Replace Inputbox.....with....HtmlDialog

Hello everyone, you can help me, I would like to replace a simple Inputbox in the rb file,
with an HtmlDialog, I read The Ruby Api online manual, I don’t understand much,
I attach both the txt/html file, rb …etc…

Many thanks for interested


Pil_1_piano.rb (1.1 KB)
File_txt_html.txt (2.2 KB)