ホーム › System.Performance › PdhParseInstanceNameW

PdhParseInstanceNameW

関数

インスタンス文字列をインスタンス名と親名に分解する。

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 PdhParseInstanceNameW(
    LPCWSTR szInstanceString,
    LPWSTR szInstanceName,   // optional
    DWORD* pcchInstanceNameLength,
    LPWSTR szParentName,   // optional
    DWORD* pcchParentNameLength,
    DWORD* lpIndex
);

パラメーター

名前	型	方向
szInstanceString	LPCWSTR	in
szInstanceName	LPWSTR	outoptional
pcchInstanceNameLength	DWORD*	inout
szParentName	LPWSTR	outoptional
pcchParentNameLength	DWORD*	inout
lpIndex	DWORD*	out

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 PdhParseInstanceNameW(
    LPCWSTR szInstanceString,
    LPWSTR szInstanceName,   // optional
    DWORD* pcchInstanceNameLength,
    LPWSTR szParentName,   // optional
    DWORD* pcchParentNameLength,
    DWORD* lpIndex
);

[DllImport("pdh.dll", CharSet = CharSet.Unicode, ExactSpelling = true)]
static extern uint PdhParseInstanceNameW(
    [MarshalAs(UnmanagedType.LPWStr)] string szInstanceString,   // LPCWSTR
    [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder szInstanceName,   // LPWSTR optional, out
    ref uint pcchInstanceNameLength,   // DWORD* in/out
    [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder szParentName,   // LPWSTR optional, out
    ref uint pcchParentNameLength,   // DWORD* in/out
    out uint lpIndex   // DWORD* out
);

<DllImport("pdh.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function PdhParseInstanceNameW(
    <MarshalAs(UnmanagedType.LPWStr)> szInstanceString As String,   ' LPCWSTR
    <MarshalAs(UnmanagedType.LPWStr)> szInstanceName As System.Text.StringBuilder,   ' LPWSTR optional, out
    ByRef pcchInstanceNameLength As UInteger,   ' DWORD* in/out
    <MarshalAs(UnmanagedType.LPWStr)> szParentName As System.Text.StringBuilder,   ' LPWSTR optional, out
    ByRef pcchParentNameLength As UInteger,   ' DWORD* in/out
    <Out> ByRef lpIndex As UInteger   ' DWORD* out
) As UInteger
End Function

' szInstanceString : LPCWSTR
' szInstanceName : LPWSTR optional, out
' pcchInstanceNameLength : DWORD* in/out
' szParentName : LPWSTR optional, out
' pcchParentNameLength : DWORD* in/out
' lpIndex : DWORD* out
Declare PtrSafe Function PdhParseInstanceNameW Lib "pdh" ( _
    ByVal szInstanceString As LongPtr, _
    ByVal szInstanceName As LongPtr, _
    ByRef pcchInstanceNameLength As Long, _
    ByVal szParentName As LongPtr, _
    ByRef pcchParentNameLength As Long, _
    ByRef lpIndex As Long) 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

