QueryIoRateControlInformationJobObject

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

DWORD QueryIoRateControlInformationJobObject(
    HANDLE hJob,   // optional
    LPCWSTR VolumeName,   // optional
    JOBOBJECT_IO_RATE_CONTROL_INFORMATION** InfoBlocks,
    DWORD* InfoBlockCount
);

<DllImport("KERNEL32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function QueryIoRateControlInformationJobObject(
    hJob As IntPtr,   ' HANDLE optional
    <MarshalAs(UnmanagedType.LPWStr)> VolumeName As String,   ' LPCWSTR optional
    InfoBlocks As IntPtr,   ' JOBOBJECT_IO_RATE_CONTROL_INFORMATION** out
    <Out> ByRef InfoBlockCount As UInteger   ' DWORD* out
) As UInteger
End Function

' hJob : HANDLE optional
' VolumeName : LPCWSTR optional
' InfoBlocks : JOBOBJECT_IO_RATE_CONTROL_INFORMATION** out
' InfoBlockCount : DWORD* out
Declare PtrSafe Function QueryIoRateControlInformationJobObject Lib "kernel32" ( _
    ByVal hJob As LongPtr, _
    ByVal VolumeName As LongPtr, _
    ByVal InfoBlocks As LongPtr, _
    ByRef InfoBlockCount 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

QueryIoRateControlInformationJobObject = ctypes.windll.kernel32.QueryIoRateControlInformationJobObject
QueryIoRateControlInformationJobObject.restype = wintypes.DWORD
QueryIoRateControlInformationJobObject.argtypes = [
    wintypes.HANDLE,  # hJob : HANDLE optional
    wintypes.LPCWSTR,  # VolumeName : LPCWSTR optional
    ctypes.c_void_p,  # InfoBlocks : JOBOBJECT_IO_RATE_CONTROL_INFORMATION** out
    ctypes.POINTER(wintypes.DWORD),  # InfoBlockCount : DWORD* out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
QueryIoRateControlInformationJobObject = Fiddle::Function.new(
  lib['QueryIoRateControlInformationJobObject'],
  [
    Fiddle::TYPE_VOIDP,  # hJob : HANDLE optional
    Fiddle::TYPE_VOIDP,  # VolumeName : LPCWSTR optional
    Fiddle::TYPE_VOIDP,  # InfoBlocks : JOBOBJECT_IO_RATE_CONTROL_INFORMATION** out
    Fiddle::TYPE_VOIDP,  # InfoBlockCount : DWORD* out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "kernel32")]
extern "system" {
    fn QueryIoRateControlInformationJobObject(
        hJob: *mut core::ffi::c_void,  // HANDLE optional
        VolumeName: *const u16,  // LPCWSTR optional
        InfoBlocks: *mut *mut JOBOBJECT_IO_RATE_CONTROL_INFORMATION,  // JOBOBJECT_IO_RATE_CONTROL_INFORMATION** out
        InfoBlockCount: *mut u32  // DWORD* out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("KERNEL32.dll", SetLastError = true)]
public static extern uint QueryIoRateControlInformationJobObject(IntPtr hJob, [MarshalAs(UnmanagedType.LPWStr)] string VolumeName, IntPtr InfoBlocks, out uint InfoBlockCount);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_QueryIoRateControlInformationJobObject' -Namespace Win32 -PassThru
# $api::QueryIoRateControlInformationJobObject(hJob, VolumeName, InfoBlocks, InfoBlockCount)

#uselib "KERNEL32.dll"
#func global QueryIoRateControlInformationJobObject "QueryIoRateControlInformationJobObject" sptr, sptr, sptr, sptr
; QueryIoRateControlInformationJobObject hJob, VolumeName, varptr(InfoBlocks), varptr(InfoBlockCount)   ; 戻り値は stat
; hJob : HANDLE optional -> "sptr"
; VolumeName : LPCWSTR optional -> "sptr"
; InfoBlocks : JOBOBJECT_IO_RATE_CONTROL_INFORMATION** out -> "sptr"
; InfoBlockCount : 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。

#uselib "KERNEL32.dll"
#cfunc global QueryIoRateControlInformationJobObject "QueryIoRateControlInformationJobObject" sptr, wstr, var, var
; res = QueryIoRateControlInformationJobObject(hJob, VolumeName, InfoBlocks, InfoBlockCount)
; hJob : HANDLE optional -> "sptr"
; VolumeName : LPCWSTR optional -> "wstr"
; InfoBlocks : JOBOBJECT_IO_RATE_CONTROL_INFORMATION** out -> "var"
; InfoBlockCount : 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 QueryIoRateControlInformationJobObject(HANDLE hJob, LPCWSTR VolumeName, JOBOBJECT_IO_RATE_CONTROL_INFORMATION** InfoBlocks, DWORD* InfoBlockCount)
#uselib "KERNEL32.dll"
#cfunc global QueryIoRateControlInformationJobObject "QueryIoRateControlInformationJobObject" intptr, wstr, var, var
; res = QueryIoRateControlInformationJobObject(hJob, VolumeName, InfoBlocks, InfoBlockCount)
; hJob : HANDLE optional -> "intptr"
; VolumeName : LPCWSTR optional -> "wstr"
; InfoBlocks : JOBOBJECT_IO_RATE_CONTROL_INFORMATION** out -> "var"
; InfoBlockCount : 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。

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

var (
	kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
	procQueryIoRateControlInformationJobObject = kernel32.NewProc("QueryIoRateControlInformationJobObject")
)

// hJob (HANDLE optional), VolumeName (LPCWSTR optional), InfoBlocks (JOBOBJECT_IO_RATE_CONTROL_INFORMATION** out), InfoBlockCount (DWORD* out)
r1, _, err := procQueryIoRateControlInformationJobObject.Call(
	uintptr(hJob),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(VolumeName))),
	uintptr(InfoBlocks),
	uintptr(InfoBlockCount),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function QueryIoRateControlInformationJobObject(
  hJob: THandle;   // HANDLE optional
  VolumeName: PWideChar;   // LPCWSTR optional
  InfoBlocks: Pointer;   // JOBOBJECT_IO_RATE_CONTROL_INFORMATION** out
  InfoBlockCount: Pointer   // DWORD* out
): DWORD; stdcall;
  external 'KERNEL32.dll' name 'QueryIoRateControlInformationJobObject';

result := DllCall("KERNEL32\QueryIoRateControlInformationJobObject"
    , "Ptr", hJob   ; HANDLE optional
    , "WStr", VolumeName   ; LPCWSTR optional
    , "Ptr", InfoBlocks   ; JOBOBJECT_IO_RATE_CONTROL_INFORMATION** out
    , "Ptr", InfoBlockCount   ; DWORD* out
    , "UInt")   ; return: DWORD

●QueryIoRateControlInformationJobObject(hJob, VolumeName, InfoBlocks, InfoBlockCount) = DLL("KERNEL32.dll", "dword QueryIoRateControlInformationJobObject(void*, char*, void*, void*)")
# 呼び出し: QueryIoRateControlInformationJobObject(hJob, VolumeName, InfoBlocks, InfoBlockCount)
# hJob : HANDLE optional -> "void*"
# VolumeName : LPCWSTR optional -> "char*"
# InfoBlocks : JOBOBJECT_IO_RATE_CONTROL_INFORMATION** out -> "void*"
# InfoBlockCount : 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)。