getColumnGap
getColumnGap() function
The value of horizontal spacing between columns of a matrix; If the ColumnGapRule is set to 3 (“Exactly”), then the unit is interpreted as twips (1/20th of a point) If the ColumnGapRule is set to 4 (“Multiple”), then the unit is interpreted as number of 0.5 em increments. In other cases ignored. Default: 0
Result
long