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I want my system to automatically log off user after may 10 minutes of being idle. How do I do that in vb.net?.Desktop application

Am Using this code:

VB
Private Declare Function GetLastInputInfo Lib "user32" (ByRef plii As LASTINPUTINFO) As Boolean
    Private Declare Function GetTickCount Lib "kernel32" () As Int32
    Private Sub frmAutoLogout_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Dim tim As New Timer
        tim.Interval = 200
        AddHandler tim.Tick, AddressOf tim_Tick
        tim.Start()
    End Sub
    Private Sub tim_Tick(ByVal sender As Object, ByVal e As EventArgs)
        Dim lii As LASTINPUTINFO
        lii.cbSize = Len(lii)
        GetLastInputInfo(lii)
        lblCountdown.Text = "You have (secs): " & ((GetTickCount() - lii.dwTime) / 1000.0).ToString
    End Sub
End Class


But the challenge i have it is checking the Windows Idle lather than the my application idle.
Posted
Updated 10-Jan-11 3:09am
v3
Comments
jerrykid 8-Jan-11 4:27am
   
auto log off an application or windows system?
Sandeep Mewara 8-Jan-11 4:48am
   
log-off from website or system?

To logoff:

http://pinvoke.net/default.aspx/user32.ExitWindowsEx[^]

To detect last windows activity:

http://pinvoke.net/default.aspx/user32.GetLastInputInfo#[^]

A tip I wrote:

The Windows API: Learn It - Live It[^]

And finally, google is your friend.
   
v2
If you want this to run as a background service in the system, you can perhaps write a Windows Service to achieve this. How to detect whether the user is using the system, or whether it is idle, I do not know.
   
v2
Comments
LloydA111 8-Jan-11 14:35pm
   
I suppose you could use a keyboard hook to detect keyboard use, but I'm not sure about detecting mouse movement.
Espen Harlinn 8-Jan-11 17:32pm
   
5+ Good answer - you may have to use interop, interesting ... service control code: SERVICE_CONTROL_SESSIONCHANGE - process will need to be able to access windows station. Register service handler using RegisterServiceCtrlHandlerEx (SERVICE_CONTROL_SESSIONCHANGE not documented for handlers registered using RegisterServiceCtrlHandler ) - doable, flexible - and probably best done in c or c++
Dalek Dave 9-Jan-11 16:54pm
   
Good Call.
#realJSOP 13-Jan-11 14:42pm
   
He doesn't need to do that - all he has to do is use the Windows API. See my answer to this question.
   
Comments
fjdiewornncalwe 8-Jan-11 15:07pm
   
Nice. This link gives a reasonable vb.net implementation of the logoff process itself. Now all that is needed is how to detect activity from a service and such.
elo..use SESSION TIMEOUT.
u hav to config ur config.xml in asp.net
   
Just develop an application which can logoff the system. Change the name app.exe to app.scr. then set app.scr as screen saver & set time 10 mins.
   
v3
Comments
fjdiewornncalwe 8-Jan-11 13:24pm
   
I just find this to be a horribly impractical solution.
Аslam Iqbal 8-Jan-11 13:47pm
   
Can't u do that Marcus?
fjdiewornncalwe 8-Jan-11 13:56pm
   
Excuse me. It is a really bad idea to do this. A user only has to turn off their screensaver to disable what is obviously an administrative function. Your idea is simplistic and poor. Your 1 vote of my solution is extremely silly. However, feel free to expand on your idea and why you think it is a good one. If you have a legitimate criticism of my answer, feel free to share that as well.
Аslam Iqbal 8-Jan-11 14:02pm
   
Benson didn't mention about security. So I didn't think about that. Your yhought is optimal. But it depends on Besnson's Requirements.
Yusuf 8-Jan-11 14:52pm
   
screen saver app were never invented to replace executable files. You solution is wrong on many levels
Аslam Iqbal 8-Jan-11 15:05pm
   
Screen saver is nothing but an executable file. Just copy a scr file (C:\WINDOWS\system32\ssmarque.scr) & rename it to exe & see it has all properties like an exe file. any more Question see binary code of an exe file & a scr file.
See this article from MSDN. It shows "HOW TO: Automatically Log a User Off from a Web Application"
   
Comments
fjdiewornncalwe 8-Jan-11 15:05pm
   
Sorry Yusuf, but web application logons and system logons are two entirely different things.

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