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<!DOCTYPE html>
<html class="writer-html5" lang="en" data-content_root="../">
<head>
<meta charset="utf-8" /><meta name="viewport" content="width=device-width, initial-scale=1" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Input device interface — LVGL documentation</title>
<link rel="stylesheet" type="text/css" href="../_static/pygments.css?v=fa44fd50" />
<link rel="stylesheet" type="text/css" href="../_static/css/theme.css?v=e59714d7" />
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<link rel="shortcut icon" href="../_static/favicon.png"/>
<link rel="canonical" href="https://docs.lvgl.io/v9.0/porting/indev.html" />
<script src="../_static/jquery.js?v=5d32c60e"></script>
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<script src="../_static/dark_mode_js/default_light.js?v=c2e647ce"></script>
<script src="../_static/dark_mode_js/theme_switcher.js?v=358d3910"></script>
<script src="../_static/js/theme.js"></script>
<link rel="index" title="Index" href="../genindex.html" />
<link rel="search" title="Search" href="../search.html" />
<link rel="next" title="Tick interface" href="tick.html" />
<link rel="prev" title="Display interface" href="display.html" />
<!-- Global site tag (gtag.js) - Google Analytics -->
<script async src="https://www.googletagmanager.com/gtag/js?id=UA-78811084-3"></script>
<script>
window.dataLayer = window.dataLayer || [];
function gtag(){dataLayer.push(arguments);}
gtag('js', new Date());
gtag('config', 'UA-78811084-3', { 'anonymize_ip': true });
</script>
</head>
<body class="wy-body-for-nav">
<div class="wy-grid-for-nav">
<nav data-toggle="wy-nav-shift" class="wy-nav-side">
<div class="wy-side-scroll">
<div class="wy-side-nav-search" >
<a href="../index.html">
<img src="../_static/logo_lvgl.png" class="logo" alt="Logo"/>
</a>
<div role="search">
<form id="rtd-search-form" class="wy-form" action="../search.html" method="get">
<input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
<input type="hidden" name="check_keywords" value="yes" />
<input type="hidden" name="area" value="default" />
</form>
</div>
</div><div class="wy-menu wy-menu-vertical" data-spy="affix" role="navigation" aria-label="Navigation menu">
<ul class="current">
<li class="toctree-l1"><a class="reference internal" href="../intro/index.html">Introduction</a><ul>
<li class="toctree-l2"><a class="reference internal" href="../intro/index.html#key-features">Key features</a></li>
<li class="toctree-l2"><a class="reference internal" href="../intro/index.html#requirements">Requirements</a></li>
<li class="toctree-l2"><a class="reference internal" href="../intro/index.html#license">License</a></li>
<li class="toctree-l2"><a class="reference internal" href="../intro/index.html#repository-layout">Repository layout</a></li>
<li class="toctree-l2"><a class="reference internal" href="../intro/index.html#release-policy">Release policy</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../intro/index.html#release-cycle">Release cycle</a></li>
<li class="toctree-l3"><a class="reference internal" href="../intro/index.html#branches">Branches</a></li>
<li class="toctree-l3"><a class="reference internal" href="../intro/index.html#changelog">Changelog</a></li>
<li class="toctree-l3"><a class="reference internal" href="../intro/index.html#version-support">Version support</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="../intro/index.html#faq">FAQ</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../intro/index.html#where-can-i-ask-questions">Where can I ask questions?</a></li>
<li class="toctree-l3"><a class="reference internal" href="../intro/index.html#is-my-mcu-hardware-supported">Is my MCU/hardware supported?</a></li>
<li class="toctree-l3"><a class="reference internal" href="../intro/index.html#is-my-display-supported">Is my display supported?</a></li>
<li class="toctree-l3"><a class="reference internal" href="../intro/index.html#lvgl-doesn-t-start-randomly-crashes-or-nothing-is-drawn-on-the-display-what-can-be-the-problem">LVGL doesn't start, randomly crashes or nothing is drawn on the display. What can be the problem?</a></li>
<li class="toctree-l3"><a class="reference internal" href="../intro/index.html#my-display-driver-is-not-called-what-have-i-missed">My display driver is not called. What have I missed?</a></li>
<li class="toctree-l3"><a class="reference internal" href="../intro/index.html#why-is-the-display-driver-called-only-once-only-the-upper-part-of-the-display-is-refreshed">Why is the display driver called only once? Only the upper part of the display is refreshed.</a></li>
<li class="toctree-l3"><a class="reference internal" href="../intro/index.html#why-do-i-see-only-garbage-on-the-screen">Why do I see only garbage on the screen?</a></li>
<li class="toctree-l3"><a class="reference internal" href="../intro/index.html#why-do-i-see-nonsense-colors-on-the-screen">Why do I see nonsense colors on the screen?</a></li>
<li class="toctree-l3"><a class="reference internal" href="../intro/index.html#how-to-speed-up-my-ui">How to speed up my UI?</a></li>
<li class="toctree-l3"><a class="reference internal" href="../intro/index.html#how-to-reduce-flash-rom-usage">How to reduce flash/ROM usage?</a></li>
<li class="toctree-l3"><a class="reference internal" href="../intro/index.html#how-to-reduce-the-ram-usage">How to reduce the RAM usage</a></li>
<li class="toctree-l3"><a class="reference internal" href="../intro/index.html#how-to-work-with-an-operating-system">How to work with an operating system?</a></li>
</ul>
</li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal" href="../examples.html">Examples</a><ul>
<li class="toctree-l2"><a class="reference internal" href="../examples.html#get-started">Get started</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#a-very-simple-hello-world-label">A very simple <em>hello world</em> label</a></li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#a-button-with-a-label-and-react-on-click-event">A button with a label and react on click event</a></li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#create-styles-from-scratch-for-buttons">Create styles from scratch for buttons</a></li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#create-a-slider-and-write-its-value-on-a-label">Create a slider and write its value on a label</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="../examples.html#styles">Styles</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#size-styles">Size styles</a></li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#background-styles">Background styles</a></li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#border-styles">Border styles</a></li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#outline-styles">Outline styles</a></li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#shadow-styles">Shadow styles</a></li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#image-styles">Image styles</a></li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#arc-styles">Arc styles</a></li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#text-styles">Text styles</a></li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#line-styles">Line styles</a></li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#transition">Transition</a></li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#using-multiple-styles">Using multiple styles</a></li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#local-styles">Local styles</a></li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#add-styles-to-parts-and-states">Add styles to parts and states</a></li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#extending-the-current-theme">Extending the current theme</a></li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#opacity-and-transformations">Opacity and Transformations</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="../examples.html#animations">Animations</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#start-animation-on-an-event">Start animation on an event</a></li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#playback-animation">Playback animation</a></li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#animation-timeline">Animation timeline</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="../examples.html#events">Events</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#button-click-event">Button click event</a></li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#handle-multiple-events">Handle multiple events</a></li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#event-bubbling">Event bubbling</a></li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#draw-event">Draw event</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="../examples.html#layouts">Layouts</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#flex">Flex</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#a-simple-row-and-a-column-layout-with-flexbox">A simple row and a column layout with flexbox</a></li>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#arrange-items-in-rows-with-wrap-and-even-spacing">Arrange items in rows with wrap and even spacing</a></li>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#demonstrate-flex-grow">Demonstrate flex grow</a></li>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#id2">Demonstrate flex grow.</a></li>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#demonstrate-column-and-row-gap-style-properties">Demonstrate column and row gap style properties</a></li>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#rtl-base-direction-changes-order-of-the-items">RTL base direction changes order of the items</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#grid">Grid</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#a-simple-grid">A simple grid</a></li>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#demonstrate-cell-placement-and-span">Demonstrate cell placement and span</a></li>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#demonstrate-grid-s-free-unit">Demonstrate grid's -free unit-</a></li>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#demonstrate-track-placement">Demonstrate track placement</a></li>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#demonstrate-column-and-row-gap">Demonstrate column and row gap</a></li>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#demonstrate-rtl-direction-on-grid">Demonstrate RTL direction on grid</a></li>
