Windows UI Library (WinUI) Documentation

Welcome to the official documentation for the Windows UI Library (WinUI). WinUI is the modern native UI platform for building Windows applications. It provides a comprehensive set of controls, styling, and layout capabilities to create rich and engaging user experiences for the Windows platform.

Whether you're building new applications or modernizing existing ones, WinUI empowers you to deliver beautiful, performant, and accessible user interfaces that feel at home on Windows.

What is WinUI?

WinUI is an open-source project from Microsoft that enables developers to create modern Windows applications using C++, C#, or Visual Basic. It's the evolution of Windows UI development, bringing together the best aspects of UWP and desktop development into a single, cohesive library.

Key Features:

• Rich Control Set: A vast collection of UI controls, from basic elements like buttons and text boxes to complex controls like data grids and charts.
• Modern Styling: Extensive theming and styling capabilities, allowing you to create visually appealing and consistent UIs that adhere to Fluent Design principles.
• Flexible Layout: Powerful layout panels that enable precise control over the arrangement and responsiveness of your UI elements.
• Performance: Optimized for performance, ensuring smooth and responsive applications.
• Accessibility: Built with accessibility in mind, ensuring your applications are usable by everyone.
• Cross-Platform Potential: While primarily for Windows, WinUI's components can be leveraged in various scenarios.

Getting Started

To start building your first WinUI application, head over to our Getting Started section. You'll find guidance on setting up your development environment, creating your first project, and understanding the fundamental concepts of WinUI development.

Core Concepts

Understanding the core concepts of WinUI is crucial for effective development. Explore these key areas:

Controls

WinUI provides a wide array of controls to build your application's interface. From fundamental UI elements to advanced components, you'll find everything you need.

Layout

Arrange your UI elements effectively with WinUI's powerful layout system. Learn how to use panels like Grid, StackPanel, and RelativePanel to create responsive designs.

Read more in the Layout section.

Styling and Theming

Customize the look and feel of your application to match your brand or desired aesthetic. WinUI's styling system allows for deep customization.

Discover more in the Styling documentation.

Resources

• Sample Applications: See WinUI in action with practical examples.
• WinUI GitHub Repository: Access the source code and contribute to the project.
• Official Microsoft Docs: For more in-depth technical details and API references.

We are excited to see what you build with WinUI!