ホーム › System.Performance › PdhGetFormattedCounterArrayW

PdhGetFormattedCounterArrayW

関数

ワイルドカードカウンターの整形済み値配列を取得する。

DLLpdh.dll文字セットUnicode (-W)呼出規約winapi対応OSWindows XP 以降

シグネチャ

// pdh.dll  (Unicode / -W)
#include <windows.h>

DWORD PdhGetFormattedCounterArrayW(
    PDH_HCOUNTER hCounter,
    PDH_FMT dwFormat,
    DWORD* lpdwBufferSize,
    DWORD* lpdwItemCount,
    PDH_FMT_COUNTERVALUE_ITEM_W* ItemBuffer   // optional
);

パラメーター

名前	型	方向
hCounter	PDH_HCOUNTER	in
dwFormat	PDH_FMT	in
lpdwBufferSize	DWORD*	inout
lpdwItemCount	DWORD*	out
ItemBuffer	PDH_FMT_COUNTERVALUE_ITEM_W*	outoptional

戻り値の型: DWORD

各言語での呼び出し定義

// pdh.dll  (Unicode / -W)
#include <windows.h>

DWORD PdhGetFormattedCounterArrayW(
    PDH_HCOUNTER hCounter,
    PDH_FMT dwFormat,
    DWORD* lpdwBufferSize,
    DWORD* lpdwItemCount,
    PDH_FMT_COUNTERVALUE_ITEM_W* ItemBuffer   // optional
);

[DllImport("pdh.dll", CharSet = CharSet.Unicode, ExactSpelling = true)]
static extern uint PdhGetFormattedCounterArrayW(
    IntPtr hCounter,   // PDH_HCOUNTER
    uint dwFormat,   // PDH_FMT
    ref uint lpdwBufferSize,   // DWORD* in/out
    out uint lpdwItemCount,   // DWORD* out
    IntPtr ItemBuffer   // PDH_FMT_COUNTERVALUE_ITEM_W* optional, out
);

<DllImport("pdh.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function PdhGetFormattedCounterArrayW(
    hCounter As IntPtr,   ' PDH_HCOUNTER
    dwFormat As UInteger,   ' PDH_FMT
    ByRef lpdwBufferSize As UInteger,   ' DWORD* in/out
    <Out> ByRef lpdwItemCount As UInteger,   ' DWORD* out
    ItemBuffer As IntPtr   ' PDH_FMT_COUNTERVALUE_ITEM_W* optional, out
) As UInteger
End Function

' hCounter : PDH_HCOUNTER
' dwFormat : PDH_FMT
' lpdwBufferSize : DWORD* in/out
' lpdwItemCount : DWORD* out
' ItemBuffer : PDH_FMT_COUNTERVALUE_ITEM_W* optional, out
Declare PtrSafe Function PdhGetFormattedCounterArrayW Lib "pdh" ( _
    ByVal hCounter As LongPtr, _
    ByVal dwFormat As Long, _
    ByRef lpdwBufferSize As Long, _
    ByRef lpdwItemCount As Long, _
    ByVal ItemBuffer As LongPtr) As Long
' Unicode(W): 文字列は ByVal As LongPtr とし StrPtr(unicodeStr) を渡す
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

