Listen for messages in FrontScripts

Todd Geist todd at geistinteractive.com
Tue Jan 3 15:30:21 EST 2012


Thanks Pete, That is where I began :-)

On Tue, Jan 3, 2012 at 12:22 PM, Pete <pete at mollysrevenge.com> wrote:

> I think it's time to refer to the message path bible - Richard Gaskin's
> great article at
> http://www.fourthworld.com/embassy/articles/revolution_message_path.html
> Pete
>
> On Tue, Jan 3, 2012 at 12:01 PM, Todd Geist <todd at geistinteractive.com
> >wrote:
>
> > On Tue, Jan 3, 2012 at 10:09 AM, Bob Sneidar <bobs at twft.com> wrote:
> >
> > > If I am not mistaken, sent or dispatched messages are always sent to
> the
> > > card if another target is not specified,
> >
> >
> > hmm, Not what I see
> >
> > Send, dispatch, and call use the current object as the target if none is
> > specified. It would only be the card if the card was the object sending
> the
> > command. Throw this in a button,
> >
> > *on* mouseUp
> >
> >   *send* test
> >
> > *end* mouseUp
> >
> >
> > *on* test
> >
> >   *put* the target
> >
> > *end* test
> >
> >
> > When you click the button you will see that the message is handled by the
> > object.
> >
> >
> > If you send a message using *Any* form (send, dispatch or call) and do
> not
> > specify a target, then the object that is sending (or  calling or
> > dispatching)  the message is the target.  Of course a front script is
> > inserted before the target and can handle the message, BUT it is not "the
> > target".
> >
> >
> > Here is my current understanding of the differences in Send, Dispatch,
> and
> > Call. If anyone could correct me, I would appreciate it.
> >
> >
> > I think dispatch does switch contexts.  It send the message to the object
> > and it is processed along the normal message path.  It does have a
> special
> > use of the "me" object which can refer to a behavior. But other than
> that I
> > am pretty sure that references are evaluated in the context of the
> > receiving object, not the sending one.
> >
> >
> > Send is different because messages not handled but the target DO NOT
> > continue down the message path.  Send does NOT resolve "me" to the
> behavior
> > script if there is any. Like Dispatch the context is the receiving
> object,
> > not the sending one.
> >
> >
> > Call is really weird. Context is the CALLING object not the Sending
> object.
> > And messages that are not handled by the target pass down that object's
> > message Path.
> >
> >
> >
> > Thanks
> >
> >
> > Todd
> >
> > --
> > Todd Geist
> > _______________________________________________
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> >
>
>
> --
> Pete
> Molly's Revenge <http://www.mollysrevenge.com>
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-- 
Todd Geist


(805) 419-9382



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