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SCSFExport scsf_UseToolExampleHorizontalLine(SCStudyInterfaceRef sc)
{
  // Set configuration variables
  if (sc.SetDefaults)
  {
    sc.GraphName = "UseTool Example: Horizontal Line";
    sc.GraphRegion = 0;
    sc.FreeDLL = 0;
    sc.AutoLoop = 0; //No automatic looping

    return;
  }


  int &r_LineNumber = sc.GetPersistentInt(1);
  if (sc.IsFullRecalculation)
  {

    if (r_LineNumber != 0)
    {
      sc.DeleteUserDrawnACSDrawing(sc.ChartNumber, r_LineNumber);
      r_LineNumber = 0;
    }

    //Draw horizontal line during full recalculation.
    s_UseTool Tool;
    Tool.Clear();
    Tool.ChartNumber = sc.ChartNumber;

    //if (r_LineNumber != 0)
      //Tool.r_LineNumber = r_LineNumber;

    Tool.DrawingType = DRAWING_HORIZONTALLINE;
    Tool.DisplayHorizontalLineValue = 1;

    int DrawingIndex = sc.ArraySize - 4;
    Tool.BeginValue = sc.Close[sc.ArraySize - 1];
    Tool.Region = 0;
    Tool.Color = RGB(255, 0, 255); // Magenta
    Tool.LineWidth = 4;
    Tool.AddMethod = UTAM_ADD_ALWAYS;
    Tool.AddAsUserDrawnDrawing = 1;
    sc.UseTool(Tool);
    r_LineNumber = Tool.LineNumber;
  }
  else if (sc.UpdateStartIndex < sc.ArraySize - 1)//When there is a new bar
  {
    //Now move the drawing to the current closing price when a new bar has been added to the chart
    s_UseTool Tool;

    ///No need for this
    //sc.GetUserDrawingByLineNumber(sc.ChartNumber, LineNumber, Tool);

    Tool.Clear();
    Tool.ChartNumber = sc.ChartNumber;
    Tool.BeginValue = sc.Close[sc.ArraySize - 1];
    Tool.AddMethod = UTAM_ADD_OR_ADJUST;
    Tool.LineNumber = r_LineNumber;
    Tool.AddAsUserDrawnDrawing = 1;
    sc.UseTool(Tool);

  }

}