N_VISIBILITY_DESTINATION</PRE>
<P>
If a generic object has its GA_NOTIFY_VISIBILITY bit set, it will notify the GenApplication object when it becomes visible or not visible. The object does this by sending <CODE>
MSG_GEN_APPLICATION_VISIBILITY_NOTIFICATION</CODE>
 to the GenApplication object, passing the sending object's optr as data.</P>
<P>
You can alter this default behavior by including one or more attributes. ATTR_GEN_VISIBILITY_MESSAGE<A NAME="IX_ATTR_GEN_VISIBILITY_MESSAGE">
 </A>
 specifies a diffe