August 30th, 2017, 6:00 PM, CDT (UTC−5:00)
116 S. Michigan Ave., Chicago IL 3rd floor
Please RSVP if attending in person
Special Topic:
A Publish/Subscribe Component for 4D, David Adams
David Adams demonstrates a component, with source, that implements a “publish/subscribe” messaging system on top of CALL FORM and CALL WORKER. There are a ton of uses for this sort of system, and it is also a very different way of thinking about structuring your code and objects. With the infrastructure in place, it’s very, very easy to extend and reuse interface elements, even complex ones, without a lot of code or new bugs. All of this works within one process with one window, one process with multiple windows, or even multiple processes. Continue reading
