title: c++ post request command winsock
body: <p>I <strong>know c++ windows socket and i can connect to HTTP server.</strong>
  *<em>why at every command sent to the server i must use "/r/n" at the end?</em>*
  <strong>I want to fill forms (boxes) in HTTP site.</strong>
  I heard u can do this with post request, how to do that in c++ using windows sockets?
  What command should i send?
  What is get? post? 
  I don't want to do that in lib curl and things like that.
  What command i need to send?
  Should i send it in one time or using send function multiply times?</p>