How to get a signal or at least something from qtablewidget when a cell is not selected?

Question

Qt

Hello. There is a table. The user can click on it to select the desired field and get detailed information. It is necessary for me that when the user clicked past the field or into another field or button, receive a signal or at least something. I need to bind one button to it.

Answer 1

tblWidget->installEventFilter(this);
...
bool eventFilter(QObject *obj, QEvent *event)
{
if (obj == tblWidget&& event == QEvent::MouseButtonPress)
{
QMouseEvent *mouseEvent = static_cast(event);
if (!tblWidget->itemAt(mouseEvent->pos())) {
...
}
}
// standard event processing
return QObject::eventFilter(obj, event);
}