Menu Show
Displays a menu screen.
Return
0 (reserved for future use)
Parameters
l Flags
(IN) - Combination of the DSPMNU_xxxx flags.
sa Opts
(IN) - List of options to be presented in the display.
i Opt Sel
(IN) - Selected option (in highlight), given that 0 (zero) represents the the first of the list. If there are no selected options, -1 shall be used.