Problem with qvector

[zorro68]

I have made a class like this:

class Listbox : public QWidget
{
    Q_OBJECT
public:
    Listbox(int width, QWidget *parent = 0);
......

class Listbox : public QWidget
{
    Q_OBJECT
public:
    Listbox(int width, QWidget *parent = 0);
......

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and then in other class I define this:

QVector<Listbox> *listbox;
...
listbox = new QVector<Listbox>();

QVector<Listbox> *listbox;
...
listbox = new QVector<Listbox>();

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And I try to append items to my vector like this:

listbox.append(Listbox);

listbox.append(Listbox);

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But I can't. I get errors.

How can I append items to my empty qvector of Listboxes????