How can I make a "generator" of the contract (text formation) with a survey (Approximate names of programs inside)?

Question

Programming

What does the double-linked text code look like? Several examples written in C++ vary from site to site. Where can I download the written project, which can be immediately opened in Visual Studio and "connect a survey with the ability to tick the item that will change the text." An example is implemented on the website Freshdoc.ru.