content when the view is first opening and when it is closing. These messages set up the content's visible instance data and prime the visible tree to be drawn on the screen. The messages are handled by the default handlers in <CODE>
VisContentClass</CODE>
, and you do not need to add anything to them to make them work.</P>
<P>
The messages sent to the content when the view is first created are</P>
<OL>
<LI>
<CODE>
MSG_META_CONTENT_SET_VIEW<BR>
</CODE>
This message passes the view's optr to the content, set