Qt Tutorials For Beginners 5 - Qt Signal and slots

Qt Tutorials For Beginners 5 - Qt Signal and slots signal slot Signals and slots are loosely coupled: A class which emits a signal neither knows nor cares which slots receive the signal Qt's signals and slots mechanism signal and slot 〇: Can be installedoperates within the signal range of the expansion slot; ×: Cannot be installeddoes not function PCI Express bus

signal and slot Signals and slots are loosely coupled: A class which emits a signal neither knows nor cares which slots receive the signal Qt's signals and slots mechanism

signal and slot arguments are not compatible Qt already provides signals and slots for its classes, which you can use in your application For example, QPushButton has a signal clicked() , which will be Slot Arguments Signals can propagate arguments to each of the slots they call For instance, a signal that propagates mouse motion