RemoveChangeRemoveChange — removes an event handler from a point change event.
RemoveChange (chfn)
chfnA change function, as created by OnChange.
A list of the following items:
(classfn_namefn_args...)
Where fn_name and
fn_args are the name and arguments of the removed
function.
This method is a wrapper for the remove_change function. In addition to
applying that function, it removes this change from the class's
_ChangeFunctions list. For more information, please refer
to Section 5.3, “Handling Events”.