</ul>
</li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="../examples.html#scrolling">Scrolling</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#nested-scrolling">Nested scrolling</a></li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#snapping">Snapping</a></li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#floating-button">Floating button</a></li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#styling-the-scrollbars">Styling the scrollbars</a></li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#right-to-left-scrolling">Right to left scrolling</a></li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#translate-on-scroll">Translate on scroll</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="../examples.html#widgets">Widgets</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#base-object">Base object</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#base-objects-with-custom-styles">Base objects with custom styles</a></li>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#make-an-object-draggable">Make an object draggable</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#arc">Arc</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#simple-arc">Simple Arc</a></li>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#loader-with-arc">Loader with Arc</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#bar">Bar</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#simple-bar">Simple Bar</a></li>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#styling-a-bar">Styling a bar</a></li>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#temperature-meter">Temperature meter</a></li>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#stripe-pattern-and-range-value">Stripe pattern and range value</a></li>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#bar-with-ltr-and-rtl-base-direction">Bar with LTR and RTL base direction</a></li>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#custom-drawer-to-show-the-current-value">Custom drawer to show the current value</a></li>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#bar-with-opposite-direction">Bar with opposite direction</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#button">Button</a></li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#button-matrix">Button matrix</a></li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#calendar">Calendar</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#calendar-with-header">Calendar with header</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#canvas">Canvas</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#drawing-on-the-canvas-and-rotate">Drawing on the Canvas and rotate</a></li>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#transparent-canvas-with-chroma-keying">Transparent Canvas with chroma keying</a></li>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#draw-a-rectangle-to-the-canvas">Draw a rectangle to the canvas</a></li>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#draw-a-label-to-the-canvas">Draw a label to the canvas</a></li>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#draw-an-arc-to-the-canvas">Draw an arc to the canvas</a></li>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#draw-an-image-to-the-canvas">Draw an image to the canvas</a></li>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#draw-a-line-to-the-canvas">Draw a line to the canvas</a></li>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#draw-a-vector-graphic-to-the-canvas">Draw a vector graphic to the canvas</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#chart">Chart</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#line-chart">Line Chart</a></li>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#axis-ticks-and-labels-with-scrolling">Axis ticks and labels with scrolling</a></li>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#show-the-value-of-the-pressed-points">Show the value of the pressed points</a></li>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#recolor-bars-based-on-their-value">Recolor bars based on their value</a></li>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#faded-area-line-chart-with-custom-division-lines">Faded area line chart with custom division lines</a></li>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#show-cursor-on-the-clicked-point">Show cursor on the clicked point</a></li>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#scatter-chart">Scatter chart</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#checkbox">Checkbox</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#simple-checkboxes">Simple Checkboxes</a></li>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#checkboxes-as-radio-buttons">Checkboxes as radio buttons</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#colorwheel">Colorwheel</a></li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#dropdown">Dropdown</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#simple-drop-down-list">Simple Drop down list</a></li>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#drop-down-in-four-directions">Drop down in four directions</a></li>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#menu">Menu</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#image">Image</a></li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#image-button">Image button</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#simple-image-button">Simple Image button</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#keyboard">Keyboard</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#keyboard-with-text-area">Keyboard with text area</a></li>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#keyboard-with-custom-map">Keyboard with custom map</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#label">Label</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#line-wrap-recoloring-and-scrolling">Line wrap, recoloring and scrolling</a></li>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#text-shadow">Text shadow</a></li>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#show-ltr-rtl-and-chinese-texts">Show LTR, RTL and Chinese texts</a></li>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#draw-label-with-gradient-color">Draw label with gradient color</a></li>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#customize-circular-scrolling-animation">Customize circular scrolling animation</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#led">LED</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#led-with-custom-style">LED with custom style</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#line">Line</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#simple-line">Simple Line</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#list">List</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#simple-list">Simple List</a></li>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#sorting-a-list-using-up-and-down-buttons">Sorting a List using up and down buttons</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#id3">Menu</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#simple-menu">Simple Menu</a></li>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#simple-menu-with-root-btn">Simple Menu with root btn</a></li>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#simple-menu-with-custom-header">Simple Menu with custom header</a></li>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#simple-menu-with-floating-btn-to-add-new-menu-page">Simple Menu with floating btn to add new menu page</a></li>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#complex-menu">Complex Menu</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#meter">Meter</a></li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#message-box">Message