Console to interface

[PAragonxd]

First off, I'm a C++ novice.

I've been wondering what the difference is (in the coding) between programs that run in the console, and programs that have a user interface. For example, a calculating program in the console that prompts for a number, then an operation, then another number, versus the Windows Calculator, which has a simple interface for ease. I assume they do the same things behind the scenes, and figured that they were coded similarly.

How does a program go from running in the console to being controlled by a user interface?

[valaris]

At least in c# its the same thing primarily. Most of the UI elements are triggered by events and you just react to those, instead of waiting for a user input in a console program at say a menu. The actual algorithms to process things are pretty close in both console and gui apps, but the way of displaying them back is different.