$ show microsoft/Windows-universal-samples
This repository is a vast collection of over 1,800 sample projects demonstrating nearly every feature of the Universal Windows Platform (UWP) SDK. It is not a single application but an educational resource containing hundreds of independent, self-contained samples covering sensors, cameras, networking, graphics, file access, notifications, background tasks, device interactions, and many other Windows APIs. Each sample follows a consistent architectural pattern: a MainPage with a scenario selector and multiple Scenario pages that illustrate specific API usage in C++/CX, C++/WinRT, C#, and occasional JavaScript (largely archived). The samples are designed to be built and run with Visual Studio on Windows 10 and 11, serving as both a learning tool for developers and a reference for API behavior. The codebase is extensive and fairly well-organized by feature area, but it suffers from significant technical drift. Many archived samples use deprecated technologies such as C++/CX (legacy) and WinJS (JavaScript), while newer samples adopt modern C++/WinRT. This inconsistency means that some samples may not compile or behave correctly on the latest Windows SDK without updates. Additionally, the repository lacks a unified build system or automated testing, and it includes a large amount of boilerplate code (e.g., identical SampleConfiguration files across hundreds of projects). Despite these drawbacks, the repository remains actively maintained by Microsoft (last commit within 30 days) and provides genuine value for understanding UWP APIs, with several reusable utility components buried within the samples.
The LLM identified 5 files worth highlighting for reuse:
A reusable utility for loading DirectDraw Surface (DDS) textures from files into Direct3D resources. It handles multiple DDS formats, cube maps, and mipmaps, and can be extracted and used in any DirectX 11 project with minimal changes. Demonstrates careful handling of legacy DDS file format and DirectX resource creation.
Encapsulates spatial input handling for HoloLens apps, including gaze, gesture, and voice commands. It uses a polling pattern with an internal state machine and is decoupled from rendering, making it easy to port to other Mixed Reality applications. Shows clean separation of input processing from application logic.
Wraps the Windows.Devices.Enumeration.DeviceWatcher in a reusable helper that provides a simple event model (Added, Updated, Removed) and handles enumeration completion. It manages device collection lifecycle and can be reused across any UWP app that needs to enumerate devices without duplicating the boilerplate watcher logic.
A lightweight high-resolution timer class that tracks total time and frame delta using QueryPerformanceCounter. It is used in DirectX game samples but is completely independent of any graphics API, making it safe to extract for any real-time application needing precise timing. Demonstrates correct use of Windows performance counters with caching of frequency.
Implements a custom IHttpFilter that can modify or log HTTP requests and responses. It is a clean example of the chain-of-responsibility pattern for HTTP client filters in UWP. The code is self-contained and can be reused to inject authentication headers, add caching, or simulate slow network conditions without altering the application's HttpClient usage.