Retrieving the date/time when any user last turned on the Computer

GTDriver

I would like to know if there is function in VB.NET that returns the date and
time someone last turned on/off the computer? I'm more interested in knowing
this on a non-networked computer. Maybe there is already an .exe in the
windows operating system that performs this task.

How can I get the above requested info?

--
Sincerely,

Keith

Nov 21 '05 #1

Subscribe Reply

1287

Alex Clark

Hi Keith,

A while back I wrote a small uptime app which allowed me to enter the name
of a computer on my network and request it's uptime. It did this by
enumerating the processes on the target machine until it found the SYSTEM
process, and then using it's StartTime property to determine how long the
system had been running. Take a look at the Process object for more
details, as it's even simpler if all you want is the local system's uptime.

Cheers,
Alex Clark

Nov 21 '05 #2

Jay B. Harlow [MVP - Outlook]

Keith,
The "System Up Time" performance counter has the "time elapsed since the
computer was started", you can use something like to retrieve its value:

Dim counter As New PerformanceCoun ter("System", "System Up Time")
Dim seconds As Double = counter.NextVal ue()
seconds = counter.NextVal ue()

Dim startTime As DateTime = DateTime.Now.Ad dSeconds(-seconds)

Note the two calls to NextValue are needed, due to the way
PerformanceCoun ter works.

I was thinking Environment.Tic kCount would be an alternative, however its
value is limited to 24.9 hours...

I'm not sure if there is a "better" Win32 API, as the GetTickCount API
references the "System Up Time" counter...

Not sure if the above would be supported on Windows 98.

Hope this helps
Jay
"GTDriver" <GT******@discu ssions.microsof t.com> wrote in message
news:56******** *************** ***********@mic rosoft.com...

I would like to know if there is function in VB.NET that returns the date
and
time someone last turned on/off the computer? I'm more interested in
knowing
this on a non-networked computer. Maybe there is already an .exe in the
windows operating system that performs this task.

How can I get the above requested info?

--
Sincerely,

Keith

Nov 21 '05 #3

Similar topics

4840

validation of date and set focus problem

by: MickG | last post by:

Hi, I am trying to validate these values, this seems to work fine for the phone number and name but I am trying to get the program to fail to submit and set the focus on the date when 2006 is selected and submitted. Thanks in advance for any help.

Javascript

1245

Question: Universal date time

by: Manny Chohan | last post by:

Guys, I have intranet application which our users use in offices all over the world. How can i retrieve the date and time on their pc and display it on the screen no matter what country they are in? Is this possible in .Net? Thanks

ASP.NET

3218

Managing files by Create time/date

by: Bob Achgill | last post by:

I would like to use the timestamp on files to manage the currency of support files for my VB windows application. In this case I would only put the timestamp of the file in the management database and not the file itself. To do this I will need to have a File class property for Create time and date that will let me "set" the Create time and date of the file to my own chooseing. The VB file class does not appear to have the ability

Visual Basic .NET

2589

ASP.Net [2.0] - Converting a date to a new format...

by: Rob Meade | last post by:

Hi all, Ok - I've come from a 1.1 background - and previously I've never had any problem with doing this: Response.Write (Session("MyDate").ToString("dd/MM/yyyy")) So, I might get this for example: 21/05/2006

ASP.NET

3216

Is it possible to submit two forms at a time

by: mosesdinakaran | last post by:

Hi All, I need a small clarification in submitting the forms, Ur suggestions please. In a page I have two form and also two submit butons. (ie)

PHP

1718

Novice looking for advice (date comparison).

by: Mo | last post by:

After a little PHP education, my first project (to get my feet wet) is making an employee time-tracking program for our small business. *** ANY SUGGESTION, THOUGHTS, OR ADVICE WOULD BE WARMLY WELCOMED *** I'm in my planning stage, and here's my hurdle: On the time report, we want to see EVERY date under each employee, and the string "Absent" for the dates on which the user has no punch times. (It would also be nice to include day-names...

PHP

2084

Overriding a Date/Time stamp, and then Resetting it

by: 6afraidbecause789 | last post by:

Hi - I am using a Date/Time Picker popup form for users to choose a a date and time for use on a separate entry form. The date/time on the entry form is actually entered automatically as a date/time stamp when a user enters a record. So, the popup form is only necessary when a user needs to change the date/time. To make this more user-friendly...there will be times when a user will be away from the computer, and therefore, will have to...

Microsoft Access / VBA

4446

Date Comparison and Manipulation Functions?

by: W. eWatson | last post by:

Are there some date and time comparison functions that would compare, say, Is 10/05/05 later than 09/22/02? (or 02/09/22 format, yy/mm/dd) Is 02/11/07 the same as 02/11/07? Is 14:05:18 after 22:02:51? (24 hour day is fine) How about the date after 02/28/04 is 02/29/04, or the date after 09/30/08 is 10/01/08?

Python

8256

What is ONU?

by: marktang | last post by:

ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look ! Part I. Meaning of...

General

8694

Problem With Comparison Operator <=> in G++

by: Oralloy | last post by:

Hello folks, I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>". The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed. This is as boiled down as I can make it. Here is my compilation command: g++-12 -std=c++20 -Wnarrowing bit_field.cpp Here is the code in...

C / C++

8356

The easy way to turn off automatic updates for Windows 10/11

by: Hystou | last post by:

Overview: Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...

Windows Server

6118

Access Europe - Using VBA to create a class based on a table - Wed 1 May

by: isladogs | last post by:

The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM). In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules. He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms. Adolph will...

Microsoft Access / VBA

5570

Couldn’t get equations in html when convert word .docx file to html file in C#.

by: conductexam | last post by:

I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one. At the time of converting from word file to html my equations which are in the word document file was convert into image. Globals.ThisAddIn.Application.ActiveDocument.Select();...

C# / C Sharp

4089

Trying to create a lan-to-lan vpn between two differents networks

by: TSSRALBI | last post by:

Hello I'm a network technician in training and I need your help. I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs. The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols. I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...

Networking - Hardware / Configuration

4193

Windows Forms - .Net 8.0

by: adsilva | last post by:

A Windows Forms form does not have the event Unload, like VB6. What one acts like?

Visual Basic .NET

1803

How to add payments to a PHP MySQL app.

by: muto222 | last post by:

How can i add a mobile payment intergratation into php mysql website.

PHP

1500

Comprehensive Guide to Website Development in Toronto: Expert Insights from BSMN Consultancy

by: bsmnconsultancy | last post by:

In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...

General