Is it possible to integrate a Browser engine to a custom Browser interface?

Recently I was reading an article about "Browser Internals" and suddenly this idea struck me.

What if I create my own Browser?

So, I have two questions with me.

Question 1:

Is it possible to integrate an Open source Web Engine like "Servo" or "WebKit" to my custom Browser UI interface created using QtCreator or Visual Studio?

Question 2:

Is there any other components that needs to be inserted between the UI created using C++(QtCreator) and Servo or WebKit?

Note: I am a complete beginner to this field and these questions were asked in a curiosity to learn internal stuff. Pardon if the Questions were not standard.

Thanks :)