I want a simple input box that pops up when i declare it. I have googled but cannot find anything that is simple enough for me. Essentially my question is how would one create an input box in the header file and then call it main whenever i need it?
What is an input box? Like a console? You already have a console, use the iostream library.
Are you looking for a GUI? There are lots of options for that... Try Win32, MFC, Qt, SFML, Visual Basic and create an Edit/Box. It's not as simple as including a header (you'll need to do some code too).