ホーム › System.ProcessStatus › K32EmptyWorkingSet

K32EmptyWorkingSet

関数

指定プロセスのワーキングセットを最小化して解放する。

DLLKERNEL32.dll呼出規約winapi

シグネチャ

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

BOOL K32EmptyWorkingSet(
    HANDLE hProcess
);

パラメーター

名前	型	方向
hProcess	HANDLE	in

戻り値の型: BOOL

各言語での呼び出し定義

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

BOOL K32EmptyWorkingSet(
    HANDLE hProcess
);

[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("KERNEL32.dll", ExactSpelling = true)]
static extern bool K32EmptyWorkingSet(
    IntPtr hProcess   // HANDLE
);

<DllImport("KERNEL32.dll", ExactSpelling:=True)>
Public Shared Function K32EmptyWorkingSet(
    hProcess As IntPtr   ' HANDLE
) As Boolean
End Function

' hProcess : HANDLE
Declare PtrSafe Function K32EmptyWorkingSet Lib "kernel32" ( _
    ByVal hProcess 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

K32EmptyWorkingSet = ctypes.windll.kernel32.K32EmptyWorkingSet
K32EmptyWorkingSet.restype = wintypes.BOOL
K32EmptyWorkingSet.argtypes = [
    wintypes.HANDLE,  # hProcess : HANDLE
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
K32EmptyWorkingSet = Fiddle::Function.new(
  lib['K32EmptyWorkingSet'],
  [
    Fiddle::TYPE_VOIDP,  # hProcess : HANDLE
  ],
  Fiddle::TYPE_INT)

#[link(name = "kernel32")]
extern "system" {
    fn K32EmptyWorkingSet(
        hProcess: *mut core::ffi::c_void  // HANDLE
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("KERNEL32.dll")]
public static extern bool K32EmptyWorkingSet(IntPtr hProcess);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_K32EmptyWorkingSet' -Namespace Win32 -PassThru
# $api::K32EmptyWorkingSet(hProcess)

#uselib "KERNEL32.dll"
#func global K32EmptyWorkingSet "K32EmptyWorkingSet" sptr
; K32EmptyWorkingSet hProcess   ; 戻り値は stat
; hProcess : 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 "KERNEL32.dll"
#cfunc global K32EmptyWorkingSet "K32EmptyWorkingSet" sptr
; res = K32EmptyWorkingSet(hProcess)
; hProcess : HANDLE -> "sptr"

; BOOL K32EmptyWorkingSet(HANDLE hProcess)
#uselib "KERNEL32.dll"
#cfunc global K32EmptyWorkingSet "K32EmptyWorkingSet" intptr
; res = K32EmptyWorkingSet(hProcess)
; hProcess : HANDLE -> "intptr"

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
	procK32EmptyWorkingSet = kernel32.NewProc("K32EmptyWorkingSet")
)

// hProcess (HANDLE)
r1, _, err := procK32EmptyWorkingSet.Call(
	uintptr(hProcess),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function K32EmptyWorkingSet(
  hProcess: THandle   // HANDLE
): BOOL; stdcall;
  external 'KERNEL32.dll' name 'K32EmptyWorkingSet';

result := DllCall("KERNEL32\K32EmptyWorkingSet"
    , "Ptr", hProcess   ; HANDLE
    , "Int")   ; return: BOOL

●K32EmptyWorkingSet(hProcess) = DLL("KERNEL32.dll", "bool K32EmptyWorkingSet(void*)")
# 呼び出し: K32EmptyWorkingSet(hProcess)
# hProcess : 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)。