code in the exit_saplv56u_004

here i have to make the code in exit_saplv56u_004 in include zxv56u11.

there are tables defined initself.

my confusion is as i have to take the shptyp from vttp table,how i can define it.

how to code the read statement?

look at the code how the tables are deifned,soi have to just read it and how???

FUNCTION EXIT_SAPLV56U_004.

*"----

""Lokale Schnittstelle:

*" TABLES

*" I_XVTTK STRUCTURE VTTKVB

*" I_YVTTK STRUCTURE VTTKVB

*" I_XVTTP STRUCTURE VTTPVB