Qt 5.15
All Qt Examples
Qt 5.15.8 Reference Documentation

All Qt Examples

Coffee Machine Example
Getting Started Programming with Qt Quick	A tutorial for Qt Quick based on an alarms application.
Qt Quick Demo - Calqlatr	A QML app designed for portrait devices that uses custom components, animated with AnimationController, and JavaScript for the application logic.
Qt Quick Demo - Clocks	A QML clock application that demonstrates using a ListView type to display data generated by a ListModel and a SpringAnimation type to animate images.
Qt Quick Demo - Maroon in Trouble	A Qt Quick game for touch devices that uses SpriteSequence, ParticleSystem, Emitter, and Wander types to animate objects and the SoundEffect type to play sound effects.
Qt Quick Demo - Photo Surface	A QML app for touch devices that uses a Repeater with a FolderListModel to access content in a folder, and a PinchArea that contains a MouseArea to handle pinch gestures on the fetched content.
Qt Quick Demo - Photo Viewer	A QML photo viewer that that uses XmlListModel and XmlRole to download Flickr feeds, and Package to display the photos in different views.
Qt Quick Demo - RSS News	A QML RSS news reader that uses XmlListModel and XmlRole to download XML data, ListModel and ListElement to create a category list, and ListView to display the data.
Qt Quick Demo - Same Game	A QML implementation of the popular puzzle game by Kuniaki Moribe.
Qt Quick Demo - StocQt	A configurable stock chart for the NASDAQ-100.
Qt Quick Demo - Tweet Search	A Twitter search client with 3D effects.

Qt 3D

Qt 3D: Advanced Custom Material QML Example	Demonstrates creating advanced materials in Qt3D
Qt 3D: Basic Shapes C++ Example	Shows four basic shapes that Qt 3D offers and sets up a mesh for each of them
Qt 3D: Multi Viewport QML Example	A QML example that demonstrates rendering a Scenegraph from multiple viewports
Qt 3D: PBR Materials QML Example	A QML application that demonstrates using PBR materials
Qt 3D: Planets QML Example	Demonstrates combining Qt 3D rendering and Qt Quick 2 elements
Qt 3D: Scene2D QML Example	A QML application that demonstrates using Qt Quick 2 within a Qt 3D scene
Qt 3D: Scene3D QML Example	A QML application that demonstrates visualizing a 3D scene
Qt 3D: Scene3D QML with Widgets Example	A QWidget-based application with a QML scene containing a 3D scene
Qt 3D: Scene3DView QML Example	A QML application that demonstrates visualizing multiple 3D scenes using Scene3D and Scene3DView
Qt 3D: Shadow Map QML Example	A Qt 3D QML application that illustrates how to render a scene in Qt 3D with shadows
Qt 3D: Simple C++ Example	A C++ application that demonstrates how to render a scene in Qt 3D
Qt 3D: Simple Custom Material QML Example	Demonstrates creating a custom material in Qt 3D
Qt 3D: Simple QML Example	A QML application that demonstrates how to render a scene in Qt 3D
Qt 3D: Wave QML Example	A QML application that demonstrates using vertex and geometry shaders
Qt 3D: Wireframe QML Example	A Qt 3D QML application that implements a single-pass wireframe rendering method

Qt Assistant Manual

Remote Control Example	Using and controlling Qt Assistant as a help viewer
Simple Text Viewer Example	Using Qt Assistant as a customized help viewer for your application

Qt Bluetooth

Bluetooth Chat Example	An example showing communication through Bluetooth
Bluetooth File Transfer Example	An example showing the use of Bluetooth Object Push Profile (OPP)
Bluetooth Low Energy Heart Rate Game	A game demonstrating the interaction with a Bluetooth Low Energy Heart Rate device/service
Bluetooth Low Energy Heart Rate Server Example	An example demonstrating how to set up and advertise a GATT service. The example demonstrates the use of the Qt Bluetooth Low Energy classes related to peripheral (slave) functionality
Bluetooth Low Energy Scanner Example	An application designed to browse the content of Bluetooth Low Energy peripheral devices. The example demonstrates the use of all Qt Bluetooth Low Energy classes
Bluetooth QML Chat Example	An example demonstrating communication through Bluetooth QML API
Bluetooth QML Ping Pong example	A QML example showing Bluetooth communication
Bluetooth Scanner Example	An example showing how to locate Bluetooth devices
QML Bluetooth Picture Push Example	An example showing the use Bluetooth Object Push Profile (OPP)
QML Bluetooth Scanner Example	A QML example about locating Bluetooth devices

Qt Charts

AreaChart Example	Example shows how to create a simple area chart
Audio Example	This example shows the drawing of dynamic data (microphone input)
BarChart Example	Example shows how to create a bar chart
BarModelMapper Example	This example shows how to use QAbstractItemModel derived model as the data for the bar series
Box and Whiskers Example	Example shows how to create a box-and-whiskers chart
Callout Example	This example shows how to draw an additional element (a callout) on top of the chart
Candlestick Chart Example	Shows how to create a candlestick chart
Chart Themes Example	Example shows the look and feel of the different built-in themes
Custom Chart Example	This example shows how to customize the appearance of the different elements on a chart
DateTimeAxis Example	Example shows how to use QLineChart with QDateTimeAxis
Donut Chart Breakdown Example	This example shows how to use create a donut breakdown chart using QPieSeries API
Donutchart Example	This example shows how to create a simple donut chart, and do some customizations to a slice
Dynamic Spline Example	This example shows how to draw dynamic data
HorizontalBarChart Example	Example shows how to create a horizontal bar chart
HorizontalPercentBarChart Example	Example shows how to create a simple horizontal percent bar chart
HorizontalStackedBarChart Example	Example shows how to create a simple stacked horizontal bar chart
Legend Example	This example shows how to detach the legend from the chart and how to attach it back
LegendMarkers Example	Example shows how to make use of legend markers
Line and BarChart Example	Example shows how to combine different charts and set the axes
LineChart Example	Example shows how to create a simple line chart
Logarithmic Axis Example	Example shows how to use QLogValueAxis
Model Data Example	This example shows how to use the QAbstractItemModel derived model as the data for the series
Multiple Axes Example	Example shows how to create a simple chart with two vertical axes. One for each series
Nested Donuts Example	This example shows how to create a nested donuts chart using the QPieSeries API
OpenGL Accelerated Series Example	Example shows how to enable OpenGL acceleration for QLineSeries and QScatterSeries
PercentBarChart Example	Example shows how to create a simple percent bar chart
Pie Chart Customization Example	This example shows how the look and feel of a pie chart can be customized
Piechart Drilldown Example	Example shows how to implement a piechart with drilldown effect
Piechart Example	Example shows how to create a simple pie chart and do some customizations to a pie slice
Polar Chart Example	Example shows how to create a simple polar chart with multiple different series
Qml Axes	This is a demonstration of how to use axes in your QML application
Qml Charts Example	This basic demonstration shows how to use the different chart types by using qml
Qml Custom Legend	This example shows you how to create your own custom legend
Qml Customizations	This application shows you how to customize different visual properties of a ChartView and series
Qml F1 Legends	This application demonstrates how to use XmlListModel as a datasource for a Chart
Qml Oscilloscope	Example shows how to implement application with strict performance requirements using the Qt Charts QML API
Qml Polar Chart	This is a demonstration on how to use a polar chart in your QML application
Qml Weather	This is a basic demonstration showing how to use the different chart types by using qml
Scatter Interactions Example	This example shows how to create a simple scatter chart and how to interact with the chart
ScatterChart Example	Example shows how to create a simple scatter chart
SplineChart Example	Example shows how to create a simple spline chart
StackedBarChart Drilldown Example	Example shows how to implement drilldown using a stacked barchart
StackedBarChart Example	Example shows how to create a simple stacked bar chart
Temperature Records Example	Example shows how to create a bar chart with negative bars
Zoom Line Example	Example shows how to create your own custom zooming effect

