Need help to create Transparent QTreeView

[vajindarladdad]

Hi all intelligent peple.
I am developing an application in which i have a QTreeView.
I want to make it transparent , so that i can see the (image , logo etc) which is behind the QTreeView.

Best Example to explain the problem is (TreeView in Catia )

[jpn]

treeView->setStyleSheet("QTreeView { backround: transparent }");