_SHELL_QueryAppyTimeAvailable

include shell.inc
VxDcall _SHELL_QueryAppyTimeAvailable
or eax, eax
jz not_available

Specifies whether application time events are available to VxDs. Application time events are available only after Windows initializes; they cease to be available when Windows begins to shutdown or if the message server GP faults. Uses C calling conventions.

• Returns nonzero in the EAX register if application time events are available. Otherwise, returns zero.

This is an asynchronous service.

This service does not specify whether the system is currently in an appy-time state. The message server may GP fault if a call to the CallRing3 service by a VxD GP faults. Under such conditions, application time is permanently disabled until the system shuts down and restarts.