Licenses Used in Qt▲
Qt contains some code that is not provided under the GNU Lesser General Public License (LGPL) or the Qt Commercial License, but rather under specific licenses from the original authors.
The Qt Company gratefully acknowledges these and other contributions to Qt. We recommend that programs that use Qt also acknowledge these contributions, and quote these license statements in an appendix to the documentation.
You only need to comply with (and acknowledge) the licenses of the third-party components that you are using with your application. Click the name of the component to see the licensing details.
Third-party Licenses
The following table lists parts (modules) of Qt 6.5.3 that incorporate code licensed under third-party open-source licenses:
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Calqlatr: A Qt Quick app designed for portrait devices that uses custom components, animated with AnimationController, and JavaScript for the application logic.
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Coffee Machine: A Qt Quick application with a state-based custom user interface.
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Dice: A dice throwing application that demonstrates using Qt Quick 3D Physics and Qt Quick 3D.
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Document Viewer: A Widgets application to display and print Json, text and PDF files. Demonstrates various features to use in widget applications: Using QSettings, query and save user preferences, manage file histories and control cursor behavior when hovering over widgets.
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FX & Material Showroom: Demonstrates material and effects capabilities of Qt Quick 3D. This example demonstrates how you can use particle effects and materials in Qt Quick 3D.
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Getting Started Programming with Qt Quick: A tutorial for Qt Quick based on an alarms application.
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In-App purchasing demo: A complete mobile application that demonstrates purchasing in-app products.
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Media Player Example: Playing audio and video using Qt Quick.
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Photo Surface: A QML app for touch devices that uses a Repeater with a FolderListModel to access content in a folder, and a PinchHandler to handle pinch gestures on the fetched content.
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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.
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Qt Quick Demo - RESTful Color Palette API client: Example of how to create a RESTful API QML client.
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Qt Quick Demo - RSS News: A QML RSS news reader that uses XmlListModel and XmlListModelRole custom QML types to download XML data, ListModel and ListElement to create a category list, and ListView to display the data.
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Qt Quick Demo - StocQt: A configurable stock chart for the NASDAQ-100.
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Robot Arm Example: Demonstrates how to add a C++ backend to a 3D project from Qt Design Studio. This example demonstrates adding a C++ backend to a 3D project created in Qt Design Studio. The example itself consists of an interactive industrial robot arm in a Qt Quick 3D scene. The 2D UI to control the robot arm is implement using Qt Quick Controls.
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Thermostat: A user interface for a home thermostat, implemented in Qt Quick. It demonstrates how to create responsive applications that scale from large desktop displays to mobile and small embedded displays.
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To Do List Example: A QML implementation of to do list application that demonstrates how to create application thats looks native on any platform.
Active Qt▲
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COM App Example (ActiveQt): The COM App example shows how to use ActiveQt to develop a Qt application that can be automated via COM. Different QObject based classes are exposed as COM objects that communicate with the GUI of the running Qt application. The APIs of those COM objects has been designed to resemble the APIs of standard COM applications; i.e. those from Microsoft Office.
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Qutlook Example (ActiveQt): The Qutlook example demonstrates the use of ActiveQt to automate Outlook. The example makes use of the dumpcpp tool to generate a C++ namespace for the type library describing the Outlook Object Model.
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Simple Example (ActiveQt): The Simple example demonstrates the use of QAxBindable and QAxFactory.
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Wrapper Example (ActiveQt): The Wrapper example demonstrates how to export existing QWidget classes as ActiveX controls, and the use of QAxFactory together with the QAXFACTORY_EXPORT() macro. ActiveX controls in this example are the standard button classes QPushButton, QCheckBox and QRadioButton as provided by Qt.
Qt 3D▲
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Qt 3D: Basic Shapes C++ Example: Shows four basic shapes that Qt 3D offers and sets up a mesh for each of them.
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Qt 3D: Multi Viewport QML Example: A QML example that demonstrates rendering a Scenegraph from multiple viewports.
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Qt 3D: PBR Materials QML Example: A QML application that demonstrates using PBR materials.
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Qt 3D: Simple C++ Example: A C++ application that demonstrates how to render a scene in Qt 3D.
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Qt 3D: Simple Custom Material QML Example: Demonstrates creating a custom material in Qt 3D.
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Qt 3D: Simple QML Example: A QML application that demonstrates how to render a scene in Qt 3D.
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Qt 3D: Wireframe QML Example: A Qt 3D QML application that implements a single-pass wireframe rendering method.
Qt Assistant Manual▲
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Remote Control Example: Using and controlling Qt Assistant as a help viewer.
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Simple Text Viewer Example: Using Qt Assistant as a customized help viewer for your application.
Qt Bluetooth▲
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Bluetooth Chat: Shows communication through Bluetooth using RFCOMM protocol.
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Bluetooth Low Energy Heart Rate Game: A game demonstrating the interaction with a Bluetooth Low Energy Heart Rate device/service.
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Bluetooth Low Energy Heart Rate Server: 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.
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Bluetooth Low Energy Scanner: 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.
Qt Charts▲
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Audio Samples vs Sound Level: This example shows the drawing of microphone samples vs audio level.
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Charts with QML Gallery: Demonstrates how to use the different chart types by using qml.
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Charts with Widgets Gallery: An application that demonstrates the Qt Charts Widgets API.
