Logo
  • Introduction
    • Key features
    • Requirements
    • License
    • Repository layout
    • Release policy
      • Release cycle
      • Branches
      • Changelog
      • Version support
    • FAQ
      • Where can I ask questions?
      • Is my MCU/hardware supported?
      • Is my display supported?
      • LVGL doesn't start, randomly crashes or nothing is drawn on the display. What can be the problem?
      • My display driver is not called. What have I missed?
      • Why is the display driver called only once? Only the upper part of the display is refreshed.
      • Why do I see only garbage on the screen?
      • Why do I see nonsense colors on the screen?
      • How to speed up my UI?
      • How to reduce flash/ROM usage?
      • How to reduce the RAM usage
      • How to work with an operating system?
  • Examples
    • Get started
      • A very simple hello world label
      • A button with a label and react on click event
      • Create styles from scratch for buttons
      • Create a slider and write its value on a label
    • Styles
      • Size styles
      • Background styles
      • Border styles
      • Outline styles
      • Shadow styles
      • Image styles
      • Arc styles
      • Text styles
      • Line styles
      • Transition
      • Using multiple styles
      • Local styles
      • Add styles to parts and states
      • Extending the current theme
      • Opacity and Transformations
    • Animations
      • Start animation on an event
      • Playback animation
      • Animation timeline
    • Events
      • Button click event
      • Handle multiple events
      • Event bubbling
      • Draw event
    • Layouts
      • Flex
        • A simple row and a column layout with flexbox
        • Arrange items in rows with wrap and even spacing
        • Demonstrate flex grow
        • Demonstrate flex grow.
        • Demonstrate column and row gap style properties
        • RTL base direction changes order of the items
      • Grid
        • A simple grid
        • Demonstrate cell placement and span
        • Demonstrate grid's -free unit-
        • Demonstrate track placement
        • Demonstrate column and row gap
        • Demonstrate RTL direction on grid
    • Scrolling
      • Nested scrolling
      • Snapping
      • Floating button
      • Styling the scrollbars
      • Right to left scrolling
      • Translate on scroll
    • Widgets
      • Base object
        • Base objects with custom styles
        • Make an object draggable
      • Arc
        • Simple Arc
        • Loader with Arc
      • Bar
        • Simple Bar
        • Styling a bar
        • Temperature meter
        • Stripe pattern and range value
        • Bar with LTR and RTL base direction
        • Custom drawer to show the current value
        • Bar with opposite direction
      • Button
      • Button matrix
      • Calendar
        • Calendar with header
      • Canvas
        • Drawing on the Canvas and rotate
        • Transparent Canvas with chroma keying
        • Draw a rectangle to the canvas
        • Draw a label to the canvas
        • Draw an arc to the canvas
        • Draw an image to the canvas
        • Draw a line to the canvas
        • Draw a vector graphic to the canvas
      • Chart
        • Line Chart
        • Axis ticks and labels with scrolling
        • Show the value of the pressed points
        • Recolor bars based on their value
        • Faded area line chart with custom division lines
        • Show cursor on the clicked point
        • Scatter chart
      • Checkbox
        • Simple Checkboxes
        • Checkboxes as radio buttons
      • Colorwheel
      • Dropdown
        • Simple Drop down list
        • Drop down in four directions
        • Menu
      • Image
      • Image button
        • Simple Image button
      • Keyboard
        • Keyboard with text area
        • Keyboard with custom map
      • Label
        • Line wrap, recoloring and scrolling
        • Text shadow
        • Show LTR, RTL and Chinese texts
        • Draw label with gradient color
        • Customize circular scrolling animation
      • LED
        • LED with custom style
      • Line
        • Simple Line
      • List
        • Simple List
        • Sorting a List using up and down buttons
      • Menu
        • Simple Menu
        • Simple Menu with root btn
        • Simple Menu with custom header
        • Simple Menu with floating btn to add new menu page
        • Complex Menu
      • Meter
      • Message box
        • Simple Message box
      • Roller
        • Simple Roller
        • Styling the roller
        • add fade mask to roller
      • Scale
      • Slider
        • Simple Slider
        • Slider with custom style
        • Slider with extended drawer
        • Slider with opposite direction
      • Span
        • Span with custom styles
      • Spinbox
        • Simple Spinbox
      • Spinner
        • Simple spinner
      • Switch
        • Simple Switch
      • Table
        • Simple table
        • Lightweighted list from table
      • Tabview
        • Simple Tabview
        • Tabs on the left, styling and no scrolling
      • Textarea
        • Simple Text area
        • Text area with password field
        • Text auto-formatting
      • Tabview
        • Tileview with content
      • Window
        • Simple window
  • Get started
    • Quick overview
      • Get started in a simulator
      • Add LVGL into your project
      • Learn the basics
        • Widgets
        • Events
        • Parts
        • States
        • Styles
        • Themes
      • Examples
      • A very simple hello world label
      • A button with a label and react on click event
      • Create styles from scratch for buttons
      • Create a slider and write its value on a label
      • Micropython
  • Integration and Drivers
    • Chip vendors
      • NXP
        • Creating new project with LVGL
        • HW acceleration for NXP iMX RT platforms
      • STM32
        • Including LVGL in a Project
        • Bare Metal Example
        • FreeRTOS Example
      • Espressif (ESP32 chip series)
        • LVGL demo project for ESP32
        • Using LVGL in your ESP-IDF project
        • Using lvgl_esp32_drivers in ESP-IDF project
    • Drivers
      • Display
        • ILI9341 LCD Controller driver
        • ST7735 LCD Controller driver
        • ST7789 LCD Controller driver
        • ST7796 LCD Controller driver
      • Touchpad
        • FT6X36
      • X11 Display/Inputs driver
        • Overview
        • Prerequisites
        • Configure X11 driver
        • Usage
      • Windows Display/Inputs driver
        • Overview
        • Prerequisites
        • Configure Windows driver
        • Usage
    • Frameworks
      • Arduino
        • Get the LVGL Arduino library
        • Set up drivers
        • Configure LVGL
        • Initialize and run LVGL
        • Use the examples and demos
        • Debugging and logging
      • Platformio
      • Tasmota and berry
        • What is Tasmota?
        • What is Berry?
        • Why LVGL + Tasmota + Berry?
        • So what does it look like?
        • How can I use it?
        • Where can I find more information?
    • IDEs
      • Simulator on PC
        • Select an IDE
        • Set-up Eclipse CDT
      • MDK
    • (RT)OS
      • NuttX RTOS
        • What is NuttX?
        • Why NuttX + LVGL?
        • How to get started with NuttX and LVGL?
        • Where can I find more information?
      • RT-Thread RTOS
        • What is RT-Thread?
        • How to run LVGL on RT-Thread?
      • FreeRTOS
      • Zephyr
        • What is Zephyr?
        • How to run LVGL on Zephyr?
        • Leveraging Zephyr Features
        • Where can I find more information?
      • PX5 RTOS
    • Bindings
      • Micropython
        • What is Micropython?
        • Why Micropython + LVGL?
        • So what does it look like?
        • How can I use it?
        • Where can I find more information?
        • The Micropython Binding is auto generated!
      • Cpp
      • PikaScript
        • What is PikaScript ?
        • Why PikaScript + LVGL ?
        • So how does it look like?
        • How does it work?
        • How can I use it?
      • JavaScript
        • Table of Contents
        • Features
        • Demo
        • Building
        • Components
        • Font
        • Animation
        • Style
        • JSAPI
        • Thanks
  • Porting
    • Set up a project
      • Get the library
      • Add lvgl to your project
        • Automatically add files
        • Make and CMake
        • Other platforms and tools
        • Demos and Examples
      • Configuration file
      • Initialization
    • Display interface
      • Basic setup
        • flush_cb
        • Draw buffers
      • Advanced options
        • Resolution
        • Flush wait callback
        • Rotation
        • Color format
        • Swap endianness
        • User data
        • Decoupling the display refresh timer
      • Events
      • Further reading
      • API
    • Input device interface
      • Types of input devices
        • Touchpad, mouse or any pointer
        • Keypad or keyboard
        • Encoder
        • Button
      • Other features
        • Parameters
        • Feedback
        • Associating with a display
        • Buffered reading
        • Switching the input device to event-driven mode
      • Further reading
      • API
    • Tick interface
      • API
    • Timer Handler
      • API
    • Sleep management
    • Operating system and interrupts
      • Tasks and threads
      • Interrupts
    • Logging
      • Log level
      • Printing logs
        • Logging with printf
        • Custom log function
      • Add logs
      • API
    • Custom GPU
      • Overview
        • Draw task
        • Draw unit
        • Draw task evaluation
        • Dispatching
        • Layers
        • Hierarchy of modules
      • References
      • API
  • Overview
    • Objects
      • Attributes
        • Basic attributes
        • Specific attributes
      • Working mechanisms
        • Parent-child structure
        • Moving together
        • Visibility only on the parent
        • Create and delete objects
      • Screens
        • Create screens
        • Get the active screen
        • Load screens
        • Layers
        • Handling multiple displays
      • Parts
      • States
      • Snapshot
      • API
    • Positions, sizes, and layouts
      • Overview
        • Units
        • Boxing model
        • Important notes
      • Position
        • Simple way
        • Align
      • Size
        • Sizing the Simple way
      • Using styles
      • Translation
      • Transformation
        • Min and Max size
      • Layout
        • Layout Overview
        • Built-in layout
        • Flags
        • Adding new layouts
      • Examples
      • API
    • Styles
      • States
      • Cascading styles
      • Inheritance
      • Parts
      • Initialize styles and set/get properties
      • Add and remove styles to a widget
        • Add styles
        • Replace styles
        • Remove styles
        • Report style changes
        • Get a property's value on an object
      • Local styles
      • Properties
        • Typical background properties
      • Transitions
      • Opacity, Blend modes and Transformations
      • Color filter
      • Themes
        • Extending themes
      • Examples
        • Size styles
        • Background styles
        • Border styles
        • Outline styles
        • Shadow styles
        • Image styles
        • Arc styles
        • Text styles
        • Line styles
        • Transition
        • Using multiple styles
        • Local styles
        • Add styles to parts and states
        • Extending the current theme
        • Opacity and Transformations
      • API
    • Style properties
      • Size and position
        • width
        • min_width
        • max_width
        • height
        • min_height
        • max_height
        • x
        • y
        • align
        • transform_width
        • transform_height
        • translate_x
        • translate_y
        • transform_zoom
        • transform_angle
        • transform_pivot_x
        • transform_pivot_y
      • Padding
        • pad_top
        • pad_bottom
        • pad_left
        • pad_right
        • pad_row
        • pad_column
      • Margin
        • margin_top
        • margin_bottom
        • margin_left
        • margin_right
      • Background
        • bg_color
        • bg_opa
        • bg_grad_color
        • bg_grad_dir
        • bg_main_stop
        • bg_grad_stop
        • bg_grad
        • bg_dither_mode
        • bg_img_src
        • bg_img_opa
        • bg_img_recolor
        • bg_img_recolor_opa
        • bg_img_tiled
      • Border
        • border_color
        • border_opa
        • border_width
        • border_side
        • border_post
      • Outline
        • outline_width
        • outline_color
        • outline_opa
        • outline_pad
      • Shadow
        • shadow_width
        • shadow_offset_x
        • shadow_offset_y
        • shadow_spread
        • shadow_color
        • shadow_opa
      • Image
        • img_opa
        • img_recolor
        • img_recolor_opa
      • Line
        • line_width
        • line_dash_width
        • line_dash_gap
        • line_rounded
        • line_color
        • line_opa
      • Arc
        • arc_width
        • arc_rounded
        • arc_color
        • arc_opa
        • arc_img_src
      • Text
        • text_color
        • text_opa
        • text_font
        • text_letter_space
        • text_line_space
        • text_decor
        • text_align
      • Miscellaneous
        • radius
        • clip_corner
        • opa
        • color_filter_dsc
        • color_filter_opa
        • anim
        • anim_time
        • anim_speed
        • transition
        • blend_mode
        • layout
        • base_dir
    • Scroll
      • Overview
        • Scrollbar
        • Events
      • Basic example
      • Features of scrolling
        • Scrollable
        • Scroll chain
        • Scroll momentum
        • Elastic scroll
        • Snapping
        • Scroll one
        • Scroll on focus
      • Scroll manually
      • Self size
      • Examples
        • Nested scrolling
        • Snapping
        • Floating button
        • Styling the scrollbars
        • Right to left scrolling
        • Translate on scroll
      • API
    • Layers
      • Order of creation
      • Change order
      • Top and sys layers
      • Bottom layers
      • API
    • Events
      • Add events to a widget
      • Remove event(s) from widgets
      • Event codes
        • Input device events
