4D

Application design requires a large number of tools and utilities that have to work together in order to provide you with all the functionality you need.

4D is an integrated development environment that offers you a wide selection of such utilities and enables you to create fully-featured applications with SQL databases and web servers support.

Every app needs to store and handle data using search, sort and filter operations to display the user-requested information as quickly as possible. The optimal way to reach all of the available data in the shortest amount of time is to store it in an organized database system. 4D enables you to create tables and link data fields between them, in order to provide quick access times and improved sorting capabilities.

Forms are basically windows that display information and allow users to interact with your application. You can create and customize then by adding text fields, combo boxes, progress bars and buttons. If you want to integrate more complex functions into a form, 4D allows you to add plugin and web areas, which are able to hold any type of external special content.

You can add functionality to your app by including methods and commands to handle triggers or events. Methods are basically called every time a certain action needs to be performed, such as when the user clicks on a button or opens a server connection. They are spread into component, database and REST methods and they can each be modified and tweaked according to your specific needs.

The Commands section provides you with the means to control arrays, menus or triggers included in your application. You can also control web servers by using GET and SEND commands and retrieving various bits of information you can use to extend the functionality of your application.

Code designers and application developers can find 4D to be the development platform they need for their projects, thanks to the wide array of possibilities and the multitude of pre-built methods included. The programs also comes with a thick manual and a comprehensive language reference, where you can find every command or function explained in detail with attached code examples.