screenkey 命令

常用示例

说明

screenkey is a screencast tool that displays pressed keys as an overlay on screen, making keyboard input visible to viewers during screencasts, tutorials, and live demonstrations. It captures all keystrokes system-wide and renders them in a customizable floating window. The display supports multiple modifier key formats (Emacs, Mac, Windows style), configurable positioning, custom fonts and colors, and adjustable opacity. Mouse button clicks can also be shown alongside keyboard input. The overlay window can be placed at fixed screen positions or use custom geometry. A settings GUI is available via --show-settings for interactive configuration. The tool integrates with X11 and runs as a background process, showing keys as they are pressed and fading them after a configurable timeout.

参数

-M, --mouse

Display mouse button clicks

--show-settings

Launch the settings menu

-p, --position POSITION

Set display position (top, center, bottom, fixed)

-g, --geometry GEOMETRY

Set window geometry (for fixed position)

--mods-mode MODE

Set modifier key display format (normal, emacs, mac, win, tux)

--bg-color COLOR

Set background color (hex format)

-f, --font FONT

Set display font

--font-color COLOR

Set font color

--opacity VALUE

Set window opacity (0.0 to 1.0)

-t, --timeout SECONDS

Time to display each key

--key-mode MODE

Set key display mode (composed, translated, raw, keysyms)

--no-systray

Do not show system tray icon

-d, --debug

Enable debug output