It is now possible to store text data outside of the record. In some cases it may be useful to get this information while the application is running. This can be done by using the structure XML file.

When you export the structure as XML, it lists whether a text field is stored outside of the record. Here are how the attributes are listed in the structure XML:

Setup	Attributes
Text with "stored in the record" unchecked	type="14"
Text with "stored in the record" checked	type="10"
Text with "stored in the record" unchecked and specify a "Internal Storage max size" value	type="14" and   text_switch_size="1000"

So in order to detect the stored in record attribute for a field, export the structure definition as XML ahead of time, then parse through the XML file, and look for type="10". You would also want to check for the text_switch_size attribute, as this could cause a field to have its contents stored in the record.