box</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#simple-message-box">Simple Message box</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#roller">Roller</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#simple-roller">Simple Roller</a></li>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#styling-the-roller">Styling the roller</a></li>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#add-fade-mask-to-roller">add fade mask to roller</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#scale">Scale</a></li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#slider">Slider</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#simple-slider">Simple Slider</a></li>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#slider-with-custom-style">Slider with custom style</a></li>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#slider-with-extended-drawer">Slider with extended drawer</a></li>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#slider-with-opposite-direction">Slider with opposite direction</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#span">Span</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#span-with-custom-styles">Span with custom styles</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#spinbox">Spinbox</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#simple-spinbox">Simple Spinbox</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#spinner">Spinner</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#simple-spinner">Simple spinner</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#switch">Switch</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#simple-switch">Simple Switch</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#table">Table</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#simple-table">Simple table</a></li>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#lightweighted-list-from-table">Lightweighted list from table</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#tabview">Tabview</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#simple-tabview">Simple Tabview</a></li>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#tabs-on-the-left-styling-and-no-scrolling">Tabs on the left, styling and no scrolling</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#textarea">Textarea</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#simple-text-area">Simple Text area</a></li>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#text-area-with-password-field">Text area with password field</a></li>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#text-auto-formatting">Text auto-formatting</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#id4">Tabview</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#tileview-with-content">Tileview with content</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../examples.html#window">Window</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../examples.html#simple-window">Simple window</a></li>
</ul>
</li>
</ul>
</li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal" href="../get-started/index.html">Get started</a><ul>
<li class="toctree-l2"><a class="reference internal" href="../get-started/quick-overview.html">Quick overview</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../get-started/quick-overview.html#get-started-in-a-simulator">Get started in a simulator</a></li>
<li class="toctree-l3"><a class="reference internal" href="../get-started/quick-overview.html#add-lvgl-into-your-project">Add LVGL into your project</a></li>
<li class="toctree-l3"><a class="reference internal" href="../get-started/quick-overview.html#learn-the-basics">Learn the basics</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../get-started/quick-overview.html#widgets">Widgets</a></li>
<li class="toctree-l4"><a class="reference internal" href="../get-started/quick-overview.html#events">Events</a></li>
<li class="toctree-l4"><a class="reference internal" href="../get-started/quick-overview.html#parts">Parts</a></li>
<li class="toctree-l4"><a class="reference internal" href="../get-started/quick-overview.html#states">States</a></li>
<li class="toctree-l4"><a class="reference internal" href="../get-started/quick-overview.html#styles">Styles</a></li>
<li class="toctree-l4"><a class="reference internal" href="../get-started/quick-overview.html#themes">Themes</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../get-started/quick-overview.html#examples">Examples</a></li>
<li class="toctree-l3"><a class="reference internal" href="../get-started/quick-overview.html#a-very-simple-hello-world-label">A very simple <em>hello world</em> label</a></li>
<li class="toctree-l3"><a class="reference internal" href="../get-started/quick-overview.html#a-button-with-a-label-and-react-on-click-event">A button with a label and react on click event</a></li>
<li class="toctree-l3"><a class="reference internal" href="../get-started/quick-overview.html#create-styles-from-scratch-for-buttons">Create styles from scratch for buttons</a></li>
<li class="toctree-l3"><a class="reference internal" href="../get-started/quick-overview.html#create-a-slider-and-write-its-value-on-a-label">Create a slider and write its value on a label</a></li>
<li class="toctree-l3"><a class="reference internal" href="../get-started/quick-overview.html#micropython">Micropython</a></li>
</ul>
</li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal" href="../integration/index.html">Integration and Drivers</a><ul>
<li class="toctree-l2"><a class="reference internal" href="../integration/chip/index.html">Chip vendors</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../integration/chip/nxp.html">NXP</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../integration/chip/nxp.html#creating-new-project-with-lvgl">Creating new project with LVGL</a></li>
<li class="toctree-l4"><a class="reference internal" href="../integration/chip/nxp.html#hw-acceleration-for-nxp-imx-rt-platforms">HW acceleration for NXP iMX RT platforms</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../integration/chip/stm32.html">STM32</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../integration/chip/stm32.html#including-lvgl-in-a-project">Including LVGL in a Project</a></li>
<li class="toctree-l4"><a class="reference internal" href="../integration/chip/stm32.html#bare-metal-example">Bare Metal Example</a></li>
<li class="toctree-l4"><a class="reference internal" href="../integration/chip/stm32.html#freertos-example">FreeRTOS Example</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../integration/chip/espressif.html">Espressif (ESP32 chip series)</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../integration/chip/espressif.html#lvgl-demo-project-for-esp32">LVGL demo project for ESP32</a></li>
<li class="toctree-l4"><a class="reference internal" href="../integration/chip/espressif.html#using-lvgl-in-your-esp-idf-project">Using LVGL in your ESP-IDF project</a></li>
<li class="toctree-l4"><a class="reference internal" href="../integration/chip/espressif.html#using-lvgl-esp32-drivers-in-esp-idf-project">Using lvgl_esp32_drivers in ESP-IDF project</a></li>
</ul>
</li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="../integration/driver/index.html">Drivers</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../integration/driver/display/index.html">Display</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../integration/driver/display/ili9341.html">ILI9341 LCD Controller driver</a></li>
<li class="toctree-l4"><a class="reference internal" href="../integration/driver/display/st7735.html">ST7735 LCD Controller driver</a></li>
<li class="toctree-l4"><a class="reference internal" href="../integration/driver/display/st7789.html">ST7789 LCD Controller driver</a></li>
<li class="toctree-l4"><a class="reference internal" href="../integration/driver/display/st7796.html">ST7796 LCD Controller driver</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../integration/driver/touchpad/index.html">Touchpad</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../integration/driver/touchpad/ft6x36.html">FT6X36</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../integration/driver/X11.html">X11 Display/Inputs driver</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../integration/driver/X11.html#overview">Overview</a></li>
<li class="toctree-l4"><a class="reference internal" href="../integration/driver/X11.html#prerequisites">Prerequisites</a></li>
<li class="toctree-l4"><a class="reference internal" href="../integration/driver/X11.html#configure-x11-driver">Configure X11 driver</a></li>
<li class="toctree-l4"><a class="reference internal" href="../integration/driver/X11.html#usage">Usage</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../integration/driver/windows.html">Windows Display/Inputs driver</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../integration/driver/windows.html#overview">Overview</a></li>
<li class="toctree-l4"><a class="reference internal" href="../integration/driver/windows.html#prerequisites">Prerequisites</a></li>
