Accessing gui from other class

Veve

My main class is "socketserver1" and i try to access it's gui from "MyServer" class. I created a signal on MyServer class: http://pastebin.com/u0aw9c2C . And to my socketserver1(mainwindow) i added a slot to add log: http://pastebin.com/J1XSmdhi . On my socketserver1 i added a connect to connect signal from server to slot from my socketserver1: http://pastebin.com/x8FnFrKh . However, when on second class i do "emit addToLog("ABCDEF"); it doesn't fire the slot and nothing happens.

Veve

anyone? i need to fix this

Paul H.

Are you emitting the signal after you make the connection? If you are testing by emitting the signal in MyServer constructor, the connection will not have been made yet.
Paul

Veve

@Paul-H. i am emitting the signal when the server can list on port, so it will add to the consolelog that listening on that port started. I also will add to add to consolelog when incommingConnection is emitted. But whenever i emit the signal, it just doesn't put anything on the ConsoleLog. The connection is made in main thread, before the server starts. Even if i put to start the serveron push of a button (so i connect it before) it doesn't fire the slot.

Paul H.

Ok, I apparently don't understand everything that is going on in your program.
But if I create a bare bones QObject MyServer class as follows:

#include "myserver.h"

MyServer::MyServer(QObject *parent) : QObject(parent)
{

}

void MyServer::emitTest(const QString toadd)
{
    emit addToLog(toadd);
}

Then add a call to emitTest in the socketserver1 class after the connect:

    MyServer *server = new MyServer(this);
    connect(server,SIGNAL(addToLog(const QString)),this,SLOT(addLog(const QString)));
    server->emitTest("TEST1");

the slot is fired as expected. That is why I thought that the signal was being emitted before it was connected to the slot.
Paul

Edit: You mention using threads, which I am not experienced with. Does it make a difference if you make the MyServer *server a member variable of socketserver1 class instead of declaring it locally in the constructor?