Release 10.1A: OpenEdge Development:
ADM Reference

showDataMessages

Returns the name of the field (if any) from the first error message to allow the caller to use it to position the cursor.

Location: filter.p

Parameters: None

Returns: CHARACTER

Notes: Invokes fetchMessages() to retrieve database update-related error messages), and displays them in an alert-box of type error. This function expects to receive back a single string from fetchMessages with one or more messages delimited by CHR(3), and within each message the message text, Fieldname (or blank) + a Tablename (or blank), delimited by CHR(4), if present.