SAP ABAP Program ST20_SCANNER (Include ST20_SCANNER) is using

• Class (2)
• Table/Structure Field (21)
• Function Module (2)
• Message Class (1)
• Message Number (3)
• Table (1)

#	Object Type	Object Name	Object Description	Note
1	Class	CL_GUI_SIMPLE_TREE	Simple Tree Control
2	Class	CL_TREE_CONTROL_BASE	Internal Tree Control Class