Sometimes you have to run processes in the background, and as soon as one finishes, perform some actions according to its exit code. From the v19 R4, 4D allows you to start a process in the background with the new 4D.SystemWorker class and execute callback methods automatically when the process returns information. This way, your application UI stays responsive during the execution of the external process, and when finished, you can display the result to the user right away!
Do you dream of using short-circuit evaluation, ternary operators, breaking free from a loop, or exiting from a method with a simple keyword?
Well, dream no more! We listened and kept an eye on your feature requests from the 4D Forum, so here comes a set of 4D language improvements that will help you simplify your code.
Creating reports or spreadsheets from existing templates speeds up development. Starting with 4D v19 R4, copy and paste actions can now be performed using code that copies a range of cells from another location (including other areas).
4D Write Pro makes it easy to create complex documents. Display and layout attributes can be applied to different parts of the documents, whether they are text, images, or tables. Speaking of tables, they benefit from a new property to better define the layout! Let’s see what 4D v19 R4 has in store for you.
When you create a new field in your database, 4D allows you to choose to map NULL value to blank values or not. Starting from 4D v19 R4, in new projects, 4D will no longer by default map the NULL value to an empty value.
4D v19 R4 is shipped with a new ORDA concept: Aliases. They are the logical and complementary continuation of computed attributes.
This blog post explains what aliases are and highlights their advantages, especially when to use one or the other… or both.
Classes were introduced with 4D v18 R3. They allow you to organize your business logic and separate it from the UI part more quickly.
Classes are composed of several functions of varying lengths, so it’s not always easy to find the function you want to modify, or to move from one function to another. You can use the explorer, which displays classes and functions, but when you’re coding in the editor window, you don’t want to waste time changing windows.
With 4D v19 R4, the list of functions in your class is displayed in the code editor toolbar, allowing you to easily jump to a specific function.
As a publisher, you sometimes want to duplicate a merged client application to connect each of them to their dedicated 4D Server. Let’s see how to do this.
At 4D, we take customer requests very seriously!
In previous meetings, customers showed great interest in supporting high-resolution displays, such as 4K displays, in Windows. Your wish has been fulfilled as we have added support for High DPI in 4D.
We are pleased to announce that a new version of 4D is available with new features for 4D for iOS and 4D for Android. Without further ado, let’s dive in:
WHAT’S IN IT?
For 4D for Android and 4D for iOS
- Display object fields in your mobile application in human-readable format or in JSON format. Object fields are used to store various types of data in a 4D application, and now they are easily usable in mobile apps.
- Improvement to generate your embedded data set.
For 4D for Android (already available in 4D for iOS):
- All related data is managed in your application.
- Online actions are available. It’s possible to execute code on a 4D server to check data, execute calculations or add an entity.