QJSEngine also offers the capability to use signals and slots. The slot can be either a C++ method or a JavaScript function. The connection can be made either in C++ or in the script.
First, let's see how to establish a connection within a script. When a QObject instance is exposed to a script, the object's signals become the properties of the wrapping object. These properties have a connect method that accepts a function object that is to be called when the signal is emitted. The receiver can be a regular slot or a JavaScript function. The most common case is when you connect the signal to an anonymous function:
pushButton.toggled.connect(function() {
console.log('button toggled!');
});
If you need ...
