ntddbeep.inc

IOCTL 宏代码解码器。在驱动开发中

;    This is the include file that defines all constants and types for
;    the beep device.

ifndef _NTDDBEEP_
_NTDDBEEP_ equ 1

IOCTL_BEEP_SET equ CTL_CODE(FILE_DEVICE_BEEP, 0, METHOD_BUFFERED, FILE_ANY_ACCESS)

endif ; _NTDDBEEP_