Borland Delphi is a software product that uses the Delphi dialect of the Object Pascal programming language and provides an integrated development environment (IDE) for rapid application development of desktop, mobile, web, and console software. It is currently developed and maintained by Embarcadero Technologies[^2^].
Borland Delphi has many features that make it a powerful and productive tool for developers. Some of these features are:
A code editor with code completion, error checking, and refactoring.
A visual designer with two application frameworks: Visual Component Library (VCL) for pure Windows development and FireMonkey (FMX) for cross-platform development.
An integrated debugger with breakpoints, watches, and evaluation.
A source code control component that supports Git, Subversion, and Mercurial.
Support for third-party plugins and components that extend the functionality of the IDE.
A native code compiler that generates fast and optimized code for multiple platforms: Windows, Linux, macOS, iOS, and Android[^2^].
Borland Delphi was originally developed by Borland as a successor of Turbo Pascal, a popular programming language in the 1980s and 1990s. Delphi added full object-oriented programming to the existing language, and the language has grown to support generics, anonymous methods, closures, and native Component Object Model (COM) support[^2^]. Delphi is known for its fast compilation speed, native code, and developer productivity[^2^].
If you are looking for a modern and versatile programming language and IDE that can help you create high-performance native applications for any platform, you should consider using Borland Delphi. You can download a free-of-charge Community edition of Delphi from Embarcadero's website[^3^], which has most of the features of the Professional edition but is restricted to users and companies with low revenue[^2^]. You can also find many resources online to learn more about Delphi's features and capabilities[^1^].
In this article, we will show you how to create a simple Hello World application using Borland Delphi. This application will display a message box with the text \"Hello World\" when you click a button. You will need to have Delphi installed on your computer to follow along.
Step 1: Create a new project
Open Delphi and select File > New > VCL Application. This will create a new project with a blank form. You can change the name and location of the project if you want.
Step 2: Add a button to the form
From the Component Palette, select the Standard category and drag a TButton component to the form. You can resize and position the button as you like. You can also change the caption of the button by clicking on it and editing the Caption property in the Object Inspector.
Step 3: Write the code for the button click event
Double-click on the button to open the Code Editor. This will create an empty procedure for the OnClick event of the button. In this procedure, write the following code:
procedure TForm1.Button1Click(Sender: TObject);
This code will display a message box with the text \"Hello World\" when you click the button.
Step 4: Run and test the application
Select Run > Run from the menu or press F9 to run the application. You should see your form with the button on it. Click on the button and you should see the message box with \"Hello World\". Congratulations, you have created your first Delphi application!