keyPressEvent no reaction

Question

I am writing on QT. OpenGL is connected, work properly, but the events and keyPressEvent mousePressEvent not respond to keystrokes.

class MainWindow : public QGL         


        

Answer 1

Make sure that the MainWindow accepts Focus by setting

QWidget::setFocusPolicy()

Also you should call the base implementation of QWidget::keyPressEvent as stated here. Is there another Widget which has the focus and does not pass the KeyEvent?