One issue at a time please. We will ignore your question about the iFrame for now.
I'm sure what you are trying to do can be accomplished. If the Gravity Form is loaded in a page you need information from, you can use the gform_pre_render http://www.gravityhelp.com/documentation/page/Gform_pre_render filter to populate anything you like. You need access to the post global, then you can use any of the WordPress functions to access information about that post, including the slug, custom post type, template, etc.
Can you give an example of exactly what you want to do? A link to the page, and what information you need from that page, and where you want to store it in your Gravity Form?
Posted 9 years ago on Thursday December 13, 2012 | Permalink