So lately I started thinking about and developing (using C language, yes I know it's not the best choice but that's what I "know" how to use) a tool for obtaining info from Warmane's Trade tool (such as trade items and cost in coins) and post-processing it in any way.
Right now I have code for reading and analyzing a file, but I wanted to integrate a way of getting such data from the Trade tool automatically and storing it in said file. The problem is I have absolutely zero clue on how to do that. I talked to a friend of mine and it seems to be rather complex in C. He mentioned that an external program could be integrated by executing it (or commanding the execution) from my C piece of code.
Can anyone help with this bit (C website data scrapping) or with a nice external tool for automating that?