Access form object values by programming
An increasing number of developers are using the Form command to link their form objects and many of you require easy programming access to the values...
July 23, 2020
1 min read
4D Language
Design application logic with strong typing, object oriented principles, structured error handling, and modular class architecture. Write clear, maintainable code that works consistently across desktop, web, REST, and client server environments.
Use an offscreen web area
Do you need to load web pages, extract metadata, or generate pictures from the contents of pages on a headless server? If you answered "yes", then you...
June 9, 2020
1 min read
Objects Corner: easy sharing & other good news
How many times have you gotten the "Not supported value type in a shared object" error when trying to put an object into a shared object? What did yo...
May 19, 2020
1 min read
Enhanced XPath Support
XPath is a language allowing you to easily work with your XML documents. It's already usable via the DOM Find XML element command and with 4D v18 R3, ...
May 13, 2020
1 min read
ORDA – Better list box row selecting
You've probably used the LISTBOX SELECT ROW command many times, looping through each entity in order to select the rows for an entity selection. 4D v...
May 11, 2020
1 min read
Object-oriented programming in 4D: Manage class inheritance
In a previous blog post, we introduced a very important concept in object-oriented programming: Classes. Now we'll go through another core concept: In...
May 6, 2020
1 min read
An intro to object-oriented programming in 4D: Classes
Many of you have have been asking to be able to define an object type ever since the Object type became available. Thanks to object notation, many of ...
May 4, 2020
1 min read
Who did what: Store user aliases in the journal
By now, you've surely discovered the new ability to identify your users thanks to the SET USER ALIAS command. In 4D v18 R2, the command's behavior has...
February 25, 2020
1 min read
Ease your developer’s life with list boxes
Our main objective is to make developers' lives easier, day after day, and list boxes are one 4D's most used and powerful form objects that serve this...
January 31, 2020
1 min read
Take control of your work area
Want to adapt your application's interface to your end user's system preferences? Want to make sure your application's interface isn't obscured by the...
January 29, 2020
1 min read