Windows Runtime Library
The Windows Runtime Library (WinRT) is a platform-agnostic application architecture and API set introduced by Microsoft for building modern Windows applications. It provides a component-based programming model that supports multiple languages (C++, C#, JavaScript, etc.) and enables interoperability across different programming environments. WinRT serves as the foundation for Universal Windows Platform (UWP) apps and is designed to be secure, reliable, and scalable for various Windows devices.
Developers should learn WinRT when building cross-platform Windows applications that need to run on desktops, tablets, Xbox, HoloLens, or IoT devices, as it offers a unified API surface and language flexibility. It is particularly useful for creating UWP apps that leverage modern Windows features like live tiles, notifications, and cloud integration, ensuring compatibility with future Windows updates and security standards.