info.historyHandle = esignal.get_RequestHistory(info.symbol, "D", IESignal.barType.btDAYS, 14, 0, 0);
...
private void esignal_OnBarsReceived(int lHandle)
{
	Debug.WriteLine("App Version:" + esignal.GetAppVersion);

	Debug.WriteLine("Called esignal_OnBarsReceived:" + lHandle + " " + historyHandleToIndex(lHandle) + " " + esignal.get_GetNumBars(lHandle));
	int index = historyHandleToIndex(lHandle);
	if ((index >= 0) && (esignal.get_GetNumBars(lHandle) > 0))
	{

		for (int i = esignal.get_GetNumBars(lHandle); i >= 0; i--)
                {
                    
                    IESignal.BarData bd2 = esignal.get_GetBar(lHandle, i);
                    Debug.WriteLine("-BarData:" + bd2.dtTime.ToShortDateString() + " " + bd2.dVolume);
                }
	}
}

output:

App Version:10.0.0 
Called esignal_OnBarsReceived:1 0 15
-BarData:12/30/1899 0
-BarData:12/30/1899 0
-BarData:12/30/1899 0
-BarData:12/30/1899 0
-BarData:12/30/1899 0
-BarData:12/30/1899 0
-BarData:12/30/1899 0
-BarData:12/30/1899 0
-BarData:12/30/1899 0
-BarData:12/30/1899 0
-BarData:12/30/1899 0
-BarData:12/30/1899 0
-BarData:12/30/1899 0
-BarData:12/30/1899 0
-BarData:12/30/1899 0
-BarData:7/14/2008 59421656