The fixed_height attribute takes a boolean value (true or false),
with default value false. It has different meaning on a dialog, as
opposed to other tiles.
In a dialog, if fixed_height is false, the entire dcl dialog
gets vertically resizable. This is a BricsCAD only feature, but it
won't disturb usage of the DCL dialog in other CAD
applications.
In any other tile, the fixed_height attribute influences
distribution of extra height during layouting of the dialog. If
fixed_height is true, the tile will not receive any extra height,
so it will occupy its minimum height only. If fixed_height is
false, then the tile will receive extra height during layouting -
that is, if extra height is available. This attribute is typically
useful if multiple tiles appear in the same column, to control
which tiles in the column can make more use of additional
height.
Note: if a vertical alignment of a row and sibling child tiles with a uniform
space distribution is desired, it is required to enable the
fixed_height attribute for the row tile. Otherwise, the row
occupies more space.
related tiles
All of the child tiles or a dialog can have an fixed_height
attribute..