[xml] Using psvi field as a second pointer in addition to _private

I am writing an application which needs two separate things connected by an libxml2 node...

Is it possible to use the psvi field to do that if I avoid using schema validation? If so what must I avoid doing?

Or is there another easy way to store two pointers on an XML node?

Basically the XML tree is storing a hierarchical user interface layout, which is represented by a tree view widget in the user interface. The handle to the tree node is currently stored in the _private field and I need another field to store the widget handle of the preview window. So when changes are made to the xml node the preview window can be updated along with the node in the tree view.

Any ideas?


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