Redraw Graphics Path when mouseMoved

I' ve drawn roundRectangle using Graphics Path OnPaintEvent and I already added mouseevent to know if cursor was over the g.p .

void Round_MouseMove(object sender, MouseEventArgs e)
        {
          Point mousePt = new Point(e.X, e.Y);
          if (_path != null)
             if (_path.IsVisible(e.Location))
                MessageBox.Show("GraphicsPath has been hovered!");
        }

Question: is there a way to resize or redraw(hide previous then draw new) a graphicsPath runtime?