Bind qt quick qml to c++

Question

I want to bind qt qml code to c++ functions and c++ source file. How can I run c++ function directly from qml code for example button onClick event? And how can I call a function from a c++ source file in qml for example onClick event? plz explain more and more! I'm beginner.

Please read [How to create a Minimal, Complete, and Verifiable example](http://stackoverflow.com/help/mcve) — Ilyes, Jan 27 '17 at 08:19
For instance: http://stackoverflow.com/questions/9500280/access-c-function-from-qml — KimKulling, Jan 27 '17 at 08:20

score 2 · Answer 1 · edited May 23 '17 at 12:17

There are several options.

A C++ class that can be instantiated from QML, see Access C++ function from QML as KimKulling pointed out in a comment
A C++ class instantiated in C++ and exposed to the QML engine via QQmlContext::setContextProperty(), see my answer on I have multiple qml Files that get pushed via StackView. How do I connect them to C++ for that technique
A C++ class instantiated once in C++ and used as a "QML Singleton" via qmlRegisterSingleton()

score -1 · Answer 2 · answered Jan 27 '17 at 08:58

-1

You should read the official documentation on signals and slots.

Basically, you are assigning a C++ function to a signal. If the signal is catched, it calls the function.

answered Jan 27 '17 at 08:58

SAlex

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Bind qt quick qml to c++

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