Built-in Widgets

XML API reference for every built-in LVGL widget — properties, parameters, elements, shared enums and style properties.

LVGL ships a set of widgets that can be used directly as XML tags (for example <lv_button>, <lv_slider> or <lv_chart>). This section documents the XML API of each one: its properties, parameters and elements, plus the enums and style properties that are shared by every widget.

Every widget builds on the Base Widget (lv_obj), so its properties, flags, events and style bindings are available everywhere. To learn how the <api> itself works — properties, parameters and elements — see the API page.

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Base Widget (lv_obj)

The foundation every widget inherits: size, layout, flags, events, styles.

Style Properties

All style_* properties usable on any widget or in a <style> sheet.

Enums

Shared enumerations used as attribute values across widgets.

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XML License

Learn the LVGL XML Specification license terms, permitted use cases, and restrictions for UI editors and embedded applications.

Style Properties

Every style property usable as a style_* attribute or in a <style> sheet on any widget.

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Reference