Retrieves messages from a named pipe local buffer.
function GetMessage: variant; overload;
Call the GetMessage method to retrieve messages from a named pipe local buffer.
GetMessage is desined to work only with Oracle DBMS_PIPE communication package which is the case only if TOraAlerter.EventType property has been set to etPipe.
Implemntation with the parameter will return True if the Item parameter holds not Null variant value or False otherwise.
Note: This method is considered obsolete now. In newer projects use functionally equivalent TOraAlerter.UnpackMessage method instead.