System.Windows.Forms 2.0.0.0 System.Enum To be added. Specifies the system power status. Field System.Windows.Forms.PowerLineStatus The system is offline. 2.0.0.0 Field System.Windows.Forms.PowerLineStatus The system is online. 2.0.0.0 Field System.Windows.Forms.PowerLineStatus The power status of the system is unknown. 2.0.0.0