CTOR_CHANGED( @stack
        WindowHandle 		viewWindow,
        WWFixedAsDWord 		yScaleFactor,
        WWFixedAsDWord 		xScaleFactor);</PRE>
<P>
The ruler will receive this message when the main view's scale factor changes. Specifically, when the RulerContent `s scale is changing (which will happen because of the RulerView's link to the main view), its handler for <CODE>
MSG_META_CONTENT_VIEW_SCALE_FACTOR_CHANGED</CODE>
 sends this message to the VisRuler.</P>


<H6 CLASS="RefETitle">
MSG_VIS_RULER_GET_DESI