mingw-w64-headers/include/ntddbeep.h

/*
 * ntddbeep.h
 *
 * This file is part of the mingw-w64 runtime package.
 * No warranty is given; refer to the file DISCLAIMER within this package.
 *
 * Initial contributor is Casper S. Hornstrup <chorns@users.sourceforge.net>
 * Extended by Kai Tietz
 */

#ifndef _NTDDBEEP_
#define _NTDDBEEP_

#include <winapifamily.h>

#if WINAPI_FAMILY_PARTITION (WINAPI_PARTITION_DESKTOP)

#ifdef __cplusplus
extern "C" {
#endif

#define DD_BEEP_DEVICE_NAME "\\Device\\Beep"
#define DD_BEEP_DEVICE_NAME_U L"\\Device\\Beep"
#define BEEP_FREQUENCY_MINIMUM 0x25
#define BEEP_FREQUENCY_MAXIMUM 0x7fff
#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;

#ifdef __cplusplus
}
#endif

#endif
#endif