Support Board

SCSFExport scsf_ReadFromUnderlyingIntradayFileExample(SCStudyInterfaceRef sc)
{
  if (sc.SetDefaults)
  {
    // Set the configuration and defaults

    sc.GraphName = "Read from Underlying Intraday File Example";


    sc.AutoLoop = 0;

    return;
  }

  if (sc.LastCallToFunction)
    return;

  s_IntradayRecord IntradayRecord;

  for (int FileIndex = sc.FileRecordIndexOfLastDataRecordInChart; FileIndex >= sc.FileRecordIndexOfLastDataRecordInChart - 10; FileIndex--)
  {
    bool FirstIteration = FileIndex == sc.FileRecordIndexOfLastDataRecordInChart;
    bool LastIteration = FileIndex <= sc.FileRecordIndexOfLastDataRecordInChart - 10;
    IntradayFileLockActionEnum IntradayFileLockAction = IFLA_NO_CHANGE;

    if (FirstIteration && LastIteration)
      IntradayFileLockAction = IFLA_LOCK_READ_RELEASE;
    else if (FirstIteration)
      IntradayFileLockAction = IFLA_LOCK_READ_HOLD;
    else if (LastIteration)
      IntradayFileLockAction = IFLA_RELEASE_AFTER_READ;

    sc.ReadIntradayFileRecordAtIndex(FileIndex, IntradayRecord, IntradayFileLockAction);

    SCDateTimeMS TradeTimestampInChartTimeZone = IntradayRecord.DateTime;

  }

  // Could also use this line of code to release the lock if not sure when will be complete
//with reading and want to do it as a separate operation. An index of -1 signifies not actually to
// perform a read.
  
///sc.ReadIntradayFileRecordAtIndex( -1, IntradayRecord, IFLA_RELEASE_AFTER_READ);
    

}