 </A>
MSG_VIS_RULER_INVALIDATE_WITH_SLAVES</H6>
<PRE CLASS="syntax">void MSG_VIS_RULER_INVALIDATE_WITH_SLAVES();</PRE>
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The ruler's default behavior will result in it redrawing itself at appropriate times. Depending on what use you put your ruler to, you may have to force it to redraw itself. If so, you should probably use this message.</P>
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