        • Drawing events
        • Special events
        • Other events
        • Display events
        • Custom events
      • Sending events
        • Refresh event
      • Fields of lv_event_t
      • Event bubbling
      • Examples
        • Button click event
        • Handle multiple events
        • Event bubbling
        • Draw event
      • API
    • Input devices
      • Pointers
        • Cursor
        • Gestures
      • Keypad and encoder
        • Groups
        • Styling
      • API
    • Displays
      • Multiple display support
        • Using only one display
        • Mirror display
        • Split image
      • Screens
        • Transparent screens
      • Features of displays
        • Inactivity
        • Background
      • API
    • Colors
      • Creating colors
        • RGB
        • HSV
        • Palette
        • Modify and mix colors
        • Built-in colors
      • Opacity
      • API
    • Fonts
      • Unicode support
      • Built-in fonts
        • Normal fonts
        • Special fonts
      • Special features
        • Bidirectional support
        • Arabic and Persian support
        • Subpixel rendering
        • Compressed fonts
        • Kerning
      • Add a new font
      • Add new symbols
      • Load a font at run-time
      • Load a font from a memory buffer at run-time
      • Add a new font engine
      • Use font fallback
      • API
    • Images
      • Store images
        • Variables
        • Files
      • Color formats
      • Add and use images
        • Online converter
        • Manually create an image
        • Use images
      • Image decoder
        • Custom image formats
        • Register an image decoder
        • Manually use an image decoder
        • Image post-processing
      • Image caching
        • Cache size
        • Value of images
        • Memory usage
        • Clean the cache
        • Custom cache algorithm
      • API
    • File system
      • Ready to use drivers
      • Adding a driver
        • Registering a driver
        • Implementing the callbacks
        • Other callbacks
      • Usage example
      • Use drives for images
      • API
    • Animations
      • Create an animation
      • Animation path
      • Speed vs time
      • Delete animations
      • Timeline
      • Examples
        • Start animation on an event
        • Playback animation
        • Animation timeline
      • API
    • Timers
      • Create a timer
      • Ready and Reset
      • Set parameters
      • Repeat count
      • Enable and Disable
      • Pause and Resume
      • Measure idle time
      • Timer handler resume callback
      • Asynchronous calls
      • API
    • Drawing
      • Mechanism of screen refreshing
      • Masking
        • Using masks
      • Hook drawing
        • Main drawing
        • Post drawing
        • Part drawing
        • Others
      • API
    • Profiler
      • Introduction
      • Usage
        • Configure profiler
        • Run the test scenario
        • Process the logs
        • Performance analysis
      • Add Measurement Point
      • Custom profiler implementation
      • FAQ
        • Perfetto log parsing fails
        • Function execution time displayed as 0s in Perfetto
        • Significant stuttering occurs during profiling
        • Trace logs are not being output
    • Renderers and GPUs
      • Software renderer
        • API
      • SDL renderer
        • API
      • Arm-2D GPU
        • How to Use
        • Design Considerations
        • Examples
        • API
      • NXP PXP GPU
        • API
      • DMA2D GPU
        • API
      • NXP VGLite GPU
        • API
    • New widget
  • Widgets
    • Base object (lv_obj)
      • Overview
        • Coordinates
        • Parents and children
        • Display and Screens
        • Events
        • Styles
        • Flags
        • Groups
        • Extended click area
      • Events
      • Keys
      • Example
        • Base objects with custom styles
        • Make an object draggable
      • API
    • Arc (lv_arc)
      • Overview
      • Parts and Styles
      • Usage
        • Value and range
        • Rotation
        • Mode
        • Change rate
        • Knob offset
        • Setting the indicator manually
        • Advanced hit test
        • Place another object to the knob
      • Events
      • Keys
      • Example
        • Simple Arc
        • Loader with Arc
      • API
    • Animation Image (lv_animimg)
      • Overview
      • Parts and Styles
      • Usage
        • Image sources
      • Events
      • Keys
      • Example
        • Simple Animation Image
      • API
    • Bar (lv_bar)
      • Overview
      • Parts and Styles
      • Usage
        • Value and range
        • Modes
      • Events
      • Keys
      • Example
        • Simple Bar
        • Styling a bar
        • Temperature meter
        • Stripe pattern and range value
        • Bar with LTR and RTL base direction
        • Custom drawer to show the current value
        • Bar with opposite direction
      • API
    • Button (lv_button)
      • Overview
      • Parts and Styles
      • Usage
      • Events
      • Keys
      • Example
        • Simple Buttons
        • Styling buttons
        • Gummy button
      • API
    • Button matrix (lv_buttonmatrix)
      • Overview
      • Parts and Styles
      • Usage
        • Button's text
        • Control buttons
        • One check
      • Events
      • Keys
      • Example
        • Simple Button matrix
        • Custom buttons
        • Pagination
      • API
    • Calendar (lv_calendar)
      • Overview
      • Parts and Styles
      • Usage
        • Current date
        • Shown date
        • Highlighted days
        • Name of the days
        • Custom year list
      • Events
      • Keys
      • Headers
        • Arrow buttons
        • Drop-down
      • Example
        • Calendar with header
      • API
    • Chart (lv_chart)
      • Overview
      • Parts and Styles
      • Usage
        • Chart type
        • Data series
        • Modify the data
        • Update modes
        • Number of points
        • Vertical range
        • Division lines
        • Override default start point for series
        • Tick marks and labels
        • Zoom
        • Cursor
      • Events
      • Keys
      • Example
        • Line Chart
        • Axis ticks and labels with scrolling
        • Show the value of the pressed points
        • Recolor bars based on their value
        • Faded area line chart with custom division lines
        • Show cursor on the clicked point
        • Scatter chart
      • API
    • Canvas (lv_canvas)
      • Overview
      • Parts and Styles
      • Usage
        • Buffer
        • Indexed colors
        • Drawing
      • Events
      • Keys
      • Example
        • Drawing on the Canvas and rotate
        • Transparent Canvas with chroma keying
        • Draw a rectangle to the canvas
        • Draw a label to the canvas
        • Draw an arc to the canvas
        • Draw an image to the canvas
        • Draw a line to the canvas
        • Draw a vector graphic to the canvas
      • API
    • Checkbox (lv_checkbox)
      • Overview
      • Parts and Styles
      • Usage
        • Text
        • Check, uncheck, disable
      • Events
      • Keys
      • Example
        • Simple Checkboxes
        • Checkboxes as radio buttons
      • API
    • Drop-down list (lv_dropdown)
      • Overview
      • Parts and Styles
        • Button
        • List
      • Usage
      • Options
        • Set options
        • Get selected option
        • Direction
        • Symbol
        • Show selected
        • Manually open/close
      • Events
      • Keys
      • Example
        • Simple Drop down list
        • Drop down in four directions
        • Menu
      • API
    • Image (lv_image)
      • Overview
      • Parts and Styles
      • Usage
        • Image source
        • Label as an image
        • Transparency
        • Palette and Alpha index
        • Recolor
        • Offset
        • Transformations
        • Align
      • Events
      • Keys
      • Example
        • Image from variable and symbol
        • Image recoloring
        • Rotate and zoom
        • Image offset and styling
      • API
    • Image button (lv_imagebutton)
      • Overview
      • Parts and Styles
      • Usage
        • Image sources
        • States
      • Events
      • Keys
      • Example
        • Simple Image button
      • API
    • Keyboard (lv_keyboard)
      • Overview
      • Parts and Styles
      • Usage
        • Modes
        • Assign Text area
        • Key Popovers
        • New Keymap
      • Events
      • Keys
      • Example
        • Keyboard with text area
        • Keyboard with custom map
      • API
    • Label (lv_label)
      • Overview
      • Parts and Styles
      • Usage
        • Set text
        • Newline
        • Long modes
        • Text selection
        • Text alignment
        • Very long texts
        • Custom scrolling animations
        • Symbols
      • Events
      • Keys
      • Example
        • Line wrap, recoloring and scrolling
        • Text shadow
        • Show LTR, RTL and Chinese texts
        • Draw label with gradient color
        • Customize circular scrolling animation
      • API
    • LED (lv_led)
      • Overview
      • Parts and Styles
      • Usage
        • Color
        • Brightness
        • Toggle
      • Events
      • Keys
      • Example
        • LED with custom style
      • API
    • Line (lv_line)
      • Overview
      • Parts and Styles
      • Usage
        • Set points
        • Auto-size
        • Invert y
      • Events
      • Keys
      • Example
        • Simple Line
      • API
    • List (lv_list)
      • Overview
      • Parts and Styles
      • Usage
        • Buttons
        • Texts
      • Events
      • Keys
      • Example
        • Simple List
        • Sorting a List using up and down buttons
      • API
    • Menu (lv_menu)
      • Overview
      • Parts and Styles
      • Usage
        • Create a menu
        • Header mode
        • Root back button mode
        • Create a menu page
        • Set a menu page in the main area
        • Set a menu page in the sidebar
        • Linking between menu pages
        • Create a menu container, section, separator
      • Events
      • Keys
      • Example
        • Simple Menu
        • Simple Menu with root btn
        • Simple Menu with custom header
        • Simple Menu with floating btn to add new menu page
        • Complex Menu
      • API
    • Message box (lv_msgbox)
      • Overview
      • Parts and Styles
      • Usage
        • Create a message box
        • Get the parts
        • Close the message box
      • Events
      • Keys
      • Example
        • Simple Message box
      • API
    • Roller (lv_roller)
      • Overview
      • Parts and Styles
      • Usage
        • Set options
        • Get selected option
        • Visible rows
      • Events
      • Keys
      • Example
        • Simple Roller
        • Styling the roller
        • add fade mask to roller
      • API
    • Scale (lv_scale)
      • Overview
      • Parts and Styles
      • Usage
        • Set ranges
        • Configure ticks
        • Sections
      • Events
      • Keys
      • Example
      • API
    • Slider (lv_slider)
      • Overview
      • Parts and Styles
      • Usage
        • Value and range
        • Modes
        • Knob-only mode
      • Events
      • Keys
      • Example
        • Simple Slider
        • Slider with custom style
        • Slider with extended drawer
        • Slider with opposite direction
      • API
    • Span (lv_span)
      • Overview
      • Parts and Styles
      • Usage
        • Set text and style
        • Retrieving a span child
        • Child Count
        • Text align
        • Modes
        • Overflow
        • First line indent
        • Lines
      • Events
      • Keys
      • Example
        • Span with custom styles
      • API
    • Spinbox (lv_spinbox)
      • Overview
      • Parts and Styles
        • Value, range and step
        • Format
        • Rollover
      • Events
      • Keys
      • Example
        • Simple Spinbox
      • API
    • Spinner (lv_spinner)
      • Overview
      • Parts and Styles
      • Usage
        • Create a spinner
      • Events
      • Keys
      • Example
        • Simple spinner
      • API
    • Switch (lv_switch)
      • Overview
      • Parts and Styles
      • Usage
        • Change state
      • Events
      • Keys
      • Example
        • Simple Switch
      • API
    • Table (lv_table)
      • Overview
      • Parts and Styles
      • Usage
        • Set cell value
        • Rows and Columns
        • Width and Height
        • Merge cells
        • Scroll
      • Events
      • Keys
      • Example
        • Simple table
        • Lightweighted list from table
        • MicroPython
      • API
    • Tabview (lv_tabview)
      • Overview
      • Parts and Styles
      • Usage
        • Create a Tab view
        • Add tabs
        • Rename tabs
        • Change tab
        • Set tab bar position
        • Set tab bra size
        • Get the parts
      • Events
      • Keys
      • Example
        • Simple Tabview
        • Tabs on the left, styling and no scrolling
      • API
    • Text area (lv_textarea)
      • Overview
      • Parts and Styles
      • Usage
        • Add text
        • Placeholder
        • Delete character
        • Move the cursor
        • Hide the cursor
        • One line mode
        • Password mode
        • Accepted characters
        • Max text length
        • Very long texts
        • Select text
      • Events
      • Keys
      • Example
        • Simple Text area
        • Text area with password field
        • Text auto-formatting
      • API
    • Tile view (lv_tileview)
      • Overview
      • Parts and Styles
      • Usage
        • Add a tile
        • Change tile
      • Events
      • Keys
      • Example
        • Tileview with content
      • API
    • Window (lv_win)
      • Overview
      • Parts and Styles
      • Usage
        • Create a Window
        • Title and buttons
      • Get the parts
      • Events
      • Keys
      • Example
        • Simple window
      • API
  • Layouts
    • Flex
      • Overview
      • Terms
      • Simple interface
        • Flex flow
        • Flex align
        • Flex grow
      • Style interface
        • Internal padding
      • Other features
        • RTL
        • New track
      • Example
        • A simple row and a column layout with flexbox
        • Arrange items in rows with wrap and even spacing
        • Demonstrate flex grow
        • Demonstrate flex grow.
