How to write my own download manager using c++?

i want to write my own download manager using c++(qt4) but i have no idea about that so

please suggest me from where should i start if you know any good tutorial or link the please

post it.

i also want to implement the pause/resume and multiple download features also.

i already know that there is a long list of download manager(fdm,idm,wget,flashgot,orbit etc.) but still i want to create my own to understand the working behind them.

-Thanks in advance.

Solution

If you are trying to make production grade I would recommend URDL or Boost.Asio in general.

But if you are tinkering around for fun then consider Byte Ranges and multi-threading for async processing. Still asio would be the best bet for that too.

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