Hello - I hope someone can help, I am stuck. I have a QTreeView, it displays data using a delegate with only a Paint function (it is not editable data) in a QDialog window. I cannot seem to get a horizontal scroll bar. The horizontal scroll bar policy is AsNeeded. I have set the width on column 0 (there is only one column) to wider than the width of the widget, no luck (after setting the model). I have set the size hint for the row in the model to wider than the width of the widget, no luck. I have set the SizeHint for the option/index in the delegate to wider than the width of the widget, no luck. I have set the paint rectangle to wider than the widget width - still no horizontal scroll bar. It truncates the text display (which is wider than the widget width). No one seems to have trouble getting a horizontal scroll bar... but I sure am! I get a vertical scroll bar without any problem.