<li class="toctree-l4"><a class="reference internal" href="../integration/driver/windows.html#configure-windows-driver">Configure Windows driver</a></li>
<li class="toctree-l4"><a class="reference internal" href="../integration/driver/windows.html#usage">Usage</a></li>
</ul>
</li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="../integration/framework/index.html">Frameworks</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../integration/framework/arduino.html">Arduino</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../integration/framework/arduino.html#get-the-lvgl-arduino-library">Get the LVGL Arduino library</a></li>
<li class="toctree-l4"><a class="reference internal" href="../integration/framework/arduino.html#set-up-drivers">Set up drivers</a></li>
<li class="toctree-l4"><a class="reference internal" href="../integration/framework/arduino.html#configure-lvgl">Configure LVGL</a></li>
<li class="toctree-l4"><a class="reference internal" href="../integration/framework/arduino.html#initialize-and-run-lvgl">Initialize and run LVGL</a></li>
<li class="toctree-l4"><a class="reference internal" href="../integration/framework/arduino.html#use-the-examples-and-demos">Use the examples and demos</a></li>
<li class="toctree-l4"><a class="reference internal" href="../integration/framework/arduino.html#debugging-and-logging">Debugging and logging</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../integration/framework/platformio.html">Platformio</a></li>
<li class="toctree-l3"><a class="reference internal" href="../integration/framework/tasmota-berry.html">Tasmota and berry</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../integration/framework/tasmota-berry.html#what-is-tasmota">What is Tasmota?</a></li>
<li class="toctree-l4"><a class="reference internal" href="../integration/framework/tasmota-berry.html#what-is-berry">What is Berry?</a></li>
<li class="toctree-l4"><a class="reference internal" href="../integration/framework/tasmota-berry.html#why-lvgl-tasmota-berry">Why LVGL + Tasmota + Berry?</a></li>
<li class="toctree-l4"><a class="reference internal" href="../integration/framework/tasmota-berry.html#so-what-does-it-look-like">So what does it look like?</a></li>
<li class="toctree-l4"><a class="reference internal" href="../integration/framework/tasmota-berry.html#how-can-i-use-it">How can I use it?</a></li>
<li class="toctree-l4"><a class="reference internal" href="../integration/framework/tasmota-berry.html#where-can-i-find-more-information">Where can I find more information?</a></li>
</ul>
</li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="../integration/ide/index.html">IDEs</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../integration/ide/pc-simulator.html">Simulator on PC</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../integration/ide/pc-simulator.html#select-an-ide">Select an IDE</a></li>
<li class="toctree-l4"><a class="reference internal" href="../integration/ide/pc-simulator.html#set-up-eclipse-cdt">Set-up Eclipse CDT</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../integration/ide/mdk.html">MDK</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="../integration/os/index.html">(RT)OS</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../integration/os/nuttx.html">NuttX RTOS</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../integration/os/nuttx.html#what-is-nuttx">What is NuttX?</a></li>
<li class="toctree-l4"><a class="reference internal" href="../integration/os/nuttx.html#why-nuttx-lvgl">Why NuttX + LVGL?</a></li>
<li class="toctree-l4"><a class="reference internal" href="../integration/os/nuttx.html#how-to-get-started-with-nuttx-and-lvgl">How to get started with NuttX and LVGL?</a></li>
<li class="toctree-l4"><a class="reference internal" href="../integration/os/nuttx.html#where-can-i-find-more-information">Where can I find more information?</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../integration/os/rt-thread.html">RT-Thread RTOS</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../integration/os/rt-thread.html#what-is-rt-thread">What is RT-Thread?</a></li>
<li class="toctree-l4"><a class="reference internal" href="../integration/os/rt-thread.html#how-to-run-lvgl-on-rt-thread">How to run LVGL on RT-Thread?</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../integration/os/freertos.html">FreeRTOS</a></li>
<li class="toctree-l3"><a class="reference internal" href="../integration/os/zephyr.html">Zephyr</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../integration/os/zephyr.html#what-is-zephyr">What is Zephyr?</a></li>
<li class="toctree-l4"><a class="reference internal" href="../integration/os/zephyr.html#how-to-run-lvgl-on-zephyr">How to run LVGL on Zephyr?</a></li>
<li class="toctree-l4"><a class="reference internal" href="../integration/os/zephyr.html#leveraging-zephyr-features">Leveraging Zephyr Features</a></li>
<li class="toctree-l4"><a class="reference internal" href="../integration/os/zephyr.html#where-can-i-find-more-information">Where can I find more information?</a></li>
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</li>
<li class="toctree-l3"><a class="reference internal" href="../integration/os/px5.html">PX5 RTOS</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../integration/bindings/index.html">Bindings</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../integration/bindings/micropython.html">Micropython</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../integration/bindings/micropython.html#what-is-micropython">What is Micropython?</a></li>
<li class="toctree-l4"><a class="reference internal" href="../integration/bindings/micropython.html#why-micropython-lvgl">Why Micropython + LVGL?</a></li>
<li class="toctree-l4"><a class="reference internal" href="../integration/bindings/micropython.html#so-what-does-it-look-like">So what does it look like?</a></li>
<li class="toctree-l4"><a class="reference internal" href="../integration/bindings/micropython.html#how-can-i-use-it">How can I use it?</a></li>
<li class="toctree-l4"><a class="reference internal" href="../integration/bindings/micropython.html#where-can-i-find-more-information">Where can I find more information?</a></li>
<li class="toctree-l4"><a class="reference internal" href="../integration/bindings/micropython.html#the-micropython-binding-is-auto-generated">The Micropython Binding is auto generated!</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../integration/bindings/cpp.html">Cpp</a></li>
<li class="toctree-l3"><a class="reference internal" href="../integration/bindings/pikascript.html">PikaScript</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../integration/bindings/pikascript.html#what-is-pikascript">What is PikaScript ?</a></li>
<li class="toctree-l4"><a class="reference internal" href="../integration/bindings/pikascript.html#why-pikascript-lvgl">Why PikaScript + LVGL ?</a></li>
<li class="toctree-l4"><a class="reference internal" href="../integration/bindings/pikascript.html#so-how-does-it-look-like">So how does it look like?</a></li>
<li class="toctree-l4"><a class="reference internal" href="../integration/bindings/pikascript.html#how-does-it-work">How does it work?</a></li>
<li class="toctree-l4"><a class="reference internal" href="../integration/bindings/pikascript.html#how-can-i-use-it">How can I use it?</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../integration/bindings/javascript.html">JavaScript</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../integration/bindings/javascript.html#table-of-contents">Table of Contents</a></li>
<li class="toctree-l4"><a class="reference internal" href="../integration/bindings/javascript.html#features">Features</a></li>
<li class="toctree-l4"><a class="reference internal" href="../integration/bindings/javascript.html#demo">Demo</a></li>
<li class="toctree-l4"><a class="reference internal" href="../integration/bindings/javascript.html#building">Building</a></li>
<li class="toctree-l4"><a class="reference internal" href="../integration/bindings/javascript.html#components">Components</a></li>
<li class="toctree-l4"><a class="reference internal" href="../integration/bindings/javascript.html#font">Font</a></li>
<li class="toctree-l4"><a class="reference internal" href="../integration/bindings/javascript.html#animation">Animation</a></li>
<li class="toctree-l4"><a class="reference internal" href="../integration/bindings/javascript.html#style">Style</a></li>
<li class="toctree-l4"><a class="reference internal" href="../integration/bindings/javascript.html#jsapi">JSAPI</a></li>
<li class="toctree-l4"><a class="reference internal" href="../integration/bindings/javascript.html#thanks">Thanks</a></li>
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</ul>
</li>
</ul>
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<li class="toctree-l1 current"><a class="reference internal" href="index.html">Porting</a><ul class="current">
<li class="toctree-l2"><a class="reference internal" href="project.html">Set up a project</a><ul>
<li class="toctree-l3"><a class="reference internal" href="project.html#get-the-library">Get the library</a></li>
