void OEDrawReactionArrow(OEImageBase &image, const OE2DPoint &bgn, const OE2DPoint &end, const OEPen &pen)
Draws a reaction arrow between two points using the given pen. See example in Figure: Example of drawing a reaction arrow.
- The image in which the arrow is drawn.
- bgn, end
- The begin and end points of the arrow.
- The graphical properties of the arrow.