Screen

Since Clightd 5.0, Screen API exposes 3 different plugins (priority-listed below):

• /org/clightd/clightd/Screen/Xorg
• /org/clightd/clightd/Screen/Wl
• /org/clightd/clightd/Screen/Fb

When calling any of those, their plugin will be used; when calling main object path first available plugin will be used instead given the above priority-listed list.

The API is the same for any of those plugins; but first 2 input parameters ("ss") meaning changes:

Xorg

• $DISPLAY (defaults to ":0")
• $XAUTHORITY (defaults to caller "$HOME/.Xauthority")

Wl

• $WAYLAND_DISPLAY (defaults to "wayland-0")
• $XDG_RUNTIME_DIR (defaults to caller "/run/user/$uid")

Support on wayland requires the compositor to implement wlr-screencopy-unstable-v1 protocol.

Fb

• framebuffer device (if empty defaults to first graphics device it finds through udev)
• unused