SAP ABAP Program DD_ALV_FREE_TOP (ALV use with definable page header) is using

• Class (3)
• Table/Structure Field (23)
• Function Module (5)
• Class Method (8)
• Program (2)
• Table (3)

#	Object Type	Object Name	Object Description	Note
1	Function Module	REUSE_ALV_EVENTS_GET	Returns table of possible events for a list type
2	Function Module	REUSE_ALV_GRID_DISPLAY	Output of a simple list (single-line)
3	Function Module	REUSE_ALV_VARIANT_DEFAULT_GET	Read default display variant (description only, w/o field catalog)
4	Function Module	REUSE_ALV_VARIANT_EXISTENCE	Checks whether a display variant exists
5	Function Module	REUSE_ALV_VARIANT_F4	Display variant selection dialog box