View/edit another profile, programatically getting the user being edited

I've written a module to validate profile fields, and it's working well.
What's missing is the ability to run the module against the user whose profile is being edited/viewed, not the logged-in user.
When I'm viewing or editing a profile using CB, is there a method to tell me what user I'm viewing/editing?
Thanks,
Fred

Depends entirely on how you've implemented your validation. Was it not possible to implement your validation using CB Code Field or CB Query Field? Both provide a means of implementing custom validation. CB Code Field provides Code Validation so you can implement custom PHP based validation and CB Query Field provides Query Validation so you can implement custom SQL based validation. Both also already support ajax validation out of the box.

Kyle - thanks for the reply.
Yes, the module code can be implemented in a CB Code field, and I have tested it there, and I'm aware of the CB Query Field, and have used both.

My question lies in user context...
Use Case:
I'm logged in as a SuperUser, viewing or editing another user's profile,
JFactory::getUser() returns the logged-in SuperUser, me
How do I retrieve the user whose profile I am editing/viewing?

Actually, I see that part of the solution is to write this as a CB Plugin, not a Joomla module...
FYI - the Joomla module I'm writing is a generic, configrable profile validation extension.

Thanks, Fred

CB Code Field and its Code Validation provides the user object for you. You can access it with $user from your custom PHP. I've no idea why you're trying to run validation from a Joomla module and don't see how that could possibly work for anything other than client side validation. To properly extend CB validation it should be a CB field as we've triggers in place for extending validation (e.g. see CB Code Field for example). The trigger will provide the edited users user object. Aside from that you'll have to pull the user id from GET and build a user object from that id.