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OpenGL Accelerated Series Example: The example shows how to enable OpenGL acceleration for QLineSeries and QScatterSeries.
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Qml Oscilloscope: The example shows how to implement application with strict performance requirements using the Qt Charts QML API.
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Qml Weather: This is a basic demonstration showing how to use the different chart types by using qml.
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Zoom Line Example: The example shows how to create your own custom zooming effect.
Qt CoAP▲
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Quick CoAP Multicast Discovery: Using the CoAP client for a multicast resource discovery with a Qt Quick user interface.
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Quick Secure CoAP Client: Securing the CoAP client and using it with a Qt Quick user interface.
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Simple CoAP Client: Creating an application that communicates with a CoAP server.
Qt Concurrent▲
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Image Scaling: Demonstrates how to asynchronously download and scale images.
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Prime Counter: Demonstrates how to monitor the progress of concurrent operations.
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Word Count: Demonstrates how to use the map-reduce algorithm.
Qt Core▲
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Bindable Properties Example: Demonstrates how the usage of bindable properties can simplify your C++ code.
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Contiguous Cache Example: The 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.
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Convert Example: The Convert example demonstrates how to convert between different serialization formats.
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Custom Type Example: The Custom Type example shows how to integrate a custom type into Qt's meta-object system.
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JSON Save Game Example: The JSON Save Game example demonstrates how to save and load a small game using QJsonDocument, QJsonObject and QJsonArray.
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Local Fortune Client Example: Demonstrates using QLocalSocket for a simple local service client.
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Local Fortune Server Example: Demonstrates using QLocalServer and QLocalSocket for serving a simple local service.
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MIME Type Browser Example: Shows the hierarchy of MIME types and can be used to determine the MIME type of a file.
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Mandelbrot: The 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.
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Parsing and displaying CBOR data: A demonstration of how to parse files in CBOR format.
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QXmlStream Bookmarks Example: Demonstrates how to read and write XBEL files.
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Qt Android Notifier: Demonstrates calling Java code from Qt in an Android application.
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Queued Custom Type Example: Demonstrates multi-thread programming using Qt.
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Semaphores Example: Demonstrates multi-thread programming using Qt.
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Shared Memory Example: Demonstrates doing inter-process communication using shared memory with the QSharedMemory class.
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Wait Conditions Example: Demonstrates multi-thread programming using Qt.
Qt D-Bus▲
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D-Bus Chat: Demonstrates communication among instances of an application.
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D-Bus Complex Ping Pong: Demonstrates usage of the Qt D-Bus typesystem.
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D-Bus Ping Pong: Demonstrates a simple message system using D-Bus.
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D-Bus Remote Controlled Car: Shows how to use Qt D-Bus to control a car from another application.
Qt Data Visualization▲
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Axis Handling: Implementing axis dragging with a custom input handler in QML, and creating a custom axis formatter.
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Graph Gallery: Gallery of Bar, Scatter, and Surface graphs.
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Simple Bar Graph: Using Bars3D in a QML application.
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Simple Scatter Graph: Using Scatter3D in a QML application.
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Surface Graph Gallery: Gallery with three different ways to use a Surface3D graph.
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Volumetric Rendering: Rendering volumetric objects.
Qt Designer Manual▲
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Calculator Builder: Creating a user interface from a Qt Designer form at run-time.
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Calculator Form: Using a form created with Qt Designer in an application.
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Calculator Form/Multiple Inheritance: Using a form created with Qt Designer in an application.
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Container Extension Example: Creating a custom multi-page plugin for Qt Designer.
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Custom Widget Plugin: Creating a custom widget plugin for Qt Designer.
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Task Menu Extension: Creating a custom widget plugin for Qt Designer and providing custom task menu entries that are associated with the plugin.
Qt GRPC▲
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Chat: Using the Qt GRPC client API in the user applications.
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Magic 8 Ball: Creating a HTTP2 connection between a Qt GRPC client and a C++ gRPC server.
Qt GUI▲
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Hello Vulkan Cubes Example: Shows the basics of using QVulkanWindow.
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Hello Vulkan Triangle Example: Shows the basics of rendering with QVulkanWindow and the Vulkan API.
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Hello Vulkan Widget Example: Shows the usage of QVulkanWindow in QWidget applications.
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Raster Window Example: This example shows how to create a minimal QWindow based application using QPainter for rendering.
Qt HTTP Server▲
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RESTful Color Palette Server: Example of how to create a RESTful API server using the QHttpServer.
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Simple HTTP Server: Simple example of how to set up an HTTP server.
Qt Help▲
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Context-Sensitive Help Example: Using the QHelpEngineCore class to implement context-sensitive help for applications.
Qt Insight Tracker▲
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Qt Insight - Qt Quick Application: A Qt Quick application using Qt Insight Tracker.
Qt Linguist Manual▲
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Arrow Pad Example: Understanding the Qt Linguist contexts concept and using two or more languages.
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Hello tr() Example: Translating a small Hello World program to Latin.
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I18N Example: Demonstrates Qt's support for translated text.
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Troll Print Example: Updating translations for later releases.
Qt Location▲
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GeoJson Viewer (C++/QML): The GeoJson viewer example demonstrates how to manipulate MapItems, handle user input and I/O to and from a GeoJson file.
