Windows UWP Namespaces

This section provides detailed information about the Windows Runtime (WinRT) APIs. These APIs are for UWP app development on Windows 10.

Namespace Description
Microsoft.UI.Xaml Provides general framework APIs for the Windows UI Library (WinUI).
Microsoft.UI.Xaml.Automation.Peers Defines support types for the Microsoft UI Automation infrastructure.
Microsoft.UI.Xaml.Controls Provides UI controls and classes for creating custom controls.
Microsoft.UI.Xaml.Controls.AnimatedVisuals Defines the built-in animated visuals that can be played by an AnimatedIcon object.
Microsoft.UI.Xaml.Controls.Primitives Defines the components that comprise WinUI controls, or otherwise support the control composition model.
Microsoft.UI.Xaml.Core.Direct Provides a way for middleware authors to access low-level, high-performance XAML APIs and achieve better CPU and working set performance.
Microsoft.UI.Xaml.Media Provides brushes, basic media support, and graphics primitives.
Microsoft.UI.Xaml.XamlTypeInfo Provides support for the XAML schema.