IOts milla time. jokingly!
1. Do prototypes for functions always have to be in between your header files and the int main function?
2. Does a++ always add 1 to the variable a? How can I add more than just one to a?
it can be written also a+1. To add more just a+2...
3. What do OpenGL and DirectX do exactly? are they software, plug-ins, or downloads? Which do you recommend I use, or is there some better one that I don't know about?
I dont know, try www.howstuffworks.com. Its a great reference i use sometimes.
4. Could someone give me a definition of the word "argument"?
Its the value of the argument corresponding to a formal parameter used within the body of the executing function of a function call.