Horizontal
When this style is set, the slider bar is displayed from left to right. The 
Lines property controls the height and the 
Size property controls the width.
Without this style instead the slider bar is displayed from top to bottom. The 
Lines property controls the width and the 
Size property controls the height.
 
Example - Define a horizontal slide-bar
screen section. ...   03 screen-1-sl-2 Slider      line 39.1      column 12.8      size 38.4 cells       lines 3.8 cells       id 10      horizontal      show-labels      min-val 10      max-val 100      page-size 5      labels-increment 15      .  |