PdhGetFormattedCounterArrayW = ctypes.windll.pdh.PdhGetFormattedCounterArrayW
PdhGetFormattedCounterArrayW.restype = wintypes.DWORD
PdhGetFormattedCounterArrayW.argtypes = [
    wintypes.HANDLE,  # hCounter : PDH_HCOUNTER
    wintypes.DWORD,  # dwFormat : PDH_FMT
    ctypes.POINTER(wintypes.DWORD),  # lpdwBufferSize : DWORD* in/out
    ctypes.POINTER(wintypes.DWORD),  # lpdwItemCount : DWORD* out
    ctypes.c_void_p,  # ItemBuffer : PDH_FMT_COUNTERVALUE_ITEM_W* optional, out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('pdh.dll')
PdhGetFormattedCounterArrayW = Fiddle::Function.new(
  lib['PdhGetFormattedCounterArrayW'],
  [
    Fiddle::TYPE_VOIDP,  # hCounter : PDH_HCOUNTER
    -Fiddle::TYPE_INT,  # dwFormat : PDH_FMT
    Fiddle::TYPE_VOIDP,  # lpdwBufferSize : DWORD* in/out
    Fiddle::TYPE_VOIDP,  # lpdwItemCount : DWORD* out
    Fiddle::TYPE_VOIDP,  # ItemBuffer : PDH_FMT_COUNTERVALUE_ITEM_W* optional, out
  ],
  -Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "pdh")]
extern "system" {
    fn PdhGetFormattedCounterArrayW(
        hCounter: *mut core::ffi::c_void,  // PDH_HCOUNTER
        dwFormat: u32,  // PDH_FMT
        lpdwBufferSize: *mut u32,  // DWORD* in/out
        lpdwItemCount: *mut u32,  // DWORD* out
        ItemBuffer: *mut PDH_FMT_COUNTERVALUE_ITEM_W  // PDH_FMT_COUNTERVALUE_ITEM_W* optional, out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("pdh.dll", CharSet = CharSet.Unicode)]
public static extern uint PdhGetFormattedCounterArrayW(IntPtr hCounter, uint dwFormat, ref uint lpdwBufferSize, out uint lpdwItemCount, IntPtr ItemBuffer);
"@
$api = Add-Type -MemberDefinition $sig -Name 'pdh_PdhGetFormattedCounterArrayW' -Namespace Win32 -PassThru
# $api::PdhGetFormattedCounterArrayW(hCounter, dwFormat, lpdwBufferSize, lpdwItemCount, ItemBuffer)

#uselib "pdh.dll"
#func global PdhGetFormattedCounterArrayW "PdhGetFormattedCounterArrayW" wptr, wptr, wptr, wptr, wptr
; PdhGetFormattedCounterArrayW hCounter, dwFormat, varptr(lpdwBufferSize), varptr(lpdwItemCount), varptr(ItemBuffer)   ; 戻り値は stat
; hCounter : PDH_HCOUNTER -> "wptr"
; dwFormat : PDH_FMT -> "wptr"
; lpdwBufferSize : DWORD* in/out -> "wptr"
; lpdwItemCount : DWORD* out -> "wptr"
; ItemBuffer : PDH_FMT_COUNTERVALUE_ITEM_W* optional, out -> "wptr"
; ※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 "pdh.dll"
#cfunc global PdhGetFormattedCounterArrayW "PdhGetFormattedCounterArrayW" sptr, int, var, var, var
; res = PdhGetFormattedCounterArrayW(hCounter, dwFormat, lpdwBufferSize, lpdwItemCount, ItemBuffer)
; hCounter : PDH_HCOUNTER -> "sptr"
; dwFormat : PDH_FMT -> "int"
; lpdwBufferSize : DWORD* in/out -> "var"
; lpdwItemCount : DWORD* out -> "var"
; ItemBuffer : PDH_FMT_COUNTERVALUE_ITEM_W* optional, 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 "pdh.dll"
#cfunc global PdhGetFormattedCounterArrayW "PdhGetFormattedCounterArrayW" sptr, int, sptr, sptr, sptr
; res = PdhGetFormattedCounterArrayW(hCounter, dwFormat, varptr(lpdwBufferSize), varptr(lpdwItemCount), varptr(ItemBuffer))
; hCounter : PDH_HCOUNTER -> "sptr"
; dwFormat : PDH_FMT -> "int"
; lpdwBufferSize : DWORD* in/out -> "sptr"
; lpdwItemCount : DWORD* out -> "sptr"
; ItemBuffer : PDH_FMT_COUNTERVALUE_ITEM_W* optional, 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:

