Viewport Size Reader is a lightweight and reactive OutSystems component that provides the current browser viewport width and height — and triggers an event when the viewport size changes.

Features

• Retrieves the browser’s visible viewport width and height.

• Automatically triggers an event when the viewport size changes due to resizing, zooming, or orientation changes.

Use cases

• Build responsive layouts based on actual viewport size.

• Adjust UI breakpoints for different screen sizes.

• Adapt layouts in real time for desktop, tablet, and mobile views.

• Improve user experience by reacting instantly to viewport changes.