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PdhIsRealTimeQuery

関数

照会がリアルタイムデータ収集かどうかを判定する。

DLLpdh.dll呼出規約winapi対応OSWindows XP 以降

シグネチャ

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

BOOL PdhIsRealTimeQuery(
    PDH_HQUERY hQuery
);

パラメーター

名前	型	方向
hQuery	PDH_HQUERY	in

戻り値の型: BOOL

各言語での呼び出し定義

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

BOOL PdhIsRealTimeQuery(
    PDH_HQUERY hQuery
);

[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("pdh.dll", ExactSpelling = true)]
static extern bool PdhIsRealTimeQuery(
    IntPtr hQuery   // PDH_HQUERY
);

<DllImport("pdh.dll", ExactSpelling:=True)>
Public Shared Function PdhIsRealTimeQuery(
    hQuery As IntPtr   ' PDH_HQUERY
) As Boolean
End Function

' hQuery : PDH_HQUERY
Declare PtrSafe Function PdhIsRealTimeQuery Lib "pdh" ( _
    ByVal hQuery 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

PdhIsRealTimeQuery = ctypes.windll.pdh.PdhIsRealTimeQuery
PdhIsRealTimeQuery.restype = wintypes.BOOL
PdhIsRealTimeQuery.argtypes = [
    wintypes.HANDLE,  # hQuery : PDH_HQUERY
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('pdh.dll')
PdhIsRealTimeQuery = Fiddle::Function.new(
  lib['PdhIsRealTimeQuery'],
  [
    Fiddle::TYPE_VOIDP,  # hQuery : PDH_HQUERY
  ],
  Fiddle::TYPE_INT)

#[link(name = "pdh")]
extern "system" {
    fn PdhIsRealTimeQuery(
        hQuery: *mut core::ffi::c_void  // PDH_HQUERY
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("pdh.dll")]
public static extern bool PdhIsRealTimeQuery(IntPtr hQuery);
"@
$api = Add-Type -MemberDefinition $sig -Name 'pdh_PdhIsRealTimeQuery' -Namespace Win32 -PassThru
# $api::PdhIsRealTimeQuery(hQuery)

#uselib "pdh.dll"
#func global PdhIsRealTimeQuery "PdhIsRealTimeQuery" sptr
; PdhIsRealTimeQuery hQuery   ; 戻り値は stat
; hQuery : PDH_HQUERY -> "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。

#uselib "pdh.dll"
#cfunc global PdhIsRealTimeQuery "PdhIsRealTimeQuery" sptr
; res = PdhIsRealTimeQuery(hQuery)
; hQuery : PDH_HQUERY -> "sptr"

; BOOL PdhIsRealTimeQuery(PDH_HQUERY hQuery)
#uselib "pdh.dll"
#cfunc global PdhIsRealTimeQuery "PdhIsRealTimeQuery" intptr
; res = PdhIsRealTimeQuery(hQuery)
; hQuery : PDH_HQUERY -> "intptr"

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	pdh = windows.NewLazySystemDLL("pdh.dll")
	procPdhIsRealTimeQuery = pdh.NewProc("PdhIsRealTimeQuery")
)

// hQuery (PDH_HQUERY)
r1, _, err := procPdhIsRealTimeQuery.Call(
	uintptr(hQuery),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function PdhIsRealTimeQuery(
  hQuery: THandle   // PDH_HQUERY
): BOOL; stdcall;
  external 'pdh.dll' name 'PdhIsRealTimeQuery';

result := DllCall("pdh\PdhIsRealTimeQuery"
    , "Ptr", hQuery   ; PDH_HQUERY
    , "Int")   ; return: BOOL

●PdhIsRealTimeQuery(hQuery) = DLL("pdh.dll", "bool PdhIsRealTimeQuery(void*)")
# 呼び出し: PdhIsRealTimeQuery(hQuery)
# hQuery : PDH_HQUERY -> "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)。