public static extern GpStatus GdipFillEllipseI( GpGraphics graphics, GpBrush brush, int x, int y, int width, int height);
public static extern GpStatus GdipDeleteBrush( GpBrush brush);
public static extern GpStatus GdipFillEllipseI( GpGraphics graphics, GpBrush brush, int x, int y, int width, int height);
public static extern GpStatus GdipDeleteBrush( GpBrush brush);