internal void HoverAt(Point location)
{
if (session.Mode == DrawModes.DrawingPolylineExtraVertices ||
session.Mode == DrawModes.DrawingPolylineSecondVertex)
{
ShowNewPolylineSegment(location);
}
if (session.Mode == DrawModes.DrawingRectangleSecondCorner ||
session.Mode == DrawModes.ImportingPictureSecondCorner)
{
ShowNewRectangle(location);
}
HoverOverPointsAt(location);
view.RefreshImage();
}