        • Demonstrate column and row gap style properties
        • RTL base direction changes order of the items
      • API
    • Grid
      • Overview
      • Terms
      • Simple interface
        • Grid descriptors
        • Grid items
        • Grid align
        • Sub grid
      • Style interface
        • Internal padding
      • Other features
        • RTL
      • Example
        • A simple grid
        • Demonstrate cell placement and span
        • Demonstrate grid's -free unit-
        • Demonstrate track placement
        • Demonstrate column and row gap
        • Demonstrate RTL direction on grid
      • API
  • 3rd party libraries
    • File System Interfaces
      • Usage
      • API
    • BMP decoder
      • Limitations
      • Example
      • Open a BMP image from file
      • API
    • Tiny JPEG Decompressor (TJpgDec)
      • Overview
      • Usage
      • Converter
        • Converting JPEG to C array
      • Example
      • Load a JPG image
      • API
    • libjpeg-turbo decoder
      • Install
      • Add libjpeg-turbo to your project
      • Usage
      • Example
      • Load a JPG image
      • API
    • LodePNG decoder
      • Compress PNG files
      • Example
      • Open a PNG image from file and variable
      • API
    • libpng decoder
      • Install
      • Add libpng to your project
      • Usage
      • Example
      • Open a PNG image from file
      • API
    • GIF decoder
      • Convert GIF files to C array
      • Use GIF images from file
      • Memory requirements
      • Example
      • Open a GIF image from file and variable
      • API
    • FreeType support
      • Add FreeType to your project
        • For UNIX
        • For Embedded Devices
      • Usage
      • Example
      • Open a front with FreeType
      • Learn more
      • API
    • Tiny TTF font engine
      • Usage
      • Example
      • Open a font with Tiny TTF from data array
      • Load a font with Tiny_TTF from file
      • Change font size with Tiny_TTF
      • API
    • QR code
      • Usage
      • Notes
      • Example
      • Create a QR Code
      • API
    • Barcode
      • Usage
      • Notes
      • Example
      • Create a Barcode
      • API
    • Lottie player
      • Build Rlottie
        • ESP-IDF example at bottom
      • Usage
        • Use Rlottie from file
        • Use Rlottie from raw string data
      • Getting animations
      • Controlling animations
      • ESP-IDF Example
        • Background
        • IDF Setup
        • Rlottie patch file
        • CMakeLists for IDF
        • Additional Rlottie considerations in ESP-IDF
        • Additional changes to make use of SPIRAM
      • Example
      • Load a Lottie animation from raw data
      • Load a Lottie animation from a file
      • API
    • FFmpeg support
      • Install FFmpeg
      • Add FFmpeg to your project
      • Usage
      • Example
      • Decode image
      • Decode video
      • API
    • RLE Compress
      • Benefits
      • Theory
      • Usage
      • Generate RLE compressed binary images
  • Others
    • Snapshot
      • Usage
        • Free the Image
        • Use Existing Buffer
      • Example
      • Simple snapshot example
      • API
    • Monkey
      • Usage
      • Example
      • Touchpad monkey example
      • Encoder monkey example
      • Button monkey example
      • API
    • Grid navigation
      • Usage
      • Focusable objects
      • Example
      • Basic grid navigation
      • Grid navigation on a list
      • Nested grid navigations
      • Simple navigation on a list widget
      • API
    • File Explorer
      • Usage
        • Quick access
        • Sort
      • Events
      • Example
      • Simple File Explorer
      • Control File Explorer
      • Custom sort
      • API
    • Fragment
      • Usage
        • Create Fragment Class
        • Use lv_fragment_manager
        • Fragment Based Navigation
      • Example
      • Basic fragment usage
      • Stack navigation example
      • API
    • Observer
      • Overview
      • Subject
        • Subject initialization
        • Set subject value
        • Get subject's value
        • Get subject's previous value
      • Observer
        • Subscribe to a subject
        • Unsubscribe from a subject
      • Subject groups
      • Widget binding
        • Base object
        • Button
        • Label
        • Arc
        • Slider
        • Roller
        • Drop-down
      • Example
        • Bind a slider's value to a label
        • Handling login and its states
        • Set time with 12/24 mode and AM/PM
        • Custom tab view with state management
        • Firmware update process
        • Modular style update on theme change
      • API
    • Image font
      • Usage
      • Example
      • Use emojis in a text.
      • API
    • Pinyin IME
      • Usage
      • Custom dictionary
        • Dictionary format
        • Apply new dictionary
      • Modes
      • Example
      • Pinyin IME 26 key input
      • Pinyin IME 9 key input
      • API
    • OBJ ID
      • Usage
        • Use custom ID generator
        • Dump obj tree
    • Widget Property
      • Usage
        • Property ID
        • Property Value
      • A Step Further
  • API
    • lv_conf_kconfig.h
    • lv_conf_internal.h
    • lv_api_map.h
      • lv_coord_t
      • lv_res_t
      • lv_img_dsc_t
      • lv_disp_t
      • lv_disp_rotation_t
      • lv_disp_render_t
      • lv_anim_ready_cb_t
      • lv_task_handler()
      • lv_obj_move_foreground()
      • lv_obj_move_background()
    • lvgl.h
    • lv_init.h
      • lv_init()
      • lv_deinit()
      • lv_is_initialized()
    • font
      • lv_binfont_loader.h
        • lv_binfont_create()
        • lv_binfont_destroy()
      • lv_font.h
        • lv_font_subpx_t
        • lv_font_kerning_t
        • _lv_font_subpx_t
        • _lv_font_kerning_t
        • lv_font_get_glyph_bitmap()
        • lv_font_get_glyph_dsc()
        • lv_font_glyph_release_draw_data()
        • lv_font_get_glyph_width()
        • lv_font_get_line_height()
        • lv_font_set_kerning()
        • lv_font_default()
        • lv_font_montserrat_14
        • lv_font_glyph_dsc_t
        • _lv_font_t
      • lv_font_fmt_txt.h
        • lv_font_fmt_txt_cmap_type_t
        • _lv_font_fmt_txt_cmap_type_t
        • lv_font_fmt_txt_bitmap_format_t
        • lv_font_get_bitmap_fmt_txt()
        • lv_font_get_glyph_dsc_fmt_txt()
        • lv_font_fmt_txt_glyph_dsc_t
        • lv_font_fmt_txt_cmap_t
        • lv_font_fmt_txt_kern_pair_t
        • lv_font_fmt_txt_kern_classes_t
        • lv_font_fmt_txt_dsc_t
      • lv_symbol_def.h
        • @10
    • layouts
      • lv_layout.h
        • lv_layout_update_cb_t
        • lv_layout_t
        • _lv_layout_init()
        • _lv_layout_deinit()
        • lv_layout_register()
        • _lv_layout_apply()
        • lv_layout_dsc_t
      • grid
        • lv_grid.h
      • flex
        • lv_flex.h
    • libs
      • libpng
        • lv_libpng.h
      • fsdrv
        • lv_fsdrv.h
      • ffmpeg
        • lv_ffmpeg.h
      • rle
        • lv_rle.h
      • libjpeg_turbo
        • lv_libjpeg_turbo.h
      • thorvg
        • tvgLoadModule.h
        • tvgTaskScheduler.h
        • tvgSvgSceneBuilder.h
        • tvgCanvas.h
        • tvgRawLoader.h
        • config.h
        • tvgSwRasterTexmap.h
        • tvgXmlParser.h
        • thorvg.h
        • tvgSwCommon.h
        • tvgStr.h
        • tvgSaveModule.h
        • tvgLoader.h
        • tvgIteratorAccessor.h
        • tvgPicture.h
        • tvgFill.h
        • tvgCommon.h
        • tvgPaint.h
        • tvgSwRasterAvx.h
        • tvgFrameModule.h
        • tvgSvgUtil.h
        • tvgArray.h
        • tvgSwRasterC.h
        • tvgScene.h
        • tvgCompressor.h
        • tvgSvgCssStyle.h
        • tvgRender.h
        • tvgShape.h
        • tvgSwRenderer.h
        • tvgSvgLoader.h
        • tvgSwRasterNeon.h
        • tvgMath.h
        • tvgSvgLoaderCommon.h
        • tvgBezier.h
        • tvgSvgPath.h
        • thorvg_capi.h
      • rlottie
        • lv_rlottie.h
      • tjpgd
        • tjpgdcnf.h
        • tjpgd.h
        • lv_tjpgd.h
      • freetype
        • lv_freetype.h
        • ftmodule.h
        • ftoption.h
      • lz4
        • lz4.h
      • gif
        • gifdec_mve.h
        • gifdec.h
        • lv_gif.h
      • bin_decoder
        • lv_bin_decoder.h
      • tiny_ttf
        • lv_tiny_ttf.h
        • stb_rect_pack.h
        • stb_truetype_htcw.h
      • qrcode
        • lv_qrcode.h
        • qrcodegen.h
      • lodepng
        • lodepng.h
        • lv_lodepng.h
      • bmp
        • lv_bmp.h
      • barcode
        • lv_barcode.h
        • code128.h
    • draw
      • lv_draw_triangle.h
        • lv_draw_triangle_dsc_init()
        • lv_draw_triangle()
        • lv_draw_triangle_dsc_t
      • lv_draw_arc.h
        • lv_draw_arc_dsc_init()
        • lv_draw_arc()
        • lv_draw_arc_get_area()
        • lv_draw_arc_dsc_t
      • lv_draw_rect.h
        • lv_draw_rect_dsc_init()
        • lv_draw_fill_dsc_init()
        • lv_draw_border_dsc_init()
        • lv_draw_box_shadow_dsc_init()
        • lv_draw_rect()
        • lv_draw_rect_dsc_t
        • lv_draw_fill_dsc_t
        • lv_draw_border_dsc_t
        • lv_draw_box_shadow_dsc_t
      • lv_draw_image.h
        • lv_draw_image_dsc_t
        • lv_draw_image_core_cb
        • lv_draw_image_dsc_init()
        • lv_draw_image()
        • lv_draw_layer()
        • lv_image_src_get_type()
        • _lv_draw_image_normal_helper()
        • _lv_draw_image_tiled_helper()
        • lv_draw_image_sup_t
        • _lv_draw_image_dsc_t
      • lv_draw_buf.h
        • lv_draw_buf_malloc_cb
