The number of display units between frames in a window. In graphical interfaces the display units are pixels. In character interfaces the display units are character cells.
Data type: INTEGER
Access: Readable/Writeable
Applies to: SESSION system handle
By default, the value for FRAME-SPACING is the height of one row in the default system font. In character interfaces, this is the character cell height. In graphical interfaces, this is the number of pixels returned by the PIXELS-PER-ROW attribute.