QOSEnumerateFlows

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

BOOL QOSEnumerateFlows(
    HANDLE QOSHandle,
    DWORD* Size,
    void* Buffer
);

<DllImport("qwave.dll", ExactSpelling:=True)>
Public Shared Function QOSEnumerateFlows(
    QOSHandle As IntPtr,   ' HANDLE
    ByRef Size As UInteger,   ' DWORD* in/out
    Buffer As IntPtr   ' void* out
) As Boolean
End Function

' QOSHandle : HANDLE
' Size : DWORD* in/out
' Buffer : void* out
Declare PtrSafe Function QOSEnumerateFlows Lib "qwave" ( _
    ByVal QOSHandle As LongPtr, _
    ByRef Size As Long, _
    ByVal Buffer 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

QOSEnumerateFlows = ctypes.windll.qwave.QOSEnumerateFlows
QOSEnumerateFlows.restype = wintypes.BOOL
QOSEnumerateFlows.argtypes = [
    wintypes.HANDLE,  # QOSHandle : HANDLE
    ctypes.POINTER(wintypes.DWORD),  # Size : DWORD* in/out
    ctypes.POINTER(None),  # Buffer : void* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('qwave.dll')
QOSEnumerateFlows = Fiddle::Function.new(
  lib['QOSEnumerateFlows'],
  [
    Fiddle::TYPE_VOIDP,  # QOSHandle : HANDLE
    Fiddle::TYPE_VOIDP,  # Size : DWORD* in/out
    Fiddle::TYPE_VOIDP,  # Buffer : void* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "qwave")]
extern "system" {
    fn QOSEnumerateFlows(
        QOSHandle: *mut core::ffi::c_void,  // HANDLE
        Size: *mut u32,  // DWORD* in/out
        Buffer: *mut ()  // void* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("qwave.dll")]
public static extern bool QOSEnumerateFlows(IntPtr QOSHandle, ref uint Size, IntPtr Buffer);
"@
$api = Add-Type -MemberDefinition $sig -Name 'qwave_QOSEnumerateFlows' -Namespace Win32 -PassThru
# $api::QOSEnumerateFlows(QOSHandle, Size, Buffer)

#uselib "qwave.dll"
#func global QOSEnumerateFlows "QOSEnumerateFlows" sptr, sptr, sptr
; QOSEnumerateFlows QOSHandle, varptr(Size), Buffer   ; 戻り値は stat
; QOSHandle : HANDLE -> "sptr"
; Size : DWORD* in/out -> "sptr"
; Buffer : void* 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 "qwave.dll"
#cfunc global QOSEnumerateFlows "QOSEnumerateFlows" sptr, var, sptr
; res = QOSEnumerateFlows(QOSHandle, Size, Buffer)
; QOSHandle : HANDLE -> "sptr"
; Size : DWORD* in/out -> "var"
; Buffer : void* out -> "sptr"
; ※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 QOSEnumerateFlows(HANDLE QOSHandle, DWORD* Size, void* Buffer)
#uselib "qwave.dll"
#cfunc global QOSEnumerateFlows "QOSEnumerateFlows" intptr, var, intptr
; res = QOSEnumerateFlows(QOSHandle, Size, Buffer)
; QOSHandle : HANDLE -> "intptr"
; Size : DWORD* in/out -> "var"
; Buffer : void* out -> "intptr"
; ※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 (
	qwave = windows.NewLazySystemDLL("qwave.dll")
	procQOSEnumerateFlows = qwave.NewProc("QOSEnumerateFlows")
)

// QOSHandle (HANDLE), Size (DWORD* in/out), Buffer (void* out)
r1, _, err := procQOSEnumerateFlows.Call(
	uintptr(QOSHandle),
	uintptr(Size),
	uintptr(Buffer),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function QOSEnumerateFlows(
  QOSHandle: THandle;   // HANDLE
  Size: Pointer;   // DWORD* in/out
  Buffer: Pointer   // void* out
): BOOL; stdcall;
  external 'qwave.dll' name 'QOSEnumerateFlows';

result := DllCall("qwave\QOSEnumerateFlows"
    , "Ptr", QOSHandle   ; HANDLE
    , "Ptr", Size   ; DWORD* in/out
    , "Ptr", Buffer   ; void* out
    , "Int")   ; return: BOOL

●QOSEnumerateFlows(QOSHandle, Size, Buffer) = DLL("qwave.dll", "bool QOSEnumerateFlows(void*, void*, void*)")
# 呼び出し: QOSEnumerateFlows(QOSHandle, Size, Buffer)
# QOSHandle : HANDLE -> "void*"
# Size : DWORD* in/out -> "void*"
# Buffer : void* 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)。