#ifndef MyListWidget_H#define MyListWidget_H#include <QListWidget>#include <QKeyEvent>#include <QDebug>class MyListWidget : public QListWidget{ Q_OBJECTpublic: explicit MyListWidget(QWidget *parent = 0): QListWidget(parent){}public slots: void MyPressed(QKeyEvent *event);protected: void keyPressEvent(QKeyEvent *event) { if (event->key() == Qt::Key_A) qDebug()<<"Абра кадабра"; //Или emit MyPressed(event); }};#endif // MyListWidget_H