This action returns the data dictionary defaults for all data dictionary fields that have a default value set.
http://www.myserver.com/evj/ExtraView/ev_api.action?
user_id=username
&password=password
&statevar=get_field_defaults
The information returned from this call is of the format:
field_name:default_value
One row of data is returned for each field in the data dictionary that has a default value.