The maximum height of the widget, in character units.
Data type: DECIMAL
Access: Readable/Writeable
Applies to: DIALOG-BOX widget, FRAME widget, WINDOW widget
For a non-scrollable frame, VIRTUAL-HEIGHT-CHARS has the same value as the HEIGHT-CHARS attribute. For a scrollable frame, VIRTUAL-HEIGHT-CHARS specifies the height of the entire frame while HEIGHT-CHARS specifies the height of the visible portion of the frame.