Qt Concurrent

Image Scaling Example	Demonstrates how to asynchronously scale images
Map Example	Demonstrates how to scale images synchronously
QtConcurrent Progress Dialog Example	Demonstrates how to monitor the progress of the active processes
QtConcurrent Word Count Example	Demonstrates how to use the map-reduce algorithm
Run Function Example	Demonstrates how to run standard functions concurrently

Qt Core

Contiguous Cache Example	Contiguous Cache example shows how to use QContiguousCache to manage memory usage for very large models. In some environments memory is limited and, even when it isn't, users still dislike an application using excessive memory. Using QContiguousCache to manage a list, rather than loading the entire list into memory, allows the application to limit the amount of memory it uses, regardless of the size of the data set it accesses
Custom Type Example	Custom Type example shows how to integrate a custom type into Qt's meta-object system
JSON Save Game Example	JSON Save Game example demonstrates how to save and load a small game using QJsonDocument, QJsonObject and QJsonArray
Local Fortune Client Example	Demonstrates using QLocalSocket for a simple local service client
Local Fortune Server Example	Demonstrates using QLocalServer and QLocalSocket for serving a simple local service
MIME Type Browser Example	Shows the hierarchy of MIME types and can be used to determine the MIME type of a file
Mandelbrot Example	Mandelbrot example demonstrates multi-thread programming using Qt. It shows how to use a worker thread to perform heavy computations without blocking the main thread's event loop
Queued Custom Type Example	Demonstrates multi-thread programming using Qt
Semaphores Example	Demonstrates multi-thread programming using Qt
Shared Memory Example	Demonstrates doing inter-process communication using shared memory with the QSharedMemory class
Wait Conditions Example	Demonstrates multi-thread programming using Qt

Qt D-Bus

D-Bus Chat Example	Demonstrates communication among instances of an application
D-Bus Complex Ping Pong Example	Demonstrates usage of the Qt D-Bus typesystem
D-Bus List Names Example	Shows how to access the D-Bus bus daemon service
D-Bus Ping Pong Example	Demonstrates a simple message system using D-Bus
D-Bus Remote Controlled Car Example	Shows how to use Qt D-Bus to control a car from another application

Qt Data Visualization

Audiolevels Example	Simple application showing real time audio data
Axis Range Dragging With Labels Example	Implementing a custom input handler to support axis dragging
Bars Example	Using Q3DBars in a widget application
Custom Input Example	Implementing custom input handler in a widget application
Custom Items Example	Adding custom items to a surface graph
Custom Proxy Example	Using Q3DBars with a custom proxy
Item Model Example	Using an item model as data source for Q3DBars
Qt Quick 2 Axis Dragging Example	Implementing axis dragging in QML
Qt Quick 2 Axis Formatter Example	Example of a hybrid C++ and QML application demonstrating different axis formatters
Qt Quick 2 Bars Example	Using Bars3D in a QML application
Qt Quick 2 Custom Input Example	Customizing input in a QML application
Qt Quick 2 Legend Example	Showing graph legend in a QML application
Qt Quick 2 Multiple Graphs Example	Showing multiple graphs simultaneously in a QML application
Qt Quick 2 Oscilloscope Example	Example of a hybrid C++ and QML application
Qt Quick 2 Scatter Example	Using Scatter3D in a QML application
Qt Quick 2 Spectrogram Example	Showing spectrogram graph in a QML application
Qt Quick 2 Surface Example	Using Surface3D in a QML application
Qt Quick 2 Surface Multiseries Example	Using multiple series with Surface3D in a QML application
Rotations Example	Using rotated scatter items
Scatter Example	Using Q3DScatter in a widget application
Surface Example	Using Q3DSurface in a widget application
Textured Surface Example	Using texture with Q3DSurface
Volumetric rendering Example	Rendering volumetric objects

Qt Designer Manual

Calculator Builder Example	Creating a user interface from a Qt Designer form at run-time
Calculator Form Example	Using a form created with Qt Designer in an application
Container Extension Example	Creating a custom multi-page plugin for Qt Designer
Custom Widget Plugin Example	Creating a custom widget plugin for Qt Designer
Task Menu Extension Example	Creating a custom widget plugin for Qt Designer and providing custom task menu entries that are associated with the plugin
World Time Clock Builder Example	Creating forms with Qt Designer that contain custom widgets that can be dynamically generated at run-time
World Time Clock Plugin Example	Creating a custom widget plugin for Qt Designer that uses signals and slots

Qt GUI

Analog Clock Window Example	Analog Clock Window example shows how to draw the contents of a custom window
Hello Vulkan Cubes Example	Shows the basics of using QVulkanWindow
Hello Vulkan Texture Vulkan Example	Shows the basics of rendering with textures in a QVulkanWindow
Hello Vulkan Triangle Example	Shows the basics of rendering with QVulkanWindow and the Vulkan API
Hello Vulkan Widget Example	Shows the usage of QVulkanWindow in QWidget applications
Hello Vulkan Window Example	Shows the basics of using QVulkanWindow
OpenGL Window Example	This example shows how to create a minimal QWindow based application for the purpose of using OpenGL
Raster Window Example	This example shows how to create a minimal QWindow based application using QPainter for rendering

