Cool cool, thanks. Will try to make sense of it

Quick question though... it's rather "noobish," I know... but I feel as though it needs to be asked. At least on my part.
CODE
SetColour (5);
std::cout << "This text should be colourful!" << std::endl;
Does SetColour (#); have to be followed with the rest? I was trying to find a way to integrate the topline in, but kinda stared blankly. I guess what I'm asking is if SetColour (#); sitting right above a cout would change that line of cout, and not need the void and whatnot? Mind you, I've no idea what void is, quite yet.

Sorry for being intrusive and, I dunno, Slow I guess.
This is my first day actually coding, and I've been immersing myself a little more than my brain's comprehending at the time. And It is late. :PPP