CloseEvent gives invalid use or incomplete 'struct QCloseEvent'

[nackasha]

Hello,

I am trying to override CloseEvent but i am getting the following error

invalid use of incomplete type 'struct QCloseEvent'
forward declaration of 'struct QCloseEvent'

Here is my code:

fullscreendial.h

#ifndef FULLSCREENDIAL_H
#define FULLSCREENDIAL_H
 
#include <QDialog>
 
namespace Ui {
    class fullScreenDial;
}
 
class fullScreenDial : public QDialog
{
    Q_OBJECT
 
public:
    explicit fullScreenDial(QWidget *parent = 0);
    ~fullScreenDial();
 
private:
    Ui::fullScreenDial *ui;
 
protected:
    void closeEvent(QCloseEvent *); 
    void reject();
};
 
#endif // FULLSCREENDIAL_H

#ifndef FULLSCREENDIAL_H
#define FULLSCREENDIAL_H

#include <QDialog>

namespace Ui {
    class fullScreenDial;
}

class fullScreenDial : public QDialog
{
    Q_OBJECT

public:
    explicit fullScreenDial(QWidget *parent = 0);
    ~fullScreenDial();

private:
    Ui::fullScreenDial *ui;

protected:
    void closeEvent(QCloseEvent *); 
    void reject();
};

#endif // FULLSCREENDIAL_H

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fullscreendial.cpp

#include "fullscreendial.h"
#include "ui_fullscreendial.h"
 
fullScreenDial::fullScreenDial(QWidget *parent) :
    QDialog(parent),
    ui(new Ui::fullScreenDial)
{
    ui->setupUi(this);
 
 
//    int x=1;
}
 
fullScreenDial::~fullScreenDial()
{
    delete ui;
}
 
void fullScreenDial::closeEvent( QCloseEvent * event) {
 
 
             event->ignore();
     }
 
void fullScreenDial::reject()
{
}

#include "fullscreendial.h"
#include "ui_fullscreendial.h"

fullScreenDial::fullScreenDial(QWidget *parent) :
    QDialog(parent),
    ui(new Ui::fullScreenDial)
{
    ui->setupUi(this);


//    int x=1;
}

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

void fullScreenDial::closeEvent( QCloseEvent * event) {


             event->ignore();
     }

void fullScreenDial::reject()
{
}

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Can you please let me know what I am doing wrong ?

Many thanks

[ChrisW67]

You need to have a declaration of the QCloseEvent class in order for the compiler to compile this code (this is not a Qt problem). The quickest way is to:

// In your header file
#include <QCloseEvent>
 
OR
// in your header
class QCloseEvent;
// and in your cpp file 
#include <QCloseEvent>

// In your header file
#include <QCloseEvent>

OR
// in your header
class QCloseEvent;
// and in your cpp file 
#include <QCloseEvent>

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