screenkey

A screencast tool to display keys pressed. More information: https://www.thregr.org/~wavexx/software/screenkey/.

• Display keys which are currently being pressed on the screen:
  screenkey
• Display keys and mouse buttons which are currently being pressed on the screen:
  screenkey --mouse
• Launch the settings menu of screenkey:
  screenkey --show-settings
• Launch screenkey at a specific position:
  screenkey --position {{top|center|bottom|fixed}}
• Change the format of the key modifiers displayed on screen:
  screenkey --mods-mode {{normal|emacs|mac|win|tux}}
• Change the appearance of screenkey:
  screenkey --bg-color "{{#a1b2c3}}" --font {{Hack}} --font-color {{yellow}} --opacity {{0.8}}
• Drag and select a window on screen to display screenkey:
  screenkey --position fixed --geometry {{$(slop -n -f '%g')}}