Qt Debug: How to see function return value

[ozzy]

Qt version 4.8.4
In debug model

item->setGeometry(QRect(rect.x(), northHeight, rect.width(),
                                   item->sizeHint().height()));

I can see rect.x() return value use expression calculator

But i can't see item->sizeHint().height() return value!

item->setGeometry(QRect(item->geometry().x(),
                                    item->geometry().y(), rect.width(),
                                    item->sizeHint().height()));

The same
I can't get item->geometry().x() and item->sizeHint().height() value
How can i solve it ?