Qt Gamepad

Qt Gamepad Configure Buttons Example	Enables configuring the gamepad buttons
Qt Gamepad Key Navigation Example	Demonstrates how to use navigation keys on the gamepad
Qt Gamepad Mouse Item Example	Depicts joystick movement using a pointer
Qt Gamepad Qt Quick Example	Demonstrates how to interact with the gamepad using QML
Qt Gamepad Simple Example	A simple example demonstrating the APIs in use

Qt Help

Context-Sensitive Help Example

Using the QHelpEngineCore class to implement context-sensitive help for applications

Qt Linguist Manual

Arrow Pad Example	Understanding the Qt Linguist contexts concept and using two or more languages
Hello tr() Example	Translating a small Hello World program to Latin
Troll Print Example	Updating translations for later releases

Qt Location

Map Viewer (QML)	Map Viewer example shows how to display and interact with a map, search for an address, and find driving directions
MapItemView Transitions (QML)	How to use transitions together with MapItemView
Minimal Map (QML)	Minimum code to display a map using Qt Quick
Places (QML)	Places example demonstrates how to search for Places and access related content
Places List (QML)	Places List example demonstrates how to search for and display a list of places using a ListView
Places Map (QML)	Places Map example demonstrates how to search for and display a list of places on a map using a MapItemView
Plane Spotter (QML)	Plane Spotter example demonstrates the tight integration of location and positioning data types into QML

Qt Multimedia

Audio Devices Example	Testing the available audio devices and their configuration
Audio Input Example	Recording audio using the QAudioInput class
Audio Output Example	Enabling audio playback using the QAudioOutput class
Audio Recorder Example	Discovering the available devices and supported codecs
AudioEngine Example	Enabling 3D sound control using the Qt Audio Engine API
Camera Example	Camera Example shows how to use the API to capture a still image or video
Declarative Radio Example	Demonstrates using the Radio QML type from Qt Multimedia
Media Player Example	Playing audio and video
QML Camera Example	Camera Example shows how to use the API to capture a still image or video
QML Video Example	Transforming video and camera viewfinder content
QML Video Shader Effects Example	Applying shader effects on video and camera viewfinder content
Spectrum Example	Analyzing a raw audio stream using the FFTReal library
Video Graphics Item Example	Streaming video on a graphics scene
Video Widget Example	Implementing a video player widget

Qt NFC

Annotated URL Example	An example showing reading from formatted NFC Data Exchange Format (NDEF) messages
NDEF Editor Example	An example about reading and writing NFC Data Exchange Format (NDEF) messages to NFC Forum Tags
QML CorkBoard Example	A QML example about displaying NFC Data Exchange Format (NDEF) messages
QML Poster Example	A QML example about reading and displaying NFC Data Exchange Format (NDEF) messages

Qt Network

Blocking Fortune Client Example	Demonstrates how to create a client for a network service
Broadcast Receiver Example	Demonstrates how to receive information broadcasted over a local network
Broadcast Sender Example	Demonstrates how to broadcast information to multiple clients on a local network
DTLS client	This example demonstrates how to implement client-side DTLS connections
DTLS server	This examples demonstrates how to implement a simple DTLS server
Fortune Client Example	Demonstrates how to create a client for a network service
Fortune Server Example	Demonstrates how to create a server for a network service
Google Suggest Example	Obtains the list of search recommendations by the Google search engine
HTTP Example	Demonstrates a simple HTTP client
Loopback Example	Demonstrates the client-server communication on a local host
Multicast Receiver Example	Demonstrates how to receive information sent to a multicast group
Multicast Sender Example	Demonstrates how to send messages to a multicast group
Network Chat Example	Demonstrates a stateful peer-to-peer Chat client
Network Download Example	Demonstrates how to use networking APIs for multiple downloads
Network Download Manager Example	Demonstrates how to use the networking APIs for multiple downloads
Secure Socket Client Example	Demonstrates how to communicate over an encrypted (SSL) connection
Threaded Fortune Server Example	Threaded Fortune Server example shows how to create a server for a simple network service that uses threads to handle requests from different clients. It is intended to be run alongside the Fortune Client example
Torrent Example	Demonstrates complex TCP/IP operations

Qt Network Authorization

Reddit Example	Demonstrates authenticating with OAuth 2 to access Reddit
Twitter Timeline Example	Demonstrates authenticating with OAuth to access a Twitter timeline

Qt OpenGL

2D Painting Example	2D Painting example shows how QPainter and QOpenGLWidget can be used together to display accelerated 2D graphics on supported hardware
Cube OpenGL ES 2.0 example	Cube OpenGL ES 2.0 example shows how to write mouse rotateable textured 3D cube using OpenGL ES 2.0 with Qt. It shows how to handle polygon geometries efficiently and how to write simple vertex and fragment shader for programmable graphics pipeline. In addition it shows how to use quaternions for representing 3D object orientation
Hello GL2 Example	Hello GL2 example demonstrates the basic use of the OpenGL-related classes provided with Qt
Hello GLES3 Example	Hello GLES3 example demonstrates easy, cross-platform usage of OpenGL ES 3.0 functions via QOpenGLExtraFunctions in an application that works identically on desktop platforms with OpenGL 3.3 and mobile/embedded devices with OpenGL ES 3.0
Textures Example	Textures example demonstrates the use of Qt's image classes as textures in applications that use both OpenGL and Qt to display graphics

Qt Positioning

GeoFlickr (QML)	GeoFlickr example shows how to use the user's current position to fetch local content from a web service
Log File Position Source (C++)	Logfile Position Source shows how to create and work with a custom NMEA position source, for platforms without GPS
SatelliteInfo (C++/QML)	SatelliteInfo example shows how the available satellites at the user's current position and marks the satellites currently contributing to the GPS fix as pink
Weather Info (C++/QML)	Weather Info example shows how to use the user's current position to retrieve local content from a web service in a C++ plugin for QML

