SAP ABAP Class CL_ISH_NL_C_MESSAGE_VIEWER (message viewer) is using

• Class (14)
• Data Element (4)
• Table/Structure Field (30)
• Function Module (1)
• Interface (1)
• Class Method (5)
• Table (2)

#	Object Type	Object Name	Object Description	Note
1	Data Element	BAPI_MTYPE	Message type: S Success, E Error, W Warning, I Info, A Abort
2	Data Element	ICON_D	Icon in text fields (substitute display, alias)
3	Data Element	SYSCOLS	Screen Columns
4	Data Element	SYSROWS	Screen Lines