author: IUnTreeView is the common interface to a tree-view-widget. A tree-viewauthor: displays a tree-structure of nodes.author:
Commits the changes of a tree.
Sets whether the tree is editable or not.
Clears teh commit handler
Commits the changes of a tree. This function is not needed by every implementation
Gets the root-node of the tree-view
current root-node
Gets the node which was opened or closed with the last event or null if the last event was a selection
toggled root-node
Sets a commit handler which is called each time the tree view is commited
Parameters: xHandler - handler
Sets whether the tree is editable or not. This may not work in all channels!
Sets a new root-node to the tree-view
the previous root-node
Parameters: xRoot - new root-node