Qt QML

C++ Extensions: Network Access Manager Factory Example	Implements a custom network access manager for the QML engine
Extending QML - Adding Types Example	Exporting C++ Classes
Extending QML - Attached Properties Example	Attached Properties
Extending QML - Binding Example	Binding
Extending QML - Default Property Example	Default Property
Extending QML - Extension Objects Example	Extension Objects
Extending QML - Grouped Properties Example	Grouped Properties
Extending QML - Inheritance and Coercion Example	C++ Inheritance and Coercion
Extending QML - Methods Example	Methods Support
Extending QML - Object and List Property Types Example	Exporting C++ Properties
Extending QML - Property Value Source Example	Property Value Source
Extending QML - Signal Support Example	Signal Support
QML Example - Dynamic Scene	This example demonstrates creating components dynamically
QML Examples - Internationalization	This is an internationalization example
QML Plugin Example	This example creates a C++ plugin extension by subclassing QQmlEngineExtensionPlugin
Qt Quick Examples - XMLHttpRequest	This is a collection of XMLHttpRequest examples
Writing QML Extensions with C++	Tutorial about extending QML with Qt C++

Qt Quick

C++ Extensions: Image Provider Example	How to load images in QML with QQuickImageProvider
C++ Extensions: Image Response Provider Example	How to load images asynchronously in QML
Models and Views: AbstractItemModel Example	Shows how to use a QAbstractItemModel subclass as a model in QML
Models and Views: Object ListModel Example	Shows how to use a QList as a model in QML
Models and Views: String ListModel Example	Shows how to use a QStringList as a model in QML
QML Advanced Tutorial 1 - Creating the Game Canvas and Blocks
QML Advanced Tutorial 2 - Populating the Game Canvas
QML Advanced Tutorial 3 - Implementing the Game Logic
QML Advanced Tutorial 4 - Finishing Touches
QML Dynamic View Ordering Tutorial 1 - A Simple ListView and Delegate
QML Dynamic View Ordering Tutorial 2 - Dragging View Items
QML Dynamic View Ordering Tutorial 3 - Moving Dragged Items
QML Dynamic View Ordering Tutorial 4 - Sorting Items
QQuickRenderControl Example	Shows how to render a Qt Quick scene into a texture that is then used by a non-Quick based OpenGL renderer
Qt Quick Examples - Accessibility	This example demonstrates the implementation of accessible buttons
Qt Quick Examples - Animation	This is a collection of QML Animation examples
Qt Quick Examples - Canvas	This is a collection of QML Canvas examples
Qt Quick Examples - Drag and Drop	This is a collection of QML drag and drop examples
Qt Quick Examples - Image Elements	This is a collection of QML examples relating to image types
Qt Quick Examples - Key Interaction	This is a collection of QML keyboard interaction examples
Qt Quick Examples - Local Storage	A collection of QML local storage examples
Qt Quick Examples - MouseArea	This is an example of the MouseArea type in QML
Qt Quick Examples - Positioners	This is a collection of QML Positioner examples
Qt Quick Examples - Right to Left	This is a collection of QML Right to Left examples
Qt Quick Examples - Shader Effects	A Qt Quick example demonstrating the use of shader effects
Qt Quick Examples - Shapes	A Qt Quick example demonstrating the use of shape items
Qt Quick Examples - Text	This is a collection of QML examples relating to text
Qt Quick Examples - Threading	This is a collection of QML multithreading examples
Qt Quick Examples - Touch Interaction	A collection of QML Touch Interaction examples
Qt Quick Examples - Views	This is a collection of QML model-view examples
Qt Quick Examples - Window and Screen	This example demonstrates the Window and Screen types in QML
Qt Quick Examples - externaldraganddrop	This is an example of drag-and-drop among QML applications
Qt Quick Layouts - Basic Example	Demonstrates how to use layout types to arrange a UI
Qt Quick Particles Examples - Affectors	This is a collection of examples using Affectors in the QML particle system
Qt Quick Particles Examples - CustomParticle	This is a collection of examples using CustomParticle in the QML particle system
Qt Quick Particles Examples - Emitters	This is a collection of examples using Emitters in the QML particle system
Qt Quick Particles Examples - Image Particles	This is a collection of examples using Affectors in the QML particle system
Qt Quick Particles Examples - System	This is a collection of examples using Affectors in the QML particle system
Qt Quick TableView examples - Conway’s Game of Life	Conway’s Game of Life example shows how the QML TableView type can be used to display a C++ model that the user can pan around
Qt Quick TableViews examples - Pixelator	Pixelator example shows how a QML TableView and a delegate can be used for custom table models
Qt Quick Widgets Example	Demonstrates how to mix QML with a Qt Widgets application using the QQuickWidget class
Scene Graph - Custom Geometry	Shows how to implement a custom geometry in the Qt Quick Scene Graph
Scene Graph - Custom Rendering with QSGRenderNode	Shows how to integrate drawing via the native graphics API with the Qt Quick scene graph
Scene Graph - Direct3D 11 Under QML	Shows how to render directly with Direct3D 11 under a Qt Quick scene
Scene Graph - Graph	Demonstrates how one can combine custom materials and geometries under a single QQuickItem
Scene Graph - Metal Texture Import	Shows how to use a texture created directly with Metal
Scene Graph - Metal Under QML	Shows how to render directly with Metal under a Qt Quick scene
Scene Graph - OpenGL Under QML	Shows how to render OpenGL under a Qt Quick scene
Scene Graph - Painted Item	Shows how to implement QPainter-based custom scenegraph items
Scene Graph - Rendering FBOs	Shows how to use FramebufferObjects with Qt Quick
Scene Graph - Rendering FBOs in a thread	Shows how to use FramebufferObjects in a thread together with Qt Quick
Scene Graph - Simple Material	Shows how to define a scene graph material to fill a shape
Scene Graph - Two Texture Providers	Shows how to combine two textures from two texture providers in a custom scene graph node
Scene Graph - Vulkan Texture Import	Shows how to use a texture created directly with use a texture created directly withulkan
Scene Graph - Vulkan Under QML	Shows how to render directly with vulkan under a Qt Quick scene
TabWidget Example	TabWidget example shows how to create a tabwidget using property aliases and QML Object default properties
Threaded ListModel Example	Threaded ListModel example shows how to use a ListModel from multiple threads using WorkerScript
UI Components: Dial Control Example	Dial Control Example shows how to create a speedometer-type dial
UI Components: Flipable Example	Flipable Example shows an item that flips whenever clicked, rotating around the y-axis
UI Components: Scroll Bar Example	Scroll Bar Example shows how to use scroll bars on a flickable element

