Hi,
I am new to QT4 and I want to show items of qtreewidget be opened when the tree displayed ,earlier i am working with qt3 and using
item->setopen(TRUE);

Following are my problems:-

(1) which will be used in qt4 to show items as opened when tree displayed.
(2) How i can adjust column size of QTreeWidget in QT Designer or through coding,so that when i scroll the items appears in column adjusted according to their string size.
(3) How I can show Horizontal scroll bar added to qtreewidget.

Thanks and Regards