SAP ABAP Program /EACC/READ_REG_I01 (Include COLUMN_TREE_CONTROL_DEMOI01) is using

• Class (6)
• Message Number (1)
• Class Method (2)

#	Object Type	Object Name	Object Description	Note
1	Class	CL_GUI_CFW	Control Framework Basic Class
2	Class	CL_GUI_COLUMN_TREE	Column Tree Control
3	Class	CL_GUI_CONTAINER	Abstract Container for GUI Controls
4	Class	CL_GUI_CONTROL	Proxy Class for Control in GUI
5	Class	CL_GUI_CUSTOM_CONTAINER	Container for Custom Controls in the Screen Area
6	Class	CL_GUI_OBJECT	Proxy Class for a GUI Object