.horizontal</td></tr></table></blockquote>Specifies if horizontal guides are enabled. </div></div><div class=CToolTip id="tt1557"><div class=CVariable><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">mxPartitionLayout.prototype.horizontal</td></tr></table></blockquote>Boolean indicating the direction in which the space is partitioned. </div></div><div class=CToolTip id="tt1558"><div class=CVariable><blockquote><table border=0 cellspacing=0 cellpadding=0 c