t these fields are described in <A HREF="#VisContent_8.htm_94321"> Messages Received from the View</A>
.</P>


<H4 CLASS="HeadingC">
Input Flow Control</H4>
<PRE>VCNI_holdUpInputQueue, VCNI_holdUpInputCount, VCNI_holdUpInputFlags, MSG_VIS_CONTENT_HOLD_UP_INPUT_FLOW, MSG_VIS_CONTENT_RESUME_INPUT_FLOW, MSG_VIS_CONTENT_DISABLE_HOLD_UP, MSG_VIS_CONTENT_ENABLE_HOLD_UP</PRE>
<P>
GEOS<A NAME="VisContent_5.htm_IX_Input:holding up">
 </A>
 allows a visible tree to hold up input--that is, input will be stored elsewhe