Show with qdebug keyevent

RIVOPICO

Hi i want to show my filter in my main function but i couldn't.

```

Código filter.h:
#ifndef FILTRODEEVENTOSPERSONALIZADO_H
#define FILTRODEEVENTOSPERSONALIZADO_H

#include <QObject>

class FiltroDeEventosPersonalizado
  : public QObject
{
  Q_OBJECT

protected:

  bool eventFilter(QObject *obj, QEvent *event) override;
};
#endif // FILTRODEEVENTOSPERSONALIZADO_H


Código filter.cpp:

    ```
#include "filtrodeeventospersonalizado.h"
    #include <QEvent>
    #include <QDebug>
    #include <QKeyEvent>
    
    bool
    FiltroDeEventosPersonalizado::eventFilter(
        QObject *obj,
        QEvent *event)
    {
      if (event->type() == QEvent::KeyPress) {
        QKeyEvent* keyEvent = static_cast<QKeyEvent*>(event);
        if( keyEvent->key() == Qt::Key_A )
         qDebug() << "Tecla 'A' presionada";
        return true;
      }
    
      return QObject::eventFilter(obj, event);
    }

Main:

```

#include <QCoreApplication>
#include <filtrodeeventospersonalizado.h>
#include <QDebug>
int main(int argc, char *argv[])
{
QCoreApplication a(argc, argv);
FiltroDeEventosPersonalizado *filtro = new FiltroDeEventosPersonalizado;
a.installEventFilter(filtro);
return a.exec();
}

Hi i only want to show since qdebug my key pressed A. thx

raven-worx

@RIVOPICO
if thats all the code you are using, then maybe it is caused by the fact that there is no widget/window which would receive the key event.

RIVOPICO

@raven-worx but i can't show the event? with qdebug?

raven-worx

@RIVOPICO
as i said: there is no key event when there is no window to receive it.
Create one and it should work as expected.