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PdhCollectQueryDataEx

関数
指定間隔で非同期にカウンターデータを収集する。
DLLpdh.dll呼出規約winapi対応OSWindows XP 以降

シグネチャ

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

DWORD PdhCollectQueryDataEx(
    PDH_HQUERY hQuery,
    DWORD dwIntervalTime,
    HANDLE hNewDataEvent
);

パラメーター

名前方向
hQueryPDH_HQUERYin
dwIntervalTimeDWORDin
hNewDataEventHANDLEin

戻り値の型: DWORD

各言語での呼び出し定義

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

DWORD PdhCollectQueryDataEx(
    PDH_HQUERY hQuery,
    DWORD dwIntervalTime,
    HANDLE hNewDataEvent
);
[DllImport("pdh.dll", ExactSpelling = true)]
static extern uint PdhCollectQueryDataEx(
    IntPtr hQuery,   // PDH_HQUERY
    uint dwIntervalTime,   // DWORD
    IntPtr hNewDataEvent   // HANDLE
);
<DllImport("pdh.dll", ExactSpelling:=True)>
Public Shared Function PdhCollectQueryDataEx(
    hQuery As IntPtr,   ' PDH_HQUERY
    dwIntervalTime As UInteger,   ' DWORD
    hNewDataEvent As IntPtr   ' HANDLE
) As UInteger
End Function
' hQuery : PDH_HQUERY
' dwIntervalTime : DWORD
' hNewDataEvent : HANDLE
Declare PtrSafe Function PdhCollectQueryDataEx Lib "pdh" ( _
    ByVal hQuery As LongPtr, _
    ByVal dwIntervalTime As Long, _
    ByVal hNewDataEvent 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

PdhCollectQueryDataEx = ctypes.windll.pdh.PdhCollectQueryDataEx
PdhCollectQueryDataEx.restype = wintypes.DWORD
PdhCollectQueryDataEx.argtypes = [
    wintypes.HANDLE,  # hQuery : PDH_HQUERY
    wintypes.DWORD,  # dwIntervalTime : DWORD
    wintypes.HANDLE,  # hNewDataEvent : HANDLE
]
require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('pdh.dll')
PdhCollectQueryDataEx = Fiddle::Function.new(
  lib['PdhCollectQueryDataEx'],
  [
    Fiddle::TYPE_VOIDP,  # hQuery : PDH_HQUERY
    -Fiddle::TYPE_INT,  # dwIntervalTime : DWORD
    Fiddle::TYPE_VOIDP,  # hNewDataEvent : HANDLE
  ],
  -Fiddle::TYPE_INT)
#[link(name = "pdh")]
extern "system" {
    fn PdhCollectQueryDataEx(
        hQuery: *mut core::ffi::c_void,  // PDH_HQUERY
        dwIntervalTime: u32,  // DWORD
        hNewDataEvent: *mut core::ffi::c_void  // HANDLE
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.
$sig = @"
[DllImport("pdh.dll")]
public static extern uint PdhCollectQueryDataEx(IntPtr hQuery, uint dwIntervalTime, IntPtr hNewDataEvent);
"@
$api = Add-Type -MemberDefinition $sig -Name 'pdh_PdhCollectQueryDataEx' -Namespace Win32 -PassThru
# $api::PdhCollectQueryDataEx(hQuery, dwIntervalTime, hNewDataEvent)
#uselib "pdh.dll"
#func global PdhCollectQueryDataEx "PdhCollectQueryDataEx" sptr, sptr, sptr
; PdhCollectQueryDataEx hQuery, dwIntervalTime, hNewDataEvent   ; 戻り値は stat
; hQuery : PDH_HQUERY -> "sptr"
; dwIntervalTime : DWORD -> "sptr"
; hNewDataEvent : HANDLE -> "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 PdhCollectQueryDataEx "PdhCollectQueryDataEx" sptr, int, sptr
; res = PdhCollectQueryDataEx(hQuery, dwIntervalTime, hNewDataEvent)
; hQuery : PDH_HQUERY -> "sptr"
; dwIntervalTime : DWORD -> "int"
; hNewDataEvent : HANDLE -> "sptr"
; DWORD PdhCollectQueryDataEx(PDH_HQUERY hQuery, DWORD dwIntervalTime, HANDLE hNewDataEvent)
#uselib "pdh.dll"
#cfunc global PdhCollectQueryDataEx "PdhCollectQueryDataEx" intptr, int, intptr
; res = PdhCollectQueryDataEx(hQuery, dwIntervalTime, hNewDataEvent)
; hQuery : PDH_HQUERY -> "intptr"
; dwIntervalTime : DWORD -> "int"
; hNewDataEvent : HANDLE -> "intptr"
import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	pdh = windows.NewLazySystemDLL("pdh.dll")
	procPdhCollectQueryDataEx = pdh.NewProc("PdhCollectQueryDataEx")
)

// hQuery (PDH_HQUERY), dwIntervalTime (DWORD), hNewDataEvent (HANDLE)
r1, _, err := procPdhCollectQueryDataEx.Call(
	uintptr(hQuery),
	uintptr(dwIntervalTime),
	uintptr(hNewDataEvent),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD
function PdhCollectQueryDataEx(
  hQuery: THandle;   // PDH_HQUERY
  dwIntervalTime: DWORD;   // DWORD
  hNewDataEvent: THandle   // HANDLE
): DWORD; stdcall;
  external 'pdh.dll' name 'PdhCollectQueryDataEx';
result := DllCall("pdh\PdhCollectQueryDataEx"
    , "Ptr", hQuery   ; PDH_HQUERY
    , "UInt", dwIntervalTime   ; DWORD
    , "Ptr", hNewDataEvent   ; HANDLE
    , "UInt")   ; return: DWORD
●PdhCollectQueryDataEx(hQuery, dwIntervalTime, hNewDataEvent) = DLL("pdh.dll", "dword PdhCollectQueryDataEx(void*, dword, void*)")
# 呼び出し: PdhCollectQueryDataEx(hQuery, dwIntervalTime, hNewDataEvent)
# hQuery : PDH_HQUERY -> "void*"
# dwIntervalTime : DWORD -> "dword"
# hNewDataEvent : HANDLE -> "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)。