Indicates the system's power status.
Assembly: System.ServiceProcess (in System.ServiceProcess.dll)
|Battery power is low.|
|An Advanced Power Management (APM) BIOS signaled an APM OEM event.|
|A change in the power status of the computer is detected, such as a switch from battery power to A/C. The system also broadcasts this event when remaining battery power slips below the threshold specified by the user or if the battery power changes by a specified percentage.|
|The system has requested permission to suspend the computer. An application that grants permission should carry out preparations for the suspension before returning.|
|The system was denied permission to suspend the computer. This status is broadcast if any application or driver denied a previous QuerySuspend status.|
|The computer has woken up automatically to handle an event.|
|The system has resumed operation after a critical suspension caused by a failing battery.|
|The system has resumed operation after being suspended.|
|The computer is about to enter a suspended state. This event is typically broadcast when all applications and installable drivers have returned true to a previous QuerySuspend state.|
is used by the ServiceBase class to indicate a change in the system's power status. You can design your application to react to any power status change.
Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.