g-signal-handler-find (instance signal-id)

instance -- a g-object instance owning the signal handler to be found
signal-id -- an unsigned integer with a signal the handler has to be connected to

A valid non-0 signal handler ID of type :ulong for a successful match.

Finds the first signal handler that matches the given signal-id. If no handler was found, 0 is returned. In the Lisp implementation only the match type :id of the g-signal-match-type flags is implemented.