System.Drawing.PieChart.PieSlice.DisposeBrushes C# (CSharp) Method

        protected void DisposeBrushes()
        {
            if (m_brushSurface != null) {
                m_brushSurface.Dispose();
                m_brushSurface = null;
            }
            if (m_brushStartSide != null) {
                m_brushStartSide.Dispose();
                m_brushStartSide = null;
            }
            if (m_brushEndSide != null) {
                m_brushEndSide.Dispose();
                m_brushEndSide = null;
            }
            if (m_brushPeripherySurface != null) {
                m_brushPeripherySurface.Dispose();
                m_brushPeripherySurface = null;
            }
        }