ホーム › Devices.Sensors › GetPerformanceTime

GetPerformanceTime

関数

高分解能のパフォーマンス時刻をミリ秒単位で取得する。

シグネチャ

// SensorsUtilsV2.dll
#include <windows.h>

NTSTATUS GetPerformanceTime(
    DWORD* TimeMs
);

パラメーター

名前	型	方向
TimeMs	DWORD*	out

戻り値の型: NTSTATUS

各言語での呼び出し定義

// SensorsUtilsV2.dll
#include <windows.h>

NTSTATUS GetPerformanceTime(
    DWORD* TimeMs
);

[DllImport("SensorsUtilsV2.dll", ExactSpelling = true)]
static extern int GetPerformanceTime(
    out uint TimeMs   // DWORD* out
);

<DllImport("SensorsUtilsV2.dll", ExactSpelling:=True)>
Public Shared Function GetPerformanceTime(
    <Out> ByRef TimeMs As UInteger   ' DWORD* out
) As Integer
End Function

' TimeMs : DWORD* out
Declare PtrSafe Function GetPerformanceTime Lib "sensorsutilsv2" ( _
    ByRef TimeMs 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

GetPerformanceTime = ctypes.windll.sensorsutilsv2.GetPerformanceTime
GetPerformanceTime.restype = ctypes.c_int
GetPerformanceTime.argtypes = [
    ctypes.POINTER(wintypes.DWORD),  # TimeMs : DWORD* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('SensorsUtilsV2.dll')
GetPerformanceTime = Fiddle::Function.new(
  lib['GetPerformanceTime'],
  [
    Fiddle::TYPE_VOIDP,  # TimeMs : DWORD* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "sensorsutilsv2")]
extern "system" {
    fn GetPerformanceTime(
        TimeMs: *mut u32  // DWORD* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("SensorsUtilsV2.dll")]
public static extern int GetPerformanceTime(out uint TimeMs);
"@
$api = Add-Type -MemberDefinition $sig -Name 'SensorsUtilsV2_GetPerformanceTime' -Namespace Win32 -PassThru
# $api::GetPerformanceTime(TimeMs)

#uselib "SensorsUtilsV2.dll"
#func global GetPerformanceTime "GetPerformanceTime" sptr
; GetPerformanceTime varptr(TimeMs)   ; 戻り値は stat
; TimeMs : DWORD* 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 "SensorsUtilsV2.dll"
#cfunc global GetPerformanceTime "GetPerformanceTime" var
; res = GetPerformanceTime(TimeMs)
; TimeMs : DWORD* 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 "SensorsUtilsV2.dll"
#cfunc global GetPerformanceTime "GetPerformanceTime" sptr
; res = GetPerformanceTime(varptr(TimeMs))
; TimeMs : DWORD* 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:

; NTSTATUS GetPerformanceTime(DWORD* TimeMs)
#uselib "SensorsUtilsV2.dll"
#cfunc global GetPerformanceTime "GetPerformanceTime" var
; res = GetPerformanceTime(TimeMs)
; TimeMs : DWORD* 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。; NTSTATUS GetPerformanceTime(DWORD* TimeMs)
#uselib "SensorsUtilsV2.dll"
#cfunc global GetPerformanceTime "GetPerformanceTime" intptr
; res = GetPerformanceTime(varptr(TimeMs))
; TimeMs : DWORD* 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 (
	sensorsutilsv2 = windows.NewLazySystemDLL("SensorsUtilsV2.dll")
	procGetPerformanceTime = sensorsutilsv2.NewProc("GetPerformanceTime")
)

// TimeMs (DWORD* out)
r1, _, err := procGetPerformanceTime.Call(
	uintptr(TimeMs),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // NTSTATUS

function GetPerformanceTime(
  TimeMs: Pointer   // DWORD* out
): Integer; stdcall;
  external 'SensorsUtilsV2.dll' name 'GetPerformanceTime';

result := DllCall("SensorsUtilsV2\GetPerformanceTime"
    , "Ptr", TimeMs   ; DWORD* out
    , "Int")   ; return: NTSTATUS

●GetPerformanceTime(TimeMs) = DLL("SensorsUtilsV2.dll", "int GetPerformanceTime(void*)")
# 呼び出し: GetPerformanceTime(TimeMs)
# TimeMs : DWORD* 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)。