Problem with signals slots and emit

[slqh]

The connection has to be established in main where the actual second instance is! It couldn't work any other way...

Thank you.
That was a simple solution, I thought that connect() could only be called from inside the from constructor.
As the examples I read were consistently doing the connects there.


As for the Basic c++ error.
C++ has proved to be a really complex language to learn, at least for me.
As i get better I hope to have less stuff like that or at least leave them out of the forum questions!

Thank you for your time.

[Lykurg]

Thank you.
That was a simple solution, I thought that connect() could only be called from inside the from constructor.
As the examples I read were consistently doing the connects there.

They are doing it there because they are defining the objects there. You can call connect everywhere you like, but you must have valid pointers to the objects you like to connect. In your case you created a new instance of first/second and used that. But this instances aren't identical with that ones you have created in main function and which you actually use.

[slqh]

They are doing it there because they are defining the objects there. You can call connect everywhere you like, but you must have valid pointers to the objects you like to connect. In your case you created a new instance of first/second and used that. But this instances aren't identical with that ones you have created in main function and which you actually use.

Man not only did you help me with my problem it looks like you can read minds.
i was looking againt at the working code to see exactly what was the root of my problem.
And an after a refresh y see this.

I understand now that i need to pass the same object to the connect than i used to show() the form.
creating a new instance does not work because well is a new instance and not the one i was seeing.

Again. Thank you.

Edit. Also for future reference this is the working way.

MainWindow win;
      win.resize(1024, 768);
      win.show();   
 
      debug deb;
      deb.show();
      QObject::connect(&win, SIGNAL( MySignal() ),&deb, SLOT( MySlot() ));

MainWindow win;
      win.resize(1024, 768);
      win.show();   
      
      debug deb;
      deb.show();
      QObject::connect(&win, SIGNAL( MySignal() ),&deb, SLOT( MySlot() ));

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