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Map Viewer (QML): The Map Viewer example shows how to display and interact with a map, search for an address, and find driving directions.
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MapItemView Transitions (QML): How to use transitions together with MapItemView.
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Minimal Map (QML): The minimum code to display a map using Qt Quick.
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Places (QML): The Places example demonstrates how to search for Places and access related content.
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Places List (QML): The Places List example demonstrates how to search for and display a list of places using a ListView.
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Places Map (QML): The Places Map example demonstrates how to search for and display a list of places on a map using a MapItemView.
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Plane Spotter (QML): The Plane Spotter example demonstrates the tight integration of location and positioning data types into QML.
Qt MQTT▲
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MQTT Subscriptions Example: Creating a application that communicates with an MQTT broker.
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Quick MQTT Example: Registering QMqttClient to QML and using it in a Qt Quick user interface.
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Simple MQTT Client Example: Creating a minimalistic telemetry application.
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WebSockets MQTT Subscription Example: Combining an MQTT client with a web socket connection.
Qt Multimedia▲
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Audio Devices Example: Testing the available audio devices and their configuration.
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Audio Output Example: Enabling audio playback using the QAudioSink class.
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Audio Recorder Example: Discovering the available devices and supported codecs.
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Audio Source Example: Recording audio using the QAudioSource class.
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Camera Example: Shows how to capture a still image or record video. or video.
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Media Player Example: Playing audio and video.
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QML Camera Application: This Qt Quick based application shows how to use the API to capture a still image or video.
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QML Media Player Example: Playing audio and video using Qt Quick.
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QML Video Example: Transforming video and camera viewfinder content.
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QML Video Recorder: Recording audio and video using Qt Quick.
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Screen Capture Example: Capturing a screen or window.
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Spectrum Example: Analyzing a raw audio stream using the FFTReal library.
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Video Graphics Item Example: Streaming video on a graphics scene.
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Video Widget Example: Implementing a video player widget.
Qt NFC▲
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Annotated URL: The example shows reading from formatted NFC Data Exchange Format (NDEF) messages.
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NDEF Editor Example: An example of reading and writing NFC Data Exchange Format (NDEF) messages to NFC Forum Tags.
Qt Network▲
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A minimal RSS listing application: A demonstration of how to fetch and display a network resource.
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Blocking Fortune Client: Demonstrates how to create a client for a network service.
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Broadcast Receiver Example: Demonstrates how to receive information broadcasted over a local network.
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Broadcast Sender Example: Demonstrates how to broadcast information to multiple clients on a local network.
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DTLS client: This example demonstrates how to implement client-side DTLS connections.
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DTLS server: This examples demonstrates how to implement a simple DTLS server.
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Fortune Client: Demonstrates how to create a client for a network service.
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Fortune Server: Demonstrates how to create a server for a network service.
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HTTP Client: Demonstrates a simple HTTP client.
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Multicast Receiver: Demonstrates how to receive information sent to a multicast group.
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Multicast Sender: Demonstrates how to send messages to a multicast group.
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Network Chat Example: Demonstrates a stateful peer-to-peer Chat client.
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Secure Socket Client Example: Demonstrates how to communicate over an encrypted (SSL) connection.
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Threaded Fortune Server: The 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.
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Torrent Example: Demonstrates complex TCP/IP operations.
Qt Network Authorization▲
Qt OPC UA▲
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Qt OPC UA Viewer Example: Using the model/view approach to display all nodes of an OPC UA server in a tree view.
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Qt OPC UA X509 Support Example: Shows how to generate keys and certificate signing requests.
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Qt Quick Waterpump Example: Interacting with an OPC UA server to build a QML-based HMI for a simple machine.
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Waterpump Example: Interacting with an OPC UA server to build a QML-based HMI for a simple machine.
Qt OpenGL▲
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2D Painting Example: The 2D Painting example shows how QPainter and QOpenGLWidget can be used together to display accelerated 2D graphics on supported hardware.
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Cube OpenGL ES 2.0 example: Shows how to manually rotate a textured 3D cube with user input.
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Hello GL2 Example: The Hello GL2 example demonstrates the basic use of the OpenGL-related classes provided with Qt.
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Hello GLES3 Example: Demonstrates OpenGL ES 3.0 functions via QOpenGLExtraFunctions.
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OpenGL Window Example: This example shows how to create a minimal QWindow based application for the purpose of using OpenGL.
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QOpenGLWidget Stereoscopic Rendering Example: This example shows how to create a minimal QOpenGLWidget based application with stereoscopic rendering support.
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Textures Example: The Textures example demonstrates the use of Qt's image classes as textures in applications that use both OpenGL and Qt to display graphics.
Qt PDF▲
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PDF Multipage Viewer Example: A Qt Quick PDF viewer that allows scrolling through the pages.
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PDF Viewer Widget Example: A widget-based PDF viewer that allows scrolling through the pages.
Qt Positioning▲
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Log File Position Source (C++): Logfile Position Source shows how to create and work with a custom position source. It can be useful for simulating GPS data, or when the data is received in some custom format.
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SatelliteInfo (QML): The SatelliteInfo example shows the available satellites using Sky View or RSSI View and the user's current position. The satellites currently contributing to the GPS fix are marked as pink.
