A vertical pane arranges its subwindows in a single column. See also 
pane%.
| | (new vertical-pane% |  |  |  |  | [parent parent] |  |  |  | [ | [vert-margin vert-margin] |  |  |  |  | [horiz-margin horiz-margin] |  |  |  |  | [border border] |  |  |  |  | [spacing spacing] |  |  |  |  | [alignment alignment] |  |  |  |  | [min-width min-width] |  |  |  |  | [min-height min-height] |  |  |  |  | [stretchable-width stretchable-width] |  |  |  |  | [stretchable-height stretchable-height]]) |  | 
 | 
| → (is-a?/c vertical-pane%) | 
|  | 
| vert-margin : (integer-in 0 1000) = 0 | 
| horiz-margin : (integer-in 0 1000) = 0 | 
| border : (integer-in 0 1000) = 0 | 
| spacing : (integer-in 0 1000) = 0 | 
| |  | alignment |  | : |  |  |  |  |  |  | = |  | '(center top) | 
 | 
| min-width : (integer-in 0 10000) = graphical-minimum-width | 
| min-height : (integer-in 0 10000) = graphical-minimum-height | 
| stretchable-width : any/c = #t | 
| stretchable-height : any/c = #t | 
For information about the 
horiz-margin and 
vert-margin
    arguments, see 
subarea<%>. For information about the 
border, 
spacing, and 
alignment
    arguments, see 
area-container<%>. For information about the
    
min-width, 
min-height, 
stretchable-width, and
    
stretchable-height arguments, see 
area<%>.