Qt signal is ten times slower than a virtual function

Signals and slots in QT - C++ Forum qt signal slot example 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 qtech slot malaysia For example to terminate ROOT and Qt smoothly do connect(qApp,SIGNAL(lastWindowClosed()),TQtRootSlot::CintSlot(),SLOT(TerminateAndQuit()) To

qt connect signal slot Connect: You can connect a signal to a slot using the QObject::connect method or the more convenient QObject::connect syntax This establishes a