4D v13.4Preface |
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4D v13.4
Preface
Preface
4D has its own programming language. This built-in language, consisting of nearly 1000 commands, makes 4D a powerful development tool for database applications on desktop computers. You can use the 4D language for many different tasks—from performing simple calculations to creating complex custom user interfaces. For example, you can:
The flexibility and power of the 4D programming language make it the ideal tool for all levels of users and developers to accomplish a complete range of information management tasks. Novice users can quickly perform calculations. Experienced users without programming experience can customize their databases. Experienced developers can use this powerful programming language to add sophisticated features and capabilities to their databases, including file transfer and communications. Developers with programming experience in other languages can add their own commands to the 4D language. The 4D programming language is expanded when any of the 4D modules are added to the application. Each module includes language commands that are specific to the capabilities they provide. The manuals described here provide a guide to the features of both 4D and 4D Server. The only exception is the 4D Server Reference, which describes features exclusive to 4D Server.
This manual describes the 4D language. It assumes that you are familiar with terms such as table, field, and form. Before you read this manual, you should:
In this manual, several writing conventions are used:
If you are reading this manual for the first time, read the Introduction section. |
PROPERTIES
Product: 4D |