   how does fraps work?
  i guess a lot of you gamers know Fraps.http://www.fraps.com/it's basically an fps measuring tool, that displays the fps over the screen of any OpenGL or D3D application.now i wonder, how is this possible, how does it detect the window where 3D is happening and how can it write into that window?thank you!   
  Check the articles on this page here.They were written mainly becuase, many people were asking what you are now.Hope that helps,Dave   