isCOBOL Evolve : User Interface : Controls Reference : SLIDER : Styles : Transparent
Transparent
When this style is set, the background becomes transparent.
 
Example - Define a slider with transparent background
screen section.
...
  03 screen-1-sl-2 Slider
     transparent
     line 39.1
     column 12.8
     size 38.4 cells 
     lines 3.8 cells 
     id 10
     horizontal
     show-ticks
     show-labels
     min-val 10
     max-val 100
     page-size 5
     minor-tick-spacing 1
     major-tick-spacing 5
     labels-increment 15
     .