58469">
 </A>
Sample Handler for use with RulerShowControl</P>
<PRE>@method MyDisplayClass, MSG_MD_UPDATE_RULERS
	/* The RulerShowControl's RSCI_message field should be
	 * MSG_MD_UPDATE_RULERS. The message should have been declared
	 * using the RULER_SHOW_CONTROL_NOTIFY prototype. */</PRE>
<PRE>  if (attrs &amp; RSCA_SHOW_VERTICAL) { 
	@call LeftView::MSG_GEN_SET_USABLE(VUM_NOW); 
  }
  else {
	@call LeftView::MSG_GEN_SET_NOT_USABLE(VUM_NOW); 
  }
  if (attrs &amp; RSCA_SHOW_HORIZONTAL) { 
	@call TopView: