From Xojo Documentation
| This item was deprecated in version 2019r2.
| This method is only available on the macOS platform.
For cross-platform compatibility, use ＃If...＃Endif with the Target... specifiers to make sure you will not attempt to use this method on an incompatible platform.
Returns as a String the data this object refers to. If it is a property that holds one value, such as AddressBookContact.FirstName, it returns the value. If it contains multiple strings, it returns the first string.