Idle event in VB

Hi bluers,

You can try this to check the time difference:

Dim StartTime As Date
Dim StopTime As Date

StartTime = Now()

StopTime = StartTime + DateValue("00:05:00") 'hh:mm:ss , here add 5 minutes

In a Sub or Timer

Call CheckValue

Private Sub CheckValue
     DoEvents
     If Now > StopTime Then
          'Prompt Login Window

     End If
End Sub

'Hope will help.

Here is the code to read/write from an INI file:

http://www.vbcode.com/asp/showsn.asp?theID=1404

'Hope will help.

Hi bluers,

Sorry for the first post as it refer to compare Time values. By the way, the concept are similar:

Private Sub CheckValue(byVal myValue)
    DoEvents
    If myValueFromINI <> myValue Then
         'Prompt Login Window

    End If
End Sub

regards.

Hi ryancys,

But where should i put the timer object because my application is a MDI one ?

When you say idle time, do you mean when the user fails to move the mouse or press a key within a specified timeframe? If so then this is a bit more complicated.

Hi TimCottee,

Yes, thats what I mean and the timeframe comes from INI files ?

You can try the GetTickCount API in order to catch a time in milisecond between a certain processes.

You're trying to write a 'quiesce' function right? Ie if the user hasn't touched their app (mouse/keyboard) and it hasn't performed any processing for a certain amount of time, it requires a logon to use again?

The best way to do this is to use the GetLastInputInfo API call. This returns the time of the last input event. Unfortunately it's win2K only. Boo.

To do this for all platforms you need to hook the mouse and keyboard queues and handle messages as they come in.

I'll try and rustle up a code sample for you if you like

Ok, now I have done this before and it requires a bit of thinking about. You need to hook the windows keyboard and mouse messages and determine whether these are taking place inside the appropriate timeframe. The best way I have found of doing this is the vbalhook dll from http://vbaccelerator.com/codelib/hook/vbalhook.htm this will allow you to add a timer or if you want (and I did) use the ssubtmr timer also from vbaccelerator. You can then monitor the keyboard and mouse in the callback function(s) and reset the timer as necessary. When the timer event fires it is because no message has been processed within its interval and your form can be displayed.

See this download in which I logoff an application after some time. You can reuse it to re-display the logon form instead of logging out.

http://www.universalthread.com/wconnect/wc.dll?FournierTransformation~2,54,Forum=21,28,1474

Hi bluers,
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