The requirement is to develop an activex or control or toolbar that can be installed on any browser such as IE, Firefox etc. These driver(s) should track all applications trying to grab the screen details (Take a screen shot) and whenever any application is trying to grab the screen, it should prevent it.
It should be able to intercept all possible ways of capturing screen including "PrintScreen" button, windows SDK APIs (like BitBlt, StretchBlt etc), Standard tools like SnagIt, Camtesia, ZDSoft recorder etc. It should be able to intercept all application running both in normal user's login as well as any service running with Local System authentication.
There are various different ways of preventing screen capture in different situations e.g. For <Print Screen> key, one can put a keyboard hook or use a HotKey. For preventing tools like Camtasia, one can inject DLL in every process and hook system API's like BitBlt to prevent screen capture.
There is a good article about how to capture the screen with 3 different methods:
[url removed, login to view]
The proposed solution should prevent all these ways of capturing screen shot.
• Complete source code with Visual Studio project files and all other related files for creating the binary.
• Elaborate inline documentation within the source code.
• 3 Months warranty for fixing any bugs free of cost from the time of delivery.
• 3 Months email/telephonic support from the time of delivery for clarifying any related technical queries.