ServiceBase.OnPowerEvent(PowerBroadcastStatus) Method
Definition
Important
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When implemented in a derived class, executes when the computer's power status has changed. This applies to laptop computers when they go into suspended mode, which is not the same as a system shutdown.
protected:
virtual bool OnPowerEvent(System::ServiceProcess::PowerBroadcastStatus powerStatus);
protected virtual bool OnPowerEvent (System.ServiceProcess.PowerBroadcastStatus powerStatus);
abstract member OnPowerEvent : System.ServiceProcess.PowerBroadcastStatus -> bool
override this.OnPowerEvent : System.ServiceProcess.PowerBroadcastStatus -> bool
Protected Overridable Function OnPowerEvent (powerStatus As PowerBroadcastStatus) As Boolean
Parameters
- powerStatus
- PowerBroadcastStatus
A PowerBroadcastStatus that indicates a notification from the system about its power status.
Returns
When implemented in a derived class, the needs of your application determine what value to return. For example, if a QuerySuspend
broadcast status is passed, you could cause your application to reject the query by returning false
.
Remarks
Use OnPowerEvent to specify the processing that occurs when the system event indicated in the PowerBroadcastStatus enumeration occurs--for example, when the computer is placed in suspended mode or indicates low battery power.
OnPowerEvent is expected to be overridden when the CanHandlePowerEvent property is true
.