Getting Z component from point in ArcGIS API for JavaScript?

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I am trying to get the z value from PointZ geometry from an ArcGIS map service, using the identify task. Setting returnGeometry=true only returns XY even though the Z value is there.

I can see the z value when I query via the REST API, using the returnZ=true parameter, so I know the data is there.

After researching all the options for the IdentifyParameters class, I fear that what I am trying to achieve is not possible using this approach, even though there is a returnZ option in other APIs.

So how do I get the z-value into my identify window?



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