Qt signal is ten times slower than a virtual function

In each QMetaObject, the slots, signals and other invokable methods of that object are given an index, starting from 0 They are ordered so that

Qt signal is ten times slower than a virtual function qt signal slot qt signal slotIn that respect, Queen Cleopatra straddles that multi-millennial divide uneasily, but let's be frank: we're not playing this game

In each QMetaObject, the slots, signals and other invokable methods of that object are given an index, starting from 0 They are ordered so that

signal and slot arguments are not compatible When a connection is configured, it becomes visible in Qt Designer's signal and slot editor where it can be further edited You can also edit signalslot

Qt Signal & Slot implementation is deterministic, but it's using QVariant to box and then unbox values, so there is definitely a performance

signal slot Programmation QtSignaux et slots Langue Pour qu'un bouton puisse être utile, il faut connecter le signal clicked() à un slot ayant la même signature

I have a question about how signalslot are supported by this framework I'm relatively new to Qt signalslot so I might