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CodeBlocksPortable/WATCOM/h/nt/ddk/ntddbeep.h

50 lines
1.2 KiB
C

/*
* ntddbeep.h Beep device I/O control codes
*
* =========================================================================
*
* Open Watcom Project
*
* Copyright (c) 2004-2010 The Open Watcom Contributors. All Rights Reserved.
*
* This file is automatically generated. Do not edit directly.
*
* =========================================================================
*/
#ifndef _NTDDBEEP_
#define _NTDDBEEP_
#ifndef _ENABLE_AUTODEPEND
#pragma read_only_file;
#endif
#ifdef __cplusplus
extern "C" {
#endif
/* Beep device name */
#define DD_BEEP_DEVICE_NAME "\\Device\\Beep"
#define DD_BEEP_DEVICE_NAME_U L"\\Device\\Beep"
/* Beep device I/O control codes */
#define IOCTL_BEEP_SET \
CTL_CODE( FILE_DEVICE_BEEP, 0, METHOD_BUFFERED, FILE_ANY_ACCESS )
/* Beep frequency special values */
#define BEEP_FREQUENCY_MINIMUM 0x0025
#define BEEP_FREQUENCY_MAXIMUM 0x7FFF
/* Beep set parameters */
typedef struct _BEEP_SET_PARAMETERS {
ULONG Frequency;
ULONG Duration;
} BEEP_SET_PARAMETERS;
typedef BEEP_SET_PARAMETERS *PBEEP_SET_PARAMETERS;
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* _NTDDBEEP_ */