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Weather Info (C++/QML): The 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 Protobuf▲
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Sensors: The Sensors example shows how two applications can communicate by sending protobuf messages using UDP sockets.
Qt QML▲
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QML Example - Dynamic Scene: This example demonstrates creating components dynamically.
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Qt Quick I18N: Generating translation files (TS and QM) for a Qt Quick application.
Qt Quick▲
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C++ Extensions: Image Provider Example: How to load images in QML with QQuickImageProvider.
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C++ Extensions: Image Response Provider Example: How to load images asynchronously in QML.
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Models and Views: AbstractItemModel Example: Shows how to use a QAbstractItemModel subclass as a model in QML.
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Models and Views: Object ListModel Example: Shows how to use a QList<QObject*> as a model in QML.
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Models and Views: String ListModel Example: Shows how to use a QStringList as a model in QML.
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Pointer Handlers Example: Shows how to use Qt Quick Input Handlers in interactive components.
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QML Advanced Tutorial 1 - Creating the Game Canvas and Blocks:
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QML Dynamic View Ordering Tutorial 1 - A Simple ListView and Delegate:
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QML Dynamic View Ordering Tutorial 3 - Moving Dragged Items:
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QQuickRenderControl D3D11 Example: Shows how to render a Qt Quick scene into a texture that is then used by a non-Quick based Direct3D 11 renderer.
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QQuickRenderControl OpenGL Example: Shows how to render a Qt Quick scene into a texture that is then used by a non-Quick based OpenGL renderer.
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QQuickWidget - QQuickView Comparison Example: Demonstrates the benefits of QQuickWidget over a QQuickView embedded as a native window.
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Qt Quick Examples - Accessibility: This example demonstrates the implementation of accessible buttons.
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Qt Quick Examples - Animation: This is a collection of QML Animation examples.
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Qt Quick Examples - Canvas: This is a collection of QML Canvas examples.
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Qt Quick Examples - Drag and Drop: This is a collection of QML drag and drop examples.
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Qt Quick Examples - Embedded in Widgets: Demonstrates embedding a QQuickWindow into a QWidget UI via QWidget::createWindowContainer().
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Qt Quick Examples - Image Elements: This is a collection of QML examples relating to image types.
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Qt Quick Examples - Item Variable Refresh Rate: A Qt Quick example shows how to setup variable refresh rate for specific parts of the UI.
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Qt Quick Examples - Key Interaction: This is a collection of QML keyboard interaction examples.
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Qt Quick Examples - Local Storage: A collection of QML local storage examples.
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Qt Quick Examples - MouseArea: This is an example of the MouseArea type in QML.
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Qt Quick Examples - MultiEffect Item Switcher: Demonstrates MultiEffect usage.
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Qt Quick Examples - MultiEffect Test Bed: Demonstrates MultiEffect usage.
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Qt Quick Examples - Positioners: This is a collection of QML Positioner examples.
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Qt Quick Examples - Shader Effects: A Qt Quick example demonstrating the use of shader effects.
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Qt Quick Examples - Shapes: A Qt Quick example demonstrating the use of shape items.
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Qt Quick Examples - Text: This is a collection of QML examples relating to text.
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Qt Quick Examples - Threading: This is a collection of QML multithreading examples.
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Qt Quick Examples - Touch Interaction: A collection of QML Touch Interaction examples.
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Qt Quick Examples - Views: This is a collection of QML model-view examples.
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Qt Quick Examples - Window and Screen: This example demonstrates the Window and Screen types in QML.
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Qt Quick Examples - externaldraganddrop: This is an example of drag-and-drop among QML applications.
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Qt Quick Layouts - Basic Example: Demonstrates how to use layout types to arrange a UI.
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Qt Quick Particles Examples - Affectors: This is a collection of examples using Affectors in the QML particle system.
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Qt Quick Particles Examples - Emitters: This is a collection of examples using Emitters in the QML particle system.
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Qt Quick Particles Examples - Image Particles: This is a collection of examples using Affectors in the QML particle system.
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Qt Quick Particles Examples - System: This is a collection of examples using Affectors in the QML particle system.
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Qt Quick TableView examples - Conway’s Game of Life: The 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.
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Qt Quick TableViews examples - Pixelator: The Pixelator example shows how a QML TableView and a delegate can be used for custom table models.
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Qt Quick Widgets Example: Demonstrates how to mix QML with a Qt Widgets application using the QQuickWidget class.
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Scene Graph - Custom Geometry: Shows how to implement a custom geometry in the Qt Quick Scene Graph.
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Scene Graph - Custom Material: Shows how to implement a custom material in the Qt Quick Scene Graph.
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Scene Graph - Custom QSGRenderNode: Shows how to use QSGRenderNode to implement custom rendering in the Qt Quick scenegraph.
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Scene Graph - Direct3D 11 Under QML: Shows how to render directly with Direct3D 11 under a Qt Quick scene.
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Scene Graph - Graph: Demonstrates how one can combine custom materials and geometries under a single QQuickItem.
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Scene Graph - Metal Texture Import: Shows how to use a texture created directly with Metal.
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Scene Graph - Metal Under QML: Shows how to render directly with Metal under a Qt Quick scene.
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Scene Graph - OpenGL Under QML: Shows how to render OpenGL under a Qt Quick scene.
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Scene Graph - Painted Item: Shows how to implement QPainter-based custom scenegraph items.
