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PdhParseInstanceNameA

関数

インスタンス文字列を名前と親名に分解する(ANSI版)。

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

シグネチャ

// pdh.dll  (ANSI / -A)
#include <windows.h>

DWORD PdhParseInstanceNameA(
    LPCSTR szInstanceString,
    LPSTR szInstanceName,   // optional
    DWORD* pcchInstanceNameLength,
    LPSTR szParentName,   // optional
    DWORD* pcchParentNameLength,
    DWORD* lpIndex
);

パラメーター

名前	型	方向
szInstanceString	LPCSTR	in
szInstanceName	LPSTR	outoptional
pcchInstanceNameLength	DWORD*	inout
szParentName	LPSTR	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  (ANSI / -A)
#include <windows.h>

DWORD PdhParseInstanceNameA(
    LPCSTR szInstanceString,
    LPSTR szInstanceName,   // optional
    DWORD* pcchInstanceNameLength,
    LPSTR szParentName,   // optional
    DWORD* pcchParentNameLength,
    DWORD* lpIndex
);

[DllImport("pdh.dll", CharSet = CharSet.Ansi, ExactSpelling = true)]
static extern uint PdhParseInstanceNameA(
    [MarshalAs(UnmanagedType.LPStr)] string szInstanceString,   // LPCSTR
    [MarshalAs(UnmanagedType.LPStr)] System.Text.StringBuilder szInstanceName,   // LPSTR optional, out
    ref uint pcchInstanceNameLength,   // DWORD* in/out
    [MarshalAs(UnmanagedType.LPStr)] System.Text.StringBuilder szParentName,   // LPSTR optional, out
    ref uint pcchParentNameLength,   // DWORD* in/out
    out uint lpIndex   // DWORD* out
);

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

' szInstanceString : LPCSTR
' szInstanceName : LPSTR optional, out
' pcchInstanceNameLength : DWORD* in/out
' szParentName : LPSTR optional, out
' pcchParentNameLength : DWORD* in/out
' lpIndex : DWORD* out
Declare PtrSafe Function PdhParseInstanceNameA Lib "pdh" ( _
    ByVal szInstanceString As String, _
    ByVal szInstanceName As String, _
    ByRef pcchInstanceNameLength As Long, _
    ByVal szParentName As String, _
    ByRef pcchParentNameLength As Long, _
    ByRef lpIndex As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

PdhParseInstanceNameA = ctypes.windll.pdh.PdhParseInstanceNameA
PdhParseInstanceNameA.restype = wintypes.DWORD
PdhParseInstanceNameA.argtypes = [
    wintypes.LPCSTR,  # szInstanceString : LPCSTR
    wintypes.LPSTR,  # szInstanceName : LPSTR optional, out
    ctypes.POINTER(wintypes.DWORD),  # pcchInstanceNameLength : DWORD* in/out
    wintypes.LPSTR,  # szParentName : LPSTR 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')
PdhParseInstanceNameA = Fiddle::Function.new(
  lib['PdhParseInstanceNameA'],
  [
    Fiddle::TYPE_VOIDP,  # szInstanceString : LPCSTR
    Fiddle::TYPE_VOIDP,  # szInstanceName : LPSTR optional, out
    Fiddle::TYPE_VOIDP,  # pcchInstanceNameLength : DWORD* in/out
    Fiddle::TYPE_VOIDP,  # szParentName : LPSTR optional, out
    Fiddle::TYPE_VOIDP,  # pcchParentNameLength : DWORD* in/out
    Fiddle::TYPE_VOIDP,  # lpIndex : DWORD* out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "pdh")]
extern "system" {
    fn PdhParseInstanceNameA(
        szInstanceString: *const u8,  // LPCSTR
        szInstanceName: *mut u8,  // LPSTR optional, out
        pcchInstanceNameLength: *mut u32,  // DWORD* in/out
        szParentName: *mut u8,  // LPSTR 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.Ansi)]
public static extern uint PdhParseInstanceNameA([MarshalAs(UnmanagedType.LPStr)] string szInstanceString, [MarshalAs(UnmanagedType.LPStr)] System.Text.StringBuilder szInstanceName, ref uint pcchInstanceNameLength, [MarshalAs(UnmanagedType.LPStr)] System.Text.StringBuilder szParentName, ref uint pcchParentNameLength, out uint lpIndex);
"@
$api = Add-Type -MemberDefinition $sig -Name 'pdh_PdhParseInstanceNameA' -Namespace Win32 -PassThru
# $api::PdhParseInstanceNameA(szInstanceString, szInstanceName, pcchInstanceNameLength, szParentName, pcchParentNameLength, lpIndex)

