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/*
* 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
#pragma pack(push,4)
#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
#pragma pack(pop)
#ifdef __cplusplus
}
#endif
#endif /* __NTDDBEEP_H */
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