How to make a watermark in c ++ in the form of enumeration of characters a la brut?

Question

C++ / C#

I want to make a watermark in the cheat in the form of a brute
https://jsfiddle.net/oe57g58m/6/ like this (it's on js, but I need c++)
But I don't know c++ well

Answer 1

Depends on the terminal emulator.
Somewhere \b will work
, someone will need to write via write(STDOUT_FILENO,) something like KEY_BACKSPACE