e URL entered in the combobox is valid and exists, it is returned.
Otherwise, the URL selected in the treeview is returned instead.
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<td class="memname">QAbstractItemView view</td>
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<td class="paramtype">&nbsp;</td>
<td class="paramname"><em>self</em>&nbsp;)</td>
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<div class="memdoc"><p>Returns a pointer to the view which is used fo