2 -- @author Julien Danjou <julien@danjou.info>
3 -- @copyright 2008-2009 Julien Danjou
7 -- @field button The mouse button number, or 0 for any button.
8 -- @field modifiers The modifier key table that should be pressed while the
14 -- @param name A signal name.
15 -- @param func A function to call when the signal is emited.
20 -- @param name A signal name.
21 -- @param func A function to remove.
22 -- @name remove_signal
26 -- @param name A signal name.
27 -- @param ... Various arguments, optional.