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GetSystemTimePreciseAsFileTime

関数

高精度な現在のシステム時刻をFILETIME形式で取得する。

DLLKERNEL32.dll呼出規約winapi対応OSwindows8.0

シグネチャ

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

void GetSystemTimePreciseAsFileTime(
    FILETIME* lpSystemTimeAsFileTime
);

パラメーター

名前	型	方向
lpSystemTimeAsFileTime	FILETIME*	out

戻り値の型: void

各言語での呼び出し定義

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

void GetSystemTimePreciseAsFileTime(
    FILETIME* lpSystemTimeAsFileTime
);

[DllImport("KERNEL32.dll", ExactSpelling = true)]
static extern void GetSystemTimePreciseAsFileTime(
    IntPtr lpSystemTimeAsFileTime   // FILETIME* out
);

<DllImport("KERNEL32.dll", ExactSpelling:=True)>
Public Shared Sub GetSystemTimePreciseAsFileTime(
    lpSystemTimeAsFileTime As IntPtr   ' FILETIME* out
)
End Sub

' lpSystemTimeAsFileTime : FILETIME* out
Declare PtrSafe Sub GetSystemTimePreciseAsFileTime Lib "kernel32" ( _
    ByVal lpSystemTimeAsFileTime As LongPtr)
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

GetSystemTimePreciseAsFileTime = ctypes.windll.kernel32.GetSystemTimePreciseAsFileTime
GetSystemTimePreciseAsFileTime.restype = None
GetSystemTimePreciseAsFileTime.argtypes = [
    ctypes.c_void_p,  # lpSystemTimeAsFileTime : FILETIME* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
GetSystemTimePreciseAsFileTime = Fiddle::Function.new(
  lib['GetSystemTimePreciseAsFileTime'],
  [
    Fiddle::TYPE_VOIDP,  # lpSystemTimeAsFileTime : FILETIME* out
  ],
  Fiddle::TYPE_VOID)

#[link(name = "kernel32")]
extern "system" {
    fn GetSystemTimePreciseAsFileTime(
        lpSystemTimeAsFileTime: *mut FILETIME  // FILETIME* out
    );
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("KERNEL32.dll")]
public static extern void GetSystemTimePreciseAsFileTime(IntPtr lpSystemTimeAsFileTime);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_GetSystemTimePreciseAsFileTime' -Namespace Win32 -PassThru
# $api::GetSystemTimePreciseAsFileTime(lpSystemTimeAsFileTime)

#uselib "KERNEL32.dll"
#func global GetSystemTimePreciseAsFileTime "GetSystemTimePreciseAsFileTime" sptr
; GetSystemTimePreciseAsFileTime varptr(lpSystemTimeAsFileTime)
; lpSystemTimeAsFileTime : FILETIME* out -> "sptr"

出力引数:

#uselib "KERNEL32.dll"
#func global GetSystemTimePreciseAsFileTime "GetSystemTimePreciseAsFileTime" var
; GetSystemTimePreciseAsFileTime lpSystemTimeAsFileTime
; lpSystemTimeAsFileTime : FILETIME* 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"
#func global GetSystemTimePreciseAsFileTime "GetSystemTimePreciseAsFileTime" sptr
; GetSystemTimePreciseAsFileTime varptr(lpSystemTimeAsFileTime)
; lpSystemTimeAsFileTime : FILETIME* 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:

; void GetSystemTimePreciseAsFileTime(FILETIME* lpSystemTimeAsFileTime)
#uselib "KERNEL32.dll"
#func global GetSystemTimePreciseAsFileTime "GetSystemTimePreciseAsFileTime" var
; GetSystemTimePreciseAsFileTime lpSystemTimeAsFileTime
; lpSystemTimeAsFileTime : FILETIME* 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。; void GetSystemTimePreciseAsFileTime(FILETIME* lpSystemTimeAsFileTime)
#uselib "KERNEL32.dll"
#func global GetSystemTimePreciseAsFileTime "GetSystemTimePreciseAsFileTime" intptr
; GetSystemTimePreciseAsFileTime varptr(lpSystemTimeAsFileTime)
; lpSystemTimeAsFileTime : FILETIME* 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")
	procGetSystemTimePreciseAsFileTime = kernel32.NewProc("GetSystemTimePreciseAsFileTime")
)

// lpSystemTimeAsFileTime (FILETIME* out)
r1, _, err := procGetSystemTimePreciseAsFileTime.Call(
	uintptr(lpSystemTimeAsFileTime),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // void

procedure GetSystemTimePreciseAsFileTime(
  lpSystemTimeAsFileTime: Pointer   // FILETIME* out
); stdcall;
  external 'KERNEL32.dll' name 'GetSystemTimePreciseAsFileTime';

result := DllCall("KERNEL32\GetSystemTimePreciseAsFileTime"
    , "Ptr", lpSystemTimeAsFileTime   ; FILETIME* out
    , "Int")   ; return: void

●GetSystemTimePreciseAsFileTime(lpSystemTimeAsFileTime) = DLL("KERNEL32.dll", "int GetSystemTimePreciseAsFileTime(void*)")
# 呼び出し: GetSystemTimePreciseAsFileTime(lpSystemTimeAsFileTime)
# lpSystemTimeAsFileTime : FILETIME* 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)。