Qt Quick Controls

Qt Quick Controls - Chat Tutorial	Tutorial about writing a basic chat client using Qt Quick Controls
Qt Quick Controls - Contact List	A QML app using Qt Quick Controls and a C++ class that implements a simple contact list
Qt Quick Controls - Flat Style	A QML app using Qt Quick Controls and a QML plugin with customized controls
Qt Quick Controls - Gallery	A gallery of controls
Qt Quick Controls - Imagine Style Example: Automotive	An automotive user interface using custom Imagine style assets
Qt Quick Controls - Imagine Style Example: Music Player	An audio player user interface using custom Imagine style assets
Qt Quick Controls - Side Panel	A persistent side panel with Drawer
Qt Quick Controls - Swipe to Remove	Demonstrates removal of list items by swipe gesture
Qt Quick Controls - Text Editor	A QML app using Qt Quick Controls and a C++ class to provide a fully-functional rich-text editor application
Qt Quick Controls - Wearable Demo	Demonstrates an application launcher designed for wearable devices

Qt Quick Controls 1

Qt Quick Controls 1 - Calendar Example	Demonstrates the use of Calendar control
Qt Quick Controls 1 - File System Browser Example	An example for the TreeView control
Qt Quick Controls 1 - Gallery	A collection of components for a classic desktop-style UI
Qt Quick Controls 1 - Styles Example	Demonstrates custom styles
Qt Quick Controls 1 - Table View Example	An example for the TableView control
Qt Quick Controls 1 - Text Editor Example	A QML app using Qt Quick Controls and a C++ class to provide a fully-functional rich-text editor application
Qt Quick Controls 1 - Touch Gallery	Demonstrates UI controls for a touch interface
Qt Quick Controls 1 - UI Forms	Demonstrates how to separate the application logic from the UI

Qt Quick Dialogs

Qt Quick System Dialog Examples

This example demonstrates the system dialog types in QML

Qt Quick Extras

Qt Quick Extras - Dashboard	A car dashboard created using several CircularGauge controls
Qt Quick Extras - Flat	An interactive showcase of the flat style
Qt Quick Extras - Gallery	An interactive showcase of the various controls

Qt SCXML

Qt SCXML Calculator Example	A widget-based application that implements the Calculator example presented in the SCXML Specification
Qt SCXML Calculator QML Example	A Qt Quick application that implements the Calculator example presented in the SCXML Specification
Qt SCXML FTP Client Example	Implements a simple FTP client using a state machine
Qt SCXML Invoke Example (Dynamic)	Invokes a dynamically loaded nested state machine
Qt SCXML Invoke Example (Static)	Invokes a compiled nested state machine
Qt SCXML Media Player Example (Dynamic)	A widget-based application that sends data to and receives it from a dynamically loaded ECMAScript data model
Qt SCXML Media Player Example (Static)	A widget-based application that sends data to and receives it from a compiled ECMAScript data model
Qt SCXML Media Player QML Example (C++ Data Model)	Sends data to and receives it from a C++ data model
Qt SCXML Media Player QML Example (Dynamic)	A Qt Quick application that sends data to and receives it from a dynamically loaded ECMAScript data model
Qt SCXML Media Player QML Example (Static)	A Qt Quick application that sends data to and receives it from a compiled ECMAScript data model
Qt SCXML Pinball Example	Encapsulates the internal logic of an application in an SCXML file
Qt SCXML Sudoku Example	Presents the use of SCXML in a sudoku game
Qt SCXML Traffic Light Example (Dynamic)	A widget-based application that uses a dynamically loaded state machine to implement a traffic light
Qt SCXML Traffic Light Example (Static)	A widget-based application that uses a compiled state machine to implement a traffic light
Qt SCXML Traffic Light QML Example (Dynamic)	A Qt Quick application that uses a dynamically loaded state machine to implement a traffic light
Qt SCXML Traffic Light QML Example (Simple)	A Qt Quick application that uses a compiled state machine to implement a simplified traffic light
Qt SCXML Traffic Light QML Example (Static)	A Qt Quick application that uses a compiled state machine to implement a traffic light

Qt SQL

Books	Shows how to use Qt SQL classes with a model/view framework
Cached Table Example	Cached Table example shows how a table view can be used to access a database, caching any changes to the data until the user explicitly submits them using a push button
Drill Down Example	Drill Down example shows how to read data from a database as well as submit changes, using the QSqlRelationalTableModel and QDataWidgetMapper classes
Master Detail Example	Master Detail Example shows how to present data from different data sources in the same application. The album titles, and the corresponding artists and release dates, are kept in a database, while each album's tracks are stored in an XML file
Query Model Example	Query Model example shows how to make customized versions of data obtained from a SQL query, using a model that encapsulates the query and table views to display the results
Relational Table Model Example	Relational Table Model example shows how to use table views with a relational model to visualize the relations between items in a database
SQL Browser	SQL Browser example shows how a data browser can be used to visualize the results of SQL statements on a live database
SQL Widget Mapper Example	SQL Widget Mapper example shows how to use a map information from a database to widgets on a form
Table Model Example	Table Model example shows how to use a specialized SQL table model with table views to edit information in a database

Qt SVG

SVG Generator Example
SVG Viewer Example
Text Object Example

Qt Script

Context2D Example
Default Prototypes Example
Hello Script Example

Qt Sensors

Qt Sensors - Accel Bubble	AccelBubble example demonstrates the Accelerometer QML type
Qt Sensors - C++ Sensor Gestures Example	Sensor gesture example demonstrates the steps for creating a C++ application that uses sensor gestures and the included shake sensor
Qt Sensors - Explorer QML Example	Demonstrates how to read the meta-data of available sensors
Qt Sensors - Grue Sensor Example	Qt Sensors - Grue sensor example demonstrates all the steps from creating a new sensor to using it
Qt Sensors - Maze QML Example	Maze example demonstrates the TiltSensor QML type
Qt Sensors - QML example	QtSensors - QML example demonstrates the QML sensors types in the QtSensors 5 import
Qt Sensors - SensorGesture QML Type example	Demonstrates the use of SensorGesture QML type
Qt Sensors - ShakeIt QML Example	Sensor gesture example demonstrates the steps for creating a QML application that uses sensor gestures and the included shake sensor

Qt Serial Bus

CAN Bus example	Example sends and receives CAN bus frames
Modbus Master example	Example implements a Modbus master application
Modbus Slave example	Example implements a Modbus slave application

