Sends out an APINotify_ClassificationVisibilityChanged project event notification to the other add-ons to state that at least one classification’s visibility has changed.
    GSErrCode  ACAPI_Notify_ClassificationVisibilityChanged ();
    
    
Return Values
- NoError
- The function completed successfully.
For other common errors see the list of error codes.
Requirements
- Version: API 21 or later
- Header: ACAPinc.h