lines under program control

[Martin Haesler <mhaesler@xxxxxxxxxxxxxx>]

Have been monitoring this forum and am impressed by the many
good tips being posted.

I am able to draw lines under program control but have two problems.

1. to display the line only when I want to
2. to extend the line beyond the last data point as a projection

The following program and attached gif illustrate the problem

Any help will be very much appreciated

Regards ... Martin
Attachment Converted: "c:\eudora\attach\line.gif"