Qt Serial Port

Blocking Master Example	Shows how to use the synchronous API of QSerialPort in a worker thread
Blocking Slave Example	Shows how to use the synchronous API of QSerialPort in a non-GUI thread
Command Line Enumerator Example	Shows how to get information about serial devices in a system
Command Line Reader Async Example	Shows how to receive data asynchronously over serial port
Command Line Reader Sync Example	Shows how to receive data synchronously over serial port
Command Line Writer Async Example	Shows how to send data asynchronously over serial port
Command Line Writer Sync Example	Shows how to send data synchronously over serial port
Enumerator Example	Shows how to display information about serial devices in a system
Terminal Example	Shows how to use various features of QSerialPort

Qt Speech

Hello Speak Example

Hello Speak example reads out a small piece of text

Qt Test

Chapter 1: Writing a Unit Test	How to write a unit test
Chapter 2: Data Driven Testing	How to create data driven tests
Chapter 3: Simulating GUI Events	Howe to simulate GUI events
Chapter 4: Replaying GUI Events	How to replay GUI events
Chapter 5: Writing a Benchmark	How to write a benchmark

Qt UI Tools

Multiple Inheritance Example	Using a form created with Qt Designer in an application
Text Finder Example	Dynamically loading .ui files using QUiLoader

Qt Virtual Keyboard

Qt Quick Virtual Keyboard - Basic Example

This is a basic QML example that uses the virtual keyboard

Qt Wayland Compositor

Qt Wayland Compositor Examples - IVI Compositor	IVI Compositor is an example that demonstrates how to use the IviApplication extension
Qt Wayland Compositor Examples - Minimal QML	Minimal QML is a simple example that demonstrates how to write a Wayland compositor in QML
Qt Wayland Compositor Examples - Multi Output	Multi Output is an example that demonstrates a compositor with multiple outputs
Qt Wayland Compositor Examples - Multi Screen	Multi Screen is a desktop-style Wayland compositor for multiple screens
Qt Wayland Compositor Examples - Overview Compositor	Overview Compositor shows how to switch between clients in a grid
Qt Wayland Compositor Examples - Pure QML	Pure QML is an example that demonstrates how to write a Wayland compositor in pure QML
Qt Wayland Compositor Examples - QWindow Compositor	QWindow Compositor is an example that demonstrates how to write a Wayland compositor in C++
Qt Wayland Compositor Examples - Sever Side Decoration Compositor	Server Side Decoration Compositor is a simple example that demonstrates server side window decorations on xdg-shell
Qt Wayland Compositor Examples - Spanning Screens	Spanning Screens is an example that demonstrates how to let Wayland clients span multiple screens

Qt WebChannel

Qt WebChannel ChatClient HTML Example	A HTML/JavaScript client that communicates over a WebSocket with a QWebChannel server
Qt WebChannel ChatClient QML Example	A QML client that communicates over a WebSocket with a QWebChannel server
Qt WebChannel ChatServer Example	A simple chat server implemented using the QWebChannel C++ API
Qt WebChannel Standalone Example	A simple chat between a server and a remote client running in a browser

Qt WebEngine

PDF Viewer Example	Renders PDF documents
WebEngine Action Example	A simple browser implemented using WebEngineActions
WebEngine Content Manipulation Example	Demonstrates how to load and manipulate web content
WebEngine Cookie Browser Example	A cookie browser based on Qt WebEngine Widgets
WebEngine Lifecycle Example	Freezes and discards background tabs to reduce CPU and memory usage
WebEngine Markdown Editor Example	Demonstrates how to integrate a web engine in a hybrid desktop application
WebEngine Notifications Example	Demonstrates how to pass HTML5 web notifications to users
WebEngine Qt Quick Custom Dialogs Example	Customizes UI elements of Qt WebEngine's dialogs
WebEngine Qt Quick Minimal Example	Displays a web page using the Qt Quick integration of Qt WebEngine
WebEngine Quick Nano Browser	A web browser implemented using the WebEngineView QML type
WebEngine Recipe Browser	A small hybrid application based on the WebEngineView QML type and Qt Quick Controls 2
WebEngine StyleSheet Browser Example	Demonstrates how to inject CSS into web pages using user scripts
WebEngine Widgets Html2Pdf Example	Converts web pages to PDF documents using Qt WebEngine
WebEngine Widgets Maps Example	Demonstrates how to handle geolocation requests
WebEngine Widgets Minimal Example	Displays a web page using Qt WebEngine Widgets
WebEngine Widgets PrintMe Example	Demonstrates how to print web pages using Qt WebEngine Widgets
WebEngine Widgets Simple Browser Example	A simple browser based on Qt WebEngine Widgets
WebEngine Widgets Spellchecker Example	Integrates a spellchecker into a simple HTML form
WebEngine Widgets Video Player Example	Displays full screen video using QWebEngineView
WebEngine Widgets WebUI Example	Displays HTML over a custom scheme

Qt WebSockets

Echo Client Example	Describes how to use the WebSocket API for creating a simple echo client
Echo Server Example	Shows how to create a simple server application that sends back the messages it receives
QML WebSocket Client Example	Explains how to program a QML WebSocket client example
QML WebSocket Server Example	A simple example that shows how to use a QML WebSocketServer
SSL Echo Client Example	Shows how to use the QWebSocket class to implement an echo client over a secure connection (wss)
SSL Echo Server Example	Shows how to use the QWebSocketServer class for implementing a simple echo server over secure sockets (wss)
Simple Chat Example	Shows how to use the QWebSocket and QWebSocketServer classes for creating a minimalistic chat application over the WebSocket protocol

