passing criteria to embedded form

passing criteria to embedded form

Publishing a form so a login is not required results is a very long url. This is too long to include in a tweat. Is there a way to mark a form as public so it does not need the long security code?

I can embed the form in a website and then use the webpage link. However I do need to pass some criteria to the form. Is there a method for a form to read the current url? If so I can then parse that string to get the passed vales.