check if handler exist before using it
Mark Wieder
mwieder at ahsoftware.net
Fri Nov 9 20:00:18 EST 2007
Richard-
> But I must admit that the circumstances in which such a mechanism was
> useful have been very rare for me. How often do you need to call a
> handler without knowing whether it's present?
I actually end up doing this quite often: one behavior if a secondary stack
is present, another behavior if it isn't. That allows me to add substacks as
optional components and not throw errors if they aren't in a given
distribution.
--
Mark Wieder
mwieder at ahsoftware.net
More information about the use-livecode
mailing list