tClass</CODE>
 has four messages that it sends to itself to set the state of information hold-up. These messages are detailed below.</P>

<H6 CLASS="RefETitle">
<A NAME="VisContent_5.htm_IX_MSG_VIS_CONTENT_HOLD_UP_INPUT_FLOW">
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MSG_VIS_CONTENT_HOLD_UP_INPUT_FLOW</H6>
<PRE CLASS="syntax">void	MSG_VIS_CONTENT_HOLD_UP_INPUT_FLOW();</PRE>
<P>
This message increments the count in <CODE>
VCNI_holdUpInputCount</CODE>
. If this count is nonzero and HUIF_HOLD_UP_MODE_DISABLED is clear, subsequent input events w