There is a class chart for Qt 4.3 here:
http://doc.qt.digia.com/extras/qt43-class-chart.pdf
I'm not aware of any class charts for more recent versions than that.
Question
Do you know of any decent image or pdf of the class hierarchy of Qt 4?
Such as they have for Qt 3:
Solution
There is a class chart for Qt 4.3 here:
http://doc.qt.digia.com/extras/qt43-class-chart.pdf
I'm not aware of any class charts for more recent versions than that.