Release 10.1A: OpenEdge Development:
Progress 4GL Reference

RETURN-VALUE-DATA-TYPE attribute

When you dynamically invoke a user-defined function, get an attribute, or run a method, RETURN-VALUE-DATA-TYPE lets you do one of the following to the return value:

Detect its data type.
Cause it to be converted to a different data type.

If you set RETURN-VALUE-DATA-TYPE to a data type other than the expected data type before executing the dynamic invoke, the value returned is automatically converted to that data type. Otherwise, when the dynamic invoke returns, RETURN-VALUE-DATA-TYPE indicates the data type of the value returned.

Data type: CHARACTER

Access: Readable/Writable

Applies to: CALL object handle

Syntax

RETURN-VALUE-DATA-TYPE [ = datatype ]

datatype

A CHARACTER expression indicating one of the following:

“CHARACTER”
“DATE”
“LOGICAL”
“INTEGER”
“DECIMAL”
“RAW”
“HANDLE”

The default is the Unknown value (?).