ILS frequency in simconnect

Where do I read the ILS frequencies? Like the NAV ACTIVE FREQUENCY:1

Usually on the opposite side of the PFD, like the G1000. COM frequencies are on the Right, NAV frequencies are on the Left.

As this appears to be related to SDK, moving back to #sdk-discussion:simconnect.

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I use for fbw A32NX index 3, not 1 and 2 as in the simconnect doc.
Maybe it will help you, I do not know for other aircraft.

simConnect.AddToDataDefinition(EventDataDefineID.AP, “NAV ACTIVE FREQUENCY:3”, “MHz”, SIMCONNECT_DATATYPE.FLOAT64, 0.0f, SimConnect.SIMCONNECT_UNUSED);

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi, Pack = 1)]
public struct UserSimStruct
    public Double NAV_ACTIVE_FREQUENCY__3;
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