The HeightList & WidthList properties dont appear to be in twips. Could you tell me what the HeightList & WidthList properties are measured in?
All control properties that specifies a size or a coordinate are measured in pixels. Uses TwipsPerPixelX and TwipsPerPixelY properties to convert twips coordinates to pixel coordinates. The control’s mouse events receive coordinates in twips, and they need to be converted if they are passed to one of the control’s properties or methods. See ItemFromPoint method.