I have created a new plugin structure using civix. It has created the elements I wanted in the database.
I have used dogregistry_civicrm_tabset to add a tab to my contacts pages. I used civix to create a page with a php file and a tpl file.
The question I have is how do I transfer a value to the page php file? I would like to send it contact ID so I can query the database for the entries for that contact but I'm not sure how to do that or whether it is stored already in a variable I can tap into?
Thanks for your help. Norm