PdhParseInstanceNameW = ctypes.windll.pdh.PdhParseInstanceNameW
PdhParseInstanceNameW.restype = wintypes.DWORD
PdhParseInstanceNameW.argtypes = [
    wintypes.LPCWSTR,  # szInstanceString : LPCWSTR
    wintypes.LPWSTR,  # szInstanceName : LPWSTR optional, out
    ctypes.POINTER(wintypes.DWORD),  # pcchInstanceNameLength : DWORD* in/out
    wintypes.LPWSTR,  # szParentName : LPWSTR optional, out
    ctypes.POINTER(wintypes.DWORD),  # pcchParentNameLength : DWORD* in/out
    ctypes.POINTER(wintypes.DWORD),  # lpIndex : DWORD* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('pdh.dll')
PdhParseInstanceNameW = Fiddle::Function.new(
  lib['PdhParseInstanceNameW'],
  [
    Fiddle::TYPE_VOIDP,  # szInstanceString : LPCWSTR
    Fiddle::TYPE_VOIDP,  # szInstanceName : LPWSTR optional, out
    Fiddle::TYPE_VOIDP,  # pcchInstanceNameLength : DWORD* in/out
    Fiddle::TYPE_VOIDP,  # szParentName : LPWSTR optional, out
    Fiddle::TYPE_VOIDP,  # pcchParentNameLength : DWORD* in/out
    Fiddle::TYPE_VOIDP,  # lpIndex : DWORD* out
  ],
  -Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "pdh")]
extern "system" {
    fn PdhParseInstanceNameW(
        szInstanceString: *const u16,  // LPCWSTR
        szInstanceName: *mut u16,  // LPWSTR optional, out
        pcchInstanceNameLength: *mut u32,  // DWORD* in/out
        szParentName: *mut u16,  // LPWSTR optional, out
        pcchParentNameLength: *mut u32,  // DWORD* in/out
        lpIndex: *mut u32  // DWORD* out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("pdh.dll", CharSet = CharSet.Unicode)]
public static extern uint PdhParseInstanceNameW([MarshalAs(UnmanagedType.LPWStr)] string szInstanceString, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder szInstanceName, ref uint pcchInstanceNameLength, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder szParentName, ref uint pcchParentNameLength, out uint lpIndex);
"@
$api = Add-Type -MemberDefinition $sig -Name 'pdh_PdhParseInstanceNameW' -Namespace Win32 -PassThru
# $api::PdhParseInstanceNameW(szInstanceString, szInstanceName, pcchInstanceNameLength, szParentName, pcchParentNameLength, lpIndex)

#uselib "pdh.dll"
#func global PdhParseInstanceNameW "PdhParseInstanceNameW" wptr, wptr, wptr, wptr, wptr, wptr
; PdhParseInstanceNameW szInstanceString, varptr(szInstanceName), varptr(pcchInstanceNameLength), varptr(szParentName), varptr(pcchParentNameLength), varptr(lpIndex)   ; 戻り値は stat
; szInstanceString : LPCWSTR -> "wptr"
; szInstanceName : LPWSTR optional, out -> "wptr"
; pcchInstanceNameLength : DWORD* in/out -> "wptr"
; szParentName : LPWSTR optional, out -> "wptr"
; pcchParentNameLength : DWORD* in/out -> "wptr"
; lpIndex : DWORD* 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 PdhParseInstanceNameW "PdhParseInstanceNameW" wstr, var, var, var, var, var
; res = PdhParseInstanceNameW(szInstanceString, szInstanceName, pcchInstanceNameLength, szParentName, pcchParentNameLength, lpIndex)
; szInstanceString : LPCWSTR -> "wstr"
; szInstanceName : LPWSTR optional, out -> "var"
; pcchInstanceNameLength : DWORD* in/out -> "var"
; szParentName : LPWSTR optional, out -> "var"
; pcchParentNameLength : DWORD* in/out -> "var"
; lpIndex : 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 "pdh.dll"
#cfunc global PdhParseInstanceNameW "PdhParseInstanceNameW" wstr, sptr, sptr, sptr, sptr, sptr
; res = PdhParseInstanceNameW(szInstanceString, varptr(szInstanceName), varptr(pcchInstanceNameLength), varptr(szParentName), varptr(pcchParentNameLength), varptr(lpIndex))
; szInstanceString : LPCWSTR -> "wstr"
; szInstanceName : LPWSTR optional, out -> "sptr"
; pcchInstanceNameLength : DWORD* in/out -> "sptr"
; szParentName : LPWSTR optional, out -> "sptr"
; pcchParentNameLength : DWORD* in/out -> "sptr"
; lpIndex : 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:

