Tips & Tricks for your 4D Apps – January 2024 Edition

by Add Komoncharoensiri, Director of Technical Services at 4D Inc

Here we go with another set of tips and tricks.

The 4D Knowledge Base is a library of information about 4D technology where weekly tech tips and monthly tech notes are actively published. If you missed the last tips on the KB, that’s fine; here is a compilation from the past few weeks.

This blog post covers 20 tips:

1. 1. 1. Some characters must be encoded in a multi-styled text object
      2. Troubleshooting slow scrolling in an output form
      3. Terminate WebSocket client when form is closed
      4. Utility method to vertically and horizontally center a text form object
      5. 4D.WebSocket instantiation and onOpen function sequence
      6. Troubleshooting menu bar not displaying
      7. Associating Objects with a Pop-up Drop-down List
      8. FORM Event vs. Form event code
      9. Error 10113 (Error with Authentication) sending email
      10. How to allow access to specific ports for 4D Server from Windows
      11. Managing Licenses
      12. “Unable to connect to the Web server. Your 4D license number…” Error on Browser
      13. Troubleshooting mismatch between users connected and client licenses
      14. How to check common data types are empty
      15. Error -10510: Can’t load component [name].4DB
      16. Greyed-Out Classes in the Explorer
      17. Where to point to the correct Unlimited Desktop license
      18. Where to find option to select client-server network layer
      19. Exporting Compiler Results
      20. Analyzing reports from the Info Reports Component