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Scene Graph - Rendering FBOs: Shows how to use FramebufferObjects with Qt Quick.
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Scene Graph - Two Texture Providers: Shows how to combine two textures from two texture providers in a custom scene graph node.
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Scene Graph - Vulkan Texture Import: Shows how to use a texture created directly with Vulkan.
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Scene Graph - Vulkan Under QML: Shows how to render directly with Vulkan under a Qt Quick scene.
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Threaded ListModel Example: The Threaded ListModel example shows how to use a ListModel from multiple threads using WorkerScript.
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UI Components: Dial Control Example: The Dial Control Example shows how to create a speedometer-type dial.
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UI Components: Flipable Example: The Flipable Example shows an item that flips whenever clicked, rotating around the y-axis.
Qt Quick 3D▲
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Hello Qt Quick 3D Example: Demonstrates simple instanced drawing.
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Qt Quick 3D - Antialiasing Example: Demonstrates the antialiasing modes in Qt Quick 3D.
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Qt Quick 3D - Baked Lightmap Example: Demonstrates the use of baked lightmaps in a 3D scene.
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Qt Quick 3D - Custom Effect Example: Demonstrates writing custom post-processing effects.
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Qt Quick 3D - Custom Geometry Example: Demonstrates providing custom vertex data from C++.
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Qt Quick 3D - Custom Instanced Rendering: Demonstrates instancing with custom materials and a C++ instance table.
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Qt Quick 3D - Custom Materials Example: Demonstrates writing shaded custom materials.
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Qt Quick 3D - Custom Morphing Animation: Demonstrates writing C++ custom geometry with a morph target.
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Qt Quick 3D - Custom Shaders Example: Demonstrates the use of custom vertex and fragment shaders.
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Qt Quick 3D - Dynamic Model Creation Example: Demonstrates dynamic model creation.
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Qt Quick 3D - Dynamic Texture Example: Demonstrates how to use a 2D layer as a 3D texture.
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Qt Quick 3D - HelloCube Example: Demonstrates how to render 2D and 3D objects together in Qt Quick 3D.
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Qt Quick 3D - Instanced Rendering Example: Demonstrates how to do instanced rendering in Qt Quick 3D.
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Qt Quick 3D - Introduction: Demonstrates how to render a scene in Qt Quick 3D.
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Qt Quick 3D - Level of Detail Helper Example: Demonstrates the use of level of detail helper.
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Qt Quick 3D - Lights Example: Demonstrates the use of different light types.
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Qt Quick 3D - Morphing Example: Demonstrates how to control morphing animations in Qt Quick 3D.
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Qt Quick 3D - Particles 3D Testbed Example: Demonstrates how to use the Qt Quick 3D Particles3D module.
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Qt Quick 3D - Picking example: Demonstrates picking of models.
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Qt Quick 3D - Principled Material Example: Demonstrates the use of Principled Material.
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Qt Quick 3D - Procedural Texture Example: Demonstrates how to provide custom texture data from C++.
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Qt Quick 3D - Quick Ball Example: Demonstrates how to create a simple game using Quick3D.
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Qt Quick 3D - Quick Items Example: Demonstrates the use of Qt Quick Items in Quick 3D scene.
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Qt Quick 3D - Reflection Probes Example: Demonstrates the use of reflection probes in Qt Quick 3D.
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Qt Quick 3D - RuntimeLoader Example: Demonstrates how assets can be loaded at runtime.
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Qt Quick 3D - Scene Effects Example: Demonstrates the use of ExtendedSceneEnvironment.
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Qt Quick 3D - Screen Space Reflections Example: Demonstrates reflections in Qt Quick 3D.
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Qt Quick 3D - Simple Fog Example: Demonstrates how to enable fog in the 3D scene.
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Qt Quick 3D - Simple Skinning Example: Demonstrates how to render a simple skinning animation in Qt Quick 3D.
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Qt Quick 3D - Sub-mesh Example: Demonstrates how assign materials to sub-meshes.
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Qt Quick 3D - View3D Example: Demonstrates the use of View3D to show a scene from multiple cameras.
Qt Quick 3D Physics▲
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Qt Quick 3D Physics - Cannon Example: Demonstrates how to spawn physical objects.
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Qt Quick 3D Physics - CharacterController Example: Demonstrates the CharacterController type.
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Qt Quick 3D Physics - Compound Shapes Example: Demonstrates using complex collision shapes.
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Qt Quick 3D Physics - Custom Shapes Example: Demonstrates using different shapes.
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Qt Quick 3D Physics - Impeller Example: Demonstrates using trigger bodies and collision info.
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Qt Quick 3D Physics - Mass Example: Demonstrates different ways of setting mass and inertia of a body.
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Qt Quick 3D Physics - Material Example: Demonstrates using physical materials.
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Qt Quick 3D Physics - Simple Example: Demonstrates setting up a simple physics scene.
Qt Quick Controls▲
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Qt Quick Controls - Attached Style Properties Example: Demonstrates use of QQuickAttachedPropertyPropagator.
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Qt Quick Controls - Contact List: A QML app using Qt Quick Controls and a C++ class that implements a simple contact list.
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Qt Quick Controls - Event Calendar: A simple event calendar.
