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| 1 | /*
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| 2 | * ntddbeep.h
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| 3 | *
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| 4 | * Beep device IOCTL interface
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| 5 | *
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| 6 | * This file is part of the w32api package.
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| 7 | *
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| 8 | * Contributors:
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| 9 | * Created by Casper S. Hornstrup <chorns@users.sourceforge.net>
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| 10 | *
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| 11 | * THIS SOFTWARE IS NOT COPYRIGHTED
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| 12 | *
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| 13 | * This source code is offered for use in the public domain. You may
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| 14 | * use, modify or distribute it freely.
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| 15 | *
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| 16 | * This code is distributed in the hope that it will be useful but
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| 17 | * WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY
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| 18 | * DISCLAIMED. This includes but is not limited to warranties of
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| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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| 20 | *
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| 21 | */
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| 22 |
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| 23 | #ifndef __NTDDBEEP_H
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| 24 | #define __NTDDBEEP_H
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| 25 |
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| 26 | #if __GNUC__ >=3
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| 27 | #pragma GCC system_header
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| 28 | #endif
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| 29 |
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| 30 | #ifdef __cplusplus
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| 31 | extern "C" {
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| 32 | #endif
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| 33 |
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| 34 | #include "ntddk.h"
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| 35 |
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| 36 | #define DD_BEEP_DEVICE_NAME "\\Device\\Beep"
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| 37 | #define DD_BEEP_DEVICE_NAME_U L"\\Device\\Beep"
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| 38 |
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| 39 | #define IOCTL_BEEP_SET \
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| 40 | CTL_CODE(FILE_DEVICE_BEEP, 0, METHOD_BUFFERED, FILE_ANY_ACCESS)
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| 41 |
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| 42 | typedef struct _BEEP_SET_PARAMETERS {
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| 43 | ULONG Frequency;
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| 44 | ULONG Duration;
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| 45 | } BEEP_SET_PARAMETERS, *PBEEP_SET_PARAMETERS;
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| 46 |
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| 47 | #define BEEP_FREQUENCY_MINIMUM 0x25
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| 48 | #define BEEP_FREQUENCY_MAXIMUM 0x7FFF
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| 49 |
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| 50 | #ifdef __cplusplus
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| 51 | }
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| 52 | #endif
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| 53 |
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| 54 | #endif /* __NTDDBEEP_H */
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