Windows App SDK Documentation

Develop with the Windows App SDK

The Windows App SDK provides a unified set of APIs and tools that allow you to build modern Windows applications. It offers a consistent development experience across different Windows versions and application types, including desktop applications, UWP apps, and more.

Architecture Overview

Understand the core components of the Windows App SDK and how they interact. This includes the WinUI 3, Windows Runtime (WinRT), and other essential frameworks.

The Windows App SDK is designed to be a modern, forward-looking platform. It leverages the power of C++, C#, and other languages to enable developers to create rich and performant applications.

Building Modern User Interfaces with WinUI 3

WinUI 3 is the latest iteration of Microsoft's native UI platform for Windows. It empowers you to create beautiful, responsive, and accessible user interfaces for your applications.

• Learn about XAML for UI definition.
• Explore controls and customization options.
• Implement adaptive layouts for various screen sizes.
• Understand data templating and styling.

Start building your UI with:

<Button Content="Click Me" Click="Button_Click" />

Data Binding and MVVM

Leverage data binding to connect your UI elements to your application's data. The Model-View-ViewModel (MVVM) pattern is highly recommended for structuring your application logic and UI.

Data binding simplifies the synchronization of data between your models and views, reducing boilerplate code and improving maintainability.

Example of a simple data binding:

<TextBlock Text="{Binding UserName}" />

Asynchronous Programming

Modern applications need to remain responsive. Learn how to implement asynchronous operations using C# or C++ to avoid blocking the UI thread.

Key concepts include:

• async and await keywords.
• Tasks and continuations.
• Handling exceptions in asynchronous code.

Error Handling and Diagnostics

Robust error handling is crucial for a stable application. The Windows App SDK provides tools and best practices for identifying, reporting, and resolving issues.

• Utilize the Debugging Tools for Windows.
• Implement logging and telemetry.
• Understand exception handling mechanisms.

Example: Handling a Button Click Event

Here's how you might handle a button click in C#:

private void Button_Click(object sender, RoutedEventArgs e)
{
    // Your event handling logic here
    MessageBox.Show("Button was clicked!");
}