Signals and Slots

Signals and Slots signal and slot Signals and slots are used for communication between objects This is an important feature for the script engine because it can make the script very flexible signal and slot The library defines several user-event signals on various widgets, and it is easy and convenient to add signals and slots to widget classes to communicate

signal and slot Slot Arguments Signals can propagate arguments to each of the slots they call For instance, a signal that propagates mouse motion

signal and slot qt Qt's signals and slots mechanism ensures that if you connect a signal to a slot, the slot will be called with the signal's parameters at the right time Signals A signal in Qt is declared much like a member function, except that it has no local implementation