Formula – Think outside the box
According to the top 10 blog posts of 2019, the Formula: More power behind simplicity post ranked quite high ... in the top five. It seems that Formul...
January 9, 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.
Code Editor: Say hello to Comment blocks
Adding a block of comments at the beginning of a method is useful for adding a note about what a method does, as well as a list of input/output parame...
December 4, 2019
1 min read
Coexistence of thread-safe and non-thread-safe commands
Have you ever needed to use methods with both thread-safe and not thread-safe calls, with conditions that skip over commands that are not thread-safe?...
November 27, 2019
1 min read
Zip/unzip files and folders with these commands
Before exchanging files (by email for example), we often compress them to reduce their size before transmitting them. With 4D v18, you can compress an...
November 21, 2019
1 min read
New 4D View Pro form events
As of 4D v18, a new set of 4D View Pro form events are available. They return special information that can be accessed with the new FORM Event command...
November 19, 2019
1 min read
Expanding the abilities of the Form event command
As you may already know, the Form event command identifies the type of form event that has just occurred. It's typically used within a form or object ...
November 15, 2019
1 min read
C_VARIANT to store different type of values
Sometimes you want to write code being able to work with different variable types, this is especially true for generic coding. Using pointers can make...
November 14, 2019
1 min read
Power of objects and dot notation
With 4D v17 R5, we showed you how easy it is to manipulate an object to retrieve the attributes of a file or folder. Things have gotten even easier th...
September 3, 2019
1 min read
Retrieve the current execution call chain
When programming an application, you may need to know where you are in your code, especially when one method calls other methods, which may then call ...
July 23, 2019
1 min read
Who’s who? A new way to identify users
As a 4D developer you often need to manage end users with your own directory system. For internal users, you might create a few profiles with differen...
May 15, 2019
1 min read