Chapter 3. Create the user interface

Windows RT (WinRT) and Windows 8 are operating systems installed on small handheld tablets to desktop PCs with large multi-touch displays. The resolution, pixel density, and aspect ratio of screens vary greatly among different hardware. Users expect a Windows Store app to adapt to various screen sizes and orientations without changing the app’s usability.

The WinRT application programming interface (API) enables developers to build Windows Store apps with dynamic user interfaces (UIs). The Canvas, StackPanel, and Grid layout controls, for example, let an app adjust to changes in screen size and orientation. App bars provide users with easy access to commands without obstructing the UI.

A well-designed Windows ...

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