Gets or sets the area's minimum width (in pixels) for geometry management.
The minimum width is ignored when it is smaller than the area's minimum graphical width, or when it is smaller than the width reported by container-size if the area is a container. See Geometry Management for more information.
An area's initial minimum width is its graphical minimum width. See also get-graphical-min-size .
Returns the current minimum width (in pixels).
Sets the minimum width (in pixels); if w is smaller than the internal hard minimum, an exn:application:mismatch exception is raised.