horizontal-alignment% : class?

superclass: dllist<%>

extends:  alignment<%>   alignment-parent<%>

(new horizontal-alignment%   [parent parent]      [ [show? show?]       [after after]])

→ (is-a?/c horizontal-alignment%)

parent : (is-a?/c alignment-parent<%>)

show? : boolean? = #t

after : (or/c (is-a?/c alignment<%>) false/c) = #f

Inserts a new horizontal-alignment container into parent – optionally after a given container also in parent. The new container can be initially shown or hidden.