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GetProcessWorkingSetSize

関数

プロセスの最小および最大ワーキングセットサイズを取得する。

DLLKERNEL32.dll呼出規約winapiSetLastErrorあり対応OSWindows XP 以降

シグネチャ

// KERNEL32.dll
#include <windows.h>

BOOL GetProcessWorkingSetSize(
    HANDLE hProcess,
    UINT_PTR* lpMinimumWorkingSetSize,
    UINT_PTR* lpMaximumWorkingSetSize
);

パラメーター

名前	型	方向
hProcess	HANDLE	in
lpMinimumWorkingSetSize	UINT_PTR*	out
lpMaximumWorkingSetSize	UINT_PTR*	out

戻り値の型: BOOL

各言語での呼び出し定義

// KERNEL32.dll
#include <windows.h>

BOOL GetProcessWorkingSetSize(
    HANDLE hProcess,
    UINT_PTR* lpMinimumWorkingSetSize,
    UINT_PTR* lpMaximumWorkingSetSize
);

[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("KERNEL32.dll", SetLastError = true, ExactSpelling = true)]
static extern bool GetProcessWorkingSetSize(
    IntPtr hProcess,   // HANDLE
    out UIntPtr lpMinimumWorkingSetSize,   // UINT_PTR* out
    out UIntPtr lpMaximumWorkingSetSize   // UINT_PTR* out
);

<DllImport("KERNEL32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function GetProcessWorkingSetSize(
    hProcess As IntPtr,   ' HANDLE
    <Out> ByRef lpMinimumWorkingSetSize As UIntPtr,   ' UINT_PTR* out
    <Out> ByRef lpMaximumWorkingSetSize As UIntPtr   ' UINT_PTR* out
) As Boolean
End Function

' hProcess : HANDLE
' lpMinimumWorkingSetSize : UINT_PTR* out
' lpMaximumWorkingSetSize : UINT_PTR* out
Declare PtrSafe Function GetProcessWorkingSetSize Lib "kernel32" ( _
    ByVal hProcess As LongPtr, _
    ByRef lpMinimumWorkingSetSize As LongPtr, _
    ByRef lpMaximumWorkingSetSize 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

GetProcessWorkingSetSize = ctypes.windll.kernel32.GetProcessWorkingSetSize
GetProcessWorkingSetSize.restype = wintypes.BOOL
GetProcessWorkingSetSize.argtypes = [
    wintypes.HANDLE,  # hProcess : HANDLE
    ctypes.POINTER(ctypes.c_size_t),  # lpMinimumWorkingSetSize : UINT_PTR* out
    ctypes.POINTER(ctypes.c_size_t),  # lpMaximumWorkingSetSize : UINT_PTR* out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
GetProcessWorkingSetSize = Fiddle::Function.new(
  lib['GetProcessWorkingSetSize'],
  [
    Fiddle::TYPE_VOIDP,  # hProcess : HANDLE
    Fiddle::TYPE_VOIDP,  # lpMinimumWorkingSetSize : UINT_PTR* out
    Fiddle::TYPE_VOIDP,  # lpMaximumWorkingSetSize : UINT_PTR* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "kernel32")]
extern "system" {
    fn GetProcessWorkingSetSize(
        hProcess: *mut core::ffi::c_void,  // HANDLE
        lpMinimumWorkingSetSize: *mut usize,  // UINT_PTR* out
        lpMaximumWorkingSetSize: *mut usize  // UINT_PTR* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("KERNEL32.dll", SetLastError = true)]
public static extern bool GetProcessWorkingSetSize(IntPtr hProcess, out UIntPtr lpMinimumWorkingSetSize, out UIntPtr lpMaximumWorkingSetSize);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_GetProcessWorkingSetSize' -Namespace Win32 -PassThru
# $api::GetProcessWorkingSetSize(hProcess, lpMinimumWorkingSetSize, lpMaximumWorkingSetSize)

