I have pro when i start my game it is a grey box how do i make it something else

This is the 3rd post you've created asking the same question. The mods aren't gonna like this...don't do it!

Do you know the basics of the language? Learn the fundamentals like variables, arrays, functions, pointers...Create some basic programs that do arithmetic, read/write files using I/O before you dive into something like this.

Have you done the lite-c workshops?