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SystemTimeToTzSpecificLocalTimeEx

関数

動的タイムゾーンでUTC時刻をローカル時刻に変換する。

DLLKERNEL32.dll呼出規約winapiSetLastErrorあり対応OSWindows 7 以降

シグネチャ

// KERNEL32.dll
#include <windows.h>

BOOL SystemTimeToTzSpecificLocalTimeEx(
    const DYNAMIC_TIME_ZONE_INFORMATION* lpTimeZoneInformation,   // optional
    const SYSTEMTIME* lpUniversalTime,
    SYSTEMTIME* lpLocalTime
);

パラメーター

名前	型	方向
lpTimeZoneInformation	DYNAMIC_TIME_ZONE_INFORMATION*	inoptional
lpUniversalTime	SYSTEMTIME*	in
lpLocalTime	SYSTEMTIME*	out

戻り値の型: BOOL

各言語での呼び出し定義

// KERNEL32.dll
#include <windows.h>

BOOL SystemTimeToTzSpecificLocalTimeEx(
    const DYNAMIC_TIME_ZONE_INFORMATION* lpTimeZoneInformation,   // optional
    const SYSTEMTIME* lpUniversalTime,
    SYSTEMTIME* lpLocalTime
);

[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("KERNEL32.dll", SetLastError = true, ExactSpelling = true)]
static extern bool SystemTimeToTzSpecificLocalTimeEx(
    IntPtr lpTimeZoneInformation,   // DYNAMIC_TIME_ZONE_INFORMATION* optional
    IntPtr lpUniversalTime,   // SYSTEMTIME*
    IntPtr lpLocalTime   // SYSTEMTIME* out
);

<DllImport("KERNEL32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function SystemTimeToTzSpecificLocalTimeEx(
    lpTimeZoneInformation As IntPtr,   ' DYNAMIC_TIME_ZONE_INFORMATION* optional
    lpUniversalTime As IntPtr,   ' SYSTEMTIME*
    lpLocalTime As IntPtr   ' SYSTEMTIME* out
) As Boolean
End Function

' lpTimeZoneInformation : DYNAMIC_TIME_ZONE_INFORMATION* optional
' lpUniversalTime : SYSTEMTIME*
' lpLocalTime : SYSTEMTIME* out
Declare PtrSafe Function SystemTimeToTzSpecificLocalTimeEx Lib "kernel32" ( _
    ByVal lpTimeZoneInformation As LongPtr, _
    ByVal lpUniversalTime As LongPtr, _
    ByVal lpLocalTime 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

SystemTimeToTzSpecificLocalTimeEx = ctypes.windll.kernel32.SystemTimeToTzSpecificLocalTimeEx
SystemTimeToTzSpecificLocalTimeEx.restype = wintypes.BOOL
SystemTimeToTzSpecificLocalTimeEx.argtypes = [
    ctypes.c_void_p,  # lpTimeZoneInformation : DYNAMIC_TIME_ZONE_INFORMATION* optional
    ctypes.c_void_p,  # lpUniversalTime : SYSTEMTIME*
    ctypes.c_void_p,  # lpLocalTime : SYSTEMTIME* out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
SystemTimeToTzSpecificLocalTimeEx = Fiddle::Function.new(
  lib['SystemTimeToTzSpecificLocalTimeEx'],
  [
    Fiddle::TYPE_VOIDP,  # lpTimeZoneInformation : DYNAMIC_TIME_ZONE_INFORMATION* optional
    Fiddle::TYPE_VOIDP,  # lpUniversalTime : SYSTEMTIME*
    Fiddle::TYPE_VOIDP,  # lpLocalTime : SYSTEMTIME* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "kernel32")]
extern "system" {
    fn SystemTimeToTzSpecificLocalTimeEx(
        lpTimeZoneInformation: *const DYNAMIC_TIME_ZONE_INFORMATION,  // DYNAMIC_TIME_ZONE_INFORMATION* optional
        lpUniversalTime: *const SYSTEMTIME,  // SYSTEMTIME*
        lpLocalTime: *mut SYSTEMTIME  // SYSTEMTIME* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("KERNEL32.dll", SetLastError = true)]
public static extern bool SystemTimeToTzSpecificLocalTimeEx(IntPtr lpTimeZoneInformation, IntPtr lpUniversalTime, IntPtr lpLocalTime);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_SystemTimeToTzSpecificLocalTimeEx' -Namespace Win32 -PassThru
# $api::SystemTimeToTzSpecificLocalTimeEx(lpTimeZoneInformation, lpUniversalTime, lpLocalTime)

