Creating exit button for a window

[Shodan]

Hello.

I created two windows. One shown, the other hidden.
A button on window 1 to show window 2.

I'd like to make a "hide" button on window 2 for window 2.

I connected the "hide" button like this:

QObject::connect(closeBtn, SIGNAL(clicked()), qApp, SLOT(quit()));

It quits totally the app, but I want window 1 to stay open.

Isn't there something similar to close a single window?

Then I tried using win2.hide(); within a slot but it says "'win2' was not declared in this scope", even all .h files included.

Can anybody point me in the right direction?

[Shodan]

Found it:

    QObject::connect(exitBtn, SIGNAL(clicked()), this, SLOT(exitSlot()));
}

void window2::exitSlot()
{
    window2::close();
}

[jsulm]

@Shodan close() is a slot, so you can connect it directly without creating one more slot :-)

[Shodan]

Thank you for the tip ;-)