popupmenu for QTreeWidget's item when a particular item is selected.

Hello to all,
I am new to Qt 4.5 IDE and windows-xp as my operating system.
I am not getting any idea how to show a popupmenu from an existing QTreeWidget's item by pressing right button of mouse.

Thanks in advance for reply.

Override contextMenuEvent in QTreeWidget and populate your custom menu at the clicked position.