Retrieve the value stored in this object as a long. Only properties of
type LBM.MSG_PROPERTY_BYTE, LBM.MSG_PROPERTY_SHORT, LBM.MSG_PROPERTY_INT, LBM.MSG_PROPERTY_LONG and
LBM.MSG_PROPERTY_STRING can be retrieved as a long.

C# |
public long getLong()

The stored value, converted to a System.Long.