<li class="toctree-l3"><a class="reference internal" href="project.html#add-lvgl-to-your-project">Add lvgl to your project</a><ul>
<li class="toctree-l4"><a class="reference internal" href="project.html#automatically-add-files">Automatically add files</a></li>
<li class="toctree-l4"><a class="reference internal" href="project.html#make-and-cmake">Make and CMake</a></li>
<li class="toctree-l4"><a class="reference internal" href="project.html#other-platforms-and-tools">Other platforms and tools</a></li>
<li class="toctree-l4"><a class="reference internal" href="project.html#demos-and-examples">Demos and Examples</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="project.html#configuration-file">Configuration file</a></li>
<li class="toctree-l3"><a class="reference internal" href="project.html#initialization">Initialization</a></li>
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<li class="toctree-l2"><a class="reference internal" href="display.html">Display interface</a><ul>
<li class="toctree-l3"><a class="reference internal" href="display.html#basic-setup">Basic setup</a><ul>
<li class="toctree-l4"><a class="reference internal" href="display.html#flush-cb">flush_cb</a></li>
<li class="toctree-l4"><a class="reference internal" href="display.html#draw-buffers">Draw buffers</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="display.html#advanced-options">Advanced options</a><ul>
<li class="toctree-l4"><a class="reference internal" href="display.html#resolution">Resolution</a></li>
<li class="toctree-l4"><a class="reference internal" href="display.html#flush-wait-callback">Flush wait callback</a></li>
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<li class="toctree-l4"><a class="reference internal" href="display.html#swap-endianness">Swap endianness</a></li>
<li class="toctree-l4"><a class="reference internal" href="display.html#user-data">User data</a></li>
<li class="toctree-l4"><a class="reference internal" href="display.html#decoupling-the-display-refresh-timer">Decoupling the display refresh timer</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="display.html#events">Events</a></li>
<li class="toctree-l3"><a class="reference internal" href="display.html#further-reading">Further reading</a></li>
<li class="toctree-l3"><a class="reference internal" href="display.html#api">API</a></li>
</ul>
</li>
<li class="toctree-l2 current"><a class="current reference internal" href="#">Input device interface</a><ul>
<li class="toctree-l3"><a class="reference internal" href="#types-of-input-devices">Types of input devices</a><ul>
<li class="toctree-l4"><a class="reference internal" href="#touchpad-mouse-or-any-pointer">Touchpad, mouse or any pointer</a></li>
<li class="toctree-l4"><a class="reference internal" href="#keypad-or-keyboard">Keypad or keyboard</a></li>
<li class="toctree-l4"><a class="reference internal" href="#encoder">Encoder</a></li>
<li class="toctree-l4"><a class="reference internal" href="#button">Button</a></li>
</ul>
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<li class="toctree-l3"><a class="reference internal" href="#other-features">Other features</a><ul>
<li class="toctree-l4"><a class="reference internal" href="#parameters">Parameters</a></li>
<li class="toctree-l4"><a class="reference internal" href="#feedback">Feedback</a></li>
<li class="toctree-l4"><a class="reference internal" href="#associating-with-a-display">Associating with a display</a></li>
<li class="toctree-l4"><a class="reference internal" href="#buffered-reading">Buffered reading</a></li>
<li class="toctree-l4"><a class="reference internal" href="#switching-the-input-device-to-event-driven-mode">Switching the input device to event-driven mode</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="#further-reading">Further reading</a></li>
<li class="toctree-l3"><a class="reference internal" href="#api">API</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="tick.html">Tick interface</a><ul>
<li class="toctree-l3"><a class="reference internal" href="tick.html#api">API</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="timer_handler.html">Timer Handler</a><ul>
<li class="toctree-l3"><a class="reference internal" href="timer_handler.html#api">API</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="sleep.html">Sleep management</a></li>
<li class="toctree-l2"><a class="reference internal" href="os.html">Operating system and interrupts</a><ul>
<li class="toctree-l3"><a class="reference internal" href="os.html#tasks-and-threads">Tasks and threads</a></li>
<li class="toctree-l3"><a class="reference internal" href="os.html#interrupts">Interrupts</a></li>
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</li>
<li class="toctree-l2"><a class="reference internal" href="log.html">Logging</a><ul>
<li class="toctree-l3"><a class="reference internal" href="log.html#log-level">Log level</a></li>
<li class="toctree-l3"><a class="reference internal" href="log.html#printing-logs">Printing logs</a><ul>
<li class="toctree-l4"><a class="reference internal" href="log.html#logging-with-printf">Logging with printf</a></li>
<li class="toctree-l4"><a class="reference internal" href="log.html#custom-log-function">Custom log function</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="log.html#add-logs">Add logs</a></li>
<li class="toctree-l3"><a class="reference internal" href="log.html#api">API</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="draw.html">Custom GPU</a><ul>
<li class="toctree-l3"><a class="reference internal" href="draw.html#overview">Overview</a><ul>
<li class="toctree-l4"><a class="reference internal" href="draw.html#draw-task">Draw task</a></li>
<li class="toctree-l4"><a class="reference internal" href="draw.html#draw-unit">Draw unit</a></li>
<li class="toctree-l4"><a class="reference internal" href="draw.html#draw-task-evaluation">Draw task evaluation</a></li>
<li class="toctree-l4"><a class="reference internal" href="draw.html#dispatching">Dispatching</a></li>
<li class="toctree-l4"><a class="reference internal" href="draw.html#layers">Layers</a></li>
<li class="toctree-l4"><a class="reference internal" href="draw.html#hierarchy-of-modules">Hierarchy of modules</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="draw.html#references">References</a></li>
<li class="toctree-l3"><a class="reference internal" href="draw.html#api">API</a></li>
</ul>
</li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal" href="../overview/index.html">Overview</a><ul>
<li class="toctree-l2"><a class="reference internal" href="../overview/obj.html">Objects</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../overview/obj.html#attributes">Attributes</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../overview/obj.html#basic-attributes">Basic attributes</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/obj.html#specific-attributes">Specific attributes</a></li>
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<li class="toctree-l3"><a class="reference internal" href="../overview/obj.html#working-mechanisms">Working mechanisms</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../overview/obj.html#parent-child-structure">Parent-child structure</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/obj.html#moving-together">Moving together</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/obj.html#visibility-only-on-the-parent">Visibility only on the parent</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/obj.html#create-and-delete-objects">Create and delete objects</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../overview/obj.html#screens">Screens</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../overview/obj.html#create-screens">Create screens</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/obj.html#get-the-active-screen">Get the active screen</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/obj.html#load-screens">Load screens</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/obj.html#layers">Layers</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/obj.html#handling-multiple-displays">Handling multiple displays</a></li>
</ul>
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<li class="toctree-l3"><a class="reference internal" href="../overview/obj.html#parts">Parts</a></li>
<li class="toctree-l3"><a class="reference internal" href="../overview/obj.html#states">States</a></li>
<li class="toctree-l3"><a class="reference internal" href="../overview/obj.html#snapshot">Snapshot</a></li>
<li class="toctree-l3"><a class="reference internal" href="../overview/obj.html#api">API</a></li>
</ul>
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<li class="toctree-l2"><a class="reference internal" href="../overview/coord.html">Positions, sizes, and layouts</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../overview/coord.html#overview">Overview</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../overview/coord.html#units">Units</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/coord.html#boxing-model">Boxing model</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/coord.html#important-notes">Important notes</a></li>
