Image Screen Grab to integrate with our PHP CRM

Hi, First of all please ready carefully what we are looking for then place a bid on this project: We ARE NOT going to take screenshots of webpages, we need screenshots of all things run on personnels monitors. We just need the script, we will do the rest ourself, we need a script which can take snapshots and installable on Linux We have a CRM by PHP We need to a scrip to grab screenshots from our staff's monitors without installing any software on any computers. When they login in to their CRM's this script will take screenshots and put them in a folder. OUR SERVER IS LINUX and this script must run on Linux server We need control what our personal are doing, so this must grabs every thing on their ------------monitors, I mean that WE ARE NOT LOOKING FOR TAKE SCREENSHOTS OF WEBPAGES If you can provide the script, it would be OK, we can do the rest Please let me know if there is any question or issue. Kind regards Zhan