Integrating QML with C++
QML applications often need to handle more advanced and performance-intensive tasks in C++. The most common and quickest way to do this is to expose the C++ class to the QML runtime, provided the C++ implementation is derived from QObject
.
QML can be easily integrated with C++ code. QML objects can be loaded and manipulated from C++. QML integration with Qt's meta-object system allows C++ functionality to be invoked from QML. This helps in building hybrid applications with a mixture of C++, QML, and JS. To expose C++ data or properties or methods to QML, it should be derived from a QObject
class. This is possible because all QML object types are implemented using QObject
-derived classes, allowing the QML engine to load and inspect objects through the Qt meta-object system.
You can integrate QML with C++ in the following ways:
- Embedding C++ objects into QML with context properties
- Registering the type with the QML engine
- Creating a...