C# - Who's online list? API?
<p>What's going on, I was just sitting here thinking of more ideas for my app and it jumped into my head "Online user list" is it possible to get a list some how, some way of all online users? my app already uses HWID and serial key to authorize so I'm guessing that on login and form close have it run a mySQL query to my server where their username / serial key is located and create a column called "online", then on form load have it set the value to "1" then on form exit set it to "0".</p>

<p>So then I can make a php file and use client.download and then split it at each line to read the list. </p>

<p>But the above idea sounds like a hassle and a little more then I need to do, does anyone have a possible simpler way of doing this? like maybe a link to a API for this or something of such.</p>
