SAP ABAP Program ST20_MAIN (Include ST20_MAIN) is using

• Class (3)
• Table/Structure Field (6)
• Function Module (1)
• Message Class (1)
• Message Number (1)
• Class Method (2)
• Table (2)
• Transaction Code (3)

#	Object Type	Object Name	Object Description	Note
1	Table/Structure Field	SCREEN - ACTIVE	SCREEN-ACTIVE
2	Table/Structure Field	SCREEN - INPUT	SCREEN-INPUT
3	Table/Structure Field	SCREEN - NAME	SCREEN-NAME
4	Table/Structure Field	SCXTAB_TABSTRIP - ACTIVETAB	SCXTAB_TABSTRIP-ACTIVETAB
5	Table/Structure Field	SYST - DYNNR	ABAP System Field: Current Dynpro Number
6	Table/Structure Field	SYST - LSIND	ABAP System Field: Current List Level