TRUE means that testing operations will be compiled-in and FALSE means taht they won’t

These constants define thread priorities for use in THREADSTRUCT.PriorityLevel.

These constants define thread statuses for use in THREADSTRUCT.Status.

above-normal, but not highest, priority

below-normal, but not lowest, priority

not a thread priority; indicates error in functions returning a thread priority

highest non-time-critical priority

thread is only run when no other threads are queued to run

lowest non-idle priority

normal (and default) priority

thread is likely to be always first in the queue to run whenever it is queued

lock for access to ThreadScheduler

thread doesn’t exist: empty slot where applicable

thread has nothing to do at the moment

thread waiting for I/O to complete: StatusDatum indicates DeviceNum (see <I/O>)

thread waiting for a certain I/O device num in StatusDatum to become avaliable; returns with access to the device

thread waiting to acquire a lock: StatusDataum is address of the lock; see GetLock

thread waiting to be notified on a lock: StatusDatum is address of the lock; see WaitForNotify

thread waiting for message to be processed by another thread: StatusDatum holds the handle of that thread

thread is running

thread chose to sleep: StatusDatum indicates minimum sleeping time requested in milliseconds, or INFINITE for always

same as THREAD_STATUS_SLEEP, except that it will receive I/O callbacks

thread ran out of time: StatusDatum indicates time spent in last time slice (milliseconds)

Virtual Address of GDT