How to make a complete application?

[math7]

Thanks for replying Han, but I understand more or less well. You mean that when creating an application, something like this happens:
1-I have to create the appdir folder too, not the calculator.
2- When using the AVars and AFiles commands, files with * .hpappvar extension are automatically created, or are not they?
3 - The icon I do understand that it is only saved inside the file folder and already.
4-When are the files with * .hpappvar and * .lib extensions created? What are those * .lib files, the calculator creates them or are they made out of it?

It would be a pleasure that when you have time and you have made applications as good as "Equation Library" and "Graph3D" that I have in my calculator you could put a very small example of how to build a mini application with all those extensions putting the detailed steps to clarify My doubts and maybe the many others that are beginning in the programming of this extraordinary calculator, since the manual does not bring many examples of this !!! Thanks again.