        • lv_draw_buf_free_cb
        • lv_draw_buf_align_cb
        • lv_draw_buf_invalidate_cache_cb
        • lv_draw_buf_width_to_stride_cb
        • _lv_draw_buf_init_handlers()
        • lv_draw_buf_get_handlers()
        • lv_draw_buf_align()
        • lv_draw_buf_invalidate_cache()
        • lv_draw_buf_width_to_stride()
        • lv_draw_buf_clear()
        • lv_draw_buf_copy()
        • lv_draw_buf_create()
        • lv_draw_buf_init()
        • lv_draw_buf_dup()
        • lv_draw_buf_reshape()
        • lv_draw_buf_destroy()
        • lv_draw_buf_goto_xy()
        • lv_draw_buf_adjust_stride()
        • lv_draw_buf_premultiply()
        • lv_draw_buf_has_flag()
        • lv_draw_buf_from_image()
        • lv_draw_buf_to_image()
        • lv_draw_buf_t
        • lv_draw_buf_handlers_t
      • lv_image_decoder.h
        • lv_image_src_t
        • lv_image_decoder_dsc_t
        • lv_image_decoder_args_t
        • lv_image_decoder_info_f_t
        • lv_image_decoder_open_f_t
        • lv_image_decoder_get_area_cb_t
        • lv_image_decoder_close_f_t
        • lv_image_cache_data_t
        • lv_image_header_cache_data_t
        • _lv_image_src_t
        • _lv_image_decoder_init()
        • _lv_image_decoder_deinit()
        • lv_image_decoder_get_info()
        • lv_image_decoder_open()
        • lv_image_decoder_get_area()
        • lv_image_decoder_close()
        • lv_image_decoder_create()
        • lv_image_decoder_delete()
        • lv_image_decoder_get_next()
        • lv_image_decoder_set_info_cb()
        • lv_image_decoder_set_open_cb()
        • lv_image_decoder_set_get_area_cb()
        • lv_image_decoder_set_close_cb()
        • lv_image_decoder_set_cache_free_cb()
        • lv_image_decoder_post_process()
        • _lv_image_decoder_args_t
        • _lv_image_decoder_t
        • _lv_image_decoder_cache_data_t
        • _lv_image_decoder_header_cache_data_t
        • _lv_image_decoder_dsc_t
      • lv_image_buf.h
        • lv_image_flags_t
        • _lv_image_flags_t
        • lv_image_compress_t
        • lv_image_buf_set_palette()
        • lv_image_buf_free()
        • _lv_image_buf_get_transformed_area()
        • lv_image_header_init()
        • lv_image_header_t
        • lv_yuv_plane_t
        • lv_yuv_buf_t
        • lv_image_dsc_t
      • lv_draw_vector.h
      • lv_draw.h
        • lv_draw_task_type_t
        • lv_draw_task_state_t
        • lv_draw_init()
        • lv_draw_deinit()
        • lv_draw_create_unit()
        • lv_draw_add_task()
        • lv_draw_finalize_task_creation()
        • lv_draw_dispatch()
        • lv_draw_dispatch_layer()
        • lv_draw_dispatch_wait_for_request()
        • lv_draw_dispatch_request()
        • lv_draw_get_next_available_task()
        • lv_draw_get_dependent_count()
        • lv_draw_layer_create()
        • lv_draw_layer_alloc_buf()
        • lv_draw_layer_go_to_xy()
        • _lv_draw_task_t
        • lv_draw_mask_t
        • _lv_draw_unit_t
        • _lv_layer_t
        • lv_draw_dsc_base_t
        • lv_draw_global_info_t
      • lv_draw_label.h
        • lv_draw_label_hint_t
        • lv_draw_glyph_cb_t
        • lv_draw_glyph_bitmap_format_t
        • lv_draw_label_dsc_init()
        • lv_draw_glyph_dsc_init()
        • lv_draw_label()
        • lv_draw_character()
        • lv_draw_label_iterate_characters()
        • _lv_draw_label_hint_t
        • lv_draw_label_dsc_t
        • lv_draw_glyph_dsc_t
      • lv_draw_mask.h
        • lv_draw_mask_rect_dsc_init()
        • lv_draw_mask_rect()
        • lv_draw_mask_rect_dsc_t
      • lv_draw_line.h
        • lv_draw_line_dsc_init()
        • lv_draw_line()
        • lv_draw_line_dsc_t
      • renesas
        • dave2d
      • sdl
        • lv_draw_sdl.h
      • vg_lite
        • lv_draw_vg_lite.h
        • lv_vg_lite_utils.h
        • lv_vg_lite_path.h
        • lv_vg_lite_math.h
        • lv_draw_vg_lite_type.h
        • lv_vg_lite_decoder.h
      • sw
        • lv_draw_sw.h
        • lv_draw_sw_gradient.h
        • lv_draw_sw_mask.h
        • arm2d
        • blend
      • nxp
        • vglite
        • pxp
    • indev
      • lv_indev_scroll.h
        • _lv_indev_scroll_handler()
        • _lv_indev_scroll_throw_handler()
        • lv_indev_scroll_throw_predict()
        • lv_indev_scroll_get_snap_dist()
      • lv_indev.h
        • lv_indev_read_cb_t
        • lv_indev_type_t
        • lv_indev_state_t
        • lv_indev_mode_t
        • lv_indev_create()
        • lv_indev_delete()
        • lv_indev_get_next()
        • lv_indev_read()
        • lv_indev_read_timer_cb()
        • lv_indev_enable()
        • lv_indev_active()
        • lv_indev_set_type()
        • lv_indev_set_read_cb()
        • lv_indev_set_user_data()
        • lv_indev_set_driver_data()
        • lv_indev_get_type()
        • lv_indev_get_read_cb()
        • lv_indev_get_state()
        • lv_indev_get_group()
        • lv_indev_set_display()
        • lv_indev_get_display()
        • lv_indev_get_user_data()
        • lv_indev_get_driver_data()
        • lv_indev_reset()
        • lv_indev_reset_long_press()
        • lv_indev_set_cursor()
        • lv_indev_set_group()
        • lv_indev_set_button_points()
        • lv_indev_get_point()
        • lv_indev_get_gesture_dir()
        • lv_indev_get_key()
        • lv_indev_get_scroll_dir()
        • lv_indev_get_scroll_obj()
        • lv_indev_get_vect()
        • lv_indev_wait_release()
        • lv_indev_get_active_obj()
        • lv_indev_get_read_timer()
        • lv_indev_set_mode()
        • lv_indev_get_mode()
        • lv_indev_search_obj()
        • lv_indev_add_event_cb()
        • lv_indev_get_event_count()
        • lv_indev_get_event_dsc()
        • lv_indev_remove_event()
        • lv_indev_remove_event_cb_with_user_data()
        • lv_indev_send_event()
        • lv_indev_data_t
    • tick
      • lv_tick.h
        • lv_tick_get_cb_t
        • lv_delay_cb_t
        • lv_tick_inc()
        • lv_tick_get()
        • lv_tick_elaps()
        • lv_delay_ms()
        • lv_tick_set_cb()
        • lv_delay_set_cb()
        • lv_tick_state_t
    • drivers
      • lv_drivers.h
      • evdev
        • lv_evdev.h
      • x11
        • lv_x11.h
      • nuttx
        • lv_nuttx_lcd.h
        • lv_nuttx_entry.h
        • lv_nuttx_cache.h
        • lv_nuttx_profiler.h
        • lv_nuttx_fbdev.h
        • lv_nuttx_libuv.h
        • lv_nuttx_touchscreen.h
      • display
        • st7796
        • tft_espi
        • st7735
        • ili9341
        • st7789
        • lcd
        • drm
        • fb
      • sdl
        • lv_sdl_keyboard.h
        • lv_sdl_window.h
        • lv_sdl_mousewheel.h
        • lv_sdl_mouse.h
      • windows
        • lv_windows_context.h
        • lv_windows_display.h
        • lv_windows_input.h
    • themes
      • lv_theme.h
        • lv_theme_apply_cb_t
        • lv_theme_get_from_obj()
        • lv_theme_apply()
        • lv_theme_set_parent()
        • lv_theme_set_apply_cb()
        • lv_theme_get_font_small()
        • lv_theme_get_font_normal()
        • lv_theme_get_font_large()
        • lv_theme_get_color_primary()
        • lv_theme_get_color_secondary()
        • _lv_theme_t
      • simple
        • lv_theme_simple.h
      • mono
        • lv_theme_mono.h
      • default
        • lv_theme_default.h
    • others
      • observer
        • lv_observer.h
      • ime
        • lv_ime_pinyin.h
      • sysmon
        • lv_sysmon.h
      • snapshot
        • lv_snapshot.h
      • fragment
        • lv_fragment.h
      • vg_lite_tvg
        • vg_lite.h
      • file_explorer
        • lv_file_explorer.h
      • gridnav
        • lv_gridnav.h
      • imgfont
        • lv_imgfont.h
      • monkey
        • lv_monkey.h
    • osal
      • lv_cmsis_rtos2.h
        • lv_thread_t
        • lv_mutex_t
        • lv_thread_sync_t
      • lv_freertos.h
      • lv_os_none.h
        • lv_mutex_t
        • lv_thread_t
        • lv_thread_sync_t
      • lv_rtthread.h
        • lv_thread_t
        • lv_mutex_t
        • lv_thread_sync_t
      • lv_os.h
        • lv_thread_prio_t
        • lv_thread_init()
        • lv_thread_delete()
        • lv_mutex_init()
        • lv_mutex_lock()
        • lv_mutex_lock_isr()
        • lv_mutex_unlock()
        • lv_mutex_delete()
        • lv_thread_sync_init()
        • lv_thread_sync_wait()
        • lv_thread_sync_signal()
        • lv_thread_sync_delete()
      • lv_pthread.h
        • lv_mutex_t
        • lv_thread_t
        • lv_thread_sync_t
      • lv_windows.h
        • lv_thread_t
        • lv_mutex_t
        • lv_thread_sync_t
    • stdlib
      • lv_string.h
        • lv_memcpy()
        • lv_memset()
        • lv_memmove()
        • lv_memzero()
        • lv_strlen()
        • lv_strncpy()
        • lv_strcpy()
        • lv_strcmp()
        • lv_strdup()
      • lv_sprintf.h
        • lv_snprintf()
        • lv_vsnprintf()
      • lv_mem.h
        • lv_mem_pool_t
        • lv_mem_init()
        • lv_mem_deinit()
        • lv_mem_add_pool()
        • lv_mem_remove_pool()
        • lv_malloc()
        • lv_malloc_zeroed()
        • lv_free()
        • lv_realloc()
        • lv_malloc_core()
        • lv_free_core()
        • lv_realloc_core()
        • lv_mem_monitor_core()
        • lv_mem_test_core()
        • lv_mem_test()
        • lv_mem_monitor()
        • lv_mem_monitor_t
      • builtin
        • lv_tlsf.h
    • display
      • lv_display.h
        • lv_display_flush_cb_t
        • lv_display_flush_wait_cb_t
        • lv_display_rotation_t
        • lv_display_render_mode_t
        • lv_screen_load_anim_t
        • lv_display_create()
        • lv_display_delete()
        • lv_display_set_default()
