ReactOS  0.4.14-dev-323-g6fe6a88
ntddbeep.h
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1 /*
2  * ntddbeep.h
3  *
4  * Contributors:
5  * Created by Casper S. Hornstrup <chorns@users.sourceforge.net>
6  *
7  * THIS SOFTWARE IS NOT COPYRIGHTED
8  *
9  * This source code is offered for use in the public domain. You may
10  * use, modify or distribute it freely.
11  *
12  * This code is distributed in the hope that it will be useful but
13  * WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY
14  * DISCLAIMED. This includes but is not limited to warranties of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
16  *
17  */
18 
19 #ifndef _NTDDBEEP_
20 #define _NTDDBEEP_
21 
22 
23 #ifdef __cplusplus
24 extern "C" {
25 #endif
26 
27 #define DD_BEEP_DEVICE_NAME "\\Device\\Beep"
28 #define DD_BEEP_DEVICE_NAME_U L"\\Device\\Beep"
29 #define BEEP_FREQUENCY_MINIMUM 0x25
30 #define BEEP_FREQUENCY_MAXIMUM 0x7FFF
31 #define IOCTL_BEEP_SET CTL_CODE(FILE_DEVICE_BEEP, 0, METHOD_BUFFERED, FILE_ANY_ACCESS)
32 
33 typedef struct _BEEP_SET_PARAMETERS
34 {
38 
39 #ifdef __cplusplus
40 }
41 #endif
42 #endif
43 
struct _BEEP_SET_PARAMETERS * PBEEP_SET_PARAMETERS
unsigned int ULONG
Definition: retypes.h:1
struct _BEEP_SET_PARAMETERS BEEP_SET_PARAMETERS