Close App after 1 minute of inactive time - vb.net

Question

I want the vb.net app to close after 1 minute of inactive time.
this code will close the app after 1 min for active user as well.
Dim app As Application
Private Sub MainWindow_Loaded(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load
Dim aTimer As System.Timers.Timer
aTimer = New System.Timers.Timer()
aTimer.Interval = 60000
AddHandler aTimer.Elapsed, AddressOf OnTimedEvent
aTimer.Enabled = True
End Sub
Private Sub OnTimedEvent(ByVal source As Object, ByVal e As System.Timers.ElapsedEventArgs)
app.Exit()
End Sub

Answer 1

You can try as follow.
Create a System.Timers.Timerin your window.xaml.vb file:
Private WithEvents CloseTimer As New Timers.Timer
In the constructor, add the following lines:
CloseTimer.Interval = 1000 * 5 ' Remember that interval is set in milliseconds
CloseTimer.Start()
Every time the mouse is moved on the window, the timer has to be reset, so use the MouseMove event like this:
Private Sub Window_MouseMove(sender As Object, e As MouseEventArgs) Handles Me.MouseMove
ResetTimer()
End Sub
And define the ResetTimer() subroutine as follow:
Private Sub ResetTimer()
CloseTimer.Stop()
CloseTimer.Start()
End Sub
Obviously you can change / improve that condition: for example, if the user doesn't move the mouse because he's typing in a Textbox, you should manage this condition, too:
Private Sub Window_PreviewKeyDown() Handles Me.PreviewKeyDown
ResetTimer()
End Sub
This will catch all KeyDown event from the window and all its children controls.
Finally add the Timer_Elapsed event, which will be fired when the timer interval elapsed:
Private Shared Sub Timer_Elapsed() Handles CloseTimer.Elapsed
Environment.Exit(0)
End Sub
If you notice there are more conditions to keep the application running, just find the appropriate event and in its subscription call ResetTimer().
Note that this method is quite simple but, depending on the architecture of the application, there may be better methods.