the child on which the delegate is

Hello,

Is there a short way to be able to get the child (treewidgetitem) of the treewidget which the delegate item is located on. A combobox is delegated on each row. Through the combobox I click, I want to find out the treeitemwidget the combobox is on. How can I do except from going through all the children of the root and comparing if it is the one I search for?

Thanks a lot...