SetProcessWorkingSetSize

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

BOOL SetProcessWorkingSetSize(
    HANDLE hProcess,
    UINT_PTR dwMinimumWorkingSetSize,
    UINT_PTR dwMaximumWorkingSetSize
);

<DllImport("KERNEL32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function SetProcessWorkingSetSize(
    hProcess As IntPtr,   ' HANDLE
    dwMinimumWorkingSetSize As UIntPtr,   ' UINT_PTR
    dwMaximumWorkingSetSize As UIntPtr   ' UINT_PTR
) As <MarshalAs(UnmanagedType.Bool)> Boolean
End Function

' hProcess : HANDLE
' dwMinimumWorkingSetSize : UINT_PTR
' dwMaximumWorkingSetSize : UINT_PTR
Declare PtrSafe Function SetProcessWorkingSetSize Lib "kernel32" ( _
    ByVal hProcess As LongPtr, _
    ByVal dwMinimumWorkingSetSize As LongPtr, _
    ByVal dwMaximumWorkingSetSize 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

SetProcessWorkingSetSize = ctypes.windll.kernel32.SetProcessWorkingSetSize
SetProcessWorkingSetSize.restype = wintypes.BOOL
SetProcessWorkingSetSize.argtypes = [
    wintypes.HANDLE,  # hProcess : HANDLE
    ctypes.c_size_t,  # dwMinimumWorkingSetSize : UINT_PTR
    ctypes.c_size_t,  # dwMaximumWorkingSetSize : UINT_PTR
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
SetProcessWorkingSetSize = Fiddle::Function.new(
  lib['SetProcessWorkingSetSize'],
  [
    Fiddle::TYPE_VOIDP,  # hProcess : HANDLE
    Fiddle::TYPE_UINTPTR_T,  # dwMinimumWorkingSetSize : UINT_PTR
    Fiddle::TYPE_UINTPTR_T,  # dwMaximumWorkingSetSize : UINT_PTR
  ],
  Fiddle::TYPE_INT)

#[link(name = "kernel32")]
extern "system" {
    fn SetProcessWorkingSetSize(
        hProcess: *mut core::ffi::c_void,  // HANDLE
        dwMinimumWorkingSetSize: usize,  // UINT_PTR
        dwMaximumWorkingSetSize: usize  // UINT_PTR
    ) -> 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 SetProcessWorkingSetSize(IntPtr hProcess, UIntPtr dwMinimumWorkingSetSize, UIntPtr dwMaximumWorkingSetSize);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_SetProcessWorkingSetSize' -Namespace Win32 -PassThru
# $api::SetProcessWorkingSetSize(hProcess, dwMinimumWorkingSetSize, dwMaximumWorkingSetSize)

#uselib "KERNEL32.dll"
#func global SetProcessWorkingSetSize "SetProcessWorkingSetSize" sptr, sptr, sptr
; SetProcessWorkingSetSize hProcess, dwMinimumWorkingSetSize, dwMaximumWorkingSetSize   ; 戻り値は stat
; hProcess : HANDLE -> "sptr"
; dwMinimumWorkingSetSize : UINT_PTR -> "sptr"
; dwMaximumWorkingSetSize : UINT_PTR -> "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 SetProcessWorkingSetSize "SetProcessWorkingSetSize" sptr, sptr, sptr
; res = SetProcessWorkingSetSize(hProcess, dwMinimumWorkingSetSize, dwMaximumWorkingSetSize)
; hProcess : HANDLE -> "sptr"
; dwMinimumWorkingSetSize : UINT_PTR -> "sptr"
; dwMaximumWorkingSetSize : UINT_PTR -> "sptr"

; BOOL SetProcessWorkingSetSize(HANDLE hProcess, UINT_PTR dwMinimumWorkingSetSize, UINT_PTR dwMaximumWorkingSetSize)
#uselib "KERNEL32.dll"
#cfunc global SetProcessWorkingSetSize "SetProcessWorkingSetSize" intptr, intptr, intptr
; res = SetProcessWorkingSetSize(hProcess, dwMinimumWorkingSetSize, dwMaximumWorkingSetSize)
; hProcess : HANDLE -> "intptr"
; dwMinimumWorkingSetSize : UINT_PTR -> "intptr"
; dwMaximumWorkingSetSize : UINT_PTR -> "intptr"

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

var (
	kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
	procSetProcessWorkingSetSize = kernel32.NewProc("SetProcessWorkingSetSize")
)