Qt Widgets

40000 Chips	Visualizes a huge graphic view scene with 40000 chip items
Address Book Example	Address book example shows how to use proxy models to display different views onto data from a single model
Affine Transformations	Demonstrates how affine transformations in QPainter works
Analog Clock Example	Analog Clock example shows how to draw the contents of a custom widget
Anchor Layout Example	Demonstrates anchor layout in a graphics view scene
Animated Tiles Example	Animated Tiles example animates items in a graphics scene
Application Example	Application example shows how to implement a standard GUI application with menus, toolbars, and a status bar. The example itself is a simple text editor program built around QPlainTextEdit
Basic Drawing Example	Basic Drawing example shows how to display basic graphics primitives in a variety of styles using the QPainter class
Basic Graphics Layouts Example	Demonstrates how to create basic graphics layout
Basic Layouts Example	Shows how to use the standard layout managers
Basic Sort/Filter Model Example	Basic Sort/Filter Model example illustrates how to use QSortFilterProxyModel to perform basic sorting and filtering
Blur Picker Effect Example	Demonstrates how to apply graphical effects on items in the view
Border Layout Example	Shows how to arrange child widgets along a border
Boxes	Combines advanced OpenGL rendering with the Graphics View framework
Calculator Example	Example shows how to use signals and slots to implement the functionality of a calculator widget, and how to use QGridLayout to place child widgets in a grid
Calendar Example	Calendar example shows how to create rich text content and display it using a rich text editor
Calendar Widget Example	Calendar Widget example shows use of QCalendarWidget
Character Map Example	Character Map example shows how to create a custom widget that can both display its own content and respond to user input
Chart Example	Chart example shows how to create a custom view for the model/view framework
Class Wizard Example	Class Wizard example shows how to implement linear wizards using QWizard
Code Editor Example	Code Editor example shows how to create a simple editor that has line numbers and that highlights the current line
Colliding Mice Example	Demonstrates how to animate items on a graphics view
Color Editor Factory Example	This example shows how to create an editor that can be used by a QItemDelegate
Combo Widget Mapper Example	Combo Widget Mapper example shows how to use a custom delegate to map information from a model to specific widgets on a form
Completer Example	Completer example shows how to provide string-completion facilities for an input widget based on data provided by a model
Composition Modes	Demonstrates how Composition Modes work in QPainter
Concentric Circles Example	Demonstrates the improved quality that antialiasing and floating point precision gives
Custom Completer Example	Custom Completer example shows how to provide string-completion facilities for an input widget based on data provided by a model. The completer pops up suggestions for possible words based on the first three characters input by the user and the user's choice of word is inserted into the TextEdit using QTextCursor
Custom Sort/Filter Model Example	Custom Sort/Filter Model example illustrates how to subclass QSortFilterProxyModel to perform advanced sorting and filtering
Diagram Scene Example	Demonstrate how to use the Graphics View framework
Digital Clock Example	Digital Clock example shows how to use QLCDNumber to display a number with LCD-like digits
Dir View Example	This example demonstrates the usage of a tree view, and smooth flicking on a touchscreen
Dock Widgets Example	Dock Widgets example shows how to add dock windows to an application. It also shows how to use Qt's rich text engine
Drag and Drop Puzzle Example	Drag and Drop Puzzle example demonstrates a way of using the drag and drop system with item view widgets
Drag and Drop Robot Example	Demonstrates how to drag and drop items in a graphics view
Draggable Icons Example	Draggable Icons example shows how to drag and drop image data between widgets in the same application, and between different applications
Draggable Text Example	Illustrates how to drag and drop text between widgets
Drop Site Example	Example shows how to distinguish the various MIME formats available in a drag and drop operation
Dynamic Layouts Example	Shows how to re-orient widgets in running applications
Easing Curves Example	Easing Curves example shows how to use easing curves to control the speed of an animation
Echo Plugin Example	This example shows how to create a Qt plugin
Editable Tree Model Example	This example shows how to implement a simple item-based tree model that can be used with other classes the model/view framework
Elastic Nodes Example	Demonstrates how to interact with graphical items in a scene
Elided Label Example	This example creates a widget similar to QLabel, that elides the last visible line, if the text is too long to fit the widget's geometry
Embedded Dialogs	Demonstrates how to embed dialogs into a graphics view
Event Transitions Example	Event Transitions example shows how to use event transitions, a feature of The State Machine Framework
Extension Example	Extension example shows how to add an extension to a QDialog using the QAbstractButton::toggled() signal and the QWidget::setVisible() slot
Factorial States Example	Factorial States example shows how to use The State Machine Framework to calculate the factorial of an integer
Fade Message Effect Example	Demonstrates how to apply effects on items in the view
Fetch More Example	Fetch More example shows how to add items to an item view model on demand
Find Files Example	A dialog for finding files in a specified folder
Finger Paint Example	Shows the use of a touchscreen to make a simple painting application
Flow Layout Example	Shows how to arrange widgets for different window sizes
Font Sampler Example	Font Sampler example shows how to preview and print multi-page documents
Fridge Magnets Example	Fridge Magnets example illustrates how to move around several types of MIME-encoded data with drag and drop
Frozen Column Example	This example demonstrates how to freeze a column within a QTableView
Getting Started Programming with Qt Widgets	A tutorial for Qt Widgets based on a notepad application
Gradients	Shows how gradients can be used with QPainter
Graphics View Flow Layout Example	Demonstrates flow layout on a graphics view scene
Group Box Example	Group Box example shows how to use the different kinds of group boxes in Qt
I18N Example	Internationalization (I18N) example demonstrates Qt's support for translated text. Developers can write the initial application text in one language, and translations can be provided later without any modifications to the code. It also demonstrates how to detect the system language settings and show the UI in the appropriate language
Icons Example	Icons example shows how QIcon can generate pixmaps reflecting an icon's state, mode and size
Image Composition Example	Shows how composition modes work in QPainter
Image Gestures Example	Demonstrates the use of simple gestures in a widget
Image Viewer Example	Example shows how to combine QLabel and QScrollArea to display an image
Interview	This example demonstrates the usage of the model/view framework
Item Views Puzzle Example	Puzzle example shows how to enable drag and drop with a custom model to allow items to be transferred between a view and another widget
License Wizard Example	License Wizard example shows how to implement complex wizards in Qt
Line Edits Example	Line Edits example demonstrates the many ways that QLineEdit can be used, and shows the effects of various properties and validators on the input and output supplied by the user
MDI Example	MDI example shows how to implement a Multiple Document Interface using Qt's QMdiArea class
Main Window	Main Window example shows Qt's extensive support for tool bars, dock windows, menus, and other standard application features
Menus Example	Menus example demonstrates how menus can be used in a main window application
Mouse Button Tester	'Mouse Button Tester' example demonstrates how to reimplement mouse events within a custom class. You can also use this program to verify that Qt is actually receiving mouse events from your mouse
Move Blocks Example	Move Blocks example shows how to animate items in a QGraphicsScene using a QStateMachine with a custom transition
