/*

 * ntddbeep.h

 *

 * Beep device IOCTL interface

 *

 * This file is part of the w32api package.

 *

 * Contributors:

 *   Created by Casper S. Hornstrup <chorns@users.sourceforge.net>

 *

 * THIS SOFTWARE IS NOT COPYRIGHTED

 *

 * This source code is offered for use in the public domain. You may

 * use, modify or distribute it freely.

 *

 * This code is distributed in the hope that it will be useful but

 * WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY

 * DISCLAIMED. This includes but is not limited to warranties of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

 *

 */

#ifndef __NTDDBEEP_H

#define __NTDDBEEP_H

#if __GNUC__ >=3

#pragma GCC system_header

#endif

#ifdef __cplusplus

extern "C" {

#endif

#include "ntddk.h"

#define DD_BEEP_DEVICE_NAME               "\\Device\\Beep"

#define DD_BEEP_DEVICE_NAME_U             L"\\Device\\Beep"

#define IOCTL_BEEP_SET \

  CTL_CODE(FILE_DEVICE_BEEP, 0, METHOD_BUFFERED, FILE_ANY_ACCESS)

typedef struct _BEEP_SET_PARAMETERS {

	ULONG  Frequency;

	ULONG  Duration;

} BEEP_SET_PARAMETERS, *PBEEP_SET_PARAMETERS;

#define BEEP_FREQUENCY_MINIMUM            0x25

#define BEEP_FREQUENCY_MAXIMUM            0x7FFF

#ifdef __cplusplus

}

#endif

#endif /* __NTDDBEEP_H */