We have a addin button that, among other things, takes the feature vertices of a user-specified layer and displays them as marker elements on the map. The markers are then stored in a IGraphicsContainer until the next refresh of the map. This all works fine, without issue.
However, recently some of our users have begun using a reference scale, set in the Data Frame properties, for a project. Having a reference scale set causes the marker elements to also be scaled as the user zooms in and out in the map, which is not desirable.
I know that it is possible to prevent a feature layer's symbology from being scaled when a reference scale is set, by toggling IFeatureLayer2.ScaleSymbols. Is it possible to do the same for the marker elements?
Thank you in advance for any pointers/guidance you may have!