; DWORD PdhGetFormattedCounterArrayW(PDH_HCOUNTER hCounter, PDH_FMT dwFormat, DWORD* lpdwBufferSize, DWORD* lpdwItemCount, PDH_FMT_COUNTERVALUE_ITEM_W* ItemBuffer)
#uselib "pdh.dll"
#cfunc global PdhGetFormattedCounterArrayW "PdhGetFormattedCounterArrayW" intptr, int, var, var, var
; res = PdhGetFormattedCounterArrayW(hCounter, dwFormat, lpdwBufferSize, lpdwItemCount, ItemBuffer)
; hCounter : PDH_HCOUNTER -> "intptr"
; dwFormat : PDH_FMT -> "int"
; lpdwBufferSize : DWORD* in/out -> "var"
; lpdwItemCount : DWORD* out -> "var"
; ItemBuffer : PDH_FMT_COUNTERVALUE_ITEM_W* optional, 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。; DWORD PdhGetFormattedCounterArrayW(PDH_HCOUNTER hCounter, PDH_FMT dwFormat, DWORD* lpdwBufferSize, DWORD* lpdwItemCount, PDH_FMT_COUNTERVALUE_ITEM_W* ItemBuffer)
#uselib "pdh.dll"
#cfunc global PdhGetFormattedCounterArrayW "PdhGetFormattedCounterArrayW" intptr, int, intptr, intptr, intptr
; res = PdhGetFormattedCounterArrayW(hCounter, dwFormat, varptr(lpdwBufferSize), varptr(lpdwItemCount), varptr(ItemBuffer))
; hCounter : PDH_HCOUNTER -> "intptr"
; dwFormat : PDH_FMT -> "int"
; lpdwBufferSize : DWORD* in/out -> "intptr"
; lpdwItemCount : DWORD* out -> "intptr"
; ItemBuffer : PDH_FMT_COUNTERVALUE_ITEM_W* optional, 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 (
	pdh = windows.NewLazySystemDLL("pdh.dll")
	procPdhGetFormattedCounterArrayW = pdh.NewProc("PdhGetFormattedCounterArrayW")
)

// hCounter (PDH_HCOUNTER), dwFormat (PDH_FMT), lpdwBufferSize (DWORD* in/out), lpdwItemCount (DWORD* out), ItemBuffer (PDH_FMT_COUNTERVALUE_ITEM_W* optional, out)
r1, _, err := procPdhGetFormattedCounterArrayW.Call(
	uintptr(hCounter),
	uintptr(dwFormat),
	uintptr(lpdwBufferSize),
	uintptr(lpdwItemCount),
	uintptr(ItemBuffer),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function PdhGetFormattedCounterArrayW(
  hCounter: THandle;   // PDH_HCOUNTER
  dwFormat: DWORD;   // PDH_FMT
  lpdwBufferSize: Pointer;   // DWORD* in/out
  lpdwItemCount: Pointer;   // DWORD* out
  ItemBuffer: Pointer   // PDH_FMT_COUNTERVALUE_ITEM_W* optional, out
): DWORD; stdcall;
  external 'pdh.dll' name 'PdhGetFormattedCounterArrayW';

result := DllCall("pdh\PdhGetFormattedCounterArrayW"
    , "Ptr", hCounter   ; PDH_HCOUNTER
    , "UInt", dwFormat   ; PDH_FMT
    , "Ptr", lpdwBufferSize   ; DWORD* in/out
    , "Ptr", lpdwItemCount   ; DWORD* out
    , "Ptr", ItemBuffer   ; PDH_FMT_COUNTERVALUE_ITEM_W* optional, out
    , "UInt")   ; return: DWORD

●PdhGetFormattedCounterArrayW(hCounter, dwFormat, lpdwBufferSize, lpdwItemCount, ItemBuffer) = DLL("pdh.dll", "dword PdhGetFormattedCounterArrayW(void*, dword, void*, void*, void*)")
# 呼び出し: PdhGetFormattedCounterArrayW(hCounter, dwFormat, lpdwBufferSize, lpdwItemCount, ItemBuffer)
# hCounter : PDH_HCOUNTER -> "void*"
# dwFormat : PDH_FMT -> "dword"
# lpdwBufferSize : DWORD* in/out -> "void*"
# lpdwItemCount : DWORD* out -> "void*"
# ItemBuffer : PDH_FMT_COUNTERVALUE_ITEM_W* optional, 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)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。