Windows user logon/logoff triggering a wcf service method

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I've been searching on google, codeplex, codeproject, stackoverflow, dream.in.code... nothing seems to be coming up.

My final result for this project is to have a service that is running in a computer lab. As soon as a user logs on, the service running will send the user information, the computer name and a 'logged in' bool to a server. The server is only keeping the 'logged in' status for that computer name, but using the user information to see if it has any messages for that category of user. Then, when the user logs off, the service sends the computer name and a 'logged off' bool to the server.

I don't have a lot of experience with WCF or coding for Windows events, so I'm lost when it comes to getting a part of the service to trigger with a user logon/logoff.

I can get all the information that I need if I use a windows form and trigger the data collection with a button click, but that doesn't help when using it as a wcf.

So, does anyone have any advice as to how to get the method to run when the user logs in or logs out? Thanks in advance! This hunt for a needle in a haystack is making my head spin :-)

Posted 26-Dec-11 4:08am

AngieLeigh

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#realJSOP · Accepted Answer · 2011-12-26T04:12:00

Solution 1

Write a Windows service that lives on the server. All it does is listen for client connections. When it receives one, it sends back any data for that user that is pending.

Write a SECOND windows service that lives on a given client's machine. This service will notify the server that the user logged in, and will receive the data that the server sends back (if any), and stores it in a local data file.

Write a system tray application that talks to the local client service and displays notifications received from the server.

Go forth, and code.

Posted 26-Dec-11 4:12am

#realJSOP

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AngieLeigh 26-Dec-11 10:17am

Thanks for the quick reply! I already have those set up :-)
What I'm stuck on is getting the local client service to tell the server that the user has logged in. I know there has to be some simple way to do it, but like always, I love over complicating things and then the blonde hair kicks in and I get confused haha ;-)

#realJSOP 26-Dec-11 12:38pm

You want to capture the Logon/Logoff WMI Win32_LogonSession events.

AngieLeigh 27-Dec-11 8:36am

Thanks John! :-)