        • lv_display_get_default()
        • lv_display_get_next()
        • lv_display_set_resolution()
        • lv_display_set_physical_resolution()
        • lv_display_set_offset()
        • lv_display_set_rotation()
        • lv_display_set_dpi()
        • lv_display_get_horizontal_resolution()
        • lv_display_get_vertical_resolution()
        • lv_display_get_physical_horizontal_resolution()
        • lv_display_get_physical_vertical_resolution()
        • lv_display_get_offset_x()
        • lv_display_get_offset_y()
        • lv_display_get_rotation()
        • lv_display_get_dpi()
        • lv_display_set_buffers()
        • lv_display_set_draw_buffers()
        • lv_display_set_render_mode()
        • lv_display_set_flush_cb()
        • lv_display_set_flush_wait_cb()
        • lv_display_set_color_format()
        • lv_display_get_color_format()
        • lv_display_set_antialiasing()
        • lv_display_get_antialiasing()
        • lv_display_is_double_buffered()
        • lv_display_get_screen_active()
        • lv_display_get_screen_prev()
        • lv_display_get_layer_top()
        • lv_display_get_layer_sys()
        • lv_display_get_layer_bottom()
        • lv_screen_load()
        • lv_screen_load_anim()
        • lv_screen_active()
        • lv_layer_top()
        • lv_layer_sys()
        • lv_layer_bottom()
        • lv_display_add_event_cb()
        • lv_display_get_event_count()
        • lv_display_get_event_dsc()
        • lv_display_delete_event()
        • lv_display_remove_event_cb_with_user_data()
        • lv_display_send_event()
        • lv_display_set_theme()
        • lv_display_get_theme()
        • lv_display_get_inactive_time()
        • lv_display_trigger_activity()
        • lv_display_enable_invalidation()
        • lv_display_is_invalidation_enabled()
        • lv_display_get_refr_timer()
        • lv_display_delete_refr_timer()
        • lv_display_set_user_data()
        • lv_display_set_driver_data()
        • lv_display_get_user_data()
        • lv_display_get_driver_data()
        • lv_dpx()
        • lv_display_dpx()
    • widgets
      • led
        • lv_led.h
      • bar
        • lv_bar.h
      • roller
        • lv_roller.h
      • arc
        • lv_arc.h
      • slider
        • lv_slider.h
      • canvas
        • lv_canvas.h
      • image
        • lv_image.h
      • menu
        • lv_menu.h
      • dropdown
        • lv_dropdown.h
      • msgbox
        • lv_msgbox.h
      • imagebutton
        • lv_imagebutton.h
      • objx_templ
        • lv_objx_templ.h
      • switch
        • lv_switch.h
      • list
        • lv_list.h
      • calendar
        • lv_calendar.h
        • lv_calendar_header_dropdown.h
        • lv_calendar_header_arrow.h
      • win
        • lv_win.h
      • scale
        • lv_scale.h
      • button
        • lv_button.h
      • spinbox
        • lv_spinbox.h
      • chart
        • lv_chart.h
      • animimage
        • lv_animimage.h
      • table
        • lv_table.h
      • spinner
        • lv_spinner.h
      • buttonmatrix
        • lv_buttonmatrix.h
      • label
        • lv_label.h
      • tabview
        • lv_tabview.h
      • checkbox
        • lv_checkbox.h
      • textarea
        • lv_textarea.h
      • line
        • lv_line.h
      • keyboard
        • lv_keyboard.h
      • tileview
        • lv_tileview.h
      • span
        • lv_span.h
    • misc
      • lv_text.h
        • lv_text_flag_t
        • lv_text_align_t
        • _lv_text_flag_t
        • _lv_text_align_t
        • lv_text_get_size()
        • _lv_text_get_next_line()
        • lv_text_get_width()
        • _lv_text_ins()
        • _lv_text_cut()
        • _lv_text_set_text_vfmt()
        • _lv_text_encoded_letter_next_2()
        • _lv_text_is_break_char()
        • _lv_text_is_a_word()
        • _lv_text_is_marker()
        • _lv_text_encoded_size
        • _lv_text_unicode_to_encoded
        • _lv_text_encoded_conv_wc
        • _lv_text_encoded_next
        • _lv_text_encoded_prev
        • _lv_text_encoded_get_byte_id
        • _lv_text_encoded_get_char_id
        • _lv_text_get_encoded_length
      • lv_utils.h
        • _lv_utils_bsearch()
      • lv_fs.h
        • lv_fs_res_t
        • lv_fs_mode_t
        • lv_fs_drv_t
        • _lv_fs_res_t
        • _lv_fs_mode_t
        • lv_fs_whence_t
        • _lv_fs_init()
        • _lv_fs_deinit()
        • lv_fs_drv_init()
        • lv_fs_drv_register()
        • lv_fs_get_drv()
        • lv_fs_is_ready()
        • lv_fs_open()
        • lv_fs_make_path_from_buffer()
        • lv_fs_close()
        • lv_fs_read()
        • lv_fs_write()
        • lv_fs_seek()
        • lv_fs_tell()
        • lv_fs_dir_open()
        • lv_fs_dir_read()
        • lv_fs_dir_close()
        • lv_fs_get_letters()
        • lv_fs_get_ext()
        • lv_fs_up()
        • lv_fs_get_last()
        • _lv_fs_drv_t
        • lv_fs_file_cache_t
        • lv_fs_file_t
        • lv_fs_path_ex_t
        • lv_fs_dir_t
      • lv_area.h
        • lv_align_t
        • lv_dir_t
        • _lv_align_t
        • _lv_dir_t
        • lv_area_set()
        • lv_area_copy()
        • lv_area_get_width()
        • lv_area_get_height()
        • lv_area_set_width()
        • lv_area_set_height()
        • _lv_area_set_pos()
        • lv_area_get_size()
        • lv_area_increase()
        • lv_area_move()
        • _lv_area_intersect()
        • _lv_area_diff()
        • _lv_area_join()
        • _lv_area_is_point_on()
        • _lv_area_is_on()
        • _lv_area_is_in()
        • _lv_area_is_out()
        • _lv_area_is_equal()
        • lv_area_align()
        • lv_point_transform()
        • lv_point_from_precise()
        • lv_point_to_precise()
        • lv_point_set()
        • lv_point_precise_set()
        • lv_point_swap()
        • lv_point_precise_swap()
        • lv_pct()
        • lv_pct_to_px()
        • lv_point_t
        • lv_point_precise_t
        • lv_area_t
        • lv_area_transform_cache_t
      • lv_profiler_builtin.h
      • lv_color_op.h
        • lv_color_filter_cb_t
        • lv_color_filter_dsc_t
        • lv_color_mix()
        • lv_color_mix32()
        • lv_color_brightness()
        • lv_color_filter_dsc_init()
        • _lv_color_filter_dsc_t
      • lv_palette.h
        • lv_palette_t
        • lv_palette_main()
        • lv_palette_lighten()
        • lv_palette_darken()
      • lv_profiler.h
      • lv_math.h
        • lv_cubic_bezier()
        • lv_bezier3()
        • lv_atan2()
        • lv_pow()
        • lv_map()
        • lv_rand_set_seed()
        • lv_rand()
        • lv_sqrt_res_t
      • lv_style_gen.h
        • lv_style_set_width()
        • lv_style_set_min_width()
        • lv_style_set_max_width()
        • lv_style_set_height()
        • lv_style_set_min_height()
        • lv_style_set_max_height()
        • lv_style_set_length()
        • lv_style_set_x()
        • lv_style_set_y()
        • lv_style_set_align()
        • lv_style_set_transform_width()
        • lv_style_set_transform_height()
        • lv_style_set_translate_x()
        • lv_style_set_translate_y()
        • lv_style_set_transform_scale_x()
        • lv_style_set_transform_scale_y()
        • lv_style_set_transform_rotation()
        • lv_style_set_transform_pivot_x()
        • lv_style_set_transform_pivot_y()
        • lv_style_set_transform_skew_x()
        • lv_style_set_transform_skew_y()
        • lv_style_set_pad_top()
        • lv_style_set_pad_bottom()
        • lv_style_set_pad_left()
        • lv_style_set_pad_right()
        • lv_style_set_pad_row()
        • lv_style_set_pad_column()
        • lv_style_set_margin_top()
        • lv_style_set_margin_bottom()
        • lv_style_set_margin_left()
        • lv_style_set_margin_right()
        • lv_style_set_bg_color()
        • lv_style_set_bg_opa()
        • lv_style_set_bg_grad_color()
        • lv_style_set_bg_grad_dir()
        • lv_style_set_bg_main_stop()
        • lv_style_set_bg_grad_stop()
        • lv_style_set_bg_main_opa()
        • lv_style_set_bg_grad_opa()
        • lv_style_set_bg_grad()
        • lv_style_set_bg_image_src()
        • lv_style_set_bg_image_opa()
        • lv_style_set_bg_image_recolor()
        • lv_style_set_bg_image_recolor_opa()
        • lv_style_set_bg_image_tiled()
        • lv_style_set_border_color()
        • lv_style_set_border_opa()
        • lv_style_set_border_width()
        • lv_style_set_border_side()
        • lv_style_set_border_post()
        • lv_style_set_outline_width()
        • lv_style_set_outline_color()
        • lv_style_set_outline_opa()
        • lv_style_set_outline_pad()
        • lv_style_set_shadow_width()
        • lv_style_set_shadow_offset_x()
        • lv_style_set_shadow_offset_y()
        • lv_style_set_shadow_spread()
        • lv_style_set_shadow_color()
        • lv_style_set_shadow_opa()
        • lv_style_set_image_opa()
        • lv_style_set_image_recolor()
        • lv_style_set_image_recolor_opa()
        • lv_style_set_line_width()
        • lv_style_set_line_dash_width()
        • lv_style_set_line_dash_gap()
        • lv_style_set_line_rounded()
        • lv_style_set_line_color()
        • lv_style_set_line_opa()
        • lv_style_set_arc_width()
        • lv_style_set_arc_rounded()
        • lv_style_set_arc_color()
        • lv_style_set_arc_opa()
        • lv_style_set_arc_image_src()
        • lv_style_set_text_color()
        • lv_style_set_text_opa()
        • lv_style_set_text_font()
        • lv_style_set_text_letter_space()
        • lv_style_set_text_line_space()
        • lv_style_set_text_decor()
        • lv_style_set_text_align()
        • lv_style_set_radius()
