Important: Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct
Signal connected to multiple objects/slots - slots call order
kanito73 last edited by
I have a doubt about the call order of slots... If I connect a single signal to more than one object/slot, the calls to the slot functions will follow the same order as they were connected?
QObject::connect ( this, SIGNAL(valueChanged(int)), object1, SLOT(slot1(int)) );
QObject::connect ( this, SIGNAL(valueChanged(int)), object2, SLOT(slot2(int)) );
QObject::connect ( this, SIGNAL(valueChanged(int)), object3, SLOT(slot3(int)) );
will it call slot1, slot2 and slot3, or they may be called in aleatory order?
Thanks for your comments
Hi, and welcome to the Qt Dev Net!
See the "QObject documentation":http://doc.qt.io/qt-5/qobject.html#connect-4:
[quote]If a signal is connected to several slots, the slots are activated in the same order as the order the connection was made, when the signal is emitted[/quote]
They will follow the same order. You can refer to the documentation.