System.Threading.ThreadState
namespace System.Threading
{
public enum ThreadState
{
Aborted = 256,
AbortRequested = 128,
Background = 4,
Running = 0,
Stopped = 16,
StopRequested = 1,
Suspended = 64,
SuspendRequested = 2,
Unstarted = 8,
WaitSleepJoin = 32
}
}