        • lv_style_set_clip_corner()
        • lv_style_set_opa()
        • lv_style_set_opa_layered()
        • lv_style_set_color_filter_dsc()
        • lv_style_set_color_filter_opa()
        • lv_style_set_anim()
        • lv_style_set_anim_duration()
        • lv_style_set_transition()
        • lv_style_set_blend_mode()
        • lv_style_set_layout()
        • lv_style_set_base_dir()
      • lv_anim_timeline.h
        • lv_anim_timeline_t
        • lv_anim_timeline_create()
        • lv_anim_timeline_delete()
        • lv_anim_timeline_add()
        • lv_anim_timeline_start()
        • lv_anim_timeline_pause()
        • lv_anim_timeline_set_reverse()
        • lv_anim_timeline_set_progress()
        • lv_anim_timeline_get_playtime()
        • lv_anim_timeline_get_reverse()
        • lv_anim_timeline_get_progress()
      • lv_types.h
        • lv_result_t
        • lv_uintptr_t
        • lv_intptr_t
        • lv_value_precise_t
        • lv_obj_t
        • lv_state_t
        • lv_part_t
        • lv_obj_flag_t
        • lv_obj_class_t
        • lv_group_t
        • lv_key_t
        • lv_display_t
        • lv_layer_t
        • lv_draw_unit_t
        • lv_draw_task_t
        • lv_indev_t
        • lv_event_t
        • lv_timer_t
        • lv_theme_t
        • lv_anim_t
        • lv_font_t
        • lv_image_decoder_t
        • _lv_result_t
      • lv_array.h
        • lv_array_init()
        • lv_array_resize()
        • lv_array_deinit()
        • lv_array_size()
        • lv_array_capacity()
        • lv_array_is_empty()
        • lv_array_is_full()
        • lv_array_copy()
        • lv_array_clear()
        • lv_array_remove()
        • lv_array_erase()
        • lv_array_concat()
        • lv_array_push_back()
        • lv_array_assign()
        • lv_array_at()
        • lv_array_front()
        • lv_array_back()
        • lv_array_t
      • lv_anim.h
        • lv_anim_path_cb_t
        • lv_anim_exec_xcb_t
        • lv_anim_custom_exec_cb_t
        • lv_anim_completed_cb_t
        • lv_anim_start_cb_t
        • lv_anim_get_value_cb_t
        • lv_anim_deleted_cb_t
        • lv_anim_bezier3_para_t
        • lv_anim_enable_t
        • _lv_anim_core_init()
        • _lv_anim_core_deinit()
        • lv_anim_init()
        • lv_anim_set_var()
        • lv_anim_set_exec_cb()
        • lv_anim_set_duration()
        • lv_anim_set_time()
        • lv_anim_set_delay()
        • lv_anim_set_values()
        • lv_anim_set_custom_exec_cb()
        • lv_anim_set_path_cb()
        • lv_anim_set_start_cb()
        • lv_anim_set_get_value_cb()
        • lv_anim_set_completed_cb()
        • lv_anim_set_deleted_cb()
        • lv_anim_set_playback_duration()
        • lv_anim_set_playback_time()
        • lv_anim_set_playback_delay()
        • lv_anim_set_repeat_count()
        • lv_anim_set_repeat_delay()
        • lv_anim_set_early_apply()
        • lv_anim_set_user_data()
        • lv_anim_set_bezier3_param()
        • lv_anim_start()
        • lv_anim_get_delay()
        • lv_anim_get_playtime()
        • lv_anim_get_time()
        • lv_anim_get_repeat_count()
        • lv_anim_get_user_data()
        • lv_anim_delete()
        • lv_anim_delete_all()
        • lv_anim_get()
        • lv_anim_get_timer()
        • lv_anim_custom_delete()
        • lv_anim_custom_get()
        • lv_anim_count_running()
        • lv_anim_speed()
        • lv_anim_speed_clamped()
        • lv_anim_refr_now()
        • lv_anim_path_linear()
        • lv_anim_path_ease_in()
        • lv_anim_path_ease_out()
        • lv_anim_path_ease_in_out()
        • lv_anim_path_overshoot()
        • lv_anim_path_bounce()
        • lv_anim_path_step()
        • lv_anim_path_custom_bezier3()
        • lv_anim_state_t
        • _lv_anim_bezier3_para_t
        • _lv_anim_t
      • lv_bidi.h
        • lv_base_dir_t
        • _lv_base_dir_t
        • lv_bidi_calculate_align()
      • lv_templ.h
      • lv_assert.h
      • lv_timer.h
        • lv_timer_cb_t
        • lv_timer_handler_resume_cb_t
        • _lv_timer_core_init()
        • _lv_timer_core_deinit()
        • lv_timer_handler_run_in_period()
        • lv_timer_periodic_handler()
        • lv_timer_handler_set_resume_cb()
        • lv_timer_create_basic()
        • lv_timer_create()
        • lv_timer_delete()
        • lv_timer_pause()
        • lv_timer_resume()
        • lv_timer_set_cb()
        • lv_timer_set_period()
        • lv_timer_ready()
        • lv_timer_set_repeat_count()
        • lv_timer_set_auto_delete()
        • lv_timer_set_user_data()
        • lv_timer_reset()
        • lv_timer_enable()
        • lv_timer_get_idle()
        • lv_timer_get_time_until_next()
        • lv_timer_get_next()
        • lv_timer_get_user_data()
        • lv_timer_get_paused()
        • _lv_timer_t
        • lv_timer_state_t
      • lv_color.h
        • lv_opa_t
        • lv_color_format_t
        • _lv_opa_t
        • _lv_color_format_t
        • lv_color_format_get_bpp()
        • lv_color_format_get_size()
        • lv_color_format_has_alpha()
        • lv_color_to_32()
        • lv_color_to_int()
        • lv_color_eq()
        • lv_color32_eq()
        • lv_color_hex()
        • lv_color_make()
        • lv_color32_make()
        • lv_color_hex3()
        • lv_color_to_u16()
        • lv_color_to_u32()
        • lv_color_16_16_mix()
        • lv_color_lighten()
        • lv_color_darken()
        • lv_color_hsv_to_rgb()
        • lv_color_rgb_to_hsv()
        • lv_color_to_hsv()
        • lv_color_white()
        • lv_color_black()
        • lv_color_premultiply()
        • lv_color16_premultiply()
        • lv_color_filter_shade
        • lv_color_t
        • lv_color16_t
        • lv_color32_t
        • lv_color_hsv_t
      • lv_style.h
        • lv_blend_mode_t
        • lv_text_decor_t
        • lv_border_side_t
        • lv_grad_dir_t
        • lv_style_prop_t
        • lv_style_res_t
        • _lv_blend_mode_t
        • _lv_text_decor_t
        • _lv_border_side_t
        • _lv_grad_dir_t
        • _lv_style_prop_t
        • _lv_style_res_t
        • lv_style_init()
        • lv_style_reset()
        • lv_style_is_const()
        • lv_style_register_prop()
        • lv_style_get_num_custom_props()
        • lv_style_remove_prop()
        • lv_style_set_prop()
        • lv_style_get_prop()
        • lv_style_transition_dsc_init()
        • lv_style_prop_get_default()
        • lv_style_get_prop_inlined()
        • lv_style_is_empty()
        • _lv_style_get_prop_group()
        • _lv_style_prop_lookup_flags()
        • lv_style_set_size()
        • lv_style_set_pad_all()
        • lv_style_set_pad_hor()
        • lv_style_set_pad_ver()
        • lv_style_set_pad_gap()
        • lv_style_set_transform_scale()
        • lv_style_prop_has_flag()
        • lv_style_const_prop_id_inv
        • lv_gradient_stop_t
        • lv_grad_dsc_t
        • lv_style_value_t
        • lv_style_transition_dsc_t
        • lv_style_const_prop_t
        • lv_style_t
      • lv_lru.h
        • lv_lru_free_cb_t
        • lv_lru_item_t
        • lv_lru_t
        • lv_lru_res_t
        • lv_lru_create()
        • lv_lru_delete()
        • lv_lru_set()
        • lv_lru_get()
        • lv_lru_remove()
        • lv_lru_remove_lru_item()
        • lv_lru_t::items
        • lv_lru_t::access_count
        • lv_lru_t::free_memory
        • lv_lru_t::total_memory
        • lv_lru_t::average_item_length
        • lv_lru_t::hash_table_size
        • lv_lru_t::seed
        • lv_lru_t::value_free
        • lv_lru_t::key_free
        • lv_lru_t::free_items
      • lv_async.h
        • lv_async_cb_t
        • lv_async_call()
        • lv_async_call_cancel()
      • lv_text_ap.h
      • lv_ll.h
        • lv_ll_node_t
        • _lv_ll_init()
        • _lv_ll_ins_head()
        • _lv_ll_ins_prev()
        • _lv_ll_ins_tail()
        • _lv_ll_remove()
        • _lv_ll_clear_custom()
        • _lv_ll_clear()
        • _lv_ll_chg_list()
        • _lv_ll_get_head()
        • _lv_ll_get_tail()
        • _lv_ll_get_next()
        • _lv_ll_get_prev()
        • _lv_ll_get_len()
        • _lv_ll_move_before()
        • _lv_ll_is_empty()
        • lv_ll_t
      • lv_log.h
        • lv_log_level_t
      • lv_event.h
        • lv_event_cb_t
        • lv_event_list_t
        • lv_event_code_t
        • _lv_event_push()
        • _lv_event_pop()
        • lv_event_send()
        • lv_event_add()
        • lv_event_get_count()
        • lv_event_get_dsc()
        • lv_event_dsc_get_cb()
        • lv_event_dsc_get_user_data()
        • lv_event_remove()
        • lv_event_remove_all()
        • lv_event_get_target()
        • lv_event_get_current_target()
        • lv_event_get_code()
        • lv_event_get_param()
        • lv_event_get_user_data()
        • lv_event_stop_bubbling()
        • lv_event_stop_processing()
        • lv_event_register_id()
        • _lv_event_mark_deleted()
        • lv_event_dsc_t
        • _lv_event_t
      • lv_rb.h
        • lv_rb_node_t
        • lv_rb_compare_res_t
        • lv_rb_compare_t
        • lv_rb_color_t
        • lv_rb_init()
        • lv_rb_insert()
        • lv_rb_find()
        • lv_rb_remove_node()
        • lv_rb_remove()
        • lv_rb_drop_node()
        • lv_rb_drop()
        • lv_rb_minimum()
        • lv_rb_maximum()
        • lv_rb_minimum_from()
        • lv_rb_maximum_from()
        • lv_rb_destroy()
        • lv_rb_node_t::parent
        • lv_rb_node_t::left
        • lv_rb_node_t::right
        • lv_rb_node_t::color
        • lv_rb_node_t::data
        • lv_rb_t
      • cache
        • lv_cache_entry.h
        • _lv_cache_lru_rb.h
        • lv_cache.h
        • lv_image_cache.h