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Qt Quick Controls - Flat Style: A QML app using Qt Quick Controls and a QML plugin with customized controls.
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Qt Quick Controls - Gallery: A gallery of controls.
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Qt Quick Controls - Imagine Style Example: Automotive: An automotive user interface using custom Imagine style assets.
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Qt Quick Controls - Side Panel: A persistent side panel with Drawer.
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Qt Quick Controls - Swipe to Remove: Demonstrates removal of list items by swipe gesture.
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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.
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Qt Quick Controls - To Do List: To do list application for iOS.
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Qt Quick Controls - Wearable Demo: Demonstrates an application launcher designed for wearable devices.
Qt Quick Effect Maker▲
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Wiggly: Demonstrates how to use an effect created with the Qt Quick Effect Maker (QQEM).
Qt Remote Objects▲
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Model-View Client: Developing a very simple client program which displays the content and changes made on a server.
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Model-View Server: Developing a simple server program that displays and makes changes to a QTreeView which is made available on a Remote Objects network.
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QtRemoteObjects Bluetooth LE Example: Using QtBluetooth Low Energy (BT LE or BLE for short) as a transport medium with Qt Remote Objects.
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QtRemoteObjects WebSockets Applications: Using a non-QIODevice-based transport (QWebSocket) with QtRemoteObjects.
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SSL Server and Client: Setting up a secure Remote Object network using QSslSockets.
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Time Client Application: A client who holds a replica of a time object from a server and displays the time in a clock.
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Time Server Application: A server which shares a time object with connected clients.
Qt SCXML▲
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SCXML Calculator: An application that implements the Calculator example presented in the SCXML Specification.
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SCXML FTP Client: Implements a simple FTP client using a state machine.
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SCXML Invoke: Invokes a compiled nested state machine.
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SCXML Media Player: Sends data to and receives it from a C++ data model.
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SCXML Sudoku: Demonstrates the use of separate javascript file with SCXML.
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SCXML Traffic Light (Dynamic, QML): A Qt Quick application that uses a dynamically loaded state machine to implement a traffic light.
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SCXML Traffic Light (Dynamic, Widgets): A widget-based application that uses a dynamically loaded state machine to implement a traffic light.
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SCXML Traffic Light (Simple, QML): A Qt Quick application that uses a compiled state machine to implement a simplified traffic light.
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SCXML Traffic Light (Static, QML): A Qt Quick application that uses a compiled state machine to implement a traffic light.
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SCXML Traffic Light (Static, Widgets): A widget-based application that uses a compiled state machine to implement a traffic light.
Qt SQL▲
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Books: Shows how to use Qt SQL classes with a model/view framework.
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Cached SQL Table: The 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.
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Drill Down Example: The Drill Down example shows how to read data from a database as well as submit changes, using the QSqlRelationalTableModel and QDataWidgetMapper classes.
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Master Detail Example: The 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.
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Query Model Example: The 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.
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Relational Table Model Example: The Relational Table Model example shows how to use table views with a relational model to visualize the relations between items in a database.
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SQL Browser: The SQL Browser example shows how a data browser can be used to visualize the results of SQL statements on a live database.
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SQL Widget Mapper Example: The SQL Widget Mapper example shows how to use a map information from a database to widgets on a form.
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Table Model Example: The Table Model example shows how to use a specialized SQL table model with table views to edit information in a database.
Qt SVG▲
Qt Sensors▲
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Sensors Showcase: The Sensors Showcase example demonstrates sensor usage with visual examples.
Qt Serial Bus▲
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CAN Bus Manager: The example sends and receives CAN bus frames.
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Modbus Client: The example implements a Modbus client application.
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Modbus Custom Command: The example shows how to handle custom Modbus function codes.
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Modbus Server: The example implements a Modbus server application.
Qt Serial Port▲
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Blocking Receiver: Shows how to use the synchronous API of QSerialPort in a non-GUI thread.
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Blocking Sender: Shows how to use the synchronous API of QSerialPort in a worker thread.
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Serial Terminal: Shows how to use various features of QSerialPort.
Qt Spatial Audio▲
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Spatial Audio Panning Example: Shows some of the capabilities of the spatial audio engine in Qt.
Qt State Machine▲
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Move Blocks: The Move Blocks example shows how to animate items in a QGraphicsScene using a QStateMachine with a custom transition.
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Ping Pong States: The Ping Pong States example shows how to use parallel states together with custom events and transitions in Qt State Machine Framework.
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Rogue: The Rogue example shows how to use the Qt state machine for event handling.
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Traffic Light: The Traffic Light example shows how to use Qt State Machine Overview to implement the control flow of a traffic light.
Qt TextToSpeech▲
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Hello Speak Example: The Hello Speak example reads out user-provided text.
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Quick Speech Example: The Quick Speech example reads out user-provided text.
Qt UI Tools▲
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Text Finder: Dynamically loading .ui files using QUiLoader.
Qt Virtual Keyboard▲
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Virtual Keyboard in Qt Quick: This example shows how to use the virtual keyboard in a Qt Quick application.
Qt Wayland Compositor▲
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Custom Shell: Custom Shell shows how to implement a custom shell extension.
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IVI Compositor: IVI Compositor is an example that demonstrates how to use the IviApplication extension.
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Minimal CPP: Minimal CPP is an example that demonstrates how to write a Wayland compositor in C++.
