QOSCancel

関数

進行中のQoSオーバーラップ操作をキャンセルする。

DLLqwave.dll呼出規約winapi対応OSWindows Vista 以降

シグネチャ

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

BOOL QOSCancel(
    HANDLE QOSHandle,
    OVERLAPPED* Overlapped
);

パラメーター

名前	型	方向
QOSHandle	HANDLE	in
Overlapped	OVERLAPPED*	in

戻り値の型: BOOL

各言語での呼び出し定義

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

BOOL QOSCancel(
    HANDLE QOSHandle,
    OVERLAPPED* Overlapped
);

[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("qwave.dll", ExactSpelling = true)]
static extern bool QOSCancel(
    IntPtr QOSHandle,   // HANDLE
    IntPtr Overlapped   // OVERLAPPED*
);

<DllImport("qwave.dll", ExactSpelling:=True)>
Public Shared Function QOSCancel(
    QOSHandle As IntPtr,   ' HANDLE
    Overlapped As IntPtr   ' OVERLAPPED*
) As Boolean
End Function

' QOSHandle : HANDLE
' Overlapped : OVERLAPPED*
Declare PtrSafe Function QOSCancel Lib "qwave" ( _
    ByVal QOSHandle As LongPtr, _
    ByVal Overlapped 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

QOSCancel = ctypes.windll.qwave.QOSCancel
QOSCancel.restype = wintypes.BOOL
QOSCancel.argtypes = [
    wintypes.HANDLE,  # QOSHandle : HANDLE
    ctypes.c_void_p,  # Overlapped : OVERLAPPED*
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('qwave.dll')
QOSCancel = Fiddle::Function.new(
  lib['QOSCancel'],
  [
    Fiddle::TYPE_VOIDP,  # QOSHandle : HANDLE
    Fiddle::TYPE_VOIDP,  # Overlapped : OVERLAPPED*
  ],
  Fiddle::TYPE_INT)

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

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

#uselib "qwave.dll"
#func global QOSCancel "QOSCancel" sptr, sptr
; QOSCancel QOSHandle, varptr(Overlapped)   ; 戻り値は stat
; QOSHandle : HANDLE -> "sptr"
; Overlapped : OVERLAPPED* -> "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 "qwave.dll"
#cfunc global QOSCancel "QOSCancel" sptr, var
; res = QOSCancel(QOSHandle, Overlapped)
; QOSHandle : HANDLE -> "sptr"
; Overlapped : OVERLAPPED* -> "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 "qwave.dll"
#cfunc global QOSCancel "QOSCancel" sptr, sptr
; res = QOSCancel(QOSHandle, varptr(Overlapped))
; QOSHandle : HANDLE -> "sptr"
; Overlapped : OVERLAPPED* -> "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 QOSCancel(HANDLE QOSHandle, OVERLAPPED* Overlapped)
#uselib "qwave.dll"
#cfunc global QOSCancel "QOSCancel" intptr, var
; res = QOSCancel(QOSHandle, Overlapped)
; QOSHandle : HANDLE -> "intptr"
; Overlapped : OVERLAPPED* -> "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 QOSCancel(HANDLE QOSHandle, OVERLAPPED* Overlapped)
#uselib "qwave.dll"
#cfunc global QOSCancel "QOSCancel" intptr, intptr
; res = QOSCancel(QOSHandle, varptr(Overlapped))
; QOSHandle : HANDLE -> "intptr"
; Overlapped : OVERLAPPED* -> "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 (
	qwave = windows.NewLazySystemDLL("qwave.dll")
	procQOSCancel = qwave.NewProc("QOSCancel")
)

// QOSHandle (HANDLE), Overlapped (OVERLAPPED*)
r1, _, err := procQOSCancel.Call(
	uintptr(QOSHandle),
	uintptr(Overlapped),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function QOSCancel(
  QOSHandle: THandle;   // HANDLE
  Overlapped: Pointer   // OVERLAPPED*
): BOOL; stdcall;
  external 'qwave.dll' name 'QOSCancel';

result := DllCall("qwave\QOSCancel"
    , "Ptr", QOSHandle   ; HANDLE
    , "Ptr", Overlapped   ; OVERLAPPED*
    , "Int")   ; return: BOOL

●QOSCancel(QOSHandle, Overlapped) = DLL("qwave.dll", "bool QOSCancel(void*, void*)")
# 呼び出し: QOSCancel(QOSHandle, Overlapped)
# QOSHandle : HANDLE -> "void*"
# Overlapped : OVERLAPPED* -> "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)。