mirror of https://github.com/tongzx/nt5src
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
70 lines
1.4 KiB
70 lines
1.4 KiB
/*++ BUILD Version: 0001 // Increment this if a change has global effects
|
|
|
|
Copyright (c) Microsoft Corporation. All rights reserved.
|
|
|
|
Module Name:
|
|
|
|
ntddbeep.h
|
|
|
|
Abstract:
|
|
|
|
This is the include file that defines all constants and types for
|
|
the beep device.
|
|
|
|
Author:
|
|
|
|
Lee A. Smith (lees) 02-Aug-1991.
|
|
|
|
Revision History:
|
|
|
|
--*/
|
|
|
|
#ifndef _NTDDBEEP_
|
|
#define _NTDDBEEP_
|
|
|
|
#if _MSC_VER > 1000
|
|
#pragma once
|
|
#endif
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
//
|
|
// Device Name - this string is the name of the device. It is the name
|
|
// that should be passed to NtOpenFile when accessing the device.
|
|
//
|
|
// Note: For devices that support multiple units, it should be suffixed
|
|
// with the Ascii representation of the unit number.
|
|
//
|
|
|
|
#define DD_BEEP_DEVICE_NAME "\\Device\\Beep"
|
|
#define DD_BEEP_DEVICE_NAME_U L"\\Device\\Beep"
|
|
|
|
//
|
|
// NtDeviceIoControlFile IoControlCode values for this device.
|
|
//
|
|
// Warning: Remember that the low two bits of the code specify how the
|
|
// buffers are passed to the driver!
|
|
//
|
|
|
|
#define IOCTL_BEEP_SET CTL_CODE(FILE_DEVICE_BEEP, 0, METHOD_BUFFERED, FILE_ANY_ACCESS)
|
|
|
|
//
|
|
// NtDeviceIoControlFile OutputBuffer record structures for
|
|
// IOCTL_BEEP_SET.
|
|
//
|
|
|
|
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
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif // _NTDDBEEP_
|