Capture SHUTDOWN And LOGOFF Events

Apr 5, 2012

I am trying to capture SHUTDOWN and LOGOFF Events, so that I can be alerted when my process stops. The below code works in detecting these events. I am trying to get it to release the monitoring of the system events after the email has been sent, Being newer to VB, I am not sure how to do this. I copied this code from another google forum.

[Code]...

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Detect Windows Shutdown/Logoff?

May 28, 2009

I have an application that starts from Sub Main and I need to run a sub when the system is about to shut down, restart or logoff so it can save it's settings. I found some code on google:

Imports Microsoft.Win32
Public Sub Main
AddHandler SystemEvents.SessionEnding, AddressOf OnShuttingdown

[code].....

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What i wish to find is a message or the like that I can use to detect between specific 'shutdown' like events, ie: I wish to be able to find the difference between a shutdown, restart, logoff and sleep initiation.

The problem i have found (as displayed below) is using oClosingEvent.CloseReason the return types provide no further information other then the WindowsShutDown constant (the others are obviously irrelevant in this case).

Private Sub frmMain_FormClosing(ByVal sender As Object, ByVal e As System.Windows.Forms.FormClosingEventArgs) Handles Me.FormClosing
Dim oClosingEvent As System.Windows.Forms.FormClosingEventArgs

[Code]....

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VS 2008 Detect Windows Shutdown/Logoff?

Jun 20, 2010

I have an application that starts from Sub Main and I need to run a sub when the system is about to shut down, restart or logoff so it can save it's settings. I found some code on google:

Imports Microsoft.Win32
Public Sub Main
AddHandler SystemEvents.SessionEnding, AddressOf OnShuttingdown

[Code]....

But it doesn't seem to work, Windows shuts down yes but when I re-start the vm and run the app it opens with the old settings, not the ones that I changed before I shut down the vm. Anyone know of a way to do this or to fix the code above, I don't think my OnShuttingdown event is being handled.

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Nov 4, 2008

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Shutdown Function Perform Logoff Windows While Using Windows API?

Jan 10, 2011

I have used the following code to shutdown the system but it will perform logoff windows

Private Const EWX_LogOff = 0
Private Const EWX_SHUTDOWN = 1
Private Const EWX_REBOOT = 2

P[code].....

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I want to listen to events in my windows forms .NET application for the following system wide events :

[Code]...

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Of course, the next step in testing this is to begin to capture "regular" typing habits - ie when browsing, switching between apps, etc.What I can't figure out how to do is capture keyboard input for all applications (excluding the login/welcome screen, alternate desktops, etc. - I have no reason to parse that and there's probably not enough input to analyse anyway)Disclaimer: Yes, I know this comes dangerously close to writing a keylogger which is verboten but if I wanted to do that, I'd write a keyboard driver in C++ - I'm sure it would be far more streamlined and easier to obfuscate than a hulking .Net MSIL assembly. I have no doubt I'll be fending off "That's a keylogger" comments but I've hit a wall and need to ask somewhere.

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Ex:  Dim a As Button

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I am trying to find a way to capture keyboard events with the intent of preventing users from being able to hit Ctrl + Alt + Del while my application is running. I've spent several hours poking around looking for inspiration but only finding unclear and half-baked examples. As such, I was thrilled to stumble across the article: Managing Low-Level Keyboard Hooks in VB .NET written by Paul Kimmel [URL] This article is insightful, comprehensive, well-written, and I thought it was a huge help. One little problem though, the code that was provided did not work, (I knew it was too good to be true!).

Now, Mr. Kimmel seemed very knowledgable and I think that he probably tested his code, so quite likely the problem is something that I'm doing wrong seeing as I am a newbie. As the article suggests I cut and pasted his code into a module in my project (solution I guess is the proper term), and I call the HookKeyboard method from a button on a form, and Presto! Nothing happens. Stepping through this code I see that the second line in HookKeyboard:

[Code]...

