Forward Declaration of struct QCloseEvent ????

[drake1983]

Hi everybody!!!
I have a problem using QCloseEvent inside a Widget .When I'm try to compile my program I get two errors:
- invalid use of incomplete type 'struct QCloseEvent'
- forward declaration of 'struct QCloseEvent'

I have read the Qt4 Doc about closeEvent but I can find the problem.


This is my widget.h

#ifndef WIDGET_H
#define WIDGET_H
 
#include <QtGui/QWidget>
 
namespace Ui
{
    class WidgetClass;
}
 
class Widget : public QWidget
{
    Q_OBJECT
 
public:
    Widget(QWidget *parent = 0);
    ~Widget();
 
protected:
void closeEvent( QCloseEvent *event);
private:
    Ui::WidgetClass *ui;
};
 
#endif // WIDGET_H

#ifndef WIDGET_H
#define WIDGET_H

#include <QtGui/QWidget>

namespace Ui
{
    class WidgetClass;
}

class Widget : public QWidget
{
    Q_OBJECT

public:
    Widget(QWidget *parent = 0);
    ~Widget();

protected:
void closeEvent( QCloseEvent *event);
private:
    Ui::WidgetClass *ui;
};

#endif // WIDGET_H

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and this my widget.cpp

#include "widget.h"
#include "ui_widget.h"
 
Widget::Widget(QWidget *parent)
    : QWidget(parent), ui(new Ui::WidgetClass)
{
    ui->setupUi(this);
}
 
Widget::~Widget()
{
    delete ui;
}
 
void Widget::closeEvent(QCloseEvent *event)
{
 event->ignore();
}

#include "widget.h"
#include "ui_widget.h"

Widget::Widget(QWidget *parent)
    : QWidget(parent), ui(new Ui::WidgetClass)
{
    ui->setupUi(this);
}

Widget::~Widget()
{
    delete ui;
}

void Widget::closeEvent(QCloseEvent *event)
{
 event->ignore();
}

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Any help?
Thanks!!!