DLLPROPSYS.dll呼出規約winapi対応OSWindows XP 以降

シグネチャ

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

DWORD VariantToUInt32WithDefault(
    const VARIANT* varIn,
    DWORD ulDefault
);

パラメーター

名前	型	方向
varIn	VARIANT*	in
ulDefault	DWORD	in

戻り値の型: DWORD

各言語での呼び出し定義

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

DWORD VariantToUInt32WithDefault(
    const VARIANT* varIn,
    DWORD ulDefault
);

[DllImport("PROPSYS.dll", ExactSpelling = true)]
static extern uint VariantToUInt32WithDefault(
    IntPtr varIn,   // VARIANT*
    uint ulDefault   // DWORD
);

<DllImport("PROPSYS.dll", ExactSpelling:=True)>
Public Shared Function VariantToUInt32WithDefault(
    varIn As IntPtr,   ' VARIANT*
    ulDefault As UInteger   ' DWORD
) As UInteger
End Function

' varIn : VARIANT*
' ulDefault : DWORD
Declare PtrSafe Function VariantToUInt32WithDefault Lib "propsys" ( _
    ByVal varIn As LongPtr, _
    ByVal ulDefault As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

VariantToUInt32WithDefault = ctypes.windll.propsys.VariantToUInt32WithDefault
VariantToUInt32WithDefault.restype = wintypes.DWORD
VariantToUInt32WithDefault.argtypes = [
    ctypes.c_void_p,  # varIn : VARIANT*
    wintypes.DWORD,  # ulDefault : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('PROPSYS.dll')
VariantToUInt32WithDefault = Fiddle::Function.new(
  lib['VariantToUInt32WithDefault'],
  [
    Fiddle::TYPE_VOIDP,  # varIn : VARIANT*
    -Fiddle::TYPE_INT,  # ulDefault : DWORD
  ],
  -Fiddle::TYPE_INT)

#[link(name = "propsys")]
extern "system" {
    fn VariantToUInt32WithDefault(
        varIn: *const VARIANT,  // VARIANT*
        ulDefault: u32  // DWORD
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("PROPSYS.dll")]
public static extern uint VariantToUInt32WithDefault(IntPtr varIn, uint ulDefault);
"@
$api = Add-Type -MemberDefinition $sig -Name 'PROPSYS_VariantToUInt32WithDefault' -Namespace Win32 -PassThru
# $api::VariantToUInt32WithDefault(varIn, ulDefault)

#uselib "PROPSYS.dll"
#func global VariantToUInt32WithDefault "VariantToUInt32WithDefault" sptr, sptr
; VariantToUInt32WithDefault varptr(varIn), ulDefault   ; 戻り値は stat
; varIn : VARIANT* -> "sptr"
; ulDefault : DWORD -> "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 VariantToUInt32WithDefault "VariantToUInt32WithDefault" var, int
; res = VariantToUInt32WithDefault(varIn, ulDefault)
; varIn : VARIANT* -> "var"
; ulDefault : 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"
#cfunc global VariantToUInt32WithDefault "VariantToUInt32WithDefault" sptr, int
; res = VariantToUInt32WithDefault(varptr(varIn), ulDefault)
; varIn : VARIANT* -> "sptr"
; ulDefault : 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:

; DWORD VariantToUInt32WithDefault(VARIANT* varIn, DWORD ulDefault)
#uselib "PROPSYS.dll"
#cfunc global VariantToUInt32WithDefault "VariantToUInt32WithDefault" var, int
; res = VariantToUInt32WithDefault(varIn, ulDefault)
; varIn : VARIANT* -> "var"
; ulDefault : 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。; DWORD VariantToUInt32WithDefault(VARIANT* varIn, DWORD ulDefault)
#uselib "PROPSYS.dll"
#cfunc global VariantToUInt32WithDefault "VariantToUInt32WithDefault" intptr, int
; res = VariantToUInt32WithDefault(varptr(varIn), ulDefault)
; varIn : VARIANT* -> "intptr"
; ulDefault : 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")
	procVariantToUInt32WithDefault = propsys.NewProc("VariantToUInt32WithDefault")
)

// varIn (VARIANT*), ulDefault (DWORD)
r1, _, err := procVariantToUInt32WithDefault.Call(
	uintptr(varIn),
	uintptr(ulDefault),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function VariantToUInt32WithDefault(
  varIn: Pointer;   // VARIANT*
  ulDefault: DWORD   // DWORD
): DWORD; stdcall;
  external 'PROPSYS.dll' name 'VariantToUInt32WithDefault';

result := DllCall("PROPSYS\VariantToUInt32WithDefault"
    , "Ptr", varIn   ; VARIANT*
    , "UInt", ulDefault   ; DWORD
    , "UInt")   ; return: DWORD

●VariantToUInt32WithDefault(varIn, ulDefault) = DLL("PROPSYS.dll", "dword VariantToUInt32WithDefault(void*, dword)")
# 呼び出し: VariantToUInt32WithDefault(varIn, ulDefault)
# varIn : VARIANT* -> "void*"
# ulDefault : 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)。