[Dev-C++] Class definition across multiple files and general wrapper class design

[Scott S. <age...@co...>]

In learning OpenGL, I have decided to write my own small wrapper class 
that provides me basic funcitons like setting up a window and so forth 
to speed up the learning process. I have begun to write the wrapper 
class, but have several questions:

1. Can I span the class definition across multiple files, or must I 
stich to the decleration in one .h file and the definition  in a .cpp file?
2. I have heard some people say you should only define one function per 
.cpp file in a library due to size issues. Is this true, and if so, is 
it worth the added effort?
3. What is the level of documentation required for a basic wrapper 
class? I stick to a header at the top of each file, function headers, 
and in code comments. Will it be necessary to include any external 
documentation at this point?
4. Should I just use several functions in a namespace instead of a class 
to simplify the development process?
5. Are there any long term pros/cons associated with maintanence of a 
class versus functions in a namespace?

Thank you in advanced for any advice you may have and answers to my 
questions. I have never done anything like this before, and want to make 
sure I do it correctly.

-- 
--Scott Simontis--