How to create and name a slot in a different class than MainWindow?

Question

I am currently using QT Creator, which created a UI file for viewing, and I am starting QT.

There is a part, I wonder how I can create another class for, say, GraphicView, so that I can send a signal and slot to this class instead of the main form?

Side question: why can't I edit Singal and Slot elsewhere than MainWindow in signal / slot editing mode? (the edit button is not activated if it is not MainWindow, so I should use this signal by default). Let's say I need to create ToggleFullScreen (), but the editing is gray, how do I do this?

Answer 1

. UI .
http://qt.nokia.com/doc/4.5/designer-using-a-ui-file.html

: . .
, , Q_OBJECT , !

Answer 2

• , QMainWindow, .