XVI. Events and Callbacks

Table of Contents
add_set_function -- sets an expression to be evaluated when a given symbol changes value.
flush_events -- handles all pending events, then exits.
next_event, next_event_nb --  wait for an event and call the event handling function.
remove_set_function --  removes a set function from a symbol.
when_set_fns -- returns all functions set for a symbol.

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