public GraphicsPlus(HDC hdc)
        {
            GpGraphics Graphics = new GpGraphics();

            lastResult = NativeMethods.GdipCreateFromHDC(hdc, out Graphics);

            SetNativeGraphics(Graphics);
        }

GdipIsVisiblePathPointI(GpPath  path, int x, int y,
                        GpGraphics graphics, out bool result);

 protected GraphicsPlus(GpGraphics Graphics)
 {
     lastResult = GpStatus.Ok;
     SetNativeGraphics(Graphics);
 }

 protected virtual void Dispose(bool disposing)
 {
     if (disposing)
     {
     }
     // free native resources if there are any.
     if ((IntPtr)nativeGraphics != IntPtr.Zero)
     {
         NativeMethods.GdipDeleteGraphics(nativeGraphics);
         nativeGraphics = new GpGraphics();
     }
 }

GdipDrawPie(GpGraphics graphics, GpPen pen, float x, float y,
      float width, float height, float startAngle,
float sweepAngle);

GdipDrawEllipse(GpGraphics graphics, GpPen pen, float x, float y,
          float width, float height);

GdipDrawRectangleI(GpGraphics graphics, GpPen pen, int x, int y,
       int width, int height);

GdipFillPieI(GpGraphics graphics, GpBrush brush, int x, int y,
int width, int height, float startAngle, float sweepAngle);

GdipFillPie(GpGraphics graphics, GpBrush brush, float x, float y,
float width, float height, float startAngle, float sweepAngle);

GdipFillEllipseI(GpGraphics graphics, GpBrush brush, int x, int y,
  int width, int height);

 GdipFillEllipse(GpGraphics graphics, GpBrush brush, float x, float y,
                 float width, float height);

 GdipFillPolygon2I(GpGraphics graphics, GpSolidFill brush,
 GpPoint[] points, int count);

GdipDrawBeziersI(GpGraphics graphics, GpPen pen, GpPoint[] points,
          int count);

GdipDrawRectangle(GpGraphics graphics, GpPen pen, float x, float y,
       float width, float height);

GdipFillPath(GpGraphics graphics, GpBrush brush, GpPath path);

GdipDrawRectanglesI(GpGraphics graphics, GpPen pen, GpRect[] rects,
        int count);

GdipFillClosedCurveI(GpGraphics graphics, GpBrush brush,
                GpPoint[] points, int count);

GdipDrawEllipseI(GpGraphics graphics, GpPen pen, int x, int y,
          int width, int height);

GdipDrawLinesI(GpGraphics graphics, GpPen pen, GpPoint[] points,
        int count);

GdipDrawPieI(GpGraphics graphics, GpPen pen, int x, int y,
      int width, int height, float startAngle, float sweepAngle);