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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 */
-