It covers the building blocks of QML like QObject and QQuickItem which inherit from. Qt uses object-oriented memory management where objects are deleted automatically when their parent object is deleted. The keyword 'virtual' enables the object orientated concept of dynamic binding. Signals and slots. 2. . This document discusses best practices in Qt Quick/QML. The editTodo() slot is called by Window when a todo item should be edited. # [HOST] # [HOST] """ SLOT que guarda el index del. } public slots: void hideEverythingButA1AndChildren() { hideThem =!hideThem; // Now we set up the proxy source mappings emit. The book needs about two hundred more pages explaining examples and critical subjects like slot-signal interactions, layouts and many of the widgets more. Dynamic. Therefore the virtual slots of Qt classes are helpful. finishEditing() is connected to doneButton, and emits the editingFinished() signal.