.NET WinForms – 如何监听系统LogOff，用户锁定，Hibernate启动和系统恢复的事件？

我想在我的Windows窗体.NET应用程序中监听以下系统范围事件中的事件：

注销锁定Windows Hibernate已启动睡眠启动系统已恢复

这些可能吗？

谢谢

Answer 1

如上所述，您可以使用WMI来捕获事件。
我正在添加一些我几年前写的代码示例（希望它仍然有效，因为它是在VS2010上用.Net3.5编写的）

这是一个收集所有活动的课程

Imports Microsoft.Win32 Imports System.Windows.Forms Public Class PowerMessageFilter Implements IMessageFilter Const WM_POWERBROADCAST As Integer = &H218 Const PBT_APMSUSPEND As Integer = &H4 Const PBT_APMSTANDBY As Integer = &H5 Const PBT_APMRESUMESUSPEND As Integer = &H7 Const PBT_APMRESUMESTANDBY As Integer = &H8 Protected Sub reportpowerchange(ByVal reason As Integer) Dim report As String = String.Empty Select Case (reason) Case PBT_APMSUSPEND report = "system is suspending operation " suspend_service() Exit Select Case PBT_APMSTANDBY report = "system is standing by " suspend_service() Exit Select Case PBT_APMRESUMESUSPEND report = "operation resuming after suspension." suspend_service() Exit Select Case PBT_APMRESUMESTANDBY report = "operation resuming after stand by." suspend_service() Exit Select End Select End Sub Public Function PreFilterMessage(ByRef m As Message) As Boolean Implements IMessageFilter.PreFilterMessage If WM_POWERBROADCAST = m.Msg Then Console.Out.WriteLine("Power Broadcast recieved.") Dim reason As Integer = m.WParam.ToInt32() reportpowerchange(reason) End If Return False End Function Private Sub suspend_service() ' Your suspend code End Sub End Class 

现在，对于监听器，我有一个Win32服务，它在后台运行并完成了监听工作

 Dim Filter As New PowerMessageFilter 'The Standby/Hibernation Filter catch; Application.AddMessageFilter(Filter) 

对不起，我没有参考我从中获取示例的网站，我想这可能来自上面的MSDN链接。

希望它可以帮助，
Liron