isCOBOL Evolve : User Interface : Controls Reference : BAR : Properties : Width
Width
This property, expressed in pixels, sets the thickness of the bar.
 
Example - Define a bar on screen section with WIDTH 3
screen section.
...
  03 screen-1-br-1 Bar
     line 8.0
     column 5.0
     color 7
     size 45.0 cells 
     id 2
     width  = 3
     .