Qt Reference Documentation

- Qt 4.8
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# Tutorial: Writing QML Extensions with C++

The Qt Declarative module provides a set of APIs for extending QML through C++ extensions. You can write extensions to add your own QML types, extend existing Qt types, or call C/C++ functions that are not accessible from ordinary QML code.

This tutorial shows how to write a QML extension using C++ that includes core QML features, including properties, signals and bindings. It also shows how extensions can be deployed through plugins.

You can find the source code for this tutorial in `Qt`'s examples/declarative/tutorials/extending directory.

Tutorial chapters:

1. Creating a New Type
2. Connecting to C++ Methods and Signals
3. Property Binding
4. Using Custom Property Types
5. Using List Property Types
6. Writing an Extension Plugin
7. In Summary