Win32 API 日本語リファレンス
ホームSystem.WindowsProgramming › QueryAuxiliaryCounterFrequency

QueryAuxiliaryCounterFrequency

関数
補助カウンタの周波数を取得する。
DLLapi-ms-win-core-realtime-l1-1-2.dll呼出規約winapi対応OSWindows 10 以降

シグネチャ

// api-ms-win-core-realtime-l1-1-2.dll
#include <windows.h>

HRESULT QueryAuxiliaryCounterFrequency(
    ULONGLONG* lpAuxiliaryCounterFrequency
);

パラメーター

名前方向
lpAuxiliaryCounterFrequencyULONGLONG*out

戻り値の型: HRESULT

各言語での呼び出し定義

// api-ms-win-core-realtime-l1-1-2.dll
#include <windows.h>

HRESULT QueryAuxiliaryCounterFrequency(
    ULONGLONG* lpAuxiliaryCounterFrequency
);
[DllImport("api-ms-win-core-realtime-l1-1-2.dll", ExactSpelling = true)]
static extern int QueryAuxiliaryCounterFrequency(
    out ulong lpAuxiliaryCounterFrequency   // ULONGLONG* out
);
<DllImport("api-ms-win-core-realtime-l1-1-2.dll", ExactSpelling:=True)>
Public Shared Function QueryAuxiliaryCounterFrequency(
    <Out> ByRef lpAuxiliaryCounterFrequency As ULong   ' ULONGLONG* out
) As Integer
End Function
' lpAuxiliaryCounterFrequency : ULONGLONG* out
Declare PtrSafe Function QueryAuxiliaryCounterFrequency Lib "api-ms-win-core-realtime-l1-1-2" ( _
    ByRef lpAuxiliaryCounterFrequency As LongLong) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。
import ctypes
from ctypes import wintypes

QueryAuxiliaryCounterFrequency = ctypes.windll.LoadLibrary("api-ms-win-core-realtime-l1-1-2.dll").QueryAuxiliaryCounterFrequency
QueryAuxiliaryCounterFrequency.restype = ctypes.c_int
QueryAuxiliaryCounterFrequency.argtypes = [
    ctypes.POINTER(ctypes.c_ulonglong),  # lpAuxiliaryCounterFrequency : ULONGLONG* out
]
require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('api-ms-win-core-realtime-l1-1-2.dll')
QueryAuxiliaryCounterFrequency = Fiddle::Function.new(
  lib['QueryAuxiliaryCounterFrequency'],
  [
    Fiddle::TYPE_VOIDP,  # lpAuxiliaryCounterFrequency : ULONGLONG* out
  ],
  Fiddle::TYPE_INT)
#[link(name = "api-ms-win-core-realtime-l1-1-2")]
extern "system" {
    fn QueryAuxiliaryCounterFrequency(
        lpAuxiliaryCounterFrequency: *mut u64  // ULONGLONG* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.
$sig = @"
[DllImport("api-ms-win-core-realtime-l1-1-2.dll")]
public static extern int QueryAuxiliaryCounterFrequency(out ulong lpAuxiliaryCounterFrequency);
"@
$api = Add-Type -MemberDefinition $sig -Name 'api-ms-win-core-realtime-l1-1-2_QueryAuxiliaryCounterFrequency' -Namespace Win32 -PassThru
# $api::QueryAuxiliaryCounterFrequency(lpAuxiliaryCounterFrequency)
#uselib "api-ms-win-core-realtime-l1-1-2.dll"
#func global QueryAuxiliaryCounterFrequency "QueryAuxiliaryCounterFrequency" sptr
; QueryAuxiliaryCounterFrequency varptr(lpAuxiliaryCounterFrequency)   ; 戻り値は stat
; lpAuxiliaryCounterFrequency : ULONGLONG* 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 "api-ms-win-core-realtime-l1-1-2.dll"
#cfunc global QueryAuxiliaryCounterFrequency "QueryAuxiliaryCounterFrequency" var
; res = QueryAuxiliaryCounterFrequency(lpAuxiliaryCounterFrequency)
; lpAuxiliaryCounterFrequency : ULONGLONG* 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。
出力引数:
; HRESULT QueryAuxiliaryCounterFrequency(ULONGLONG* lpAuxiliaryCounterFrequency)
#uselib "api-ms-win-core-realtime-l1-1-2.dll"
#cfunc global QueryAuxiliaryCounterFrequency "QueryAuxiliaryCounterFrequency" var
; res = QueryAuxiliaryCounterFrequency(lpAuxiliaryCounterFrequency)
; lpAuxiliaryCounterFrequency : ULONGLONG* 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。
import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	api_ms_win_core_realtime_l1_1_2 = windows.NewLazySystemDLL("api-ms-win-core-realtime-l1-1-2.dll")
	procQueryAuxiliaryCounterFrequency = api_ms_win_core_realtime_l1_1_2.NewProc("QueryAuxiliaryCounterFrequency")
)

// lpAuxiliaryCounterFrequency (ULONGLONG* out)
r1, _, err := procQueryAuxiliaryCounterFrequency.Call(
	uintptr(lpAuxiliaryCounterFrequency),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT
function QueryAuxiliaryCounterFrequency(
  lpAuxiliaryCounterFrequency: Pointer   // ULONGLONG* out
): Integer; stdcall;
  external 'api-ms-win-core-realtime-l1-1-2.dll' name 'QueryAuxiliaryCounterFrequency';
result := DllCall("api-ms-win-core-realtime-l1-1-2\QueryAuxiliaryCounterFrequency"
    , "Ptr", lpAuxiliaryCounterFrequency   ; ULONGLONG* out
    , "Int")   ; return: HRESULT
●QueryAuxiliaryCounterFrequency(lpAuxiliaryCounterFrequency) = DLL("api-ms-win-core-realtime-l1-1-2.dll", "int QueryAuxiliaryCounterFrequency(void*)")
# 呼び出し: QueryAuxiliaryCounterFrequency(lpAuxiliaryCounterFrequency)
# lpAuxiliaryCounterFrequency : ULONGLONG* 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)。