This enumeration represents the different thread priority levels. A thread's priority level is computed relative to the process priority level using ProcessThread.PriorityLevel . public enum ThreadPriorityLevel { Normal = 0 , AboveNormal = 1 , Highest = 2 , TimeCritical = 15 , Idle = -15 , Lowest = -2 , BelowNormal = -1 } HierarchySystem.Object System.ValueType System.Enum(System.IComparable, System.IFormattable , System.IConvertible) ThreadPriorityLevel Returned ByProcessThread.PriorityLevel Passed ToProcessThread.PriorityLevel |