Overwrite QKeyEvent

[haldrik]

Hello everibody

I need get how to overwrite the QKeyEvent, to get the tab behaviour with the enter-return key.

[JimDaniel]

You could more easily override a QWidget and reimplement its keyPressEvent() or keyReleaseEvent(), catch the Enter Key, then do whatever you want...

#ifndef KEY_WIDGET_H
#define KEY_WIDGET_H
 
#include <QWidget>
 
class KeyWidget : public QWidget
{
    public:
        KeyWidget();
        virtual ~KeyWidget();
 
    protected:
        void keyReleaseEvent(QKeyEvent * ke);
}
 
#endif //KEY_WIDGET_H
 
#include "keywidget.h"
 
KeyWidget::KeyWidget() {}
KeyWidget::~KeyWidget() {}
 
void keyReleaseEvent(QKeyEvent * ke)
{
    if(ke->key() == Qt::Key_Return)
    {
        //do something...
    }
}

#ifndef KEY_WIDGET_H
#define KEY_WIDGET_H

#include <QWidget>

class KeyWidget : public QWidget
{
    public:
        KeyWidget();
        virtual ~KeyWidget();

    protected:
        void keyReleaseEvent(QKeyEvent * ke);
}

#endif //KEY_WIDGET_H

#include "keywidget.h"

KeyWidget::KeyWidget() {}
KeyWidget::~KeyWidget() {}

void keyReleaseEvent(QKeyEvent * ke)
{
    if(ke->key() == Qt::Key_Return)
    {
        //do something...
    }
}

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[haldrik]

Ok, but how I can use this reimplemented QWidget's function on a desired widget?

[caduel]

either
* derive from the widget and override the method there
* or install an event filter QObject::installEventFilter() (this is the way to go if you need to watch many widgets and esp. if you have to watch widgets that you did/can not implement yourself.