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ABL Reference
Handle Attributes and Methods Reference : PARAMETER attribute
 

PARAMETER attribute

The value of the Parameter (-param) startup parameter specified for the current session.
Data type: CHARACTER
Access: Read-only
Applies to: SESSION system handle
Use the Parameter (-param) parameter to specify a character string that can be accessed from ABL procedures. The AVM does not check the value of the PARAMETER attribute and you can use the parameter and attribute to store any arbitrary string value.