    • core
      • lv_global.h
        • lv_global_t
        • lv_global
        • _lv_global_t
      • lv_obj_event.h
        • lv_cover_res_t
        • lv_obj_send_event()
        • lv_obj_event_base()
        • lv_event_get_current_target_obj()
        • lv_event_get_target_obj()
        • lv_obj_add_event_cb()
        • lv_obj_get_event_count()
        • lv_obj_get_event_dsc()
        • lv_obj_remove_event()
        • lv_obj_remove_event_cb()
        • lv_obj_remove_event_cb_with_user_data()
        • lv_event_get_indev()
        • lv_event_get_layer()
        • lv_event_get_old_size()
        • lv_event_get_key()
        • lv_event_get_scroll_anim()
        • lv_event_set_ext_draw_size()
        • lv_event_get_self_size_info()
        • lv_event_get_hit_test_info()
        • lv_event_get_cover_area()
        • lv_event_set_cover_res()
        • lv_event_get_draw_task()
        • lv_hit_test_info_t
        • lv_cover_check_info_t
      • lv_obj_draw.h
        • lv_layer_type_t
        • lv_obj_init_draw_rect_dsc()
        • lv_obj_init_draw_label_dsc()
        • lv_obj_init_draw_image_dsc()
        • lv_obj_init_draw_line_dsc()
        • lv_obj_init_draw_arc_dsc()
        • lv_obj_calculate_ext_draw_size()
        • lv_obj_refresh_ext_draw_size()
        • _lv_obj_get_ext_draw_size()
        • _lv_obj_get_layer_type()
      • lv_obj.h
        • _lv_state_t
        • _lv_part_t
        • _lv_obj_flag_t
        • lv_obj_create()
        • lv_obj_add_flag()
        • lv_obj_remove_flag()
        • lv_obj_update_flag()
        • lv_obj_add_state()
        • lv_obj_remove_state()
        • lv_obj_set_state()
        • lv_obj_set_user_data()
        • lv_obj_has_flag()
        • lv_obj_has_flag_any()
        • lv_obj_get_state()
        • lv_obj_has_state()
        • lv_obj_get_group()
        • lv_obj_get_user_data()
        • lv_obj_allocate_spec_attr()
        • lv_obj_check_type()
        • lv_obj_has_class()
        • lv_obj_get_class()
        • lv_obj_is_valid()
        • lv_obj_class
        • _lv_obj_spec_attr_t
        • _lv_obj_t
      • lv_obj_pos.h
        • lv_obj_set_pos()
        • lv_obj_set_x()
        • lv_obj_set_y()
        • lv_obj_set_size()
        • lv_obj_refr_size()
        • lv_obj_set_width()
        • lv_obj_set_height()
        • lv_obj_set_content_width()
        • lv_obj_set_content_height()
        • lv_obj_set_layout()
        • lv_obj_is_layout_positioned()
        • lv_obj_mark_layout_as_dirty()
        • lv_obj_update_layout()
        • lv_obj_set_align()
        • lv_obj_align()
        • lv_obj_align_to()
        • lv_obj_center()
        • lv_obj_get_coords()
        • lv_obj_get_x()
        • lv_obj_get_x2()
        • lv_obj_get_y()
        • lv_obj_get_y2()
        • lv_obj_get_x_aligned()
        • lv_obj_get_y_aligned()
        • lv_obj_get_width()
        • lv_obj_get_height()
        • lv_obj_get_content_width()
        • lv_obj_get_content_height()
        • lv_obj_get_content_coords()
        • lv_obj_get_self_width()
        • lv_obj_get_self_height()
        • lv_obj_refresh_self_size()
        • lv_obj_refr_pos()
        • lv_obj_move_to()
        • lv_obj_move_children_by()
        • lv_obj_transform_point()
        • lv_obj_get_transformed_area()
        • lv_obj_invalidate_area()
        • lv_obj_invalidate()
        • lv_obj_area_is_visible()
        • lv_obj_is_visible()
        • lv_obj_set_ext_click_area()
        • lv_obj_get_click_area()
        • lv_obj_hit_test()
        • lv_clamp_width()
        • lv_clamp_height()
      • lv_obj_tree.h
        • lv_obj_tree_walk_cb_t
        • lv_obj_tree_walk_res_t
        • lv_obj_delete()
        • lv_obj_clean()
        • lv_obj_delete_delayed()
        • lv_obj_delete_anim_completed_cb()
        • lv_obj_delete_async()
        • lv_obj_set_parent()
        • lv_obj_swap()
        • lv_obj_move_to_index()
        • lv_obj_get_screen()
        • lv_obj_get_display()
        • lv_obj_get_parent()
        • lv_obj_get_child()
        • lv_obj_get_child_by_type()
        • lv_obj_get_sibling()
        • lv_obj_get_sibling_by_type()
        • lv_obj_get_child_count()
        • lv_obj_get_child_count_by_type()
        • lv_obj_get_index()
        • lv_obj_get_index_by_type()
        • lv_obj_tree_walk()
        • lv_obj_dump_tree()
      • lv_obj_scroll.h
        • lv_scrollbar_mode_t
        • lv_scroll_snap_t
        • _lv_scrollbar_mode_t
        • _lv_scroll_snap_t
        • lv_obj_set_scrollbar_mode()
        • lv_obj_set_scroll_dir()
        • lv_obj_set_scroll_snap_x()
        • lv_obj_set_scroll_snap_y()
        • lv_obj_get_scrollbar_mode()
        • lv_obj_get_scroll_dir()
        • lv_obj_get_scroll_snap_x()
        • lv_obj_get_scroll_snap_y()
        • lv_obj_get_scroll_x()
        • lv_obj_get_scroll_y()
        • lv_obj_get_scroll_top()
        • lv_obj_get_scroll_bottom()
        • lv_obj_get_scroll_left()
        • lv_obj_get_scroll_right()
        • lv_obj_get_scroll_end()
        • lv_obj_scroll_by()
        • lv_obj_scroll_by_bounded()
        • lv_obj_scroll_to()
        • lv_obj_scroll_to_x()
        • lv_obj_scroll_to_y()
        • lv_obj_scroll_to_view()
        • lv_obj_scroll_to_view_recursive()
        • _lv_obj_scroll_by_raw()
        • lv_obj_is_scrolling()
        • lv_obj_update_snap()
        • lv_obj_get_scrollbar_area()
        • lv_obj_scrollbar_invalidate()
        • lv_obj_readjust_scroll()
      • lv_obj_style.h
        • lv_style_selector_t
        • _lv_style_state_cmp_t
        • _lv_obj_style_init()
        • _lv_obj_style_deinit()
        • lv_obj_add_style()
        • lv_obj_replace_style()
        • lv_obj_remove_style()
        • lv_obj_remove_style_all()
        • lv_obj_report_style_change()
        • lv_obj_refresh_style()
        • lv_obj_enable_style_refresh()
        • lv_obj_get_style_prop()
        • lv_obj_has_style_prop()
        • lv_obj_set_local_style_prop()
        • lv_obj_get_local_style_prop()
        • lv_obj_remove_local_style_prop()
        • _lv_obj_style_apply_color_filter()
        • _lv_obj_style_create_transition()
        • _lv_obj_style_state_compare()
        • lv_obj_fade_in()
        • lv_obj_fade_out()
        • lv_obj_style_get_selector_state()
        • lv_obj_style_get_selector_part()
        • lv_obj_set_style_pad_all()
        • lv_obj_set_style_pad_hor()
        • lv_obj_set_style_pad_ver()
        • lv_obj_set_style_margin_all()
        • lv_obj_set_style_margin_hor()
        • lv_obj_set_style_margin_ver()
        • lv_obj_set_style_pad_gap()
        • lv_obj_set_style_size()
        • lv_obj_set_style_transform_scale()
        • lv_obj_get_style_space_left()
        • lv_obj_get_style_space_right()
        • lv_obj_get_style_space_top()
        • lv_obj_get_style_space_bottom()
        • lv_obj_calculate_style_text_align()
        • lv_obj_get_style_transform_scale_x_safe()
        • lv_obj_get_style_transform_scale_y_safe()
        • lv_obj_get_style_opa_recursive()
        • _lv_obj_style_t
        • _lv_obj_style_transition_dsc_t
      • lv_refr.h
        • _lv_refr_init()
        • _lv_refr_deinit()
        • lv_refr_now()
        • lv_obj_redraw()
        • _lv_inv_area()
        • _lv_refr_get_disp_refreshing()
        • _lv_refr_set_disp_refreshing()
        • _lv_display_refr_timer()
      • lv_group.h
        • lv_group_focus_cb_t
        • lv_group_edge_cb_t
        • _lv_key_t
        • lv_group_refocus_policy_t
        • _lv_group_init()
        • _lv_group_deinit()
        • lv_group_create()
        • lv_group_delete()
        • lv_group_set_default()
        • lv_group_get_default()
        • lv_group_add_obj()
        • lv_group_swap_obj()
        • lv_group_remove_obj()
        • lv_group_remove_all_objs()
        • lv_group_focus_obj()
        • lv_group_focus_next()
        • lv_group_focus_prev()
        • lv_group_focus_freeze()
        • lv_group_send_data()
        • lv_group_set_focus_cb()
        • lv_group_set_edge_cb()
        • lv_group_set_refocus_policy()
        • lv_group_set_editing()
        • lv_group_set_wrap()
        • lv_group_get_focused()
        • lv_group_get_focus_cb()
        • lv_group_get_edge_cb()
        • lv_group_get_editing()
        • lv_group_get_wrap()
        • lv_group_get_obj_count()
        • lv_group_get_count()
        • lv_group_by_index()
        • _lv_group_t
      • lv_obj_class.h
        • lv_obj_class_event_cb_t
        • lv_obj_class_editable_t
        • lv_obj_class_group_def_t
        • lv_obj_class_theme_inheritable_t
        • lv_obj_class_create_obj()
        • lv_obj_class_init_obj()
        • _lv_obj_destruct()
        • lv_obj_is_editable()
        • lv_obj_is_group_def()
        • _lv_obj_class_t
      • lv_obj_property.h
      • lv_obj_style_gen.h
        • lv_obj_get_style_width()
        • lv_obj_get_style_min_width()
        • lv_obj_get_style_max_width()
        • lv_obj_get_style_height()
        • lv_obj_get_style_min_height()
        • lv_obj_get_style_max_height()
        • lv_obj_get_style_length()
        • lv_obj_get_style_x()
        • lv_obj_get_style_y()
        • lv_obj_get_style_align()
        • lv_obj_get_style_transform_width()
        • lv_obj_get_style_transform_height()
        • lv_obj_get_style_translate_x()
        • lv_obj_get_style_translate_y()
        • lv_obj_get_style_transform_scale_x()
        • lv_obj_get_style_transform_scale_y()
        • lv_obj_get_style_transform_rotation()
        • lv_obj_get_style_transform_pivot_x()
        • lv_obj_get_style_transform_pivot_y()
        • lv_obj_get_style_transform_skew_x()
        • lv_obj_get_style_transform_skew_y()
        • lv_obj_get_style_pad_top()
        • lv_obj_get_style_pad_bottom()
