Version 3 Technical Highlights - ShowScroll [Revelation On-Line Wiki]

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====== Version 3 Technical Highlights - ShowScroll=====

^Published By^Date^Version^Knowledge Level^Keywords^
|Sprezzatura Ltd|01 NOV 1992|3.0+|EXPERT|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)