#uselib "KERNEL32.dll"
#func global SystemTimeToTzSpecificLocalTimeEx "SystemTimeToTzSpecificLocalTimeEx" sptr, sptr, sptr
; SystemTimeToTzSpecificLocalTimeEx varptr(lpTimeZoneInformation), varptr(lpUniversalTime), varptr(lpLocalTime)   ; 戻り値は stat
; lpTimeZoneInformation : DYNAMIC_TIME_ZONE_INFORMATION* optional -> "sptr"
; lpUniversalTime : SYSTEMTIME* -> "sptr"
; lpLocalTime : SYSTEMTIME* 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 "KERNEL32.dll"
#cfunc global SystemTimeToTzSpecificLocalTimeEx "SystemTimeToTzSpecificLocalTimeEx" var, var, var
; res = SystemTimeToTzSpecificLocalTimeEx(lpTimeZoneInformation, lpUniversalTime, lpLocalTime)
; lpTimeZoneInformation : DYNAMIC_TIME_ZONE_INFORMATION* optional -> "var"
; lpUniversalTime : SYSTEMTIME* -> "var"
; lpLocalTime : SYSTEMTIME* 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 "KERNEL32.dll"
#cfunc global SystemTimeToTzSpecificLocalTimeEx "SystemTimeToTzSpecificLocalTimeEx" sptr, sptr, sptr
; res = SystemTimeToTzSpecificLocalTimeEx(varptr(lpTimeZoneInformation), varptr(lpUniversalTime), varptr(lpLocalTime))
; lpTimeZoneInformation : DYNAMIC_TIME_ZONE_INFORMATION* optional -> "sptr"
; lpUniversalTime : SYSTEMTIME* -> "sptr"
; lpLocalTime : SYSTEMTIME* 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:

; BOOL SystemTimeToTzSpecificLocalTimeEx(DYNAMIC_TIME_ZONE_INFORMATION* lpTimeZoneInformation, SYSTEMTIME* lpUniversalTime, SYSTEMTIME* lpLocalTime)
#uselib "KERNEL32.dll"
#cfunc global SystemTimeToTzSpecificLocalTimeEx "SystemTimeToTzSpecificLocalTimeEx" var, var, var
; res = SystemTimeToTzSpecificLocalTimeEx(lpTimeZoneInformation, lpUniversalTime, lpLocalTime)
; lpTimeZoneInformation : DYNAMIC_TIME_ZONE_INFORMATION* optional -> "var"
; lpUniversalTime : SYSTEMTIME* -> "var"
; lpLocalTime : SYSTEMTIME* 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。; BOOL SystemTimeToTzSpecificLocalTimeEx(DYNAMIC_TIME_ZONE_INFORMATION* lpTimeZoneInformation, SYSTEMTIME* lpUniversalTime, SYSTEMTIME* lpLocalTime)
#uselib "KERNEL32.dll"
#cfunc global SystemTimeToTzSpecificLocalTimeEx "SystemTimeToTzSpecificLocalTimeEx" intptr, intptr, intptr
; res = SystemTimeToTzSpecificLocalTimeEx(varptr(lpTimeZoneInformation), varptr(lpUniversalTime), varptr(lpLocalTime))
; lpTimeZoneInformation : DYNAMIC_TIME_ZONE_INFORMATION* optional -> "intptr"
; lpUniversalTime : SYSTEMTIME* -> "intptr"
; lpLocalTime : SYSTEMTIME* 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 (
	kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
	procSystemTimeToTzSpecificLocalTimeEx = kernel32.NewProc("SystemTimeToTzSpecificLocalTimeEx")
)

// lpTimeZoneInformation (DYNAMIC_TIME_ZONE_INFORMATION* optional), lpUniversalTime (SYSTEMTIME*), lpLocalTime (SYSTEMTIME* out)
r1, _, err := procSystemTimeToTzSpecificLocalTimeEx.Call(
	uintptr(lpTimeZoneInformation),
	uintptr(lpUniversalTime),
	uintptr(lpLocalTime),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function SystemTimeToTzSpecificLocalTimeEx(
  lpTimeZoneInformation: Pointer;   // DYNAMIC_TIME_ZONE_INFORMATION* optional
  lpUniversalTime: Pointer;   // SYSTEMTIME*
  lpLocalTime: Pointer   // SYSTEMTIME* out
): BOOL; stdcall;
  external 'KERNEL32.dll' name 'SystemTimeToTzSpecificLocalTimeEx';

result := DllCall("KERNEL32\SystemTimeToTzSpecificLocalTimeEx"
    , "Ptr", lpTimeZoneInformation   ; DYNAMIC_TIME_ZONE_INFORMATION* optional
    , "Ptr", lpUniversalTime   ; SYSTEMTIME*
    , "Ptr", lpLocalTime   ; SYSTEMTIME* out
    , "Int")   ; return: BOOL

●SystemTimeToTzSpecificLocalTimeEx(lpTimeZoneInformation, lpUniversalTime, lpLocalTime) = DLL("KERNEL32.dll", "bool SystemTimeToTzSpecificLocalTimeEx(void*, void*, void*)")
# 呼び出し: SystemTimeToTzSpecificLocalTimeEx(lpTimeZoneInformation, lpUniversalTime, lpLocalTime)
# lpTimeZoneInformation : DYNAMIC_TIME_ZONE_INFORMATION* optional -> "void*"
# lpUniversalTime : SYSTEMTIME* -> "void*"
# lpLocalTime : SYSTEMTIME* 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)。