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<li class="toctree-l3"><a class="reference internal" href="../overview/coord.html#position">Position</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../overview/coord.html#simple-way">Simple way</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/coord.html#align">Align</a></li>
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<li class="toctree-l3"><a class="reference internal" href="../overview/coord.html#size">Size</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../overview/coord.html#sizing-the-simple-way">Sizing the Simple way</a></li>
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<li class="toctree-l3"><a class="reference internal" href="../overview/coord.html#using-styles">Using styles</a></li>
<li class="toctree-l3"><a class="reference internal" href="../overview/coord.html#translation">Translation</a></li>
<li class="toctree-l3"><a class="reference internal" href="../overview/coord.html#transformation">Transformation</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../overview/coord.html#min-and-max-size">Min and Max size</a></li>
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<li class="toctree-l3"><a class="reference internal" href="../overview/coord.html#layout">Layout</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../overview/coord.html#layout-overview">Layout Overview</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/coord.html#built-in-layout">Built-in layout</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/coord.html#flags">Flags</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/coord.html#adding-new-layouts">Adding new layouts</a></li>
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<li class="toctree-l3"><a class="reference internal" href="../overview/coord.html#examples">Examples</a></li>
<li class="toctree-l3"><a class="reference internal" href="../overview/coord.html#api">API</a></li>
</ul>
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<li class="toctree-l2"><a class="reference internal" href="../overview/style.html">Styles</a><ul>
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<li class="toctree-l3"><a class="reference internal" href="../overview/style.html#cascading-styles">Cascading styles</a></li>
<li class="toctree-l3"><a class="reference internal" href="../overview/style.html#inheritance">Inheritance</a></li>
<li class="toctree-l3"><a class="reference internal" href="../overview/style.html#parts">Parts</a></li>
<li class="toctree-l3"><a class="reference internal" href="../overview/style.html#initialize-styles-and-set-get-properties">Initialize styles and set/get properties</a></li>
<li class="toctree-l3"><a class="reference internal" href="../overview/style.html#add-and-remove-styles-to-a-widget">Add and remove styles to a widget</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../overview/style.html#add-styles">Add styles</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style.html#replace-styles">Replace styles</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style.html#remove-styles">Remove styles</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style.html#report-style-changes">Report style changes</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style.html#get-a-property-s-value-on-an-object">Get a property's value on an object</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../overview/style.html#local-styles">Local styles</a></li>
<li class="toctree-l3"><a class="reference internal" href="../overview/style.html#properties">Properties</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../overview/style.html#typical-background-properties">Typical background properties</a></li>
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<li class="toctree-l3"><a class="reference internal" href="../overview/style.html#transitions">Transitions</a></li>
<li class="toctree-l3"><a class="reference internal" href="../overview/style.html#opacity-blend-modes-and-transformations">Opacity, Blend modes and Transformations</a></li>
<li class="toctree-l3"><a class="reference internal" href="../overview/style.html#color-filter">Color filter</a></li>
<li class="toctree-l3"><a class="reference internal" href="../overview/style.html#themes">Themes</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../overview/style.html#extending-themes">Extending themes</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../overview/style.html#examples">Examples</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../overview/style.html#size-styles">Size styles</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style.html#background-styles">Background styles</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style.html#border-styles">Border styles</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style.html#outline-styles">Outline styles</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style.html#shadow-styles">Shadow styles</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style.html#image-styles">Image styles</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style.html#arc-styles">Arc styles</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style.html#text-styles">Text styles</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style.html#line-styles">Line styles</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style.html#transition">Transition</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style.html#using-multiple-styles">Using multiple styles</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style.html#id2">Local styles</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style.html#add-styles-to-parts-and-states">Add styles to parts and states</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style.html#extending-the-current-theme">Extending the current theme</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style.html#opacity-and-transformations">Opacity and Transformations</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../overview/style.html#api">API</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="../overview/style-props.html">Style properties</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../overview/style-props.html#size-and-position">Size and position</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#width">width</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#min-width">min_width</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#max-width">max_width</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#height">height</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#min-height">min_height</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#max-height">max_height</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#x">x</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#y">y</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#align">align</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#transform-width">transform_width</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#transform-height">transform_height</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#translate-x">translate_x</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#translate-y">translate_y</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#transform-zoom">transform_zoom</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#transform-angle">transform_angle</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#transform-pivot-x">transform_pivot_x</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#transform-pivot-y">transform_pivot_y</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../overview/style-props.html#padding">Padding</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#pad-top">pad_top</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#pad-bottom">pad_bottom</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#pad-left">pad_left</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#pad-right">pad_right</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#pad-row">pad_row</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#pad-column">pad_column</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../overview/style-props.html#margin">Margin</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#margin-top">margin_top</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#margin-bottom">margin_bottom</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#margin-left">margin_left</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#margin-right">margin_right</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../overview/style-props.html#background">Background</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#bg-color">bg_color</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#bg-opa">bg_opa</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#bg-grad-color">bg_grad_color</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#bg-grad-dir">bg_grad_dir</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#bg-main-stop">bg_main_stop</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#bg-grad-stop">bg_grad_stop</