How to call derived class' function from connected slot

maydin

For example in TCP or WebSocket server when there is a connection we connect a signal to a slot like this:

void Server::processMessage(QByteArray message)
{
    QWebSocket *pClient = qobject_cast<QWebSocket *>(sender());
    if(pClient) {
        doSomething();
    }
}

I tried to make doSomething() virtual but it doesnt call the overridden doSomething() function in derived class. Is there anything I can do or I have to connect one more time from derived class?

SGaist

Hi,

Can you show your complete code ?

maydin

It works as expected. I did a mistake in client program so therefore I couldn't see if it is called or not.

It is solved now.

After making 1 hour research about how signal-slot system works and what C++ compiler does, I decided to write here but found my mistake :)