Performance comparison of the Qt Signals and Slots mechanism

Qt编译错误：Signal and slot arguments are not compatible 原创 signal and slot arguments are not compatible Signals can propagate arguments to each of the slots they call For instance, a signal that propagates mouse motion events might want to pass along the new signal and slot Since the signatures are compatible, the compiler can help The rule about whether to include arguments or not in the SIGNAL() and SLOT

signal slot qt Note that signal and slot arguments are not checked by the compiler when using this QObject::connect() overload Exercise 3: SingalsSlots