Tips & Tricks for your 4D Apps – January 2025 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 18 tips:

1. 1. 1. CREATE DATA FILE and OPEN DATA FILE Failing Only on 4D Server
      2. How to determine location of structure/data file from server administration
      3. Programmatically Styling Appended text in Write Pro Tables
      4. 4D Installer Path
      5. Using placeholders for Dataclasss.query() arguments
      6. 4D Remote Opens Methods in Read Only on the Same Machine as Server
      7. Keyboard shortcut to open context menu in application to go to design mode
      8. Utilizing Custom Tab of Connection to 4D Server Dialog
      9. If a Font Attribute doesn’t work in Write Pro Check if the Font Supports it
      10. Differences between CHANGE CURRENT USER and SET USER ALIAS
      11. query() querySettings parameter options 
      12. Make Only Some Parts of 4D Write Pro Table Enterable 
      13. Autocomplete Not Working for Component Class 
      14. Check quotations when pasting string literal from external source 
      15. Including or Excluding 4D Components and Modules 
      16. Project Mode’s Design Mode Preferences 
      17. Utility method to convert text into picture 
      18. Error -10022: Unable to reach the server through UDP