.net - How To Know Time For Which System Is Idle
Nov 26, 2011
I'm making an application in which I'm implementing auto-monitor turn off when system is idle, i.e. when user is not interacting with the system. [URL]it does provides the componenent to know when system is idle. But when I include:
Public WM_SYSCOMMAND As Integer = &H112
Public SC_MONITORPOWER As Integer = &Hf170
<DllImport("user32.dll")> _
[code]....
It shows this error: Cross-thread operation not valid: Control 'Form1' accessed from a thread other than the thread it was created on.
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Apr 8, 2009
I need to get the sytem idle time.It must be developed in vc++ and the code should not use hooks is there any possible way of getting SystemIdleTime from taskmanager
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Dec 7, 2011
I would like to get the idle time of my winforms application (not the system). This will enable me to update the database to show which users are online/offline amongst other things.
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Jun 9, 2011
can i make idle system for my application...so when user login system & idle for 30 minutes, system automaticly logoff...
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Feb 11, 2011
Windows resets the IDLE time every time the user touches the keyboard or the mouse. My application needs to reset the IDLE time at specific moments, but how to do this programmatically.
The following does NOT reset the IDLE time using VB, C# or QT4.
- Programmatic mouse movement / click.
- Programmatic keystroke.
Somehow Windows knows these actions are simulated. How can I reset the IDLE time?
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Apr 20, 2009
I'm developing an Ajax-based application which makes heavy use of server calls to a WCF layer that communicates with a DB.Whenever I effect from the client (an ASP.NET page) many calls within a short span of time to the underlying WCF services, the system hangs and goes into a idle state.
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Oct 13, 2011
I am in the process of developing an application for one of my clients. I am not going into the details of the applications, but brief facts of the same. The application is divided into two tiers (actually three, but the third tier is the database (SQL SERVER) so that is not included). The top tier (or first tier) is a web application (ASP.NET) where the users shall log into the system and use the application. This web application will also access the Database directly. One important activity the users shall do is uploading excel files with various information to the server. Web Application once the upload is successful shall enter the details in the in Database about the upload along with an ID and save the excel file at a location in the server.The Second tier is a VB.NET Application which will run in the server. The application will connect the database and retrieve the list of excel file uploaded by the web application and start processing one excel file after another based on ID. The processing that will be done is very simple: read the excel file, check for certain parameters, do some calculations and insert the whole details into the database. (say some 100 records per excel file)
The server in which the VB.NET Application (Second tier) runs is hosting a serious of services and application which shall run simultaneously including the Database (SQLSERVER), web server. The Database also host tables and database for various other applications. In order to help in the smooth functioning of the system, it has been decided that the VB.NET shall do the processing activity only when the server is idle (including CPU usage is idle). I have searched the Net and found API to get the system Idle status. But the real question is how to pause the processing activity when the system switch from idle mode and continue when it is again back to idle mode. Please note that I am talking about system being idle because no other application is executing any activity except the VB.NET Application.
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Mar 31, 2009
way to reset a timer if there is form activity so it will not expire until the mouse has been at rest for 2 minutes.
This timer runs for 120000 milliseconds usually, and sometimes it lapses (and logs you out) when you are in the middle of editing. Sometimes 2 minutes is not enough time to do all the edits. So I wish to reset the remaining interval as long as there is mouse activity. But I am not sure the best method to do this?
I have found the mousemove event but to me this seems like it's going to fire way too often and tax the resources if I preform operations here, maybe not? Is there a better way to get this functionality?
I want this functionality so that if someone starts editing on the UI and walks off/gets distracted it will lock the grids back so that some other user can't come dork things up.
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Dec 28, 2009
My main form has a timer that monitors idle time in my app: no mouse movements and no clicks.If the idle time reached 3 seconds, in *this example below*, then I want to show frmRestart, which will call the UnloadAllFormsExcept(Me) function from frmMain.When three idle seconds are reached, frmRepeat starts to show on the screen but never does!! I just see the border of the form and nothing else. My mouse goes into "thinking" mode forever.[code]
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Dec 5, 2011
I wanna know how to make a Idle event that sets a timer to determine if my system idles for a minute and pop outs a form and stop the timer if that form loads?
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Nov 13, 2010
Basically i'm trying making a task manager program for myself. I want to know how I can display a message box and or play a sound when system time = time displayed in listview. I have used a dropdown box for the user to select which option they would like to select - sound or message box to popup. The data for the task will be stored in a listview box. I want it so that when the date and the time is = to the date and time set for the reminder the action will follow.Here is my code so far:
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Dim notext As String = ""
If TextBox1.Text = notext Then[code]....
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Jan 24, 2012
I'm using
Days = Dat2.Subtract(Dat1).Days
where
Dat2 = today
Dat1 = installed date
to trace the days of a program installed in user's computer.However, the user can changes the system time of his computer to a advancing date. How can I get a SNTP time from internet to solve this problem?
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Mar 19, 2012
When I run my app at first its keeps time accurately for the first minute or so there after it starts loosing seconds, and by the end of the day its minutes behind.I've created a class called ServerTimeTimer that has a timers.timer object that elapses every second and adds a second to a dateTime variable, and a property to retrieve the date time.[code]
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Nov 24, 2009
The Now() function in VB.NET returns date and time which is different from the system time that I see on the right-bottom on the notification bar. It is 15 hours slower than the system time. Has anyone ever met this problem? I'm using .NET 2.0.
