| /* |
| * ntddbeep.h |
| * |
| * 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_ |
| #define _NTDDBEEP_ |
| |
| #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 /* _NTDDBEEP_ */ |
| |