        • lv_obj_get_style_pad_left()
        • lv_obj_get_style_pad_right()
        • lv_obj_get_style_pad_row()
        • lv_obj_get_style_pad_column()
        • lv_obj_get_style_margin_top()
        • lv_obj_get_style_margin_bottom()
        • lv_obj_get_style_margin_left()
        • lv_obj_get_style_margin_right()
        • lv_obj_get_style_bg_color()
        • lv_obj_get_style_bg_color_filtered()
        • lv_obj_get_style_bg_opa()
        • lv_obj_get_style_bg_grad_color()
        • lv_obj_get_style_bg_grad_color_filtered()
        • lv_obj_get_style_bg_grad_dir()
        • lv_obj_get_style_bg_main_stop()
        • lv_obj_get_style_bg_grad_stop()
        • lv_obj_get_style_bg_main_opa()
        • lv_obj_get_style_bg_grad_opa()
        • lv_obj_get_style_bg_grad()
        • lv_obj_get_style_bg_image_src()
        • lv_obj_get_style_bg_image_opa()
        • lv_obj_get_style_bg_image_recolor()
        • lv_obj_get_style_bg_image_recolor_filtered()
        • lv_obj_get_style_bg_image_recolor_opa()
        • lv_obj_get_style_bg_image_tiled()
        • lv_obj_get_style_border_color()
        • lv_obj_get_style_border_color_filtered()
        • lv_obj_get_style_border_opa()
        • lv_obj_get_style_border_width()
        • lv_obj_get_style_border_side()
        • lv_obj_get_style_border_post()
        • lv_obj_get_style_outline_width()
        • lv_obj_get_style_outline_color()
        • lv_obj_get_style_outline_color_filtered()
        • lv_obj_get_style_outline_opa()
        • lv_obj_get_style_outline_pad()
        • lv_obj_get_style_shadow_width()
        • lv_obj_get_style_shadow_offset_x()
        • lv_obj_get_style_shadow_offset_y()
        • lv_obj_get_style_shadow_spread()
        • lv_obj_get_style_shadow_color()
        • lv_obj_get_style_shadow_color_filtered()
        • lv_obj_get_style_shadow_opa()
        • lv_obj_get_style_image_opa()
        • lv_obj_get_style_image_recolor()
        • lv_obj_get_style_image_recolor_filtered()
        • lv_obj_get_style_image_recolor_opa()
        • lv_obj_get_style_line_width()
        • lv_obj_get_style_line_dash_width()
        • lv_obj_get_style_line_dash_gap()
        • lv_obj_get_style_line_rounded()
        • lv_obj_get_style_line_color()
        • lv_obj_get_style_line_color_filtered()
        • lv_obj_get_style_line_opa()
        • lv_obj_get_style_arc_width()
        • lv_obj_get_style_arc_rounded()
        • lv_obj_get_style_arc_color()
        • lv_obj_get_style_arc_color_filtered()
        • lv_obj_get_style_arc_opa()
        • lv_obj_get_style_arc_image_src()
        • lv_obj_get_style_text_color()
        • lv_obj_get_style_text_color_filtered()
        • lv_obj_get_style_text_opa()
        • lv_obj_get_style_text_font()
        • lv_obj_get_style_text_letter_space()
        • lv_obj_get_style_text_line_space()
        • lv_obj_get_style_text_decor()
        • lv_obj_get_style_text_align()
        • lv_obj_get_style_radius()
        • lv_obj_get_style_clip_corner()
        • lv_obj_get_style_opa()
        • lv_obj_get_style_opa_layered()
        • lv_obj_get_style_color_filter_dsc()
        • lv_obj_get_style_color_filter_opa()
        • lv_obj_get_style_anim()
        • lv_obj_get_style_anim_duration()
        • lv_obj_get_style_transition()
        • lv_obj_get_style_blend_mode()
        • lv_obj_get_style_layout()
        • lv_obj_get_style_base_dir()
        • lv_obj_get_style_flex_flow()
        • lv_obj_get_style_flex_main_place()
        • lv_obj_get_style_flex_cross_place()
        • lv_obj_get_style_flex_track_place()
        • lv_obj_get_style_flex_grow()
        • lv_obj_get_style_grid_column_dsc_array()
        • lv_obj_get_style_grid_column_align()
        • lv_obj_get_style_grid_row_dsc_array()
        • lv_obj_get_style_grid_row_align()
        • lv_obj_get_style_grid_cell_column_pos()
        • lv_obj_get_style_grid_cell_x_align()
        • lv_obj_get_style_grid_cell_column_span()
        • lv_obj_get_style_grid_cell_row_pos()
        • lv_obj_get_style_grid_cell_y_align()
        • lv_obj_get_style_grid_cell_row_span()
        • lv_obj_set_style_width()
        • lv_obj_set_style_min_width()
        • lv_obj_set_style_max_width()
        • lv_obj_set_style_height()
        • lv_obj_set_style_min_height()
        • lv_obj_set_style_max_height()
        • lv_obj_set_style_length()
        • lv_obj_set_style_x()
        • lv_obj_set_style_y()
        • lv_obj_set_style_align()
        • lv_obj_set_style_transform_width()
        • lv_obj_set_style_transform_height()
        • lv_obj_set_style_translate_x()
        • lv_obj_set_style_translate_y()
        • lv_obj_set_style_transform_scale_x()
        • lv_obj_set_style_transform_scale_y()
        • lv_obj_set_style_transform_rotation()
        • lv_obj_set_style_transform_pivot_x()
        • lv_obj_set_style_transform_pivot_y()
        • lv_obj_set_style_transform_skew_x()
        • lv_obj_set_style_transform_skew_y()
        • lv_obj_set_style_pad_top()
        • lv_obj_set_style_pad_bottom()
        • lv_obj_set_style_pad_left()
        • lv_obj_set_style_pad_right()
        • lv_obj_set_style_pad_row()
        • lv_obj_set_style_pad_column()
        • lv_obj_set_style_margin_top()
        • lv_obj_set_style_margin_bottom()
        • lv_obj_set_style_margin_left()
        • lv_obj_set_style_margin_right()
        • lv_obj_set_style_bg_color()
        • lv_obj_set_style_bg_opa()
        • lv_obj_set_style_bg_grad_color()
        • lv_obj_set_style_bg_grad_dir()
        • lv_obj_set_style_bg_main_stop()
        • lv_obj_set_style_bg_grad_stop()
        • lv_obj_set_style_bg_main_opa()
        • lv_obj_set_style_bg_grad_opa()
        • lv_obj_set_style_bg_grad()
        • lv_obj_set_style_bg_image_src()
        • lv_obj_set_style_bg_image_opa()
        • lv_obj_set_style_bg_image_recolor()
        • lv_obj_set_style_bg_image_recolor_opa()
        • lv_obj_set_style_bg_image_tiled()
        • lv_obj_set_style_border_color()
        • lv_obj_set_style_border_opa()
        • lv_obj_set_style_border_width()
        • lv_obj_set_style_border_side()
        • lv_obj_set_style_border_post()
        • lv_obj_set_style_outline_width()
        • lv_obj_set_style_outline_color()
        • lv_obj_set_style_outline_opa()
        • lv_obj_set_style_outline_pad()
        • lv_obj_set_style_shadow_width()
        • lv_obj_set_style_shadow_offset_x()
        • lv_obj_set_style_shadow_offset_y()
        • lv_obj_set_style_shadow_spread()
        • lv_obj_set_style_shadow_color()
        • lv_obj_set_style_shadow_opa()
        • lv_obj_set_style_image_opa()
        • lv_obj_set_style_image_recolor()
        • lv_obj_set_style_image_recolor_opa()
        • lv_obj_set_style_line_width()
        • lv_obj_set_style_line_dash_width()
        • lv_obj_set_style_line_dash_gap()
        • lv_obj_set_style_line_rounded()
        • lv_obj_set_style_line_color()
        • lv_obj_set_style_line_opa()
        • lv_obj_set_style_arc_width()
        • lv_obj_set_style_arc_rounded()
        • lv_obj_set_style_arc_color()
        • lv_obj_set_style_arc_opa()
        • lv_obj_set_style_arc_image_src()
        • lv_obj_set_style_text_color()
        • lv_obj_set_style_text_opa()
        • lv_obj_set_style_text_font()
        • lv_obj_set_style_text_letter_space()
        • lv_obj_set_style_text_line_space()
        • lv_obj_set_style_text_decor()
        • lv_obj_set_style_text_align()
        • lv_obj_set_style_radius()
        • lv_obj_set_style_clip_corner()
        • lv_obj_set_style_opa()
        • lv_obj_set_style_opa_layered()
        • lv_obj_set_style_color_filter_dsc()
        • lv_obj_set_style_color_filter_opa()
        • lv_obj_set_style_anim()
        • lv_obj_set_style_anim_duration()
        • lv_obj_set_style_transition()
        • lv_obj_set_style_blend_mode()
        • lv_obj_set_style_layout()
        • lv_obj_set_style_base_dir()
        • lv_obj_set_style_flex_flow()
        • lv_obj_set_style_flex_main_place()
        • lv_obj_set_style_flex_cross_place()
        • lv_obj_set_style_flex_track_place()
        • lv_obj_set_style_flex_grow()
        • lv_obj_set_style_grid_column_dsc_array()
        • lv_obj_set_style_grid_column_align()
        • lv_obj_set_style_grid_row_dsc_array()
        • lv_obj_set_style_grid_row_align()
        • lv_obj_set_style_grid_cell_column_pos()
        • lv_obj_set_style_grid_cell_x_align()
        • lv_obj_set_style_grid_cell_column_span()
        • lv_obj_set_style_grid_cell_row_pos()
        • lv_obj_set_style_grid_cell_y_align()
        • lv_obj_set_style_grid_cell_row_span()
  • Contributing
    • Introduction
    • Ways to contribute
    • Feature development workflow
      • Terminology
      • Schedule
      • Feature Development Issue
      • Pitch Files
      • Workflow
    • Pull request
      • From GitHub
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    • Developer Certification of Origin (DCO)
      • Overview
      • Accepted licenses and copyright notices
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        • Use code from online source
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  • Coding style
    • File template
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  • Changelog
    • v9.0.0
      • Migration guide
        • IMPORTANT
        • Main new features
        • General API changes
        • New color format management
        • Display API
        • Indev API
    • Others
    • v8.3
  • Roadmap
    • v9
      • Schedule
      • Naming and API
      • Architecture
      • Styles
      • Widgets
      • Animations
    • Planned in general
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