Libraries!!

How can I know what all that header files that come with my Dev-C++ and BorlandC compilers do if they come without a txt which explains them???

BorlandC has dozens of libraries (i supposed unofficial ones, but still great juicy libraries!!) but I dont know what functions they have.

Can somebody give me a hand??

Is there a website that explains the functions of the libraries or is there anyway to know what they do just by opening the header file and looking trough it???

Yes. Open the header file and look through it. Some header files give a one or two sentence comment above the function prototype, others don't. When you see a prototype that looks interesting, do a google search with the name of the proto, the header, and the compiler name and see what you come up with.