; DWORD PdhParseInstanceNameW(LPCWSTR szInstanceString, LPWSTR szInstanceName, DWORD* pcchInstanceNameLength, LPWSTR szParentName, DWORD* pcchParentNameLength, DWORD* lpIndex)
#uselib "pdh.dll"
#cfunc global PdhParseInstanceNameW "PdhParseInstanceNameW" wstr, var, var, var, var, var
; res = PdhParseInstanceNameW(szInstanceString, szInstanceName, pcchInstanceNameLength, szParentName, pcchParentNameLength, lpIndex)
; szInstanceString : LPCWSTR -> "wstr"
; szInstanceName : LPWSTR optional, out -> "var"
; pcchInstanceNameLength : DWORD* in/out -> "var"
; szParentName : LPWSTR optional, out -> "var"
; pcchParentNameLength : DWORD* in/out -> "var"
; lpIndex : 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。; DWORD PdhParseInstanceNameW(LPCWSTR szInstanceString, LPWSTR szInstanceName, DWORD* pcchInstanceNameLength, LPWSTR szParentName, DWORD* pcchParentNameLength, DWORD* lpIndex)
#uselib "pdh.dll"
#cfunc global PdhParseInstanceNameW "PdhParseInstanceNameW" wstr, intptr, intptr, intptr, intptr, intptr
; res = PdhParseInstanceNameW(szInstanceString, varptr(szInstanceName), varptr(pcchInstanceNameLength), varptr(szParentName), varptr(pcchParentNameLength), varptr(lpIndex))
; szInstanceString : LPCWSTR -> "wstr"
; szInstanceName : LPWSTR optional, out -> "intptr"
; pcchInstanceNameLength : DWORD* in/out -> "intptr"
; szParentName : LPWSTR optional, out -> "intptr"
; pcchParentNameLength : DWORD* in/out -> "intptr"
; lpIndex : 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 (
	pdh = windows.NewLazySystemDLL("pdh.dll")
	procPdhParseInstanceNameW = pdh.NewProc("PdhParseInstanceNameW")
)

// szInstanceString (LPCWSTR), szInstanceName (LPWSTR optional, out), pcchInstanceNameLength (DWORD* in/out), szParentName (LPWSTR optional, out), pcchParentNameLength (DWORD* in/out), lpIndex (DWORD* out)
r1, _, err := procPdhParseInstanceNameW.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(szInstanceString))),
	uintptr(szInstanceName),
	uintptr(pcchInstanceNameLength),
	uintptr(szParentName),
	uintptr(pcchParentNameLength),
	uintptr(lpIndex),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function PdhParseInstanceNameW(
  szInstanceString: PWideChar;   // LPCWSTR
  szInstanceName: PWideChar;   // LPWSTR optional, out
  pcchInstanceNameLength: Pointer;   // DWORD* in/out
  szParentName: PWideChar;   // LPWSTR optional, out
  pcchParentNameLength: Pointer;   // DWORD* in/out
  lpIndex: Pointer   // DWORD* out
): DWORD; stdcall;
  external 'pdh.dll' name 'PdhParseInstanceNameW';

result := DllCall("pdh\PdhParseInstanceNameW"
    , "WStr", szInstanceString   ; LPCWSTR
    , "Ptr", szInstanceName   ; LPWSTR optional, out
    , "Ptr", pcchInstanceNameLength   ; DWORD* in/out
    , "Ptr", szParentName   ; LPWSTR optional, out
    , "Ptr", pcchParentNameLength   ; DWORD* in/out
    , "Ptr", lpIndex   ; DWORD* out
    , "UInt")   ; return: DWORD

●PdhParseInstanceNameW(szInstanceString, szInstanceName, pcchInstanceNameLength, szParentName, pcchParentNameLength, lpIndex) = DLL("pdh.dll", "dword PdhParseInstanceNameW(char*, char*, void*, char*, void*, void*)")
# 呼び出し: PdhParseInstanceNameW(szInstanceString, szInstanceName, pcchInstanceNameLength, szParentName, pcchParentNameLength, lpIndex)
# szInstanceString : LPCWSTR -> "char*"
# szInstanceName : LPWSTR optional, out -> "char*"
# pcchInstanceNameLength : DWORD* in/out -> "void*"
# szParentName : LPWSTR optional, out -> "char*"
# pcchParentNameLength : DWORD* in/out -> "void*"
# lpIndex : 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)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。