The Signal Engineer

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

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

signal slot qt 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 Signaling speed when a signal connected to a is emitted The script times how long it takes to emit a million signals, does this