SAP ABAP Program LVBWLF03 (subroutines for tree) is using

• Class (4)
• Table/Structure Field (32)
• Function Module (2)
• Message Class (1)
• Message Number (2)
• Class Method (6)
• Table (5)

#	Object Type	Object Name	Object Description	Note
1	Class Method	CL_GUI_COLUMN_TREE - CONSTRUCTOR	Column Tree Control
2	Class Method	CL_ITEM_TREE_CONTROL - ADD_NODES_AND_ITEMS	Internal Tree Control Class
3	Class Method	CL_ITEM_TREE_CONTROL - GET_SELECTED_ITEM	Internal Tree Control Class
4	Class Method	CL_ITEM_TREE_CONTROL - ITEM_SET_TEXT	Internal Tree Control Class
5	Class Method	CL_TREE_CONTROL_BASE - DELETE_ALL_NODES	Internal Tree Control Class
6	Class Method	CL_TREE_CONTROL_BASE - GET_SELECTED_NODES	Internal Tree Control Class