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

function SetProcessWorkingSetSize(
  hProcess: THandle;   // HANDLE
  dwMinimumWorkingSetSize: NativeUInt;   // UINT_PTR
  dwMaximumWorkingSetSize: NativeUInt   // UINT_PTR
): BOOL; stdcall;
  external 'KERNEL32.dll' name 'SetProcessWorkingSetSize';

result := DllCall("KERNEL32\SetProcessWorkingSetSize"
    , "Ptr", hProcess   ; HANDLE
    , "UPtr", dwMinimumWorkingSetSize   ; UINT_PTR
    , "UPtr", dwMaximumWorkingSetSize   ; UINT_PTR
    , "Int")   ; return: BOOL

●SetProcessWorkingSetSize(hProcess, dwMinimumWorkingSetSize, dwMaximumWorkingSetSize) = DLL("KERNEL32.dll", "bool SetProcessWorkingSetSize(void*, int, int)")
# 呼び出し: SetProcessWorkingSetSize(hProcess, dwMinimumWorkingSetSize, dwMaximumWorkingSetSize)
# hProcess : HANDLE -> "void*"
# dwMinimumWorkingSetSize : UINT_PTR -> "int"
# dwMaximumWorkingSetSize : UINT_PTR -> "int"
# 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)。

const std = @import("std");

extern "kernel32" fn SetProcessWorkingSetSize(
    hProcess: ?*anyopaque, // HANDLE
    dwMinimumWorkingSetSize: usize, // UINT_PTR
    dwMaximumWorkingSetSize: usize // UINT_PTR
) callconv(std.os.windows.WINAPI) i32;

proc SetProcessWorkingSetSize(
    hProcess: pointer,  # HANDLE
    dwMinimumWorkingSetSize: uint,  # UINT_PTR
    dwMaximumWorkingSetSize: uint  # UINT_PTR
): int32 {.importc: "SetProcessWorkingSetSize", stdcall, dynlib: "KERNEL32.dll".}

pragma(lib, "kernel32");
extern(Windows)
int SetProcessWorkingSetSize(
    void* hProcess,   // HANDLE
    size_t dwMinimumWorkingSetSize,   // UINT_PTR
    size_t dwMaximumWorkingSetSize   // UINT_PTR
);

ccall((:SetProcessWorkingSetSize, "KERNEL32.dll"), stdcall, Int32,
      (Ptr{Cvoid}, Csize_t, Csize_t),
      hProcess, dwMinimumWorkingSetSize, dwMaximumWorkingSetSize)
# hProcess : HANDLE -> Ptr{Cvoid}
# dwMinimumWorkingSetSize : UINT_PTR -> Csize_t
# dwMaximumWorkingSetSize : UINT_PTR -> Csize_t
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t SetProcessWorkingSetSize(
    void* hProcess,
    uintptr_t dwMinimumWorkingSetSize,
    uintptr_t dwMaximumWorkingSetSize);
]]
local kernel32 = ffi.load("kernel32")
-- kernel32.SetProcessWorkingSetSize(hProcess, dwMinimumWorkingSetSize, dwMaximumWorkingSetSize)
-- hProcess : HANDLE
-- dwMinimumWorkingSetSize : UINT_PTR
-- dwMaximumWorkingSetSize : UINT_PTR
-- 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。

const koffi = require('koffi');
const lib = koffi.load('KERNEL32.dll');
const SetProcessWorkingSetSize = lib.func('__stdcall', 'SetProcessWorkingSetSize', 'int32_t', ['void *', 'uintptr_t', 'uintptr_t']);
// SetProcessWorkingSetSize(hProcess, dwMinimumWorkingSetSize, dwMaximumWorkingSetSize)
// hProcess : HANDLE -> 'void *'
// dwMinimumWorkingSetSize : UINT_PTR -> 'uintptr_t'
// dwMaximumWorkingSetSize : UINT_PTR -> 'uintptr_t'
// 出力ポインタは koffi.out(...) で包む。構造体は koffi.struct で定義。

const lib = Deno.dlopen("KERNEL32.dll", {
  SetProcessWorkingSetSize: { parameters: ["pointer", "usize", "usize"], result: "i32" },
});
// lib.symbols.SetProcessWorkingSetSize(hProcess, dwMinimumWorkingSetSize, dwMaximumWorkingSetSize)
// hProcess : HANDLE -> "pointer"
// dwMinimumWorkingSetSize : UINT_PTR -> "usize"
// dwMaximumWorkingSetSize : UINT_PTR -> "usize"
// 文字列引数は "buffer"(NUL 終端のバイト列を Uint8Array で渡す)。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。

