X Functions From AutoCad AutoLISP Functions previous page next page write-line AutoLISP Functions xdroom AutoLISP Reference Guide > AutoLISP Functions > X Functions Topics in this section xdroom Returns the amount of extended data (xdata) space that is available for an object (entity) xdsize Returns the size (in bytes) that a list occupies when it is linked to an object (entity) as extended data previous page start next page