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#bg-grad">bg_grad</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#bg-dither-mode">bg_dither_mode</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#bg-img-src">bg_img_src</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#bg-img-opa">bg_img_opa</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#bg-img-recolor">bg_img_recolor</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#bg-img-recolor-opa">bg_img_recolor_opa</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#bg-img-tiled">bg_img_tiled</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../overview/style-props.html#border">Border</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#border-color">border_color</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#border-opa">border_opa</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#border-width">border_width</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#border-side">border_side</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#border-post">border_post</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../overview/style-props.html#outline">Outline</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#outline-width">outline_width</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#outline-color">outline_color</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#outline-opa">outline_opa</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#outline-pad">outline_pad</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../overview/style-props.html#shadow">Shadow</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#shadow-width">shadow_width</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#shadow-offset-x">shadow_offset_x</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#shadow-offset-y">shadow_offset_y</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#shadow-spread">shadow_spread</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#shadow-color">shadow_color</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#shadow-opa">shadow_opa</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../overview/style-props.html#image">Image</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#img-opa">img_opa</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#img-recolor">img_recolor</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#img-recolor-opa">img_recolor_opa</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../overview/style-props.html#line">Line</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#line-width">line_width</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#line-dash-width">line_dash_width</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#line-dash-gap">line_dash_gap</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#line-rounded">line_rounded</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#line-color">line_color</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#line-opa">line_opa</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../overview/style-props.html#arc">Arc</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#arc-width">arc_width</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#arc-rounded">arc_rounded</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#arc-color">arc_color</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#arc-opa">arc_opa</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#arc-img-src">arc_img_src</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../overview/style-props.html#text">Text</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#text-color">text_color</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#text-opa">text_opa</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#text-font">text_font</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#text-letter-space">text_letter_space</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#text-line-space">text_line_space</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#text-decor">text_decor</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#text-align">text_align</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../overview/style-props.html#miscellaneous">Miscellaneous</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#radius">radius</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#clip-corner">clip_corner</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#opa">opa</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#color-filter-dsc">color_filter_dsc</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#color-filter-opa">color_filter_opa</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#anim">anim</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#anim-time">anim_time</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#anim-speed">anim_speed</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#transition">transition</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#blend-mode">blend_mode</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#layout">layout</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/style-props.html#base-dir">base_dir</a></li>
</ul>
</li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="../overview/scroll.html">Scroll</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../overview/scroll.html#overview">Overview</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../overview/scroll.html#scrollbar">Scrollbar</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/scroll.html#events">Events</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../overview/scroll.html#basic-example">Basic example</a></li>
<li class="toctree-l3"><a class="reference internal" href="../overview/scroll.html#features-of-scrolling">Features of scrolling</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../overview/scroll.html#scrollable">Scrollable</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/scroll.html#scroll-chain">Scroll chain</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/scroll.html#scroll-momentum">Scroll momentum</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/scroll.html#elastic-scroll">Elastic scroll</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/scroll.html#snapping">Snapping</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/scroll.html#scroll-one">Scroll one</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/scroll.html#scroll-on-focus">Scroll on focus</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../overview/scroll.html#scroll-manually">Scroll manually</a></li>
<li class="toctree-l3"><a class="reference internal" href="../overview/scroll.html#self-size">Self size</a></li>
<li class="toctree-l3"><a class="reference internal" href="../overview/scroll.html#examples">Examples</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../overview/scroll.html#nested-scrolling">Nested scrolling</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/scroll.html#id2">Snapping</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/scroll.html#floating-button">Floating button</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/scroll.html#styling-the-scrollbars">Styling the scrollbars</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/scroll.html#right-to-left-scrolling">Right to left scrolling</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/scroll.html#translate-on-scroll">Translate on scroll</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../overview/scroll.html#api">API</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="../overview/layer.html">Layers</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../overview/layer.html#order-of-creation">Order of creation</a></li>
<li class="toctree-l3"><a class="reference internal" href="../overview/layer.html#change-order">Change order</a></li>
<li class="toctree-l3"><a class="reference internal" href="../overview/layer.html#top-and-sys-layers">Top and sys layers</a></li>
<li class="toctree-l3"><a class="reference internal" href="../overview/layer.html#bottom-layers">Bottom layers</a></li>
<li class="toctree-l3"><a class="reference internal" href="../overview/layer.html#api">API</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="../overview/event.html">Events</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../overview/event.html#add-events-to-a-widget">Add events to a widget</a></li>
<li class="toctree-l3"><a class="reference internal" href="../overview/event.html#remove-event-s-from-widgets">Remove event(s) from widgets</a></li>
<li class="toctree-l3"><a class="reference internal" href="../overview/event.html#event-codes">Event codes</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../overview/event.html#input-device-events">Input device events</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/event.html#drawing-events">Drawing events</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/event.html#special-events">Special events</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/event.html#other-events">Other events</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/event.html#display-events">Display events</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/event.html#custom-events">Custom events</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../overview/event.html#sending-events">Sending events</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../overview/event.html#refresh-event">Refresh event</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../overview/event.html#fields-of-lv-event-t">Fields of lv_event_t</a></li>
