Signals for spinbuttons

[Valery Avaux <vavaux ulb ac be>]

Hello

I use spinbuttons in my program and I have already configured it to get
value of the spinbuttons if I use it.
But I don't know to do to get value if I directly edit number and press
return. Wich signal do I have to use?

Other things, if I changed values in a second window, close this window
and reopen it, it takes default values.
Is it a way to update default values ?

Thanks

Valery Avaux