GetPressureAltitude vs GetFlightLevel

[Kent Dong 1191810 0]

In plugin development, there are two methods to retrieve the altitude of an aircraft, CAircraftPositionData::GetPressureAltitude and CAircraftPositionData::GetFlightLevel. It looks like one is for aircrafts below the TA and the other is for those above the TA. But it seems there is no way to get the value of current TA set in ES. So how should we determine which method we should use to retrieve the altitude of an aircraft?

 

Thanks.

[Alen Smriko 1034823 0]

Pressure altitude is not QNH altitude, yet QNE altitude