ホーム › System.Variant › DosDateTimeToVariantTime

DosDateTimeToVariantTime

関数

MS-DOS形式の日付時刻をバリアント時刻に変換する。

DLLOLEAUT32.dll呼出規約winapi

シグネチャ

// OLEAUT32.dll
#include <windows.h>

INT DosDateTimeToVariantTime(
    WORD wDosDate,
    WORD wDosTime,
    DOUBLE* pvtime
);

パラメーター

名前	型	方向
wDosDate	WORD	in
wDosTime	WORD	in
pvtime	DOUBLE*	out

戻り値の型: INT

各言語での呼び出し定義

// OLEAUT32.dll
#include <windows.h>

INT DosDateTimeToVariantTime(
    WORD wDosDate,
    WORD wDosTime,
    DOUBLE* pvtime
);

[DllImport("OLEAUT32.dll", ExactSpelling = true)]
static extern int DosDateTimeToVariantTime(
    ushort wDosDate,   // WORD
    ushort wDosTime,   // WORD
    out double pvtime   // DOUBLE* out
);

<DllImport("OLEAUT32.dll", ExactSpelling:=True)>
Public Shared Function DosDateTimeToVariantTime(
    wDosDate As UShort,   ' WORD
    wDosTime As UShort,   ' WORD
    <Out> ByRef pvtime As Double   ' DOUBLE* out
) As Integer
End Function

' wDosDate : WORD
' wDosTime : WORD
' pvtime : DOUBLE* out
Declare PtrSafe Function DosDateTimeToVariantTime Lib "oleaut32" ( _
    ByVal wDosDate As Integer, _
    ByVal wDosTime As Integer, _
    ByRef pvtime As Double) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

DosDateTimeToVariantTime = ctypes.windll.oleaut32.DosDateTimeToVariantTime
DosDateTimeToVariantTime.restype = ctypes.c_int
DosDateTimeToVariantTime.argtypes = [
    ctypes.c_ushort,  # wDosDate : WORD
    ctypes.c_ushort,  # wDosTime : WORD
    ctypes.POINTER(ctypes.c_double),  # pvtime : DOUBLE* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('OLEAUT32.dll')
DosDateTimeToVariantTime = Fiddle::Function.new(
  lib['DosDateTimeToVariantTime'],
  [
    -Fiddle::TYPE_SHORT,  # wDosDate : WORD
    -Fiddle::TYPE_SHORT,  # wDosTime : WORD
    Fiddle::TYPE_VOIDP,  # pvtime : DOUBLE* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "oleaut32")]
extern "system" {
    fn DosDateTimeToVariantTime(
        wDosDate: u16,  // WORD
        wDosTime: u16,  // WORD
        pvtime: *mut f64  // DOUBLE* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("OLEAUT32.dll")]
public static extern int DosDateTimeToVariantTime(ushort wDosDate, ushort wDosTime, out double pvtime);
"@
$api = Add-Type -MemberDefinition $sig -Name 'OLEAUT32_DosDateTimeToVariantTime' -Namespace Win32 -PassThru
# $api::DosDateTimeToVariantTime(wDosDate, wDosTime, pvtime)

#uselib "OLEAUT32.dll"
#func global DosDateTimeToVariantTime "DosDateTimeToVariantTime" sptr, sptr, sptr
; DosDateTimeToVariantTime wDosDate, wDosTime, varptr(pvtime)   ; 戻り値は stat
; wDosDate : WORD -> "sptr"
; wDosTime : WORD -> "sptr"
; pvtime : DOUBLE* 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 "OLEAUT32.dll"
#cfunc global DosDateTimeToVariantTime "DosDateTimeToVariantTime" int, int, var
; res = DosDateTimeToVariantTime(wDosDate, wDosTime, pvtime)
; wDosDate : WORD -> "int"
; wDosTime : WORD -> "int"
; pvtime : DOUBLE* 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 "OLEAUT32.dll"
#cfunc global DosDateTimeToVariantTime "DosDateTimeToVariantTime" int, int, sptr
; res = DosDateTimeToVariantTime(wDosDate, wDosTime, varptr(pvtime))
; wDosDate : WORD -> "int"
; wDosTime : WORD -> "int"
; pvtime : DOUBLE* 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:

; INT DosDateTimeToVariantTime(WORD wDosDate, WORD wDosTime, DOUBLE* pvtime)
#uselib "OLEAUT32.dll"
#cfunc global DosDateTimeToVariantTime "DosDateTimeToVariantTime" int, int, var
; res = DosDateTimeToVariantTime(wDosDate, wDosTime, pvtime)
; wDosDate : WORD -> "int"
; wDosTime : WORD -> "int"
; pvtime : DOUBLE* 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。; INT DosDateTimeToVariantTime(WORD wDosDate, WORD wDosTime, DOUBLE* pvtime)
#uselib "OLEAUT32.dll"
#cfunc global DosDateTimeToVariantTime "DosDateTimeToVariantTime" int, int, intptr
; res = DosDateTimeToVariantTime(wDosDate, wDosTime, varptr(pvtime))
; wDosDate : WORD -> "int"
; wDosTime : WORD -> "int"
; pvtime : DOUBLE* 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 (
	oleaut32 = windows.NewLazySystemDLL("OLEAUT32.dll")
	procDosDateTimeToVariantTime = oleaut32.NewProc("DosDateTimeToVariantTime")
)

// wDosDate (WORD), wDosTime (WORD), pvtime (DOUBLE* out)
r1, _, err := procDosDateTimeToVariantTime.Call(
	uintptr(wDosDate),
	uintptr(wDosTime),
	uintptr(pvtime),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function DosDateTimeToVariantTime(
  wDosDate: Word;   // WORD
  wDosTime: Word;   // WORD
  pvtime: Pointer   // DOUBLE* out
): Integer; stdcall;
  external 'OLEAUT32.dll' name 'DosDateTimeToVariantTime';

result := DllCall("OLEAUT32\DosDateTimeToVariantTime"
    , "UShort", wDosDate   ; WORD
    , "UShort", wDosTime   ; WORD
    , "Ptr", pvtime   ; DOUBLE* out
    , "Int")   ; return: INT

●DosDateTimeToVariantTime(wDosDate, wDosTime, pvtime) = DLL("OLEAUT32.dll", "int DosDateTimeToVariantTime(int, int, void*)")
# 呼び出し: DosDateTimeToVariantTime(wDosDate, wDosTime, pvtime)
# wDosDate : WORD -> "int"
# wDosTime : WORD -> "int"
# pvtime : DOUBLE* 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)。