Book Image

Expert Delphi - Second Edition

By : Marco Cantù, Paweł Głowacki
Book Image

Expert Delphi - Second Edition

By: Marco Cantù, Paweł Głowacki

Overview of this book

Master Delphi, the most powerful Object Pascal IDE and versatile component library for cross-platform native app development, by harnessing its capabilities for building natively compiled, blazingly fast apps for all major platforms, including Android, iOS, Windows, Mac, and Linux. Expert Delphi begins with a quick overview of Delphi, helping you get acquainted with the IDE and the Object Pascal language. The book then quickly progresses to more advanced concepts, followed by the architecture of applications and the FireMonkey library, guiding you through building server-side services, parallel programming, and database access. Toward the end, you’ll learn how to integrate your app with various web services and deploy them effectively. By the end of this book, you’ll be adept at building powerful, cross-platform, native apps for iOS, Android, Windows, and macOS—all from a single code base.
Table of Contents (21 chapters)
Free Chapter
1
Part 1: Building Blocks
6
Part 2: Going Mobile
12
Part 3: From Data to Services
19
Index

Using frames

At times, you might want to define a group of controls working together in a certain way and reuse them multiple times. This can be done using frames.

Developer productivity often relies on being able to reuse previous work. Delphi projects consist of forms, data modules, and source code units. If you have an existing unit, it can always be added to a new project. At a smaller scale, there are occasions in which it would be desirable to reuse a certain combination of components. This is where frames come in. If you have a few controls working together that you would like to reuse multiple times in the same or multiple forms, then you can use frames.

Frames cannot exist on their own in the final application. They always need to be embedded in a form. They can contain controls and code, like a regular form.

Let’s consider address information. Imagine we are designing a form with different controls for storing contact data. Our “contact” can...