6.C++ GUI with Qt Tutorial - 6 - Signals and Slots; 7.C++ GUI with Qt Tutorial - 7 - Spinners and Sliders; 8.C++ GUI with Qt Tutorial - 8 - Syncing Widgets and Layouts; 9.C++ GUI with Qt Tutorial - 9 - Creating a Useful Program; 10.C++ GUI with Qt Tutoria

Signals and slots are used for communication between objects. The signals and slots mechanism is a central feature of Qt. In GUI programming, when we change one widget, we often want another widget to be notified. More generally, we want objects of any ki

In Qt, we have an alternative to the callback technique: We use signals and slots. A signal is emitted when a particular event occurs. Qt's widgets have many predefined signals, but we can always subclass widgets to add our own signals to them. A slot