Rick Strahl's Weblog
Rick Strahl's FoxPro and Web Connection Weblog
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Troubleshooting Asynchronous Callbacks into FoxPro Code

May 02, 2020

If you're passing FoxPro objects to COM objects and have .NET call back to you on objects that you passed makes it possible to effectively create asynchrnous applications where .NET code can process stuff in the background and notifying you when it's done or other needs to let you know that something changed. It's powerful but it brings its own set of problems in FoxPro, which wasn't design with Async code in mind. In this post I talk about some of the issue and some of the things you can do to avoid callback hell in FoxPro.