MacdCrossOver.Signal

IndicatorDataSeries Signal {get;}

macdCrossOver.Signal: IndicatorDataSeries

//...
private MacdCrossOver _macdCrossOver;

protected override void Initialize()
{
    _macdCrossOver = Indicators.MacdCrossOver(26, 12, 9);
}

public override void Calculate(int index)
{
    Signal[index] = _macdCrossOver.Signal[index];
    //...
}

import clr
clr.AddReference("cAlgo.API")

from cAlgo.API import *

class Test():
    def initialize(self):
        # 26, 12 and 9 are the long cycle, the short cycle and the signal periods
        self.macdCrossOver = api.Indicators.MacdCrossOver(26, 12, 9)

    def calculate(self, index):
        api.Signal[index] = self.macdCrossOver.Signal[index]

{
  "LineOutputs": [
    {
      "Name": "Signal"
    }
  ]
}