Movie Example	Movie example demonstrates how to use QMovie and QLabel to display animations
Order Form Example	Order Form example shows how to generate rich text documents by combining a simple template with data input by the user in a dialog
Pad Navigator Example	Demonstrates how to create animated user interface
Painter Paths Example	Painter Paths example shows how painter paths can be used to beuild complex shapes for rendering
Part 1 - Designing the User Interface	Describes how to code the user interface of the Address Book Example. This first part covers the design of the basic graphical user interface (GUI) for our address book application
Part 2 - Adding Addresses	Describes the code for inserting records in the Address Book Example
Part 3 - Navigating between Entries	Explains the code that enables navigating the contacts
Part 4 - Editing and Removing Addresses	Explains how to add edit and remove functionality
Part 5 - Adding a Find Function	Describes how to add a find function
Part 6 - Loading and Saving	Describes how to add save and load functionality
Part 7 - Additional Features	Describes how to export data in VCard format
Path Stroking	Path Stroking example shows various types of pens that can be used with QPainter
Pinch Zoom Example	Shows how to recognize a gesture
Ping Pong States Example	Ping Pong States example shows how to use parallel states together with custom events and transitions in The State Machine Framework
Pixelator Example	Pixelator example shows how delegates can be used to customize the way that items are rendered in standard item views
Plug & Paint Basic Tools Example	A plugin providing the basic tools for painting functionality
Plug & Paint Example	Demonstrates how to extend Qt applications using plugins
Plug & Paint Extra Filters Example	A plugin providing the extra filters
QRegularExpression Example	QRegularExpression example shows how regular expressions in Qt are applied to text by providing an environment in which new regular expressions can be created and tested on custom text strings
Regular Expressions Example	Regular Expressions (RegExp) example shows how regular expressions in Qt are applied to text by providing an environment in which new regular expressions can be created and tested on custom text strings
Rogue Example	Rogue example shows how to use the Qt state machine for event handling
SDI Example	SDI example shows how to create a Single Document Interface. It uses a number of top-level windows to display the contents of different text files
Screenshot Example	Screenshot example shows how to take a screenshot of the desktop
Scribble Example	Scribble example shows how to reimplement some of QWidget's event handlers to receive the events generated for the application's widgets
Settings Editor Example	Settings Editor example shows how Qt's standard settings support is used in an application by providing an editor that enables the user to view the settings for installed applications, and modify those that can be edited
Shaped Clock Example	Shaped Clock example shows how to apply a translucent background and a widget mask to a top-level widget to produce a shaped window
Simple Anchor Layout Example	Demonstrates anchor layout on a graphics view scene
Simple DOM Model Example	Simple DOM Model example shows how an existing class can be adapted for use with the model/view framework
Simple Tree Model Example	Simple Tree Model example shows how to use a hierarchical model with Qt's standard view classes
Simple Widget Mapper Example	Simple Widget Mapper example shows how to use a widget mapper to display data from a model in a collection of widgets
Sliders Example	Sliders example shows how to use the different types of sliders available in Qt: QSlider, QScrollBar and QDial
Spin Box Delegate Example	Spin Box Delegate example shows how to create an editor for a custom delegate in the model/view framework by reusing a standard Qt editor widget
Spin Boxes Example	Spin Boxes example shows how to use the many different types of spin boxes available in Qt, from a simple QSpinBox widget to more complex editors like the QDateTimeEdit widget
Spreadsheet	Spreadsheet example shows how to create a simple spreadsheet application
Standard Dialogs Example	Standard Dialogs example shows the standard dialogs that are provided by Qt
Star Delegate Example	Star Delegate example shows how to create a delegate that can paint itself and that supports editing
States Example	States example shows how to use the Qt state machine to play animations
Stickman Example	Stickman example shows how to animate transitions in a state machine to implement key frame animations
Style Plugin Example	This example shows how to create a plugin that extends Qt with a new GUI look and feel
Style Sheet Example	Style Sheet Example shows how to use style sheets
Styles Example	Styles example illustrates how to create custom widget drawing styles using Qt, and demonstrates Qt's predefined styles
Sub-Attaq	This example shows Qt's ability to combine the animation framework and the state machine framework to create a game
Syntax Highlighter Example	Syntax Highlighter example shows how to perform simple syntax highlighting
System Tray Icon Example	System Tray Icon example shows how to add an icon with a menu and popup messages to a desktop environment's system tray
Tab Dialog Example	Tab Dialog example shows how to construct a tab dialog using the QTabWidget class
Tablet Example	This example shows how to use a Wacom tablet in Qt applications
Tetrix Example	Tetrix example is a Qt version of the classic Tetrix game
Text Codecs Example	How to import and export text using text codecs
Text Edit	Text Edit example shows Qt's rich text editing facilities in action
Tool Tips Example	Tool Tips example shows how to provide static and dynamic tool tips for an application's widgets
Touch Dials Example	Shows how to apply touch to a set of standard Qt widgets
Touch Knobs Example	Shows how to create custom controls that accept touch input
Traffic Light Example	Traffic Light example shows how to use The State Machine Framework to implement the control flow of a traffic light
Transformations Example	Transformations example shows how transformations influence the way that QPainter renders graphics primitives
Tree Model Completer Example	Tree Model Completer example shows how to provide completion facilities for a hierarchical model, using a period as the separator to access Child, GrandChild and GrandGrandChild level objects
Trivial Wizard Example	Trivial Wizard example illustrates how to create a linear three-page registration wizard using three instances of QWizardPage and one instance of QWizard
Two-way Button Example	Two-way button example shows how to use The State Machine Framework to implement a simple state machine that toggles the current state when a button is clicked
Undo Framework	This example shows Qt's undo framework in action
Undo Framework Example	This example shows how to implement undo/redo functionality with the Qt undo framework
Validators Example	Validators example shows the signal emission behavior of input validators
Vector Deformation	Demonstrates how to manipulate the elements of a QPainterPath
Weather Anchor Layout Example	Demonstrates anchor layout on a graphics view scene
Widgets Gallery Example	Widgets Gallery example shows widgets relevant for designing UIs
Widgets Tutorial - Child Widgets
Widgets Tutorial - Creating a Window
Widgets Tutorial - Nested Layouts
Widgets Tutorial - Using Layouts
Wiggly Example	Wiggly example shows how to animate a widget using QBasicTimer and timerEvent(). In addition, the example demonstrates how to use QFontMetrics to determine the size of text on screen
Window Flags Example	Window Flags example shows how to use the window flags available in Qt

Qt XML

DOM Bookmarks Example	Provides a reader for XML Bookmark Exchange Language files
QXmlStream Bookmarks Example	Demonstrates how to read and write to XBEL files
XML Stream Lint Example	A commandline tool reading from an input file and writing to the standard output file

Qt XML Patterns

C++ Source Code Analyzer Example	Using XQuery and the xmlpatterns command line utility to query C++ source code
File System Example	Using Qt XML Patterns for querying non-XML data that is modeled to look like XML
Recipes Example	Using Qt XML Patterns to query XML data loaded from a file
XML Schema Validation Example	Using Qt XML Patterns to validate XML with a W3C XML Schema