copying and assignment constructors

[TheKedge]

Hello all,
I can guess that the following warning it's not very important but how can I avoid it?

I derive a class from some base class. The compiler tells me that the copy constructor could not be generated for the base class. I get a similar second warning about the assignment operator.

The concrete example:

class SliderWidget :public QGroupBox
{
	Q_OBJECT
 
public:
	SliderWidget(Qt::Orientation orientation = Qt::Horizontal, QWidget * parent = 0 ):QGroupBox(parent)
{
       // here I call new for some widgets and do the connect stuff
}
//there is no destructor defined
};

class SliderWidget :public QGroupBox
{
	Q_OBJECT

public:
	SliderWidget(Qt::Orientation orientation = Qt::Horizontal, QWidget * parent = 0 ):QGroupBox(parent)
{
       // here I call new for some widgets and do the connect stuff
}
//there is no destructor defined
};

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What would a copy constructor look like? Do I call new set all the member variables in the new instance and pass it back as the copy?
An assignement operator? Do I have to so the same as in the copy constructor?
thanks
K