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Minimal QML: Minimal QML is a simple example that demonstrates how to write a Wayland compositor in QML.
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Multi Output: Multi Output is an example that demonstrates a compositor with multiple outputs.
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Multi Screen: Multi Screen is a desktop-style Wayland compositor for multiple screens.
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Overview Compositor: Overview Compositor shows how to switch between clients in a grid.
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Pure QML: Pure QML is an example that demonstrates how to write a Wayland compositor in pure QML.
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QtShell Compositor: QtShell Compositor shows how to use the QtShell shell extension.
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Server Side Decoration Compositor: Server Side Decoration Compositor is a simple example that demonstrates server side window decorations on xdg-shell.
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Spanning Screens: Spanning Screens is an example that demonstrates how to let Wayland clients span multiple screens.
Qt WebChannel▲
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Qt WebChannel ChatClient HTML Example: A HTML/JavaScript client that communicates over a WebSocket with a QWebChannel server.
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Qt WebChannel ChatClient QML Application: A QML client that communicates over a WebSocket with a QWebChannel server.
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Qt WebChannel ChatServer Example: A simple chat server implemented using the QWebChannel C++ API.
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Qt WebChannel Standalone Example: A simple chat between a server and a remote client running in a browser.
Qt WebEngine▲
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Recipe Browser: Injecting custom stylsheets into web pages and providing a rich text preview tool for a custom markup language.
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WebEngine Content Manipulation Example: Demonstrates how to load and manipulate web content.
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WebEngine Cookie Browser Example: A cookie browser based on Qt WebEngine Widgets.
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WebEngine Lifecycle Example: Freezes and discards background tabs to reduce CPU and memory usage.
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WebEngine Notifications Example: Demonstrates how to pass HTML5 web notifications to users.
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WebEngine Push Notifications Example: Demonstrates how to subscribe to and unsubscribe from push notifications.
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WebEngine Quick Nano Browser: A web browser implemented using the WebEngineView QML type.
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WebEngine Widgets Client Certificate Example: A simple client certificate authentication scenario using Qt WebEngine and QSslServer.
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WebEngine Widgets Html2Pdf Example: Converts web pages to PDF documents using Qt WebEngine.
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WebEngine Widgets Maps Example: Demonstrates how to handle geolocation requests.
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WebEngine Widgets PrintMe Example: Demonstrates how to print web pages using Qt WebEngine Widgets.
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WebEngine Widgets Simple Browser Example: A simple browser based on Qt WebEngine Widgets.
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WebEngine Widgets Spellchecker Example: Integrates a spellchecker into a simple HTML form.
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WebEngine Widgets Video Player Example: Displays full screen video using QWebEngineView.
Qt WebSockets▲
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QML WebSocket Client: Explains how to write a QML WebSocket client example.
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QML WebSocket Server: A simple example that shows how to use a QML WebSocketServer.
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Secure WebSocket Echo Client: A simple client application using secure WebSockets (wss).
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Secure WebSocket Echo Server: A simple server to respond to clients over secure WebSockets (wss).
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Simple WebSocket Chat: A minimal chat application using the WebSocket protocol.
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WebSocket Echo Client: Show how to write a simple WebSocket client application.
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WebSocket Echo Server: Show how to write a simple WebSocket server application.
Qt WebView▲
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Qt WebView Examples - Minibrowser: Minibrowser example demonstrates how to use the Qt WebView module with Qt Quick.
Qt Widgets▲
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40000 Chips: Visualizes a huge graphic view scene with 40000 chip items.
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Address Book: The address book example shows how to use proxy models to display different views onto data from a single model.
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Affine Transformations: Demonstrates how affine transformations in QPainter work.
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Analog Clock: The Analog Clock example shows how to draw the contents of a custom widget.
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Basic Drawing Example: The Basic Drawing example shows how to display basic graphics primitives in a variety of styles using the QPainter class.
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Basic Graphics Layouts Example: Demonstrates how to create basic graphics layout.
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Basic Layouts Example: Shows how to use the standard layout managers.
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Basic Sort/Filter Model Example: The Basic Sort/Filter Model example illustrates how to use QSortFilterProxyModel to perform basic sorting and filtering.
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Blur Picker Effect Example: Demonstrates how to apply graphical effects on items in the view.
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Calculator Example: The 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.
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Calendar Widget Example: The Calendar Widget example shows use of QCalendarWidget.
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Colliding Mice Example: Demonstrates how to animate items on a graphics view.
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Color Editor Factory Example: This example shows how to create an editor that can be used by a QItemDelegate.
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Combo Widget Mapper Example: The Combo Widget Mapper example shows how to use a custom delegate to map information from a model to specific widgets on a form.
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Completer Example: The Completer example shows how to provide string-completion facilities for an input widget based on data provided by a model.
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Composition Modes: Demonstrates how Composition Modes work in QPainter.
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Concentric Circles Example: Demonstrates the improved quality that antialiasing and floating point precision gives.
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Custom Completer Example: The 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.
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Custom Sort/Filter Model Example: The Custom Sort/Filter Model example illustrates how to subclass QSortFilterProxyModel to perform advanced sorting and filtering.
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Diagram Scene Example: Demonstrate how to use the Graphics View framework.
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Drag and Drop Robot Example: Demonstrates how to drag and drop items in a graphics view.
