I am using MS Chart in VB6, running under Embedded XP (or desktop XP) to display data in 2D-Line format. I am trying to find a way to highlight small portions of the chart to identify 'alarm' areas. I tried changing the pen color during data load, but the last color selected turns the entire series that color.

This is single-dimensional data (one column). I also need a way to leave a marker on the graph where the user clicks (to...