For this to work i need a webserver where it is possible to run a webservice (the receiving end of the AC application). The app will make a screenshot in every 30 second (or you can choose how often, but more pictures is equal with more data to send and slower performance of the client, of course).
The pictures will be sent in case one of these happens:
1., the OS starts to shut down
2., the user push the stop button, or try to close the application in any other way
3., after every 10 minutes
The sent pictures would be saved into a database with the nickname and the date when it is created (the servers date and time would be used because it pervent the user from manipulating with his/her machines time settings).
This last one has to be considered thou, because it could cause high net traffic and slows down the game.
If you have any questions, please feel free to ask.