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We have separate session SW that allows a person to add money to their accounts. The problem is that if there's an active session, typically due to the individual being logged into one of the above mentioned workstations, I can no longer ensure updates to the DB will be atomic.

I would like to have the money terminal send a log off command to the remote workstation session if it detects a user is currently logged in elsewhere. But I'm not sure if there's an existing API for this.

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I am trying to write a code on auto logoff for an application after certain perioed of time. But not sure how should i start on it. But I got below code, but there is an error (example:

System.Windows.Interop.

System.Windows.Interop is not a member of Windows and System.Windows.Threading is not doesn't contain any public member) and i wonder how should it get fix and merge into my application code

Imports System
Imports System.Collections.Generic
Imports System.Linq

[code]....

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So I am hacking together an app which listens to traffic using SharpPcap library, it reconstructs the packets from sessions using the code from TpcRcon.

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I also had it not working and crashing in sharppcap function because I had omitted one parameter in form delegate- which makes no sense, because form delegate does not deal with packet capture at all and only reacts on "New Packet" event from my "Listener" class (which is only there to notify main form)

My app starts as module main instancing class "Listener". MainForm has it
registered as friend with event and handles even "New Packet"

Main Form:
Private Sub uiListenStart_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btListenStart.Click
aLogger.AddMessage("Started Listening")

[Code]....

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[Code]...

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3. I contain Voice of alphabet in Mp3.When  i Press any button in textbox then its work.

4. Mouse Pointer Change My Own.

5. I click any Object or any thing By mouse its noice clicking sound like Tik Tik Tik.... Question No 3 is very hard to do . but not im possible

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How to block shutdown using vb.net?

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I am making a program that takes a time input from the user or a countdown amount and when that time comes it will shutdown or restart or log off the computer. I know how to make the timing code and everything else but i don't know how to shutdown or restart or log off.

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I've written a program which I propose to give a local club, which sadly may be'attractive' to pirates so I propose to build in some sort of anti-copying feature.My idea is to hide a file in a folder somewhere in the club's laptop, then on program start up I'll check to see if that file exists and if it's not there, which it's unlikely to be on a pirates machine, I'll flag up a message box saying that if they have a legitimate reason to install the program on a different machine they'll have to contact myself.By way of nuisance value, pressing the 'OK' button on the message box will cause the machine running, what I'm assuming is a pirated copy, to shut down.I've been looking at the VB.NET forum and MSDN for ideas as to how to achieve this and the general opinion seems to be:

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
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[code].....

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I've created a shutdown manager with 4 buttons , standby , shutdown , restart and exit.

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I have a fully working application which runs in the background while a user is logged in. What I need the application to do, is disconnect itself from the database, save the users settings and close itself when the user shuts the computer down or logs off.I know how to do those things, the issue I am facing is figuring out how to detect when the computer is logging off or shutting down. I thought about using log off scripts to do this but then it would be impossible to call classes and methods from my application as the log off scripts are not associated with my application at all. Are there any other methods of telling my application when the computer is shutting down and then run some lines of code?

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I'm looking forward to receiving your reply.

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I've been making a program and for it I need to be able to detect shutdown. I've been told to do vbAppWindows etc. but there's a problem. For some reason it says "vbAppWindows is not declared" Does anyone have another way of doing it?Then I've used my.settings throughout the program and it has just started to not work. It wont save anymore.

[Code]...

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Dec 24, 2009

I'm trying to create a way for the User of my application to Log Off, Shutdown, or Restart the PC.

The idea is that User can more quickly access these options from my application and if they choose, force these actions instead of waiting for the OS to respond.

Here's how I'm trying to do it:

CODE:

Log Off works just fine. It's shutdown and restart that doesn't work. From the research that I've done, the Consts seem fine and the function obviously works correctly because Log Off works. I am running the application as an administrator, so that should affect it.

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I included the code I did so far.

Public Class Form1
Private Declare Sub Sleep Lib "kernel32" (ByVal dwmilliseconds As Long)
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[Code].....

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