Procedure Vget(var msg: message_packet_type; var own: boolean;
               var stat: VI_status_type);
   EXTERNAL;
{*USER*
 
Look through our existing cache of field values to see if the field
value named in MSG.FIELD_NAME exists.  If it does, get the current value
and load it into MSG.FIELD_VALUE.  Also copy the current FIELD_STATUS
value and return VI_SUCCESS in STAT.  If the field is not found in cache,
return VI_NOT_FOUND in STAT.
 
If the field is "owned" by this program, return OWN as TRUE, else return
OWN as FALSE;
 
Other fields in MSG need not be current when VGET is called.
 
*ERROR CODES*
 
VI_SUCCESS - Specified field value was found in cache, and
             its current value retrieved.
 
VI_NOT_FOUND - Specified field value was not found in cache.
               No changes made to MSG variable.
 
}