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Sep 16, 2010
Can anyone tell me how I could make my program (running in background) do something when when Windows becomes active after being idle?
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Jan 21, 2009
Is it possible to capture when a machine is idle? I realize that a machine is never really idle, but screen savers work and power management schemes work... So, there must be a way to create an application to capture the same thing, correct?
Has any tried this or has any success capturing when a machine is idling?
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Jul 29, 2009
Is there a way in which I can detect how long someone has been idle using a form (ie. Not clicking or entering any information into any fields/textboxes). Or would I have to implement a timer which counts this and reset it in the event handler for any entry?
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May 4, 2009
I have an MDI form in VB.nEt where I have to find, if the application remains idle for 20 mins, I got to log off the logged in user. On doing RnD, I found a class that helps us do the same :- http://blog.perfectapi.com/2008/05/detecting-idle-state-in-winforms-apps/
I saved that class in my applicaiton. In my mdi form's Form Load created an instance of that class. Now I don't know how to move ahead i.e. how to find that 20 min lastActivity duration. I belive I got to trap some evcent in my mdi form and find the value of lastActivity and if that is >= 20, then logoff. But which event to trap and how, I have no clue. In the events for the from also, I didn't found any useful.
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Mar 30, 2010
Adding How would you detect if the user is using the computer? I want a program to detect if the user is using the computer (i.e. mouse and keyboard movements), and if the user doesn't type or move the mouse for a specific amount of time, it executes a command. Normally I would do this with the Application.Idle, but I want it to be detected throughout the system. Any starters?
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Jun 22, 2009
I've build a vb.net windows service which does nothing but ping a wcf webservice and handles sending a maintenance request to this same webservice at night time. It does both tasks using a timer event. If the service does nothing but these two things it says at startup that it's shutting down cause of being idle. The windows service thread needs something todo.[code]....
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Mar 8, 2012
How does one check to see if the system time is equal or not equal to a specific time? So, say I want to perform an action if your system time is between 6pm and 6am. Or something similar?
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Mar 9, 2011
I have a small problem with process priorities (Win Server 2003 Standard, 8 Core, 16GB RAM). My VB.NET 2005 program starts a process like this:
Dim WithEvents proc As New Process
Sub Main()
proc.StartInfo.FileName = "blastx.exe"[code].....
In this case, blastx.exe runs on 4 cores.I would expect that my started process is idle and has 0% CPU usage while the system is under full load (I simulate this with prime95, 8 worker threads) and only runs if there are free resources. But it generates 25% cpu load and prime95 only 75% instead of expected 0%/100%. In the task manager, I can see that my process has the lowest priority and prime95 has the normal priority.
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Jul 24, 2009
I want to get the GMT time of the system. how to find it?
I tried in 2 ways.here below i am writing the the way through which i tried
TimeZone.CurrentTimeZone.GetUtcOffset(Date.Now).To String()
DateTime.Now.ToString("zzz")
I tested the above functions by changing the TimeZones of my system clock. in these both ways i got the GMT time.but here i am facing once problem.its giving correct GMT time for some Time zones.but not in many of the time zones.here below i am mentioning some of those zones fo which GMT time not came correctly.
(GMT-09:00) Alaska
(GMT-08:00) Pacific Time
(GMT-07:00) Chihuahua, La Paz, Mazatlan-New
(GMT-07:00) Chihuahua, La Paz, Mazatlan-Old
[Code]......
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Jan 1, 2010
I am trying to change the PC's System Date/Time using the following code. Everything works but the Hour. The Hour seems to change to 9:00 AM no matter what value st.hour is set to.
I have also tried:
<DllImport("kernel32.dll", setLastError:=True)> _
Public Shared Function SetSystemTime(ByRef theDateTime As SYSTEMTIME) As Boolean
End Function
[Code].....
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Feb 6, 2009
Im making a scheduling program and I have three columns in my DB AgentName, Type, and DueBack. My DueBack Column will have a value of like 10:30 PM. Im needing to see if the Column value is the same as the System Time then it will delete the value from the DB and update the DGV> I know hwo to do everything else besides Compare and Delete.
[Code]...
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May 6, 2009
I am trying to set up an "AT" job to export some registry keys on a remote computer, the problem is that DOS command requires a time to run. I want to get the system time of the remote computer so i can schedule it to run 1 minute from the time i send the command.
Is there any way to get the system time of a remote computer with VB.Net code?
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Jan 15, 2012
Anyone here who knows how to convert system month,Day,Hour,Minutes,Seconds each into number format like [code]
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Jan 15, 2012
Im trying to put current system time in YYMMDD format but having problem with day function. is Day() which returned day of month in VB6 not available in VB.Net? If I want to get the current day of month, how would I do that?
Dim dt As Date
Dim dtString As String
dtString = Year(now()) + Month(now()) + Day(now())
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Jul 30, 2010
It is possible to create a real-time application where 2 or more pc will operate on it, for e.g, a cinema ticketing system, when a seat is occupied, all the other machine will be updated in realtime accordingly.
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Mar 11, 2009
How do you set the system Time/Date programatically?
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