Accessing GUI widget from different class

[Mobility]

Is it possible to have several connections active and working simultaneously without using threads?

[amleto]

Off topic, but Op has circular reference => design error.

Main window composed of sslserver, and sslserver impl also needs full knowledge of MainWindow.

edit:
I think that main window code in your sslserver is just you being a bit confused. You want to be updating the existing mainwin nit creating a new one. So there you should emit a signal with the new count as an argument. Connect that signal to a slot on your mainwin, and from there you can update the label text

[Mobility]

Off topic, but Op has circular reference => design error.

Main window composed of sslserver, and sslserver impl also needs full knowledge of MainWindow.

edit:
I think that main window code in your sslserver is just you being a bit confused. You want to be updating the existing mainwin nit creating a new one. So there you should emit a signal with the new count as an argument. Connect that signal to a slot on your mainwin, and from there you can update the label text

Thanks, I see your point. I already tried SIGNAL-SLOT solution, but I guess I had some error on it. I'll give it another try and get back with the result.

I think I should add following to the sslserver.c:

connect(thread, SIGNAL(finished()), main, SLOT(count_update()));

connect(thread, SIGNAL(finished()), main, SLOT(count_update()));

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I'm not sure though what I should put to the third parameter? Certainly main is not correct. I think this was the problem I faced when I tried to use the SIGNALs for this issue.

Cheers!

[amleto]

sslserver should be emitting signal, therefore it should not be the one doing the connection.
mainwindow should connect to sslserver

[Mobility]

Thank guys! I got it working. My problem was that I was not using pointer of object sslserver. With the following connection it worked out:

SslServer *ptr_server = &server;
    connect(ptr_server, SIGNAL(count(int)), this, SLOT(update_count(int)));

SslServer *ptr_server = &server;
    connect(ptr_server, SIGNAL(count(int)), this, SLOT(update_count(int)));

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Cheers!

[amleto]

connect(&server, SIGNAL(count(int)), this, SLOT(update_count(int)));

connect(&server, SIGNAL(count(int)), this, SLOT(update_count(int)));

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that is good enough!

[wysota]

Is it possible to have several connections active and working simultaneously without using threads?

Yes, of course. It's just a matter of using signals and slots correctly.