How can the font be changed?

Question

css

Hello!
Is it possible to change / create your own font in this way when you typed the letter W on the screen and the computer recognized this letter as G

Answer 1

Interesting answers. It's possible.
To do this, you need to create your own font, in which you will change the drawings of the letters of their corresponding codes. Then install this font in the system or in the desired application. When you press one key, the screen will display a different character that you have set in your font.

Answer 2

Can.

Answer 3

It is forbidden

Answer 4

Everything can be done. Define purpose and limits. The question sounds too childish.
You can write a virus to track this good. Sounds like 'can you lick the sun'.