C++ GUI with Qt Tutorial - 6 - Signals and Slots

The central feature in this model is a very powerful mechanism for seamless object communication called signals and slots You can connect a signal to a slot

Receiving signals with signal handlers To receive a notification when a particular signal is emitted for a particular object, the object definition should

qt connect signal to slot slot needs to perform the intended result of the signal This is a powerful way to extend or modify the built-in signals provided by Qt

qt signal slot example The processing function then calls the callback when appropriate In Qt, there is an alternative to the callback technique: signals and slots A signal is