Value
This property represents the slider's position in the control. The range of values is set by the properties Min-Val, Max-Val, and Page-Size.
 
Example - Define a scroll-bar with value property
screen section.
...
  03 screen-1-sb-1 Scroll-Bar
     line 4.0
     column 41.5
     size 2.9 cells 
     lines 39.7 cells 
     color 229
     help-id 3029
     id 5
     value 10
     min-val 2
     max-val 20
     page-size 4
     .
...