Programming Custom App

[eried]

(02-11-2020 12:26 PM)Tonny Wrote:  Is this possible to program on a HP Prime ?

Yes, of course.

The simplest way would not work as you describe, but it will require entering something and then pressing/tapping something (using INPUT command). A more complex approach would work as you demo in that video, but it would need some more work (listening keypresses and drawing on the screen).