<li class="toctree-l3"><a class="reference internal" href="../overview/event.html#event-bubbling">Event bubbling</a></li>
<li class="toctree-l3"><a class="reference internal" href="../overview/event.html#examples">Examples</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../overview/event.html#button-click-event">Button click event</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/event.html#handle-multiple-events">Handle multiple events</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/event.html#id2">Event bubbling</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/event.html#draw-event">Draw event</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../overview/event.html#api">API</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="../overview/indev.html">Input devices</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../overview/indev.html#pointers">Pointers</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../overview/indev.html#cursor">Cursor</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/indev.html#gestures">Gestures</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../overview/indev.html#keypad-and-encoder">Keypad and encoder</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../overview/indev.html#groups">Groups</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/indev.html#styling">Styling</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../overview/indev.html#api">API</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="../overview/display.html">Displays</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../overview/display.html#multiple-display-support">Multiple display support</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../overview/display.html#using-only-one-display">Using only one display</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/display.html#mirror-display">Mirror display</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/display.html#split-image">Split image</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../overview/display.html#screens">Screens</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../overview/display.html#transparent-screens">Transparent screens</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../overview/display.html#features-of-displays">Features of displays</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../overview/display.html#inactivity">Inactivity</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/display.html#background">Background</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../overview/display.html#api">API</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="../overview/color.html">Colors</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../overview/color.html#creating-colors">Creating colors</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../overview/color.html#rgb">RGB</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/color.html#hsv">HSV</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/color.html#palette">Palette</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/color.html#modify-and-mix-colors">Modify and mix colors</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/color.html#built-in-colors">Built-in colors</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../overview/color.html#opacity">Opacity</a></li>
<li class="toctree-l3"><a class="reference internal" href="../overview/color.html#api">API</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="../overview/font.html">Fonts</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../overview/font.html#unicode-support">Unicode support</a></li>
<li class="toctree-l3"><a class="reference internal" href="../overview/font.html#built-in-fonts">Built-in fonts</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../overview/font.html#normal-fonts">Normal fonts</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/font.html#special-fonts">Special fonts</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../overview/font.html#special-features">Special features</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../overview/font.html#bidirectional-support">Bidirectional support</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/font.html#arabic-and-persian-support">Arabic and Persian support</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/font.html#subpixel-rendering">Subpixel rendering</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/font.html#compressed-fonts">Compressed fonts</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/font.html#kerning">Kerning</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../overview/font.html#add-a-new-font">Add a new font</a></li>
<li class="toctree-l3"><a class="reference internal" href="../overview/font.html#add-new-symbols">Add new symbols</a></li>
<li class="toctree-l3"><a class="reference internal" href="../overview/font.html#load-a-font-at-run-time">Load a font at run-time</a></li>
<li class="toctree-l3"><a class="reference internal" href="../overview/font.html#load-a-font-from-a-memory-buffer-at-run-time">Load a font from a memory buffer at run-time</a></li>
<li class="toctree-l3"><a class="reference internal" href="../overview/font.html#add-a-new-font-engine">Add a new font engine</a></li>
<li class="toctree-l3"><a class="reference internal" href="../overview/font.html#use-font-fallback">Use font fallback</a></li>
<li class="toctree-l3"><a class="reference internal" href="../overview/font.html#api">API</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="../overview/image.html">Images</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../overview/image.html#store-images">Store images</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../overview/image.html#variables">Variables</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/image.html#files">Files</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../overview/image.html#color-formats">Color formats</a></li>
<li class="toctree-l3"><a class="reference internal" href="../overview/image.html#add-and-use-images">Add and use images</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../overview/image.html#online-converter">Online converter</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/image.html#manually-create-an-image">Manually create an image</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/image.html#use-images">Use images</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../overview/image.html#image-decoder">Image decoder</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../overview/image.html#custom-image-formats">Custom image formats</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/image.html#register-an-image-decoder">Register an image decoder</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/image.html#manually-use-an-image-decoder">Manually use an image decoder</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/image.html#image-post-processing">Image post-processing</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../overview/image.html#image-caching">Image caching</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../overview/image.html#cache-size">Cache size</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/image.html#value-of-images">Value of images</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/image.html#memory-usage">Memory usage</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/image.html#clean-the-cache">Clean the cache</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/image.html#custom-cache-algorithm">Custom cache algorithm</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../overview/image.html#api">API</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="../overview/fs.html">File system</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../overview/fs.html#ready-to-use-drivers">Ready to use drivers</a></li>
<li class="toctree-l3"><a class="reference internal" href="../overview/fs.html#adding-a-driver">Adding a driver</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../overview/fs.html#registering-a-driver">Registering a driver</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/fs.html#implementing-the-callbacks">Implementing the callbacks</a></li>
<li class="toctree-l4"><a class="reference internal" href="../overview/fs.html#other-callbacks">Other callbacks</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../overview/fs.html#usage-example">Usage example</a></li>
<li class="toctree-l3"><a class="reference internal" href="../overview/fs.html#use-drives-for-images">Use drives for images</a></li>
<li class="toctree-l3"><a class="reference internal" href="../overview/fs.html#api">API</a></li>