Learn XOJO with Real Code Examples

Updated Nov 20, 2025

Explain

Xojo combines an easy-to-learn syntax with powerful object-oriented features.

It allows rapid development of apps across macOS, Windows, Linux, iOS, and the web from a single codebase.

Includes integrated IDE with visual design tools, debugging, and database access.

Core Features

Drag-and-drop UI design

Classes, objects, and inheritance

Event-driven programming model

Support for desktop, web, and mobile targets

Integrated compiler for native apps

Basic Concepts Overview

Variables and constants

Data types (Integer, String, Boolean, etc.)

Classes and objects

Events and methods

GUI layout and control elements

Project Structure

Project file (.xojo_project)

Source code modules

UI forms/windows/pages

Database connections and queries

Resources (images, icons, etc.)

Building Workflow

Design UI using drag-and-drop editor

Write event-handling code for controls

Test code in IDE using debugger

Connect to databases if needed

Compile and deploy for target platforms

Difficulty Use Cases

Beginner: simple desktop apps

Intermediate: database-driven apps

Advanced: cross-platform apps with complex UI

Expert: multi-platform deployment with external integrations

Comparisons

Xojo vs VB: similar BASIC-like syntax, modern cross-platform support

Xojo vs Python: more GUI and cross-platform IDE support, less ecosystem

Xojo vs Java: simpler syntax, less performance, easier deployment for small apps

Xojo vs C#: less enterprise-focused, faster prototyping for cross-platform apps

Xojo vs Swift/Objective-C: cross-platform, less native iOS performance

Versioning Timeline

1998 – REALbasic released by Geoff Perlman

2000s – REALbasic evolves with GUI improvements

2013 – Rebranded as Xojo for modern cross-platform focus

2015–present – Continuous IDE and language improvements

2025 – Latest Xojo release with updated IDE and platform support

Glossary

IDE: Integrated Development Environment

GUI: Graphical User Interface

Dim: Variable declaration

Event: Action triggered by user or system

Xojo Cloud: Hosting service for web apps