Understanding Qt's Event Loop and SignalsSlots

Type-safe Signals and Slots in C++: Part 2 signal and slot qt Here we have tried a signal-slot link The aim of these two lines of code is when the button is pressed the text of the label signal and slot It use noSuchMethod so there are problems with arguments type control, sender object must be set for every signal and SignalMapper must be checked before

signal slot qt Or is it that just another name because QT has it in every QObject ? (Sorry, I stopped reading your Link at The Meta Object Compiler where too