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Version 3 Technical Highlights - ShowScroll

This is a called subroutine taking nine parameters designed to display the scroll bars on a screen. There are basically two sets of coordinate attributes (X + Y) and a colour attribute. The parameters are as follows

       VertX   The X position for the start of the vertical scroll line

       VertY   The Y position for the start of the vertical scroll line

       Depth   The depth of the vertical scroll line

    VertDone   The position within the vertical line to position the scroll
               button expressed as a decimal fraction of one. E.G. If the
               button should be placed half way along the line use .5.

      HorizX   The X position for the start of the horizontal scroll line

      HorizY   The Y position for the start of the horizontal scroll line

       Width   The width of the horizontal scroll line

   HorizDone   The position within the horizontal line to position the
               scroll button expressed as a decimal fraction of one. E.G.
               If the button should be placed one tenth along the line
               use .1.

   Attribute   The escape sequence for the colours of the bars.
(Volume 4, Issue 6, Page 7)
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