#uselib "pdh.dll"
#func global PdhParseInstanceNameA "PdhParseInstanceNameA" sptr, sptr, sptr, sptr, sptr, sptr
; PdhParseInstanceNameA szInstanceString, varptr(szInstanceName), varptr(pcchInstanceNameLength), varptr(szParentName), varptr(pcchParentNameLength), varptr(lpIndex)   ; 戻り値は stat
; szInstanceString : LPCSTR -> "sptr"
; szInstanceName : LPSTR optional, out -> "sptr"
; pcchInstanceNameLength : DWORD* in/out -> "sptr"
; szParentName : LPSTR optional, out -> "sptr"
; pcchParentNameLength : DWORD* in/out -> "sptr"
; lpIndex : DWORD* 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 "pdh.dll"
#cfunc global PdhParseInstanceNameA "PdhParseInstanceNameA" str, var, var, var, var, var
; res = PdhParseInstanceNameA(szInstanceString, szInstanceName, pcchInstanceNameLength, szParentName, pcchParentNameLength, lpIndex)
; szInstanceString : LPCSTR -> "str"
; szInstanceName : LPSTR optional, out -> "var"
; pcchInstanceNameLength : DWORD* in/out -> "var"
; szParentName : LPSTR 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 PdhParseInstanceNameA "PdhParseInstanceNameA" str, sptr, sptr, sptr, sptr, sptr
; res = PdhParseInstanceNameA(szInstanceString, varptr(szInstanceName), varptr(pcchInstanceNameLength), varptr(szParentName), varptr(pcchParentNameLength), varptr(lpIndex))
; szInstanceString : LPCSTR -> "str"
; szInstanceName : LPSTR optional, out -> "sptr"
; pcchInstanceNameLength : DWORD* in/out -> "sptr"
; szParentName : LPSTR 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 PdhParseInstanceNameA(LPCSTR szInstanceString, LPSTR szInstanceName, DWORD* pcchInstanceNameLength, LPSTR szParentName, DWORD* pcchParentNameLength, DWORD* lpIndex)
#uselib "pdh.dll"
#cfunc global PdhParseInstanceNameA "PdhParseInstanceNameA" str, var, var, var, var, var
; res = PdhParseInstanceNameA(szInstanceString, szInstanceName, pcchInstanceNameLength, szParentName, pcchParentNameLength, lpIndex)
; szInstanceString : LPCSTR -> "str"
; szInstanceName : LPSTR optional, out -> "var"
; pcchInstanceNameLength : DWORD* in/out -> "var"
; szParentName : LPSTR 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 PdhParseInstanceNameA(LPCSTR szInstanceString, LPSTR szInstanceName, DWORD* pcchInstanceNameLength, LPSTR szParentName, DWORD* pcchParentNameLength, DWORD* lpIndex)
#uselib "pdh.dll"
#cfunc global PdhParseInstanceNameA "PdhParseInstanceNameA" str, intptr, intptr, intptr, intptr, intptr
; res = PdhParseInstanceNameA(szInstanceString, varptr(szInstanceName), varptr(pcchInstanceNameLength), varptr(szParentName), varptr(pcchParentNameLength), varptr(lpIndex))
; szInstanceString : LPCSTR -> "str"
; szInstanceName : LPSTR optional, out -> "intptr"
; pcchInstanceNameLength : DWORD* in/out -> "intptr"
; szParentName : LPSTR 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")
	procPdhParseInstanceNameA = pdh.NewProc("PdhParseInstanceNameA")
)

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

function PdhParseInstanceNameA(
  szInstanceString: PAnsiChar;   // LPCSTR
  szInstanceName: PAnsiChar;   // LPSTR optional, out
  pcchInstanceNameLength: Pointer;   // DWORD* in/out
  szParentName: PAnsiChar;   // LPSTR optional, out
  pcchParentNameLength: Pointer;   // DWORD* in/out
  lpIndex: Pointer   // DWORD* out
): DWORD; stdcall;
  external 'pdh.dll' name 'PdhParseInstanceNameA';

result := DllCall("pdh\PdhParseInstanceNameA"
    , "AStr", szInstanceString   ; LPCSTR
    , "Ptr", szInstanceName   ; LPSTR optional, out
    , "Ptr", pcchInstanceNameLength   ; DWORD* in/out
    , "Ptr", szParentName   ; LPSTR optional, out
    , "Ptr", pcchParentNameLength   ; DWORD* in/out
    , "Ptr", lpIndex   ; DWORD* out
    , "UInt")   ; return: DWORD

●PdhParseInstanceNameA(szInstanceString, szInstanceName, pcchInstanceNameLength, szParentName, pcchParentNameLength, lpIndex) = DLL("pdh.dll", "dword PdhParseInstanceNameA(char*, char*, void*, char*, void*, void*)")
# 呼び出し: PdhParseInstanceNameA(szInstanceString, szInstanceName, pcchInstanceNameLength, szParentName, pcchParentNameLength, lpIndex)
# szInstanceString : LPCSTR -> "char*"
# szInstanceName : LPSTR optional, out -> "char*"
# pcchInstanceNameLength : DWORD* in/out -> "void*"
# szParentName : LPSTR 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)。