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SCSFExport scsf_delete_user_drawing(SCStudyGraphRef sc)
{
  int &ln = sc.PersistVars->i1;

  if (sc.SetDefaults)
  {
    sc.GraphName = "Delete User Drawing Test";
    sc.FreeDLL = 1;
    sc.AutoLoop = 1;
    sc.GraphRegion = 0;
    return;
  }

  if(sc.Index == 0)
  {
    if(ln == 0)
    {
      s_UseTool tool;
      tool.AddAsUserDrawnDrawing = 1;
      tool.ChartNumber = sc.ChartNumber;
      tool.DrawingType = DRAWING_TEXT;
      tool.Region = sc.GraphRegion;
      tool.Color = COLOR_RED;
      tool.FontSize = 13;
      tool.TextAlignment = DT_TOP | DT_LEFT;
      tool.UseRelativeVerticalValues = 1;
      tool.BeginDateTime = 2;
      tool.BeginValue = 98.0f;
      tool.Text = SCString().Format("I'm Text - %f", (float)sc.LatestDateTimeForLastBar);
      tool.AddMethod = UTAM_ADD_OR_ADJUST;
      sc.UseTool(tool);
      ln = tool.LineNumber;
    }
  }

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