Help message Broadcasting system

[Andrew Kluthe]

Cool, I am going to meditate on the responses and come up with something
that will take care of my needs. Thank you all for the quick input and
elaborate responses!

On Thu, Feb 11, 2010 at 6:46 PM, Trevor DeVore [via Runtime Revolution] <
ml-node+1477997-959398433 at n4.nabble.com<ml-node%2B1477997-959398433 at n4.nabble.com>
> wrote:

> On Feb 11, 2010, at 4:33 PM, Andrew Kluthe wrote:
>
> > I am converting my noble little app into the glx framework, as I've
> > realized
> > that what it does will be invaluable to me in the long run.
>
> Welcome aboard Andrew. I think you will find the framework very useful
> for application development as it provides the vital pieces that you
> need for creating and maintaining an application in Revolution.
>
> The alternative is to spend time writing your own equivalents. While
> that would be an educational experience you don't get much bang for
> your buck.
>
> There is still a lot of areas that need more thorough documentation so
> if you have a question ask. That usually gives me enough incentive to
> add a few lessons.
>
> There is a Google Group you can send questions to. The link is on the
> main GLX Application Framework page.
>
>
> http://www.bluemangolearning.com/revolution/software/libraries/glx-application-framework/
>
> > A feature that was requested a couple of days ago, and I assume
> > needs to be
> > developed early in the process, is for a Help system.
> >
> > For Example:
> >
> > ...
> > Reading up on GLX, it said something about handling broadcasting.
> >
> > Can I use GLX's broadcasting features to do something like this? Am I
> > misunderstanding the purpose of broadcasting? Am I spinning off into
> > the
> > wrong quadrant of space?
>
> I would go with the advice you have received from others rather than
> using the broadcasting feature of the framework.
>
> In your situation you have multiple objects that are trying to display
> information in a central location. The data is flowing into the help
> display but nobody else really needs to know that the help display has
> been updated.
>
> The broadcasting APIs included with the framework are relevant when
> you have lots of parties interested in any changes made to a single
> object (the reverse of what you are doing).
>
> Basically broadcasting providers a way for any number of objects to
> sign up and say, "Hey, I want to know when object A's property is
> changed or such and such an event occurs." When object A's property is
> changed or the event occurs object A sends out a broadcast. The
> Broadcasting API dispatches messages to all the objects that signed up
> to be notified. Object A doesn't need to know who is signed up.
>
> One concrete example that may prove useful - in one of my apps I have
> a lesson table in a SQL database. The title of a lesson can be
> displayed in a number of different places in the UI. Each UI element
> that displays the lesson title has signed up to be notified when the
> lesson title is changed in the database. When the lesson title is
> changed a broadcast is made and a message is sent out to each object
> that signed up to be notified.
>
> --
> Trevor DeVore
> Blue Mango Learning Systems
> ScreenSteps: http://www.screensteps.com
> Releasable Revolution Resources for Developers:
> http://revolution.bluemangolearning.com
>
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