#uselib "KERNEL32.dll"
#func global GetProcessWorkingSetSize "GetProcessWorkingSetSize" sptr, sptr, sptr
; GetProcessWorkingSetSize hProcess, varptr(lpMinimumWorkingSetSize), varptr(lpMaximumWorkingSetSize)   ; 戻り値は stat
; hProcess : HANDLE -> "sptr"
; lpMinimumWorkingSetSize : UINT_PTR* out -> "sptr"
; lpMaximumWorkingSetSize : UINT_PTR* 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 "KERNEL32.dll"
#cfunc global GetProcessWorkingSetSize "GetProcessWorkingSetSize" sptr, var, var
; res = GetProcessWorkingSetSize(hProcess, lpMinimumWorkingSetSize, lpMaximumWorkingSetSize)
; hProcess : HANDLE -> "sptr"
; lpMinimumWorkingSetSize : UINT_PTR* out -> "var"
; lpMaximumWorkingSetSize : UINT_PTR* 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 "KERNEL32.dll"
#cfunc global GetProcessWorkingSetSize "GetProcessWorkingSetSize" sptr, sptr, sptr
; res = GetProcessWorkingSetSize(hProcess, varptr(lpMinimumWorkingSetSize), varptr(lpMaximumWorkingSetSize))
; hProcess : HANDLE -> "sptr"
; lpMinimumWorkingSetSize : UINT_PTR* out -> "sptr"
; lpMaximumWorkingSetSize : UINT_PTR* 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:

; BOOL GetProcessWorkingSetSize(HANDLE hProcess, UINT_PTR* lpMinimumWorkingSetSize, UINT_PTR* lpMaximumWorkingSetSize)
#uselib "KERNEL32.dll"
#cfunc global GetProcessWorkingSetSize "GetProcessWorkingSetSize" intptr, var, var
; res = GetProcessWorkingSetSize(hProcess, lpMinimumWorkingSetSize, lpMaximumWorkingSetSize)
; hProcess : HANDLE -> "intptr"
; lpMinimumWorkingSetSize : UINT_PTR* out -> "var"
; lpMaximumWorkingSetSize : UINT_PTR* 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。; BOOL GetProcessWorkingSetSize(HANDLE hProcess, UINT_PTR* lpMinimumWorkingSetSize, UINT_PTR* lpMaximumWorkingSetSize)
#uselib "KERNEL32.dll"
#cfunc global GetProcessWorkingSetSize "GetProcessWorkingSetSize" intptr, intptr, intptr
; res = GetProcessWorkingSetSize(hProcess, varptr(lpMinimumWorkingSetSize), varptr(lpMaximumWorkingSetSize))
; hProcess : HANDLE -> "intptr"
; lpMinimumWorkingSetSize : UINT_PTR* out -> "intptr"
; lpMaximumWorkingSetSize : UINT_PTR* 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 (
	kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
	procGetProcessWorkingSetSize = kernel32.NewProc("GetProcessWorkingSetSize")
)

// hProcess (HANDLE), lpMinimumWorkingSetSize (UINT_PTR* out), lpMaximumWorkingSetSize (UINT_PTR* out)
r1, _, err := procGetProcessWorkingSetSize.Call(
	uintptr(hProcess),
	uintptr(lpMinimumWorkingSetSize),
	uintptr(lpMaximumWorkingSetSize),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function GetProcessWorkingSetSize(
  hProcess: THandle;   // HANDLE
  lpMinimumWorkingSetSize: Pointer;   // UINT_PTR* out
  lpMaximumWorkingSetSize: Pointer   // UINT_PTR* out
): BOOL; stdcall;
  external 'KERNEL32.dll' name 'GetProcessWorkingSetSize';

result := DllCall("KERNEL32\GetProcessWorkingSetSize"
    , "Ptr", hProcess   ; HANDLE
    , "Ptr", lpMinimumWorkingSetSize   ; UINT_PTR* out
    , "Ptr", lpMaximumWorkingSetSize   ; UINT_PTR* out
    , "Int")   ; return: BOOL

●GetProcessWorkingSetSize(hProcess, lpMinimumWorkingSetSize, lpMaximumWorkingSetSize) = DLL("KERNEL32.dll", "bool GetProcessWorkingSetSize(void*, void*, void*)")
# 呼び出し: GetProcessWorkingSetSize(hProcess, lpMinimumWorkingSetSize, lpMaximumWorkingSetSize)
# hProcess : HANDLE -> "void*"
# lpMinimumWorkingSetSize : UINT_PTR* out -> "void*"
# lpMaximumWorkingSetSize : UINT_PTR* 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)。