horiz-margin in subarea<%>
Gets or sets the area's horizontal margin, which is added both to the right and left, for geometry management. See Geometry Management for more information.
(-> exact integer in [0, 1000]senda-subareahoriz-margin)Returns the current horizontal margin.
(-> voidsenda-subareahoriz-marginmargin)
margin: exact integer in [0, 1000]Sets the horizontal margin.