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Draggable Icons Example: The Draggable Icons example shows how to drag and drop image data between widgets in the same application, and between different applications.
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Draggable Text Example: Illustrates how to drag and drop text between widgets.
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Drop Site Example: The example shows how to distinguish the various MIME formats available in a drag and drop operation.
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Easing Curves Example: The Easing Curves example shows how to use easing curves to control the speed of an animation.
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Echo Plugin Example: This example shows how to create a Qt plugin.
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Editable Tree Model Example: This example shows how to implement a simple item-based tree model that can be used with other classes in the model/view framework.
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Elastic Nodes Example: Demonstrates how to interact with graphical items in a scene.
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Fetch More Example: The Fetch More example shows how to add items to an item view model on demand.
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Flow Layout Example: Shows how to arrange widgets for different window sizes.
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Frozen Column Example: This example demonstrates how to freeze a column within a QTableView.
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Getting Started Programming with Qt Widgets: A tutorial for Qt Widgets based notepad application.
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Gradients: Shows how gradients can be used with QPainter.
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Group Box Example: The Group Box example shows how to use the different kinds of group boxes in Qt.
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Image Composition Example: Shows how composition modes work in QPainter.
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Image Gestures Example: Demonstrates the use of simple gestures in a widget.
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License Wizard Example: The License Wizard example shows how to implement complex wizards in Qt.
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Line Edits Example: The 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.
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Menus Example: The Menus example demonstrates how menus can be used in a main window application.
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Order Form Example: The Order Form example shows how to generate rich text documents by combining a simple template with data input by the user in a dialog.
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Painter Paths Example: The Painter Paths example shows how painter paths can be used to beuild complex shapes for rendering.
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Path Stroking: The Path Stroking example shows various types of pens that can be used with QPainter.
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QRegularExpression Example: The 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.
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Scribble Example: The Scribble example shows how to reimplement some of QWidget's event handlers to receive the events generated for the application's widgets.
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Settings Editor Example: The 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.
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Shortcut Editor Example: The Shortcut Editor example shows how to create a basic, read-write hierarchical model to use with Qt's standard view and QKeySequenceEdit classes. For a description of Model/View Programming, see the Model/View Programming overview.
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Simple Anchor Layout Example: Demonstrates anchor layout on a graphics view scene.
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Simple Tree Model Example: The Simple Tree Model example shows how to use a hierarchical model with Qt's standard view classes.
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Sliders Example: The Sliders example shows how to use the different types of sliders available in Qt: QSlider, QScrollBar and QDial.
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Spin Box Delegate Example: The 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.
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Spin Boxes Example: The 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.
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Spreadsheet: The Spreadsheet example shows how to create a simple spreadsheet application.
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Standard Dialogs Example: The Standard Dialogs example shows the standard dialogs that are provided by Qt.
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Star Delegate Example: The Star Delegate example shows how to create a delegate that can paint itself and that supports editing.
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Style Plugin Example: This example shows how to create a plugin that extends Qt with a new GUI look and feel.
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Syntax Highlighter Example: The Syntax Highlighter example shows how to perform simple syntax highlighting.
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System Tray Icon Example: The System Tray Icon example shows how to add an icon with a menu and popup messages to a desktop environment's system tray.
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Tab Dialog Example: The Tab Dialog example shows how to construct a tab dialog using the QTabWidget class.
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Tablet Example: This example shows how to use a Wacom tablet in Qt applications.
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Taking a Screenshot: The Screenshot example shows how to take a screenshot of the desktop.
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Tool Tips Example: The Tool Tips example shows how to provide static and dynamic tool tips for an application's widgets.
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Touch Knobs Example: Shows how to create custom controls that accept touch input.
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Transformations Example: The Transformations example shows how transformations influence the way that QPainter renders graphics primitives.
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Translucent Background: The example shows how to make a round window with a translucent background.
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Tree Model Completer Example: The 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.
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Trivial Wizard Example: The Trivial Wizard example illustrates how to create a linear three-page registration wizard using three instances of QWizardPage and one instance of QWizard.
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Undo Framework Example: This example shows how to implement undo/redo functionality with the Qt undo framework.
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Vector Deformation: Demonstrates how to manipulate the elements of a QPainterPath.
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Widgets Gallery Example: The Widgets Gallery example shows widgets relevant for designing UIs.
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Window Flags Example: The Window Flags example shows how to use the window flags available in Qt.
Qt XML▲
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DOM Bookmarks Application: Provides a reader for XML Bookmark Exchange Language files.
Additional Information▲
The following table lists related documents, such as information about Trademarks and other licenses used in parts of Qt.
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Android GNU C++ Run-time Licensing: Provides additional information about the licensing of run-time dependencies of Qt for Android
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LLVM Attribution: University of Illinois/NCSA Open Source License, BSD licenses
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License Changes: Information about changes of licenses in Qt and Third Party Modules
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Macros for Building with CMake: BSD 3-clause "New" or "Revised" License
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Mesa llvmpipe: MIT License and Boost Software License 1.0
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Notes about PDF Licensing: Details of restrictions on the use of PDF-related trademarks.
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The QtEntryPoint Library: Commercial and BSD 3-clause "New" or "Revised" License.
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Trademarks: Information about trademarks owned by The Qt Company.