Getting Qt's signalslot mechanism in standard C++

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

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

qt connect signal to slot with parameter 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

qt slot Signals and Slots Across Threads · Auto Connection If the signal is emitted in the thread which the receiving object has affinity then the behavior is