Originally from the Retropie Project:
https://github.com/RetroPie/RetroPie-Setup/blob/master/scriptmodules/admin/joy2key/osk.py
Requirements:
Python 3.5 or newer
Python3 urwid module
In ArkOS, Python 3.7 is already included. To install the urwid module, do
sudo apt -y update && sudo apt -y -t eoan install python3-urwid
To run this from within a ssh terminal, just make sure osk.py is executable chmod 755 osk.py, then execute it. You can also call it with python3 (ex. python3 osk.py)
To run this so it outputs on a builtin screen, you need to add 2>&1 > /dev/tty1 to the end of the execution line for it. (ex. osk.py 2>&1 > /dev/tty1)
To use this directly on your device, you will need a keyboard emulator such as gptokeyb or oga_controls. gptokeyb is recommended as it is more up-to-date.
commandline switch options:
--backtitle "Backtitle" (Change the background title to some other text. Default is ArkOS)
--inputbox "inputbox" (Add a title to the input box itself. This switch is not needed as it's assumed the text added after the osk.py executable is the title of the inputbox)
--minchars "number" (Require the user to enter a minimum number of characters before accepting the input)