<?php
$ffi = FFI::cdef(<<<C
int32_t SetProcessWorkingSetSize(
    void* hProcess,
    size_t dwMinimumWorkingSetSize,
    size_t dwMaximumWorkingSetSize);
C, "KERNEL32.dll");
// $ffi->SetProcessWorkingSetSize(hProcess, dwMinimumWorkingSetSize, dwMaximumWorkingSetSize);
// hProcess : HANDLE
// dwMinimumWorkingSetSize : UINT_PTR
// dwMaximumWorkingSetSize : UINT_PTR
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。

import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;

public interface Kernel32 extends StdCallLibrary {
    Kernel32 INSTANCE = Native.load("kernel32", Kernel32.class);
    boolean SetProcessWorkingSetSize(
        Pointer hProcess,   // HANDLE
        long dwMinimumWorkingSetSize,   // UINT_PTR
        long dwMaximumWorkingSetSize   // UINT_PTR
    );
}

@[Link("kernel32")]
lib LibKERNEL32
  fun SetProcessWorkingSetSize = SetProcessWorkingSetSize(
    hProcess : Void*,   # HANDLE
    dwMinimumWorkingSetSize : LibC::SizeT,   # UINT_PTR
    dwMaximumWorkingSetSize : LibC::SizeT   # UINT_PTR
  ) : Int32
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。

import 'dart:ffi';
import 'package:ffi/ffi.dart';

typedef SetProcessWorkingSetSizeNative = Int32 Function(Pointer<Void>, UintPtr, UintPtr);
typedef SetProcessWorkingSetSizeDart = int Function(Pointer<Void>, int, int);
final SetProcessWorkingSetSize = DynamicLibrary.open('KERNEL32.dll')
    .lookupFunction<SetProcessWorkingSetSizeNative, SetProcessWorkingSetSizeDart>('SetProcessWorkingSetSize');
// hProcess : HANDLE -> Pointer<Void>
// dwMinimumWorkingSetSize : UINT_PTR -> UintPtr
// dwMaximumWorkingSetSize : UINT_PTR -> UintPtr
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function SetProcessWorkingSetSize(
  hProcess: THandle;   // HANDLE
  dwMinimumWorkingSetSize: NativeUInt;   // UINT_PTR
  dwMaximumWorkingSetSize: NativeUInt   // UINT_PTR
): BOOL; stdcall;
  external 'KERNEL32.dll' name 'SetProcessWorkingSetSize';

import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "SetProcessWorkingSetSize"
  c_SetProcessWorkingSetSize :: Ptr () -> CUIntPtr -> CUIntPtr -> IO CInt
-- hProcess : HANDLE -> Ptr ()
-- dwMinimumWorkingSetSize : UINT_PTR -> CUIntPtr
-- dwMaximumWorkingSetSize : UINT_PTR -> CUIntPtr
-- 要 GHC(Windows)。stdcall は x64 では ccall として扱われる。ブロックする API は safe 呼び出し推奨。

open Ctypes
open Foreign

let setprocessworkingsetsize =
  foreign "SetProcessWorkingSetSize"
    ((ptr void) @-> size_t @-> size_t @-> returning int32_t)
(* hProcess : HANDLE -> (ptr void) *)
(* dwMinimumWorkingSetSize : UINT_PTR -> size_t *)
(* dwMaximumWorkingSetSize : UINT_PTR -> size_t *)
(* foreign は cdecl 前提。x64 Windows では WINAPI と一致。構造体は ctypes structure を定義のこと。 *)

(cffi:define-foreign-library kernel32 (t "KERNEL32.dll"))
(cffi:use-foreign-library kernel32)

(cffi:defcfun ("SetProcessWorkingSetSize" set-process-working-set-size :convention :stdcall) :int32
  (h-process :pointer)   ; HANDLE
  (dw-minimum-working-set-size :uint64)   ; UINT_PTR
  (dw-maximum-working-set-size :uint64))   ; UINT_PTR
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $SetProcessWorkingSetSize = Win32::API::More->new('KERNEL32',
    'BOOL SetProcessWorkingSetSize(HANDLE hProcess, WPARAM dwMinimumWorkingSetSize, WPARAM dwMaximumWorkingSetSize)');
# my $ret = $SetProcessWorkingSetSize->Call($hProcess, $dwMinimumWorkingSetSize, $dwMaximumWorkingSetSize);
# hProcess : HANDLE -> HANDLE
# dwMinimumWorkingSetSize : UINT_PTR -> WPARAM
# dwMaximumWorkingSetSize : UINT_PTR -> WPARAM
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。