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A subarea<%> is a containee area<%>.
All subarea<%> classes accept the following named instantiation arguments:
horiz-margin – default is 2 for control<%> classes and group-box-panel%, 0 for others; passed to horiz-margin
vert-margin – default is 2 for control<%> classes and group-box-panel%, 0 for others; passed to vert-margin
(send a-subarea horiz-margin) → (integer-in 0 1000)  | 
(send a-subarea horiz-margin margin) → void?  | 
margin : (integer-in 0 1000)  | 
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.
(send a-subarea vert-margin) → (integer-in 0 1000)  | 
(send a-subarea vert-margin margin) → void?  | 
margin : (integer-in 0 1000)  | 
Gets or sets the area’s vertical margin, which is added both to the top and bottom, for geometry management. See Geometry Management for more information.